Andromeda - Terrain/Landscape editor using Vulkan and Rust | Graphics Programming | Page 6

shadow trench Jun 7, 2023, 7:10 PM

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at least here

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we did do something kinda new, at least I havent found anything like it

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assembly-like html

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also as for the topic we got to pick our top choices from a list and then one was assigned

young oar Jun 7, 2023, 7:12 PM

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Never heard of it for sure lol

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It is very interesting though

hot yarrow Jun 7, 2023, 7:12 PM

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yeah thats the whole point i find strange

shadow trench Jun 7, 2023, 7:12 PM

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the original task was to write an efficient web browser for a low power embedded device

hot yarrow Jun 7, 2023, 7:13 PM

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"universities" dont encourage you to conduct actual research to figure out new shit

shadow trench Jun 7, 2023, 7:13 PM

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i came up with this thing as a solution

hot yarrow Jun 7, 2023, 7:13 PM

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im also still generally speaking not saying that the thesises you wrote suck or make no sense

shadow trench Jun 7, 2023, 7:13 PM

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Yeah I realize

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It was said at the beginning of the course

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that this was sort of like a thing to make you go through the steps of doing actual research

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but not actually doing anything new

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which is kinda lame imo

hot yarrow Jun 7, 2023, 7:14 PM

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ive read so many papers of students who i interviewed over the years 😄

shadow trench Jun 7, 2023, 7:14 PM

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heh, nice of you to read them at least

hot yarrow Jun 7, 2023, 7:14 PM

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outside of computer science its a little different for some weird reason

shadow trench Jun 7, 2023, 7:14 PM

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I have a friend who does biomedical stuff

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For their thesis they just had to conduct some predefined set of experiments and write a report

hot yarrow Jun 7, 2023, 7:14 PM

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yeah exactly

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and compare it to existing shit or explain why this an that will be new or simply breathtaking

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computer science people write a generic engine, lets say 70-80% of the ones i read so far

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anyway, i have no right to judge them 🙂

shadow trench Jun 7, 2023, 7:17 PM

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kek yeah says the one who is writing a generic engine

young oar Jun 7, 2023, 7:20 PM

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Lol

coarse yoke Jun 7, 2023, 7:22 PM

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for a bachelor's thesis in rendering, i wouldn't expect anything but generic

young oar Jun 7, 2023, 8:32 PM

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Yea I guess

coarse yoke Jun 7, 2023, 8:38 PM

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i guess that was said

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but like, idk how you can do anything relevantly new without understanding what exists first

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at least with any efficient use of time

potent quest Jun 8, 2023, 2:25 AM

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God damnti I missed a conservation that is extremely relevant to me

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So I gotta guess for my Bachelor’s thesis I ain’t going do something groundbreaking

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Which is obvious I’m confused on the “new” part of it

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Cuz like some people said I’m gonna do stuff that has been done before?

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Is that like through the same method or a different one but ends up essentially in the same spot

mild flower Jun 8, 2023, 3:17 AM

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aren't you currently in hs

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I don't think a bachelor's thesis is something you need to think about until maybe the last year or two of your degree

potent quest Jun 8, 2023, 3:44 AM

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Yeah but I’m gonna graduate this year and go to uni 💀

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And yeah I probably don’t. Considering the course that is for the thesis is 4th year

shrewd lynx Jun 8, 2023, 9:00 AM

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Yes, we even need to patent-search our crap

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it has to be novel

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thats why sometimes i get weirded out reading bachelor's papers of overseas students, why is it like 5 pages whereas ours is 60/70 already and counting

mild flower Jun 8, 2023, 9:01 AM

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I didn't even have to write a thesis for my bachelor's

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quite epic

shrewd lynx Jun 8, 2023, 9:02 AM

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our bachelor's right now involves creating a novel device that will be deployed to the sea so for immersion, i have to go to a ship, go down, and check oceanographic conditions

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fucking hell

mild flower Jun 8, 2023, 9:02 AM

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uh

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what field are you studying

shrewd lynx Jun 8, 2023, 9:02 AM

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Computer Engineering

mild flower Jun 8, 2023, 9:02 AM

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https://tenor.com/view/wtf-gif-gif-26042600

Tenor

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I guess they gotta put computers in the ocean sometimes

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for science

shrewd lynx Jun 8, 2023, 9:03 AM

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well yeah i guess i brought this down to myself choosing this project

mild flower Jun 8, 2023, 9:03 AM

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sounds really cool though

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just not what I would initially expect from such a degree 😄

shrewd lynx Jun 8, 2023, 9:04 AM

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yep lol

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anyway, other peoples bachelor's (published) involve having a device that sorts between good and bad produce using cv

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having some app that reads money for the blind, etc

mild flower Jun 8, 2023, 9:05 AM

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those are some nutty theses

shrewd lynx Jun 8, 2023, 9:05 AM

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indeed lol

shadow trench Jun 8, 2023, 9:05 AM

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Sounds cool but a lot of work lmao

shrewd lynx Jun 8, 2023, 9:06 AM

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it takes a whole year to finish

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so your 4th year at uni is solely dedicated to that + Internship

mild flower Jun 8, 2023, 9:06 AM

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ah

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I had to take a full load of classes in my 4th year

shadow trench Jun 8, 2023, 9:06 AM

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Ah here it’s also an entire year except it’s stuffed between other classes

mild flower Jun 8, 2023, 9:07 AM

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at my college we had year-long game team projects though

shrewd lynx Jun 8, 2023, 9:07 AM

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1st semester has some classes with the thesis too, because the 1st sem is dedicated to problem validation, writeups, patent search
but 2nd semester is full on just making the damn project

shadow trench Jun 8, 2023, 9:07 AM

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I see

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The course here is 9 credits, where you usually take 60/year

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(For comparison the master thesis is worth 24)

shrewd lynx Jun 8, 2023, 9:09 AM

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yeah actually i wonder if its worth to pursue masters here, because bachelor's is hard, but then you get to masters, it gets kind of red-tapey

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masters is required to teach, so people who usually flock there are the ones not really working on the field (just want to teach instead of in the industry)

mild flower Jun 8, 2023, 9:10 AM

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on one hand, I like teaching. on the other, I don't like teaching people who have zero interest in the topic

shrewd lynx Jun 8, 2023, 9:10 AM

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yes

mild flower Jun 8, 2023, 9:11 AM

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master's students probably care more than undergrads though

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oh wait but you wouldn't be teaching master level classes bleakekw

shrewd lynx Jun 8, 2023, 9:12 AM

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yes, you need phd 😄

mild flower Jun 8, 2023, 9:12 AM

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honestly quite horrible

shrewd lynx Jun 8, 2023, 9:13 AM

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all this hard work on papers, and what happens to them? dusting on the shelves because our govt didnt bother having good scitech department

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Anyway if it's not too bother here is me on the sea doing research

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while totally not checking out the specgloss of the water

mild flower Jun 8, 2023, 9:15 AM

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you look like a boat

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(no offense)

hot yarrow Jun 8, 2023, 10:29 AM

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thats cool

young oar Jun 8, 2023, 12:05 PM

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shrewd lynx *while totally not checking out the specgloss of the water*

Who doesn't do that

shadow trench Jun 8, 2023, 11:55 PM

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Pog I got the username change

coarse yoke Jun 9, 2023, 12:22 AM

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mild flower at my college we had year-long game team projects though

DESPAIR i did literally nothing but classes

wispy ore Jun 9, 2023, 9:50 AM

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shrewd lynx our bachelor's right now involves creating a novel device that will be deployed ...

> check oceanographic conditions
yeah as if that ain't what I am doing the entire time KEKW

potent quest Jun 9, 2023, 7:44 PM

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I'm so confused by rust lifetimes man

livid geode Jun 9, 2023, 8:05 PM

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its mostly theory

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trying to understand it by practice leaves a lot of edge cases

young oar Jun 9, 2023, 11:44 PM

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@shadow trench Sorry for pinging but are you ever going to add terrain "details" into your engine/terrain?

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Like trees, rocks, stuff like that

shadow trench Jun 9, 2023, 11:45 PM

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oh yeah i probably will

young oar Jun 9, 2023, 11:45 PM

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Awesome

shadow trench Jun 10, 2023, 12:33 AM

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https://github.com/voxelphile/boson

GitHub

GitHub - voxelphile/boson: A simple and beautiful Vulkan GPU abstra...

A simple and beautiful Vulkan GPU abstraction layer. - GitHub - voxelphile/boson: A simple and beautiful Vulkan GPU abstraction layer.

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Just came across this in a Reddit post

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Shit has 500 upvotes somehow

mild flower Jun 10, 2023, 12:34 AM

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Simplified API surface: No more 1000 LOC to draw a triangle (takes about 300-500).

coarse yoke Jun 10, 2023, 12:56 AM

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ok to be fair

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their definition of what a "line" is, is extremely encompassing

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e.g.:


        //This should start being self-explanatory.
        render_graph_builder.add(Task {
            resources: vec![
                //Now we copy from this buffer.
                Resource::Buffer(
                    Box::new(|render_info| render_info.staging_buffer),
                    BufferAccess::TransferWrite,
                ),
                //To this buffer
                Resource::Buffer(
                    Box::new(|render_info| render_info.time_buffer),
                    BufferAccess::TransferRead,
                ),
            ],
            task: |render_info, commands| {
                commands.copy_buffer_to_buffer(BufferCopy {
                    //Index of the buffer in the resource vector
                    from: 0,
                    //Index of the buffer in the resource vector
                    to: 1,
                    //Source (from parameter) buffer offset.
                    src: 0,
                    //Destination (to parameter) buffer offset.
                    dst: 0,
                    size: std::mem::size_of::<f32>(),
                })
            },
        });

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this is like 100 real SLOC

young oar Jun 10, 2023, 2:37 AM

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But also... why Box::new()??

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For functions/callbacks ig but that's... odd

livid geode Jun 10, 2023, 7:05 AM

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cause they probably want to erase the lambda type

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makes sense to me

shadow trench Jun 10, 2023, 8:20 AM

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I don’t like the api kek

wise viper Jun 10, 2023, 11:05 AM

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shadow trench I don’t like the api <:kek:939553745417695256>

what about it dont you like

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i also dont think an api like that could ever be judged by looking at a triangle program alone\

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no clue how extensive the rendergraph is for example

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                Resource::Image(
                    //This acquires the next image from the swapchain, essentially the image we can draw to
                    //and it is also the image which is drawn to the screen.
                    Box::new(|render_info| {
                        render_info
                            .device
                            .acquire_next_image(Acquire {
                                swapchain: render_info.swapchain,
                                semaphore: Some(render_info.acquire_semaphore),
                            })
                            .expect("failed to acquire next image")
                    }),
                    ImageAccess::ColorAttachment,
                    //This is the image aspect. It defaults to color images.
                    //If you are using a depth image, you will want `ImageAspect::DEPTH`
                    //and if you use the stencil buffer you will want to add `ImageAspect::STENCIL`
                    Default::default(),
                ),

tho the image3 attachment description is gigantic

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i wouldnt want to write that

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i guess it includes the aquite op but i would still want that to be a single line

shadow trench Jun 10, 2023, 11:12 AM

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Yeah a triangle program isn’t much to look at

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It seems a bit verbose for something that claims to simplify vulkan

wise viper Jun 10, 2023, 11:14 AM

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i would only change the rendergraph api

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its surface is too large

shadow trench Jun 10, 2023, 11:15 AM

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            //By default, boson will inject `#define the_shader_type_in_lowercase`
            //for example, the first shader will have `#define vertex` added to the top of the file before compilation
            //and the second shader will have `#define fragment`

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Yeah

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This looks fishy too

wise viper Jun 10, 2023, 11:15 AM

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i guess also the swapchain api is pretty big

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i wouldnt care about that, id make that smaller as well

shadow trench Jun 10, 2023, 11:15 AM

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I don’t understand why you’re expected to create semaphores yourself and then pass them in unmodified

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Kinda weird imo

wise viper Jun 10, 2023, 11:15 AM

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yea

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the rendergraph should do all sync

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dont know why that is needed, its unnessecary

shadow trench Jun 10, 2023, 11:16 AM

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Though it’s interesting to see another approach to essentially what I’m doing

wise viper Jun 10, 2023, 11:17 AM

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how old is this?

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i think a few months

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🤓 let me see phobos now

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hmhmhm

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immediately sussy on the gpu selector

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can the requirements have a scale or rating? Or will it just pick the first in the list with all requirements set?

shadow trench Jun 10, 2023, 11:20 AM

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Picks the first right now

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Im actually interested to see how the boson thing handles descriptor sets and resource lifetimes

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Does it expect you to do that yourself

wise viper Jun 10, 2023, 11:22 AM

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 // Bind some physical resources to the render graph.
            let mut bindings = PhysicalResourceBindings::new();
            bindings.bind_image("swapchain", &ifc.swapchain_image.as_ref().unwrap());
            let cmd = exec.on_domain::<domain::Graphics, DefaultAllocator>(None, None)?;
            // Record render graph to our command buffer
            graph.record(cmd, &bindings, &mut ifc, None, &mut ()).finish()

Do you have to set all bindings here?

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every time you call the graph? Also record? Does it re record or just set the resources + validate and runs the graph?

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https://tenor.com/view/run-gif-24406607

Tenor

wise viper Jun 10, 2023, 11:23 AM

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shadow trench Im actually interested to see how the boson thing handles descriptor sets and re...

like daxa im pretty sure

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i helped her with that

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first impression on phobos good. I like how short the readme program is

shadow trench Jun 10, 2023, 11:24 AM

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froge

shadow trench Jun 10, 2023, 11:24 AM

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wise viper ```rust // Bind some physical resources to the render graph. let mu...

You have to set them all here, but you could keep these bindings around for next time

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Right now reusing graphs is kinda not great

wise viper Jun 10, 2023, 11:25 AM

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🫡 making rendergraphs is a lot of trial and error

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i had this exact api in daxa before

shadow trench Jun 10, 2023, 11:25 AM

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Yeah, and rust lifetime rules don’t make it easier kek

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Storing callbacks is hard

wise viper Jun 10, 2023, 11:25 AM

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bleakekw Arc

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nah tbf i spamm my own ref counted ptr in daxa for these things as they are not in high numbers or copied ever

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automatic renderpass creation, does it merge nodes into single render passes?

shadow trench Jun 10, 2023, 11:27 AM

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No, it’s kinda braindead kek

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The whole rendergraph code is such a mess tbh

wise viper Jun 10, 2023, 11:30 AM

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🚨 BUFFER USES 🚨

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insert nano quote on buffer uses beeing useless (except for descriptor buffer)

mild flower Jun 10, 2023, 11:30 AM

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boofer

shadow trench Jun 10, 2023, 11:31 AM

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Is it

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That would simplify things

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A lot actually

wise viper Jun 10, 2023, 11:36 AM

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huuuuh

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what does it simplify

shadow trench Jun 10, 2023, 11:39 AM

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Not having to specify the usage flags, also unifying all the scratch allocators into one

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Right now you get a scratch allocator for each "common" usage

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uniform buffer, storage buffer, vertex and index

wise viper Jun 10, 2023, 11:40 AM

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the biggest tradeoff i see so far with phobos is abstracting the window

shadow trench Jun 10, 2023, 11:40 AM

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but itd be nice if that was just one allocator for scratch mem

wise viper Jun 10, 2023, 11:40 AM

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that is nice for getting going and some usability but it serve limits you in the end

shadow trench Jun 10, 2023, 11:41 AM

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hmm wdym

wise viper Jun 10, 2023, 11:41 AM

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do you support any multi window?

wise viper Jun 10, 2023, 11:41 AM

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shadow trench Right now you get a scratch allocator for each "common" usage

yea i just have one pool

shadow trench Jun 10, 2023, 11:41 AM

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not atm no, its been somewhere on my radar but i havent investigated it enough

wise viper Jun 10, 2023, 11:41 AM

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for all buffs

shadow trench Jun 10, 2023, 11:41 AM

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yeh thats a lot easier

wise viper Jun 10, 2023, 11:42 AM

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shadow trench not atm no, its been somewhere on my radar but i havent investigated it enough

that is a sad part tho because then you have to decide to have two apis for that, the current simple + an explicit for extra windows or only explicit for general code cimplicity

shadow trench Jun 10, 2023, 11:43 AM

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hmm yeah thats true

wise viper Jun 10, 2023, 11:43 AM

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but you will definetly have higher adoption if you have a simple path

shadow trench Jun 10, 2023, 11:43 AM

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the simple path could probably be an abstraction over the explicit one

wise viper Jun 10, 2023, 11:44 AM

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yea

shadow trench Jun 10, 2023, 11:46 AM

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i will ponder the windowing issue

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thanks for the insight froge

wise viper Jun 10, 2023, 11:47 AM

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i mean it doesnt really matter tho

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the windowing

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99% of cases you wont need it

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just some randome thing i saw

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accidental bikeshed induction is my greatest strength

shadow trench Jun 10, 2023, 11:49 AM

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it doesnt until i suddenly want multi window support in my own programs :P

wise viper Jun 10, 2023, 11:49 AM

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👍

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geneerallyi would only ever support things that is actually needed

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otherwise you will impl things that wont be used

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thats dummmm

shadow trench Jun 10, 2023, 11:50 AM

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yeah thats true

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i mostly add features as I need them myself right now anyway

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A lot of random vk commands are just not implemented because i havent used them yet

wise viper Jun 10, 2023, 11:51 AM

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based

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👹 i still need to implement rt pipelines in daxa i am putting that off for nearly a year now

shadow trench Jun 10, 2023, 11:52 AM

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rt pipelines are somewhat annoying because they are ever so slightly different from normal ones

wise viper Jun 10, 2023, 11:52 AM

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i need to convince people of bindless

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i am on a cruisade

shadow trench Jun 10, 2023, 11:52 AM

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kekw

wise viper Jun 10, 2023, 11:53 AM

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but gl like bindings that phobos has a rea also super ez to use

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so nothing against that

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btw cods rendergraph team made a presentation rescently

shadow trench Jun 10, 2023, 11:54 AM

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oooh i should watch that

shadow trench Jun 10, 2023, 11:55 AM

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wise viper but gl like bindings that phobos has a rea also super ez to use

yeah, nothing stops you from doing bindless with phobos afaik tho

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its just not the default

wispy ore Jun 10, 2023, 11:58 AM

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wise viper i need to convince people of bindless

what about bindless bindful KEKW

wise viper Jun 10, 2023, 11:58 AM

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frog_think '

wispy ore Jun 10, 2023, 11:59 AM

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4 uints of pushconstant mapping into two bindsets (descriptor index and array offset) which map into up to 16 other descriptors (or inline parameters) is what I do

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D3D12, so no BDA

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think this is the closest thing to BDA you can get

wise viper Jun 10, 2023, 12:00 PM

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that is just normal bindless

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which map into up to 16 other descriptors (or inline parameters)

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idk what that means

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d3d12 ah, no clue about that

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i thought you can just index the heap there

shadow trench Jun 10, 2023, 12:01 PM

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do you not have unbounded descriptor arrays

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in d3d12

wispy ore Jun 10, 2023, 12:01 PM

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It's more like a restriction I made to make allocation free

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we have better things than unbounded descriptor arrays lol

shadow trench Jun 10, 2023, 12:01 PM

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ah lol

wispy ore Jun 10, 2023, 12:01 PM

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You can just

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cast descriptors essentially in hlsl sm6.6

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directly indexing the descriptor heap

wise viper Jun 10, 2023, 12:02 PM

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wispy ore 4 uints of pushconstant mapping into two bindsets (descriptor index and array of...

psuhconstant in dx12?

wispy ore Jun 10, 2023, 12:02 PM

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You have pushconstants

wise viper Jun 10, 2023, 12:02 PM

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wise viper >> which map into up to 16 other descriptors (or inline parameters)

what are the 16 descriptor types

wispy ore Jun 10, 2023, 12:02 PM

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I use them to index into an indirection table which has 16 uints of size

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they are freely chosen

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templated

wise viper Jun 10, 2023, 12:03 PM

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in vulkan i only need 4

shadow trench Jun 10, 2023, 12:03 PM

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wispy ore directly indexing the descriptor heap

wtf thats op

wise viper Jun 10, 2023, 12:03 PM

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yea it is

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vulkan nearly got that as well btw

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but nooo glsl must stay garbage

shadow trench Jun 10, 2023, 12:04 PM

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😔

wispy ore Jun 10, 2023, 12:04 PM

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    template<typename T>
    T load(uint index)
    {
        ByteAddressBuffer buffer = ResourceDescriptorHeap[NonUniformResourceIndex(handle.read_index())];
        return buffer.Load<T>(index * sizeof(T));
    }

wise viper Jun 10, 2023, 12:04 PM

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that cant do atomics tho

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or fine grained stores

wispy ore Jun 10, 2023, 12:04 PM

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and handle.read_index() is just returning the index (I have write index as well for RW access)

wise viper Jun 10, 2023, 12:05 PM

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honestly hlsl is less usable then glsl

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its buffers are unacceptable

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when hlsl gets buffer pointer tho

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uuuuuuuh that will be the day

wispy ore Jun 10, 2023, 12:06 PM

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wise viper when hlsl gets buffer pointer tho

I hope that is soon

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but my answer to that some time last year was "they can't share anything about it" KEKW

shadow trench Jun 10, 2023, 12:06 PM

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was devsh not working on something related to that

wise viper Jun 10, 2023, 12:07 PM

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yes

wispy ore Jun 10, 2023, 12:07 PM

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wise viper or fine grained stores

how exactly do you mean that?

wise viper Jun 10, 2023, 12:07 PM

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devsh hired someone from khronos to implement it in hlsl

wispy ore Jun 10, 2023, 12:07 PM

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well

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you can use spv intrinsics in hlsl

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so with enough abstraction or some macros you can get BDA-like interfaces

wise viper Jun 10, 2023, 12:07 PM

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wispy ore how exactly do you mean that?

you cant do byteaddress_buffer[addres].field = d;

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because you must load and store

shadow trench Jun 10, 2023, 12:07 PM

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wise viper devsh hired someone from khronos to implement it in hlsl

https://tenor.com/view/bojack-horseman-mr-peanutbutter-peanutbutter-crossover-gif-20449450

Tenor

wise viper Jun 10, 2023, 12:08 PM

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so you have to do
byteaddressBuffer.Store<FieldT>(structaddr + fieldoffset, value);

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in effect you must hardcode struct offsets

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which is insane

wise viper Jun 10, 2023, 12:08 PM

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wispy ore so with enough abstraction or some macros you can get BDA-like interfaces

i tried

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it wont ever be nice to use

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because hlsl doesnt have references yet

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(that will come as well tho)

wispy ore Jun 10, 2023, 12:12 PM

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It'd be nice to have offsetof in hlsl

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then it'd not be as bad with atomics

wispy ore Jun 10, 2023, 12:14 PM

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wispy ore ```cpp template<typename T> T load(uint index) { ByteAddress...

btw. in use it looks like this

Bindset bnd = read_bindset_uniform<Bindset>(pc.bindset_buffer, pc.bindset_index);
Ocean_Parameters pars = bnd.params.load_uniform<Ocean_Parameters>();

shadow trench Jun 10, 2023, 12:14 PM

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that looks quite nice

wispy ore Jun 10, 2023, 12:15 PM

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yeah although I did have to implement all the texture and buffer load/store/sample/gather functions KEKW

hot yarrow Jun 10, 2023, 12:17 PM

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reminds me of gltf

potent quest Jun 11, 2023, 9:12 PM

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one must understand what falling into the depths must feel like before they rise like a pheonix

wispy ore Jun 12, 2023, 7:02 AM

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potent quest one must understand what falling into the depths must feel like before they rise...

are you talking about playing valorant KEKW

shadow trench Jun 12, 2023, 9:54 AM

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potent quest one must understand what falling into the depths must feel like before they rise...

SCohno

hot yarrow Jun 12, 2023, 10:15 AM

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potent quest one must understand what falling into the depths must feel like before they rise...

i dont get it either

potent quest Jun 12, 2023, 8:18 PM

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wispy ore are you talking about playing valorant <:KEKW:666849321462792234>

yes KEKW

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now i felt the depths

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now i can rise to rust

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the vulkan -> vuk -> valorant -> phobos-rs pipeline is wild

coarse yoke Jun 12, 2023, 9:31 PM

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monkaHmm

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apparently i will be using phobos soon?

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i have the first three requirements met

potent quest Jun 13, 2023, 12:15 AM

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join the pipeline

shadow trench Jun 13, 2023, 10:04 AM

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bleakekw

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Time to rewrite it in rust

wispy ore Jun 13, 2023, 10:21 AM

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I will never give in KEKW

shadow trench Jun 13, 2023, 10:33 AM

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One day

potent quest Jun 13, 2023, 8:41 PM

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With how the foundation going implode might be right bleakekw

wispy ore Jun 13, 2023, 8:59 PM

#

potent quest With how the foundation going implode might be right <:bleakekw:1082598350303539...

right with what? KEKW

potent quest Jun 13, 2023, 11:44 PM

#

Not giving in to rewriting it in rust

#

It’s joever at the foundation

young oar Jun 13, 2023, 11:57 PM

#

Lol true

#

Other than that rust is pretty cool ngl

potent quest Jun 15, 2023, 4:00 AM

#

Yo penguin

#

Dont feel rushed but when is the drop of nightly rust?

#

like vaguest of in progress

shadow trench Jun 15, 2023, 8:54 AM

#

you mean phobos without nightly?

#

i kinda have exams rn but i can try to push a fix today

mild flower Jun 15, 2023, 8:55 AM

#

you can probably skip an exam and still pass

shadow trench Jun 15, 2023, 8:56 AM

#

its only software design how hard can be it

mild flower Jun 15, 2023, 8:57 AM

#

#

lol I was just standing and a spider dropped in front of my face while searching for the perfect gif

shadow trench Jun 15, 2023, 8:58 AM

#

kek

mild flower Jun 15, 2023, 9:00 AM

#

Live spider reaction

shadow trench Jun 15, 2023, 9:00 AM

#

interesting looking spooder

mild flower Jun 15, 2023, 9:00 AM

#

It's floating like 15cm from my phone

shadow trench Jun 15, 2023, 9:01 AM

#

🕷️

mild flower Jun 15, 2023, 9:02 AM

#

frogstare

wise viper Jun 15, 2023, 9:26 AM

#

floor + door leak

shadow trench Jun 15, 2023, 10:33 AM

#

bleakekw

coarse yoke Jun 15, 2023, 4:44 PM

#

this is true

#

if you're writing foo bar functions on repeat

young oar Jun 17, 2023, 3:55 AM

#

Might be interesting to look at ngl:
https://hal.science/hal-01339224/document

#

"Terrain Generation Using Procedural Models Based on Hydrology"

shadow trench Jun 17, 2023, 4:28 AM

#

👀

#

Definitely

coarse yoke Jun 17, 2023, 4:56 AM

#

ctrl+f time, see first result

The overall time necessary
to create the input slope maps was less than five minutes.

#

uh oh 😃

#

actually i'm not sure what that's referring to, the execution times seem shorter

young oar Jun 17, 2023, 5:13 AM

#

coarse yoke uh oh 😃

I mean if it was the case then oof

#

I don't think they mentioned anything bout realtime

#

Pretty slow-ish though

#

The rivers in their system look pretty good though so it's alr

coarse yoke Jun 17, 2023, 5:16 AM

#

young oar I don't think they mentioned anything bout realtime

real timeisn't relevant

#

but artist tolerable is

young oar Jun 17, 2023, 5:17 AM

#

Yea you right you right

#

I've been so into proc gen these past few years that I forgot that's how it usually is lol

coarse yoke Jun 17, 2023, 5:19 AM

#

my procgen stuff at work aims at roughly like under a second per square km, but that's completely arbitrary

#

seems to be a good requirement to hit

young oar Jun 17, 2023, 5:20 AM

#

Mine is under 2ms for a volume of 64x64x64 (GPU compute)

#

And to think that I thought my old Unity terrain (which took 300ms per 32x32x32 chunk) was good

#

🥲 good times

#

Unfortunately most of the time is spent generating chunks that are empty anyways

#

So if I somehow figure out how to early exit for those it should significantly boost performance

shadow trench Jun 17, 2023, 1:31 PM

#

That’s not too bad for editor stuff

shadow trench Jun 18, 2023, 8:40 PM

#

@livid geode @potent quest without fsr2 phobos no longer requires nightly

#

use 0.9.2

potent quest Jun 18, 2023, 8:41 PM

#

bet

#

would i be fine using the latest commit?

shadow trench Jun 18, 2023, 8:42 PM

#

yeah, thats the same

#

you should probably fix the commit though to make sure it doesnt break until youre ready to update

#

git = ..., rev = ...

coarse yoke Jun 18, 2023, 8:43 PM

#

terrain when 🙂

shadow trench Jun 18, 2023, 8:43 PM

#

some time after exams ill do more work again

coarse yoke Jun 18, 2023, 8:43 PM

#

ah fair

shadow trench Jun 18, 2023, 8:43 PM

#

but i also go on holiday for 2 weeks so i wont have access to my pc for a bit

#

i can definitely do shader graph stuff on my laptop though

coarse yoke Jun 18, 2023, 8:43 PM

#

the school cycle no longer exists to me now that i am not in it 🙂

shadow trench Jun 18, 2023, 8:44 PM

#

(if i find my charger)

shadow trench Jun 18, 2023, 8:44 PM

#

coarse yoke the school cycle no longer exists to me now that i am not in it 🙂

PrayGe

potent quest Jun 18, 2023, 8:48 PM

#

school ends on thursday
trust me ill ray trace then (i will proceed to procastinate on levels never seen before)

shadow trench Jun 18, 2023, 8:48 PM

#

bleakekw

hot yarrow Jun 18, 2023, 8:54 PM

#

havent posted a screenshot lately pengu 🙂

#

any progress?

shadow trench Jun 18, 2023, 8:54 PM

#

havent done anything lately 😔

hot yarrow Jun 18, 2023, 8:55 PM

#

trapped in factorio/satisfactory?

shadow trench Jun 18, 2023, 8:57 PM

#

a mix of studying and ori and the will of the wisps

#

mostly studying sadly

nimble solar Jun 18, 2023, 9:01 PM

#

Last year exam season was pretty chill

#

This year it's hell

#

9th circle of hell

shadow trench Jun 18, 2023, 9:01 PM

#

quite relatable

nimble solar Jun 18, 2023, 9:02 PM

#

It's not even the difficulty, it's the sheer nerve of the professors to go on random trips, abandoning us to our fate

#

And letting us know exam dates the day before

#

frog_gone

shadow trench Jun 18, 2023, 9:02 PM

#

wtf

nimble solar Jun 18, 2023, 9:03 PM

#

The exam itself is in quantum superposition, we know the probability of it happening on each day of the month, we can't pinpoint it

#

KEKW

shadow trench Jun 18, 2023, 9:03 PM

#

kekw

livid geode Jun 19, 2023, 6:14 AM

#

shadow trench <@222275966485921792> <@676195749800968192> without fsr2 phobos no longer requir...

cc @dusty marten

shadow trench Jun 19, 2023, 7:48 AM

#

I also fixed the shader thing in the egui integration

#

It just ships the compiled ones now

livid geode Jun 19, 2023, 8:30 PM

#

nikoLFG

#

ill try to compile the rex editor tomorrow

shadow trench Jun 19, 2023, 10:14 PM

#

epic

#

lmk if theres any issues

livid geode Jun 20, 2023, 8:24 PM

#

i forgor

polar muralBOT Jun 20, 2023, 8:25 PM

#

Alright aleok, I'll remind you about compile rex in 1 day. ID: 58288669

#

Successfully removed reminder.

#

Alright aleok, I'll remind you about compile rex editor in 13 hours, 33 minutes and 52 seconds. ID: 58288704

livid geode Jun 20, 2023, 8:26 PM

#

there

hot yarrow Jun 20, 2023, 8:27 PM

#

would have been funny if it was 13 hrs 13 mins and 13 secs

shadow trench Jun 20, 2023, 8:32 PM

#

lol

young oar Jun 21, 2023, 1:19 PM

#

If you ever will implement procedural gen

#

I found a nice height function that will create some dunes

#

shadow trench Jun 21, 2023, 1:20 PM

#

looks quite nice yeah

#

procedulal gen is somewhere on the radar

young oar Jun 21, 2023, 1:20 PM

#

Compute proc gen is sooo much fun

shadow trench Jun 21, 2023, 1:21 PM

#

unfortunately the radar is obscured by exams bleakekw

young oar Jun 21, 2023, 1:21 PM

#

shadow trench unfortunately the radar is obscured by exams <:bleakekw:1082598350303539240>

Lol same

#

Hs exams though so much less important but still

shadow trench Jun 21, 2023, 1:21 PM

#

also much easier kek

#

but yeah

hot yarrow Jun 21, 2023, 4:01 PM

#

that looks neat

coarse yoke Jun 21, 2023, 4:21 PM

#

young oar

-abs(perlin(coord)) + perlin(coord * vec2(1,20))? 🙂

young oar Jun 21, 2023, 4:22 PM

#

Well yea that's the main part lol

#

Here I'll send full source code

#

float spikey = snoise(position.xz * 0.001) * 0.5 + 0.5;
spikey = clamp((spikey - 0.5) * 1 + 0.5, 0, 1); 

biome1 = (1 - spikey) * snoise(position.xz * 0.001 + vec2(snoise(position.xz * 0.0002)) * vec2(1.3, 0.2)) * 60;
biome1 += (1 - spikey) * sin(dot(position.xz, vec2(1, 1)) * 0.01) * 60;
biome1 += (1 - spikey) * cos(dot(position.xz, vec2(0.2, 2)) * 0.001) * 45;

biome1 += spikey * abs(snoise(position.xz * vec2(2.1, 1.0) * 0.002)) * 60 * cellular(position.xz * 0.001).x;
biome1 += position.y;

#

The oriented sine waves really make it look interesting

shadow trench Jun 21, 2023, 4:25 PM

#

i remember seeing something like this in #wip

#

not too long ago

young oar Jun 21, 2023, 4:29 PM

#

I wrote the function under 20 mins so it wouldn't be surprising if it was implemented before lul

shadow trench Jun 21, 2023, 4:30 PM

#

Lmao

coarse yoke Jun 21, 2023, 4:31 PM

#

good dunes are hard to do without simulation

young oar Jun 21, 2023, 4:31 PM

#

For sure yea

coarse yoke Jun 21, 2023, 4:32 PM

#

imo you can take the -sin(coord.x) and do some domain distortion on it, but you need the max slope/erosion step as a post process

young oar Jun 21, 2023, 4:33 PM

#

Right

#

I'm thinking of using a rotated -abs(snoise()) so it aligns with the "wind" dir

#

Cause atm all the ridges are uniform and they're going in all directions

#

Also there's a sphere at 0, 0

#

Probably due to unshifted cos / sin lol

shadow trench Jun 21, 2023, 4:35 PM

#

Lmfao

#

Ominous floating ball

young oar Jun 21, 2023, 4:36 PM

#

Implemented terrain CSG operations without actually implementing them GG ez

#

Wait no I'm just extremely dumb and I forgor to remove debug sphere

coarse yoke Jun 21, 2023, 4:44 PM

#

rotating perlin will just rotate the artifacts

young oar Jun 21, 2023, 4:44 PM

#

coarse yoke rotating perlin will just rotate the artifacts

Wdym?

coarse yoke Jun 21, 2023, 4:46 PM

#

perlin is meant to be direction agnostic, it's not because of artifacts

#

but they're not a good thing to use because you don't have much control over them

young oar Jun 21, 2023, 4:46 PM

#

Ohh sorry mb I didn't mean direction as in perlin direction

#

I just mean I literally take the input point and rotate it

#

Which makes the noise aligned with a specific angle

coarse yoke Jun 21, 2023, 4:47 PM

#

ah with the stretch

young oar Jun 21, 2023, 4:47 PM

#

Yepp

coarse yoke Jun 21, 2023, 4:52 PM

#

that doesn't work sometimes because many noise inputs take a scale value, so to do that effect you'd have to rotate outside of the noise, and it'd end up being rotate->scale

#

but i guess it works if you can scale->rotate 🙂

young oar Jun 21, 2023, 4:54 PM

#

Makes sense yea

nimble solar Jun 22, 2023, 8:48 AM

#

hi

#

Mr. NotAPenguin, can I observe your descriptor set / descriptor pool api

shadow trench Jun 22, 2023, 8:49 AM

#

cmd_buf.bind_uniform_buffer(0, 0, buffer) kek

#

Literally OpenGL

nimble solar Jun 22, 2023, 8:49 AM

#

Yes but the behind the scenes

shadow trench Jun 22, 2023, 8:49 AM

#

Right

#

Check out descriptor/builder.rs and descriptor/cache.rs

#

Once I get on pc I can do some more in detail explaining

#

I just need to unbed myself

nimble solar Jun 22, 2023, 8:50 AM

#

shadow trench I just need to unbed myself

the ultimate prison

shadow trench Jun 22, 2023, 8:51 AM

#

Truly

#

The hardest escape room

mild flower Jun 22, 2023, 8:55 AM

#

nimble solar Yes but the *behind the scenes*

just look at an opengl driver

shadow trench Jun 22, 2023, 8:56 AM

#

kekw

#

okay

#

@nimble solar

nimble solar Jun 22, 2023, 9:04 AM

#

I am here

shadow trench Jun 22, 2023, 9:04 AM

#

So I have a DescriptorBuilder

#

Which just stores bindings in a hashmap or something

#

When you call bind_xxx it just adds a binding to the list

#

On draw() or dispatch(), those bindings are flushed and you get back a struct with all bindings

#

I then have a fancy HashMap<DescriptorSetBinding, DescriptorSet> where thats looked up

#

if it doesnt exist, make a new set and update it immediately

#

If it does, use that one

nimble solar Jun 22, 2023, 9:06 AM

#

I don't see how per frame descriptors are handled

#

How can you guarantee 2 equal descriptor bindings will result in different descriptor sets based on the frame index

shadow trench Jun 22, 2023, 9:06 AM

#

Why should they have to

#

descriptor sets are never updated

#

Only recreated with new contents

nimble solar Jun 22, 2023, 9:07 AM

#

🤔

shadow trench Jun 22, 2023, 9:07 AM

#

Either they point to a different resource (for this frame), so they are different

#

Or they point to the same resource thats synchronized across frames

nimble solar Jun 22, 2023, 9:08 AM

#

// assume the bindings are the exact same
frame 0 => no desc set: make new one
frame 1 => no desc set: make new one
frame 0 => desc set found, use that (??)```

wise viper Jun 22, 2023, 9:09 AM

#

bruh

shadow trench Jun 22, 2023, 9:09 AM

#

In this case it would be

frame 0 => no set, make new one
frame 1 => use previous
frame 0 => use previous

nimble solar Jun 22, 2023, 9:09 AM

#

Hmmmm

shadow trench Jun 22, 2023, 9:09 AM

#

As long as you dont vkUpdateDescriptorSets and the resource is synchronized, this should be fine

nimble solar Jun 22, 2023, 9:09 AM

#

Ah I see

#

yes

#

You hash VkWriteDescriptorBufferInfo as well right?

#

Or whatever the hell its called KEKW

shadow trench Jun 22, 2023, 9:10 AM

#

Yeah but its a custom struct because vk structs are not nice to work with

#

its translated into that though

nimble solar Jun 22, 2023, 9:11 AM

#

very gud

#

I understand now

shadow trench Jun 22, 2023, 9:11 AM

#

#[derive(Debug, Clone, Hash, PartialEq, Eq)]
pub(crate) struct DescriptorImageInfo {
    pub sampler: vk::Sampler,
    pub view: ImageView,
    pub layout: vk::ImageLayout,
}

#[derive(Debug, Clone, Hash, PartialEq, Eq)]
pub(crate) struct DescriptorBufferInfo {
    pub buffer: BufferView,
}

mild flower Jun 22, 2023, 9:11 AM

#

nimble solar Or whatever the hell its called <:KEKW:666849321462792234>

VkBababooeyCreateInfo

shadow trench Jun 22, 2023, 9:11 AM

#

One thing to note is that the set layout and pool used are hashed with the create info

nimble solar Jun 22, 2023, 9:12 AM

#

Why?

#

I thought I could get away with

HashMap<layout, pool>
HashMap<Vec<bindings>, desc_set>```

shadow trench Jun 22, 2023, 9:12 AM

#

Because sets created from different pools are different

#

Same with the set layout

nimble solar Jun 22, 2023, 9:13 AM

#

Ah

#

yes indeed

shadow trench Jun 22, 2023, 9:13 AM

#

The pool is kinda weird

nimble solar Jun 22, 2023, 9:13 AM

#

This means I need one more layer of "hidden shit"

shadow trench Jun 22, 2023, 9:13 AM

#

The cache holds one descriptor pool it allocates all descriptors from

#

And when it runs out it creates a new bigger one where all new descriptors will be created from

#

Also itll set the pool field of all requested descriptors to this new pool

#

So old descriptor sets wont be caught by the lookup anymore and will be "moved over" to the new pool

nimble solar Jun 22, 2023, 9:14 AM

#

What does moved over mean exactly

#

recreated and oldies are pushed into the oblivion queue?

shadow trench Jun 22, 2023, 9:14 AM

#

Yes

#

That way I can get rid of the old pool after some frames

nimble solar Jun 22, 2023, 9:15 AM

#

Why not just make new pool and let the old ones live

#

poor things

shadow trench Jun 22, 2023, 9:15 AM

#

Because then you end up with potentially many pools

nimble solar Jun 22, 2023, 9:16 AM

#

Hmm

#

I was thinking of allocating pools in pages (assuming non-bindless layout)

shadow trench Jun 22, 2023, 9:16 AM

#

you only really need one pool though

#

as long as its big enough

#

so this approach just converges to the needed pool size over time

nimble solar Jun 22, 2023, 9:17 AM

#

It degenerates if I allocate only storage buffers or only uniform buffers though

#

I mean

#

I will only allocate, realistically

#

2 descriptor sets

shadow trench Jun 22, 2023, 9:17 AM

#

no because it only grows for the type it ran out of

nimble solar Jun 22, 2023, 9:17 AM

#

maybe 3

nimble solar Jun 22, 2023, 9:17 AM

#

shadow trench no because it only grows for the type it ran out of

Ah interesting

shadow trench Jun 22, 2023, 9:18 AM

#

so suppose the current size is
UNIFORM_BUFFER, 1
STORAGE_BUFFER, 2
and you allocate 3 storage buffers, it grows to
UNIFORM_BUFFER, 1
STORAGE_BUFFER, 4

nimble solar Jun 22, 2023, 9:24 AM

#

regarding cmd_buf.bind_uniform_buffer(0, 0, buffer)

#

Does this add an entry to the descriptor builder

shadow trench Jun 22, 2023, 9:25 AM

#

yea

nimble solar Jun 22, 2023, 9:25 AM

#

when do you build()

shadow trench Jun 22, 2023, 9:25 AM

#

draw() or dispatch() (but only if there are unflushed changes)

#

(or trace_rays)

nimble solar Jun 22, 2023, 9:26 AM

#

I don't see draw_mesh_tasks_ext, disappointed

shadow trench Jun 22, 2023, 9:26 AM

#

kek

#

one day

nimble solar Jun 22, 2023, 9:26 AM

#

what does "unflushed changes" mean thonk

shadow trench Jun 22, 2023, 9:26 AM

#

no calls to bind_xxx since the last draw

nimble solar Jun 22, 2023, 9:27 AM

#

how many hashmaps do you have

#

fucks sake

shadow trench Jun 22, 2023, 9:27 AM

#

bleakekw

#

many

#

let me check

#

#

could be worse

#

though there are a coupl instances of the last one (every "create if not exists" cache uses that)

nimble solar Jun 22, 2023, 9:29 AM

#

mfw vulkan needs a relational database

shadow trench Jun 22, 2023, 9:30 AM

#

vulkan backed by sql

nimble solar Jun 22, 2023, 9:30 AM

#

create table if not exists DescriptorSet (
    pool,
    layout,
    bindings,
    foreign key (bindings)
)```

wispy ore Jun 22, 2023, 9:30 AM

#

oh god

#

and it's lowercase as well

mild flower Jun 22, 2023, 9:31 AM

#

I took one SQL class and simultaneously passed while not knowing wtf I was doing

shadow trench Jun 22, 2023, 9:32 AM

#

yeah i had one databases class last year

mild flower Jun 22, 2023, 9:35 AM

#

that was the moment I learned I was not destined to be anywhere near a web backend

#

well tbf, I barely passed my first graphics class and didn't know what I was doing in that either

shadow trench Jun 22, 2023, 9:36 AM

#

i have my first graphics class next year

#

im kinda excited

nimble solar Jun 22, 2023, 9:36 AM

#

"ok students today we will be learning OpenGL 1.1"

shadow trench Jun 22, 2023, 9:36 AM

#

bleakekw

#

no i think it focuses on raytracing theory

mild flower Jun 22, 2023, 9:37 AM

#

if you haven't done ray tracing yet, it should still be interesting

#

but if it touches on graphics APIs then I'm certain you'll be utterly bored

shadow trench Jun 22, 2023, 9:38 AM

#

intro to raytracing
camera and perspective
transformations and scene graph
shading
rendering equation
shadowing and direct lighting
acceleration structures
advanced visual effects
texture mapping
production context (?)

mild flower Jun 22, 2023, 9:38 AM

#

u're gonna wreck that class fr

shadow trench Jun 22, 2023, 9:38 AM

#

probably

#

but should be fun still

nimble solar Jun 22, 2023, 9:39 AM

#

RenderEquation

shadow trench Jun 22, 2023, 9:39 AM

#

theres also computer graphics 2, which has

advanced GI algorithms
shape and shape analysis in computer graphics
perception in computer graphics
alternative evaluations of visibility calculations

#

Thonk

#

the only thing i recognize is GI

#

lol

#

theres also a project class for actual implementation

mild flower Jun 22, 2023, 9:40 AM

#

the third one could be anything

shadow trench Jun 22, 2023, 9:40 AM

#

looks like its focused on raytracing

#

might try to convince my professor to let me do it in vk kek

nimble solar Jun 22, 2023, 9:41 AM

#

you had your acceleration structures and ray trasversal functions to help you

#

I did my balls in GL

#

with only the power of god and anime on my side

shadow trench Jun 22, 2023, 9:41 AM

#

GL more like Giant L

#

maybe my master thesis can be some cool graphics project

nimble solar Jun 22, 2023, 9:43 AM

#

look at my balls

shadow trench Jun 22, 2023, 9:43 AM

#

where denoiser

nimble solar Jun 22, 2023, 9:43 AM

#

No temporal accumulation because it broke

mild flower Jun 22, 2023, 9:43 AM

#

nice balls

shadow trench Jun 22, 2023, 9:43 AM

#

oh

#

i member my temporal shadow accumulation painting my entire scene red

#

and making transparent shadows

#

somehow

nimble solar Jun 22, 2023, 9:43 AM

#

bleakekw

shadow trench Jun 22, 2023, 9:43 AM

#

bleakekw

#

it was very broken

mild flower Jun 22, 2023, 9:44 AM

#

shadow trench i member my temporal shadow accumulation painting my entire scene red

you accidentally killed the gpu gnome

#

bleakekw

shadow trench Jun 22, 2023, 9:44 AM

#

SCohno

#

most annoying part of the masters programme is i have to pick some nonsense classes to take

mild flower Jun 22, 2023, 9:46 AM

#

do you have to do the master's program

shadow trench Jun 22, 2023, 9:47 AM

#

I mean I can also just call it here I guess but eh

mild flower Jun 22, 2023, 9:47 AM

#

don't want to become a corporate wage slave just yet, huh

shadow trench Jun 22, 2023, 9:47 AM

#

exactly

#

"history of computer science" seems easy enough

#

"AI ethics" too

#

adds up to the min amount of nonsense I have to take

mild flower Jun 22, 2023, 9:48 AM

#

AI ethics? just have them do whatever the law says dummy

warped beacon Jun 22, 2023, 9:48 AM

#

Just watch some Robert Miles

shadow trench Jun 22, 2023, 9:48 AM

#

bleakekw

warped beacon Jun 22, 2023, 9:48 AM

#

Easy

nimble solar Jun 22, 2023, 9:48 AM

#

The only masters in my uni is AI

#

😦

shadow trench Jun 22, 2023, 9:48 AM

#

we have 6 main options

#

distributed systems, safe software, AI, software engineering, human-computer interaction (big pog), computational cs

nimble solar Jun 22, 2023, 9:49 AM

#

human-computer interaction is just permament bikeshed over how to handle glfw input

shadow trench Jun 22, 2023, 9:49 AM

#

bleakekw

#

it has graphics, image processing, visualization, etc

livid geode Jun 22, 2023, 9:50 AM

#

nimble solar look at my balls

nice size, they seem pretty balanced, very round 9/10

mild flower Jun 22, 2023, 9:52 AM

#

mine only has a masters in computer science 💀

nimble solar Jun 22, 2023, 9:57 AM

#

I kinda want to move and go to a bigger uni

#

only problem is that I'm broke 💀

shadow trench Jun 22, 2023, 9:58 AM

#

are you stuck in the us of a

wispy ore Jun 22, 2023, 9:58 AM

#

nimble solar I kinda want to move and go to a bigger uni

why

nimble solar Jun 22, 2023, 9:58 AM

#

good old EU

nimble solar Jun 22, 2023, 9:58 AM

#

wispy ore why

because I couldn't care less about AI

shadow trench Jun 22, 2023, 9:58 AM

#

real

nimble solar Jun 22, 2023, 9:58 AM

#

and the only masters here is AI

livid geode Jun 22, 2023, 9:59 AM

#

mild flower mine only has a masters in computer science 💀

there you can learn how to do advanced uml

shadow trench Jun 22, 2023, 9:59 AM

#

bleakekw

#

truly

mild flower Jun 22, 2023, 10:01 AM

#

I went to a gamedev college so fortunately 90% of my classes were relevant to things I'm interested in

wispy ore Jun 22, 2023, 10:01 AM

#

nimble solar and the only masters here is AI

imagine having pre-specialized masters

livid geode Jun 22, 2023, 10:01 AM

#

mild flower I went to a gamedev college so fortunately 90% of my classes were relevant to th...

ah that's nice

shadow trench Jun 22, 2023, 10:01 AM

#

my cousin went to a gamedev college

nimble solar Jun 22, 2023, 10:01 AM

#

btw the "I'm broke" problem is just cause moving costs money

shadow trench Jun 22, 2023, 10:01 AM

#

but not for coding

#

he did art stuff

nimble solar Jun 22, 2023, 10:01 AM

#

University costs 0€ (actually 160€ but they give it back if you are an exellent student KEKW )

livid geode Jun 22, 2023, 10:02 AM

#

i ended up not going to cs because i was kinda predicting it was all going to be terrible java and c

shadow trench Jun 22, 2023, 10:02 AM

#

now hes working for some game studio in berlin

wispy ore Jun 22, 2023, 10:02 AM

#

mild flower I went to a gamedev college so fortunately 90% of my classes were relevant to th...

bsc or ba

mild flower Jun 22, 2023, 10:02 AM

#

Bsc

wispy ore Jun 22, 2023, 10:02 AM

#

nice

#

most gamedev schools I've found were ba

mild flower Jun 22, 2023, 10:02 AM

#

I specifically avoided the art and game design departments lol

wispy ore Jun 22, 2023, 10:02 AM

#

yeah

#

understandable. game design degrees are somewhat memeable

mild flower Jun 22, 2023, 10:02 AM

#

Yeah

shadow trench Jun 22, 2023, 10:03 AM

#

yeah just make a good game bro

mild flower Jun 22, 2023, 10:03 AM

#

Plus the one at my school overworks students to hell

wispy ore Jun 22, 2023, 10:03 AM

#

think university of breda or some other dutch uni had a gametech degree

shadow trench Jun 22, 2023, 10:03 AM

#

take voxels

wispy ore Jun 22, 2023, 10:03 AM

#

there's also digipen ofc.

shadow trench Jun 22, 2023, 10:03 AM

#

add battlepass

#

add hyperrealistic graphics

#

you have game

wispy ore Jun 22, 2023, 10:03 AM

#

but both of those are private-ish or fully private unis

#

so they are expensive (for european standards) KEKW

mild flower Jun 22, 2023, 10:03 AM

#

I went to a school that is notorious for overworking students, but fortunately through the power of friendship I passed

shadow trench Jun 22, 2023, 10:04 AM

#

the power of copying each others work?

nimble solar Jun 22, 2023, 10:04 AM

#

mild flower I went to a school that is notorious for overworking students, but fortunately t...

are there schools that do not overwork students?

wispy ore Jun 22, 2023, 10:04 AM

#

Overwork how?

nimble solar Jun 22, 2023, 10:04 AM

#

I have a team of 2 other boys, we share basically everything KEKW

nimble solar Jun 22, 2023, 10:05 AM

#

wispy ore Overwork how?

You know, like schedule 8 exams in 3 weeks

#

Like it's happening to me right now

wispy ore Jun 22, 2023, 10:05 AM

#

just don't take that many courses

#

easy

shadow trench Jun 22, 2023, 10:05 AM

#

i share a lot of stuff within my friend group but we also have large wikis with material from previous years

nimble solar Jun 22, 2023, 10:05 AM

#

wispy ore just don't take that many courses

I would like to graduate in 3 years though

shadow trench Jun 22, 2023, 10:05 AM

#

old exams, solutions, notes, etc

mild flower Jun 22, 2023, 10:05 AM

#

certain classes that assign an absurdly high workload (particularly our project classes, where we're expected to pump out 1-2 complete games a year)

wispy ore Jun 22, 2023, 10:05 AM

#

where are you again?

mild flower Jun 22, 2023, 10:05 AM

#

who, me

wispy ore Jun 22, 2023, 10:06 AM

#

In Europe finishing STEM degrees in "Regelstudienzeit" (3 years, 6 semesters) is a meme

nimble solar Jun 22, 2023, 10:06 AM

#

That is correct

wispy ore Jun 22, 2023, 10:06 AM

#

@nimble solar I meant

nimble solar Jun 22, 2023, 10:06 AM

#

I think nobody ever finished the degree in 3 years + 1 semester

#

Even so I want to believe KEKW

wise viper Jun 22, 2023, 10:06 AM

#

my uni had stats on it for compsci

#

median was 9 semesters

#

only 10% made the 6

wispy ore Jun 22, 2023, 10:07 AM

#

I know some people who did but they either had previous working experience or already had some other degree or they were "super intelligent" so to speak

shadow trench Jun 22, 2023, 10:07 AM

#

if i pass the exams i have to retake ill get there in 3 years

#

but

#

algebra

#

bleakekw

wispy ore Jun 22, 2023, 10:07 AM

#

none of those represented an average student

shadow trench Jun 22, 2023, 10:07 AM

#

analysis

#

bleakekw

nimble solar Jun 22, 2023, 10:07 AM

#

Algebra is fine

shadow trench Jun 22, 2023, 10:07 AM

#

is it really

wispy ore Jun 22, 2023, 10:07 AM

#

algebra is completely fine

#

yeah

nimble solar Jun 22, 2023, 10:07 AM

#

Complex Analysis is the real problem

#

bleakekw

wise viper Jun 22, 2023, 10:07 AM

#

math is the best part by far

shadow trench Jun 22, 2023, 10:07 AM

#

i only have to take real analysis luckily

wispy ore Jun 22, 2023, 10:08 AM

#

From all courses I've taken, the math heavy ones are the ones that sticked the most

shadow trench Jun 22, 2023, 10:08 AM

#

tbf the math courses are quite fun

#

but also hard

nimble solar Jun 22, 2023, 10:08 AM

#

wispy ore none of those represented an average student

bold of you to assume I'm average

#

||I'm actually below average||

shadow trench Jun 22, 2023, 10:08 AM

#

im taking optional extra math

#

(as opposed to business nonsense)

wispy ore Jun 22, 2023, 10:09 AM

#

wispy ore I know some people who did but they either had previous working experience or al...

But yeah, whoever came up with "6 semesters is enough for CS" probably did not study CS KEKW

shadow trench Jun 22, 2023, 10:09 AM

#

kekw

#

i mean there are the unis that have like 75% programming in their cs programme

wispy ore Jun 22, 2023, 10:09 AM

#

Mine is very maths heavy

#

like very KEKW

nimble solar Jun 22, 2023, 10:10 AM

#

I somehow managed to get 36 credits in one semester, I did Calc 1,2 and Real analysis

#

btw calc 1 also includes algebra, geometry & stuff

shadow trench Jun 22, 2023, 10:10 AM

#

im taking 36 each semester too this year

mild flower Jun 22, 2023, 10:10 AM

#

44% of students graduated within 4 years at my skool

nimble solar Jun 22, 2023, 10:10 AM

#

Even weirder, I passed with nearly full marks on each of them KEKW

wispy ore Jun 22, 2023, 10:10 AM

#

Okay just for clarification

#

when we talk algebra do we mean abstract algebra

shadow trench Jun 22, 2023, 10:10 AM

#

abstract algebra

nimble solar Jun 22, 2023, 10:10 AM

#

ah

shadow trench Jun 22, 2023, 10:11 AM

#

i also have a whole 6 credit geometry class but thats really fun

nimble solar Jun 22, 2023, 10:11 AM

#

I thought the easy algebra

shadow trench Jun 22, 2023, 10:11 AM

#

projective geometry is kinda cool

wispy ore Jun 22, 2023, 10:11 AM

#

mild flower 44% of students graduated within 4 years at my skool

you are making electron suffer

#

KEKW

mild flower Jun 22, 2023, 10:11 AM

#

Oops

wispy ore Jun 22, 2023, 10:11 AM

#

KEKW

mild flower Jun 22, 2023, 10:11 AM

#

You're the third person to tell me that

#

1 2 tie a shoe

nimble solar Jun 22, 2023, 10:11 AM

#

text rendering is hard

wispy ore Jun 22, 2023, 10:12 AM

#

nimble solar I thought the easy algebra

is the easy algebra just traditional maths

mild flower Jun 22, 2023, 10:12 AM

#

inshallah Arabic script will be rendered properly

wispy ore Jun 22, 2023, 10:12 AM

#

and linear algebra

nimble solar Jun 22, 2023, 10:12 AM

#

easy algebra is linear algebra ye

shadow trench Jun 22, 2023, 10:12 AM

#

we had a separate linear algebra class

#

and then an optional abstract algebra one

wispy ore Jun 22, 2023, 10:12 AM

#

yeah we had linalg and quite a bit of abstract algebra

mild flower Jun 22, 2023, 10:13 AM

#

I wish I got into graphics before taking (and nearly failing) my linear algebra class

livid geode Jun 22, 2023, 10:13 AM

#

wispy ore <:KEKW:666849321462792234>

how the fuck does it even work if they're in separate html containers lmao

mild flower Jun 22, 2023, 10:13 AM

#

I would have cared so much more about my math classes

wispy ore Jun 22, 2023, 10:14 AM

#

shadow trench abstract algebra

Given an epimorphism phi: R->F, R being a ring and F being a field, prove or disprove that the existence of phi implies that R must also be a field

#

stuff like that KEKW

shadow trench Jun 22, 2023, 10:14 AM

#

bleakekw

#

yes

#

that could definitely be an exam question

#

its kinda cool but the exam was just words words words

wispy ore Jun 22, 2023, 10:15 AM

#

mild flower I wish I got into graphics before taking (and nearly failing) my linear algebra ...

I wish to retroactively waste less time and be better in school early and be better in uni early KEKW

nimble solar Jun 22, 2023, 10:15 AM

#

deccer would love lin and abstract algebra

#

lots of "isms"

shadow trench Jun 22, 2023, 10:15 AM

#

true

mild flower Jun 22, 2023, 10:15 AM

#

wispy ore I wish to retroactively waste less time and be better in school early and be bet...

Youth is wasted on the young frfr

nimble solar Jun 22, 2023, 10:15 AM

#

homeomorphisms, endomorphism, monomorphism

wispy ore Jun 22, 2023, 10:15 AM

#

shadow trench that could definitely be an exam question

This is actually very similar to an exam question I've had

shadow trench Jun 22, 2023, 10:15 AM

#

sounds like an exam i would fail

#

(i did)

#

i have to retake it in august

mild flower Jun 22, 2023, 10:16 AM

#

nimble solar homeomorphisms, endomorphism, monomorphism

Don't forget ismisms

wispy ore Jun 22, 2023, 10:16 AM

#

mild flower Youth is wasted on the young frfr

I'm 25 I am old already

#

KEKW

shadow trench Jun 22, 2023, 10:16 AM

#

gonna spend my summer studying algebra

#

i just really want to pass this geometry class

wispy ore Jun 22, 2023, 10:16 AM

#

from now on it's only downhill KEKW

nimble solar Jun 22, 2023, 10:16 AM

#

real

#

I'm 21 and falling apart already

wispy ore Jun 22, 2023, 10:16 AM

#

imagine being 21 bleakekw

shadow trench Jun 22, 2023, 10:17 AM

#

im only 20 NanaStare

#

21 soon ish though

#

3 more months until old age

wispy ore Jun 22, 2023, 10:17 AM

#

I don't even have my b.sc yet and I'm 25 bleakekw

nimble solar Jun 22, 2023, 10:17 AM

#

if I don't die first, I am expected to graduate next year

#

emphasis on the "if I don't die first"

#

Third year is going to be absolutely brutal

wispy ore Jun 22, 2023, 10:18 AM

#

objective: survive

#

I mean at the very least you don't have to look for work whilst studying

#

I assume

nimble solar Jun 22, 2023, 10:18 AM

#

fortunately

shadow trench Jun 22, 2023, 10:18 AM

#

welp time to head to uni to study, i require ac

#

my room is on the 4th floor its a death trap in here

nimble solar Jun 22, 2023, 10:19 AM

#

ye we bikeshedded too much, it's time to do the boring study

wispy ore Jun 22, 2023, 10:19 AM

#

wdym it's only 36°C or so in the middle of my room as example, perfect to die slowly

shadow trench Jun 22, 2023, 10:19 AM

#

Troll

nimble solar Jun 22, 2023, 10:19 AM

#

one human, cooked medium rare

wispy ore Jun 22, 2023, 10:23 AM

#

shadow trench sounds like an exam i would fail

At the very least it doesn't contain the same deranged statements from topology

#

KEKW

#

Like what do you mean the power of the real numbers to the real numbers in a cartesian product?

mild flower Jun 22, 2023, 10:27 AM

#

I'm glad I never progressed to abstract math of any sort

#

linear algebra was already pushing it bleakekw

wispy ore Jun 22, 2023, 10:27 AM

#

Honestly

#

I wanted to take this course

#

I think topology is very interesting

#

but I don't think I would pass this course any time

#

Because just looking at the script/notes looks like you need a maths degree to understand it in the first place

shadow trench Jun 22, 2023, 10:28 AM

#

wispy ore Like what do you mean the power of the real numbers to the real numbers in a car...

What the

wispy ore Jun 22, 2023, 10:28 AM

#

(it's a maths undergrad course to be fair and I'm doing SWE which is 90% CS KEKW )

shadow trench Jun 22, 2023, 10:28 AM

#

What does that even mean

wispy ore Jun 22, 2023, 10:28 AM

#

shadow trench What does that even mean

EXACTLY

#

I think

#

it is supposed to be a topological space

#

but I am not sure KEKW

#

oh

#

So apparently it's the topological space of real valued functions

shadow trench Jun 22, 2023, 10:33 AM

#

Ooh

#

Hmm

#

Nope not doing it for me

wispy ore Jun 22, 2023, 10:39 AM

#

actualy not a topological space but apparently the set of real valued functions

#

but probably with some special property?

#

idk, looking into those 1000+ page "notes" without being able to search for that definition is a bit tricky KEKW

shadow trench Jun 22, 2023, 10:41 AM

#

Yeah lol

#

Wait I think I sort of understand where it’s coming from

#

Alright

young oar Jun 22, 2023, 2:53 PM

#

shadow trench

Ngl you can swap those for AHashMap or FxHashMap

#

Much faster compared to the default STD one as long as you don't mind not having DOS protection iirc

shadow trench Jun 22, 2023, 2:56 PM

#

Yeah I’ll do that eventually probably

young oar Jun 22, 2023, 2:58 PM

#

Don't you love it when activating shadowmaps increases your frame timings from 4ms to 8.5ms

shadow trench Jun 22, 2023, 3:02 PM

#

bleakekw

shrewd lynx Jun 23, 2023, 12:59 AM

#

Wavyyy

#

@young oar btw did you try implementing hex tiling

young oar Jun 23, 2023, 1:03 AM

#

Never heard of it. I presume it's a method to reduce tiling?

#

If that's the case then I will definitely implement it when my exams are over

shrewd lynx Jun 23, 2023, 1:11 AM

#

young oar Never heard of it. I presume it's a method to reduce tiling?

Yes

#

Hex tiling then rotate the uvs

young oar Jun 23, 2023, 1:12 AM

#

Sweet yea I'll implement it

#

Unfortunately my terrain frag shader isn't really modular atm (just one frag file) so it's a bit of a pain to implement custom materials and such

coarse yoke Jun 23, 2023, 1:15 AM

#

i do not understand

#

what do you use hex tiling for

shrewd lynx Jun 23, 2023, 1:16 AM

#

coarse yoke what do you use hex tiling for

Terrain, to remove texture repetition

coarse yoke Jun 23, 2023, 1:17 AM

#

how does hex tiling remove texture repititions

shrewd lynx Jun 23, 2023, 1:17 AM

#

https://youtu.be/GjO8XLOzNQM

YouTube

Unity

Surface Gradient Bump Mapping Samples - Hex Tiling

Surface Gradient Bump Mapping Samples is a collection of interactive tutorial samples demonstrating the concepts and workflow of Surface Gradient Bump Mapping for Shader Graph and HDRP.

⬇️ Download the sample pack: https://on.unity.com/3BwITyg

📝 Documentation: https://on.unity.com/3FO401O

▶ Play video

#

I didn't really implement it yet

#

But here it is

#

There is also schotastic texturing

#

Here it is on gtasa

wispy ore Jun 23, 2023, 1:19 AM

#

https://jcgt.org/published/0011/03/05/paper.pdf

coarse yoke Jun 23, 2023, 1:22 AM

#

shrewd lynx https://youtu.be/GjO8XLOzNQM

can you not do this same exact thing with a square grid

wispy ore Jun 23, 2023, 1:22 AM

#

https://eheitzresearch.wordpress.com/722-2/ always good to look at the original algorithm as well

Eric Heitz's Research Page

eheitzresearch

High-Performance By-Example Noise using a Histogram-Preserving Blending Operator Eric Heitz and Fabrice Neyret High-Performance Graphics 2018 Abstract We propose a new by-example noise algorithm th…

coarse yoke Jun 23, 2023, 1:22 AM

#

i guess the borders aren't straight

#

but still it feels unfair to compare basic UV tiling with this when you're calling it hex tiling

#

ah nvm the heitz paper has more

wispy ore Jun 23, 2023, 1:24 AM

#

I think you could do this with a square grid

#

but then you would require an additional sample?

coarse yoke Jun 23, 2023, 1:25 AM

#

ye

#

so the hex tiling gives you properties that make it easier to blend random sub-sections from your surface

young oar Jun 23, 2023, 1:37 AM

#

I'm already at 27 texture samples worst case scenario and 9 in best case scenario, I should probably optimize that before implementing hex tiling and making it worse lol

shrewd lynx Jun 23, 2023, 1:47 AM

#

Why do you have 27

#

Are you using blended textures?

young oar Jun 23, 2023, 1:47 AM

#

Exactly

shrewd lynx Jun 23, 2023, 1:47 AM

#

Classic

young oar Jun 23, 2023, 1:47 AM

#

And with triplanar mapping (which samples it 3 times already)

shrewd lynx Jun 23, 2023, 1:47 AM

#

I ditched triplanar for that reason

young oar Jun 23, 2023, 1:48 AM

#

I really should too lol

#

I could use something like biplanar

#

https://iquilezles.org/articles/biplanar/

Inigo Quilez

Articles on computer graphics, math and art

#

Seems like it doesn't have that many artifacts

nimble solar Jun 23, 2023, 9:52 AM

#

sir penguin

#

how exactly is self.deferred_pool_delete.push(new_pool); safe?

#

The pool has no way of knowing whether it still has descriptor sets allocated from it does it?

#

In my case it should work? I think?

#

Because the pool is ref-counted, so when I swap it out with the new one, only the descriptor sets previously allocated hold a reference to the pool

#

So eventually, after enough frames pass, the cache releases all descriptor sets with the old pool, deleting the thing safely

shadow trench Jun 23, 2023, 10:01 AM

#

nimble solar how exactly is `self.deferred_pool_delete.push(new_pool);` safe?

its safe because the lifetime of the descriptors in the deferred queue is shorter than that of the pool delete queue

#

so the descriptors get deleted first

nimble solar Jun 23, 2023, 10:01 AM

#

I see

#

while is_open {
    set = device.make_set() // this grows the pool, all previous sets are unreachable, TTL: N
    // N frames pass, descriptor sets are freed
    // N + 2 frames pass, the descriptor pool is freed
}```

#

makes sense I think

shadow trench Jun 23, 2023, 10:03 AM

#

Something like that yeah

nimble solar Jun 23, 2023, 10:06 AM

#

By the way

#

pub fn with_descriptor_set<F: FnOnce(&DescriptorSet) -> Result<()>>(
    &self,
    bindings: DescriptorSetBinding,
    f: F,
) -> Result<()>```

#

There's no way this isn't a syntax error, is there?
nervous

#

This is harder to read than C++ wtf KEKW

#

Oh wait, I got it

#

jeez, < and > were a mistake

shadow trench Jun 23, 2023, 10:08 AM

#

nimble solar There's no way this isn't a syntax error, is there? <:nervous:836935166437883934...

Nope all good KEKW

#

Oh yeah the reason that’s a thing at all is because you can’t return something that references a locked mutex owned by your struct

#

Even if you wanted you can’t make that safe sadly

nimble solar Jun 23, 2023, 10:09 AM

#

You gotta love Type 0 languages, where Result<()>> somehow is a valid sequence KEKW

shadow trench Jun 23, 2023, 10:09 AM

#

kek

nimble solar Jun 23, 2023, 10:09 AM

#

shadow trench Even if you wanted you can’t make that safe sadly

What do you mean by you can't make it safe?

shadow trench Jun 23, 2023, 10:09 AM

#

If you don’t return the lock it’s obviously not safe

#

If you return the lock + value referencing it you get a self referencing type which is a nightmare in rust and generally not possible

#

(You can’t move them)

#

(Which means you can’t return them either)

nimble solar Jun 23, 2023, 10:11 AM

#

Hm

#

sounds like a rust thing

shadow trench Jun 23, 2023, 10:12 AM

#

It is

#

The solution is to just pass a callback that does something with the value behind the lock

young oar Jun 23, 2023, 3:01 PM

#

shadow trench Oh yeah the reason that’s a thing at all is because you can’t return something t...

Yea unfortunately 😔

coarse yoke Jun 24, 2023, 5:40 AM

#

@young oar #wip message
fyi good materials are a large part of making terrains look especially good

#

i dont mean good assets even necessarily

#

just height + slope based with good noises

nimble solar Jun 24, 2023, 1:55 PM

#

I am back with more questions

#

Regarding: https://github.com/NotAPenguin0/phobos-rs/blob/6173d795afde929c9f95ca3bf33ff07bbda147f4/src/descriptor/cache.rs#L29 and https://github.com/NotAPenguin0/phobos-rs/blob/6173d795afde929c9f95ca3bf33ff07bbda147f4/src/descriptor/descriptor_set.rs#L120

#

When does DescriptorSet::create fail?

#

VK_ERROR_OUT_OF_POOL_MEMORY?

shadow trench Jun 24, 2023, 2:08 PM

#

it could yeah

#

i try to catch OOM before allocating though

#

but it could also fail due to device lost or other random bugs/errors

#

so I tend to propagate that result upwards

nimble solar Jun 24, 2023, 2:09 PM

#

github search is garbage, I can't seem to find your OOM detection

shadow trench Jun 24, 2023, 2:10 PM

#

actually

#

yeah it does just catch the oom lol

#

guess i was lazy

shadow trench Jun 24, 2023, 2:10 PM

#

nimble solar github search is garbage, I can't seem to find your OOM detection

just clone the repo at this point :P

#

much easier to navigate in intellij

nimble solar Jun 24, 2023, 2:10 PM

#

I might KEKW

#

I'd have to install rust

shadow trench Jun 24, 2023, 2:10 PM

#

its easy

#

(and you should anyway) kekw

nimble solar Jun 24, 2023, 2:11 PM

#

I don't really understand how descriptor pools work tbh

shadow trench Jun 24, 2023, 2:11 PM

#

in vulkan in general or in phobos

nimble solar Jun 24, 2023, 2:12 PM

#

Allocating a descriptor set with a descriptor layout means reserving pool memory for all descriptors in the layout?

shadow trench Jun 24, 2023, 2:12 PM

#

only for that set, not the whole layout

#

a descriptor set is just a blob of memory

#

descriptor pools are an abstraction for an allocator for that memory

nimble solar Jun 24, 2023, 2:12 PM

#

So does vkUpdateDescriptorSet reserve memory

shadow trench Jun 24, 2023, 2:13 PM

#

no

#

vkAllocateDescriptorSets takes memory from the descriptor pool

#

vkUpdateDescriptorSet just writes to it

nimble solar Jun 24, 2023, 2:14 PM

#

Hm

#

The spec says this:

the allocation may fail due to lack of space if the call to vkAllocateDescriptorSets would cause the number of any given descriptor type to exceed the sum of all the descriptorCount members of each element of VkDescriptorPoolCreateInfo::pPoolSizes with a type equal to that type.

#

How does vkAllocateDescriptorSets know how many descriptors I'm going to be binding

shadow trench Jun 24, 2023, 2:18 PM

#

you give it the set layout

#

the set layout describes how many descriptors can possibly be inside the descriptor set

nimble solar Jun 24, 2023, 2:19 PM

#

Hm

#

Does this go boom?

#

Actually scratch that

#

I think this should work

auto set = device.allocate_set();
auto new_sizes = hash_map();
if !set { // OOM
    for each binding in bindings {
        for each size in device.pool().sizes() {
            if binding.type == size.type {
                new_sizes[size.type] = std::max(size.count * 2, size.count + binding.count);
            }
        }
    }
}```?

shadow trench Jun 24, 2023, 2:23 PM

#

thats pretty much what I do yeah

#

execpt I dont bother with max, I just multiply by 2 and retry if it fails again kekw

#

max would probably be smarter

#

i think thats pretty much grow_pool_size

#

yk you could also switch to rust and use phobos and not have to figure this out Troll

nimble solar Jun 24, 2023, 2:25 PM

#

After I get tired of writing my own thing who knows

#

If this was in C++ you might've had a better chance

shadow trench Jun 24, 2023, 2:40 PM

#

it used to be

#

but it was worse

young oar Jun 24, 2023, 2:51 PM

#

coarse yoke <@463353335269818368> https://discord.com/channels/318590007881236480/7149407497...

Yea right

#

I haven't implemented a "post-process" step for my voxel generator yet so it can't switch materials based on normals yet

#

I'll have to implement my CPU graph representation and an interpreter that will convert it to GLSL to be able to have custom voxel "passes"

potent quest Jun 24, 2023, 9:42 PM

#

Penguin

#

I was going through your C++ handles

#

How do you handle invalidating them?

potent quest Jun 24, 2023, 10:04 PM

#

Ohh none

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ig you have it so it manages itself and you don't have a need for a HandleManager

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Also within your phobos-rs code

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I'm so confused

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How are you able to create Result<Type> without specifying the Error type?

hot yarrow Jun 24, 2023, 10:28 PM

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do you need a specific error type?

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or usually just a string, with the error message

potent quest Jun 24, 2023, 10:30 PM

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Ohh looks like pengiun is using a library anyhow which overrides Result

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I'm confused what it does? ?

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It looks like an equivalent of Box<dyn Error>

shadow trench Jun 24, 2023, 10:31 PM

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potent quest How are you able to create Result<Type> without specifying the Error type?

anyhow aliases result to Result<T, anyhow::Error>

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Yeah thats a fancy Box<dyn Error>

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Ill eventually phase it out for phobos::Error, Im just lazy

potent quest Jun 24, 2023, 10:32 PM

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KEKW

young oar Jun 24, 2023, 10:32 PM

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I use thiserror

potent quest Jun 24, 2023, 10:32 PM

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Alright thank you

young oar Jun 24, 2023, 10:32 PM

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It helps so much for creating custom Error types

shadow trench Jun 24, 2023, 10:32 PM

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anyhow is just so convenient

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yeah thiserror is nice

potent quest Jun 24, 2023, 10:32 PM

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But why not use Box<dyn Error> instead?

shadow trench Jun 24, 2023, 10:32 PM

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anyhow has more fancy utilities

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like anyhow!("Some formatted error {}", i);

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or ensure!(x <= y, "fuck it we ball {}", x);

young oar Jun 24, 2023, 10:33 PM

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Ooh that is pretty convenient yea

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Unfortunately when unwrapping Result<_, T> where T: Error implemented from thiserror it doesn't return the custom error message

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Which sucks

potent quest Jun 24, 2023, 10:34 PM

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Ohhh anyhow provides debug and traceback formatting

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that makes sense

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Me when lib.rs declares all the methods at a global level and I have no clue where they come from KEKW
Its very unfortunate that both phobos::Window and winit::Window exist

shadow trench Jun 24, 2023, 10:36 PM

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potent quest How do you handle invalidating them?

imagine trying to have safe C++ code bleakekw

potent quest Jun 24, 2023, 10:37 PM

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bleakekw look im trying

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Does C++ have like a rust equivalent of Result<T, E>?

nimble solar Jun 24, 2023, 10:38 PM

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Safest C++ code

potent quest Jun 24, 2023, 10:38 PM

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or am i gonna have to do a very dumb down implemenrtation

nimble solar Jun 24, 2023, 10:38 PM

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potent quest Does C++ have like a rust equivalent of Result<T, E>?

lmfao

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of course not KEKW

mild flower Jun 24, 2023, 10:38 PM

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potent quest Does C++ have like a rust equivalent of Result<T, E>?

std:: expected

potent quest Jun 24, 2023, 10:38 PM

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only jaker can write safe c++

nimble solar Jun 24, 2023, 10:38 PM

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No one implements std::expected, it's C++23

potent quest Jun 24, 2023, 10:38 PM

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oh KEKW

mild flower Jun 24, 2023, 10:39 PM

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You can implement your own. That's the beauty of see pee pee

potent quest Jun 24, 2023, 10:39 PM

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i see see

shadow trench Jun 24, 2023, 10:39 PM

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I mean

young oar Jun 24, 2023, 10:39 PM

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see sharp

shadow trench Jun 24, 2023, 10:39 PM

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Id argue a good standard library impl is better than dozens of result types from different libraries incompatible with each other kek

nimble solar Jun 24, 2023, 10:40 PM

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Just use asserts and use out params + enum return type

shadow trench Jun 24, 2023, 10:40 PM

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dread_cat

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the C way

potent quest Jun 24, 2023, 10:40 PM

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real i'm trying to do both my c++ ray tracer and the rust ray tracer at the same time
One i feel pain and the other im confused

nimble solar Jun 24, 2023, 10:40 PM

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the easiest way

shadow trench Jun 24, 2023, 10:41 PM

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the confusion will fade

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clarity of mind will be achieved

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enlightenment is within reach now

potent quest Jun 24, 2023, 10:41 PM

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Coping that i do attain it

wise viper Jun 24, 2023, 10:41 PM

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nimble solar the easiest way

and has a million problems

potent quest Jun 24, 2023, 10:41 PM

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bleakekw

wise viper Jun 24, 2023, 10:41 PM

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the rust way is the best usually

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and aa easy

nimble solar Jun 24, 2023, 10:42 PM

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I agree, but do not have rust in C++

shadow trench Jun 24, 2023, 10:42 PM

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I really really like rust's error handling

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Probably one of my favorite parts

potent quest Jun 24, 2023, 10:42 PM

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nimble solar I agree, but do not have rust in C++

alr alr ill scrap my bare bones result class i had

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time to rewrite it again KEKW

nimble solar Jun 24, 2023, 10:42 PM

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I mean try it

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I did write a couple std::expected's

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I never enjoyed how it worked, because C++ is garbage

young oar Jun 24, 2023, 10:43 PM

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shadow trench Probably one of my favorite parts

It's so good

nimble solar Jun 24, 2023, 10:43 PM

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You can't really do anything rust does with errors

shadow trench Jun 24, 2023, 10:43 PM

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The annoying part is you need some sort of language support to have rust's try operator (?)

nimble solar Jun 24, 2023, 10:43 PM

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Yes

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You can't really emulate Rust's Result

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std::expected is but a mere imitation

potent quest Jun 24, 2023, 10:44 PM

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ya i just want the bare bones of it

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i literally just wanted a way to know if something worked or failed and some methods that could handle it nicely like .expect or .unwrap

Safety is KEKW

nimble solar Jun 24, 2023, 10:44 PM

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bool func() {
}```

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my brother in CPP

potent quest Jun 24, 2023, 10:45 PM

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oh yeah i did overengineer it

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i mean just a struct with a template of a type and an error type

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What is futures

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ahh so many crates

hot yarrow Jun 24, 2023, 10:55 PM

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hehe

#Andromeda - Terrain/Landscape editor using Vulkan and Rust