Remix Plus - Extra features & API support for Modern Games

[velvet bear]

are you using claude opus4.7?

I can clearly feel that 4.7 has gotten dumber over the past few days. When it first dropped, it completely blew me away.

[opal rain]

yep

it's so much worse than it used to be

[velvet bear]

But now I can really feel that its ability to maintain and connect context has gotten noticeably weaker.

[velvet bear]

yep

[wide kelp]

how is that even allowed

r u paying the same?

[opal rain]

all $200

i didn't even want it this month, but they only allow 1 refund total per plan... ever. and i had gotten one a few months prior

so i couldn't get a refund for it

[velvet bear]

I think they are occasionally stealth-swapping the model for an older version from time to time, while still charging the exact same fee.

[opal rain]

i don't think so. it behaves like 4.7, it's just they're using lower quantizations or similar to save money running it. which reduces its reasoning capacity

[swift jackal]

This is so peam

https://tenor.com/view/peak-it's-peak-mid-it's-mid-shaking-head-gif-14930609437819582275

[clear sandal]

Yeah, it deleted our entire source for psychonauts 2 right after getting the camera matrices and rendering a triangle

[wide kelp]

on god?

[clear sandal]

Yes

Lol

Or like

The source for the mod*

[wide kelp]

ya ya

thats horrible

is deleting code language model's next "can't count how many Rs are in raspberry"

[clear sandal]

It said "let me rework the system to figure out why the window is hanging on creation" then thinks then no follow up text, we said continue and it said "the source folder for the mod is empty, how would you like to continue with phase 2?"

And we checked and yep it was all gone

[opal rain]

😖

that happened to me once with opus 4.6 when it was really really shit

[heavy cradle]

oh it was broken in cr's original build.

The multiscatter stuff was originally from a blog and I just had an llm cross reference a shadertoy from that blog against the remix implementation

might not be 100% fixed but it is much closer

[velvet bear]

There's also another bug with Remix Plus where large objects with alpha textures glitch out and become translucent from certain viewing angles. Lowering the 'Unique Object Search' value fixes it, but this issue never occurs in the vanilla Remix.

[opal rain]

does turning the skybox from physical to normal fix it?

[velvet bear]

Nope. Still bugged.

[opal rain]

odd

i ask that anyone reporting bugs opens issues on github. it makes it a lot easier to track, and i can address them more easily with PRs

i'll look into this when i'm able to, but i'm glad there's some kind of mitigation for it already

i managed to partially fix the decal + volumetric glowing issue at sunset btw

[solar knoll]

I don't think it's from Remix Plus, it also happens in GTA 4 with the rebase that xoxor did.

[opal rain]

i think my next project will be trying to reduce the ghosting of remix's volumetrics

😮‍💨

glowing alphas are fixed

this is how it looked in FNV before

basically alphas were being illuminated by the sky system when they shouldn't be. SSS surfaces should still be lit up (though i don't have any way to test this)

if anyone has a game they can test this in with subsurface scattering configured for foliage, i'd appreciate verification that this works

gonna commit and push this in a few

[hot orchid]

You didn't tell me you made a toon shader too

[heavy cradle]

👀

[opal rain]

greattt

so you have the problem too

[hot orchid]

idk how fix?

[heavy cradle]

-# that wasn't introduced by my stuff was it?

[opal rain]

no

idk wtf could be causing it

@clear sandal had it in roblox too

[heavy cradle]

cloud shadows?

[opal rain]

.

[opal rain]

does turning off the physical skybox fix it

[hot orchid]

yes

no

wait

Can I not have every single shader compile every single time?

[hot orchid]

It does

[heavy cradle]

what was the last commit you were on before you updated?

[hot orchid]

Very weird. The sky brightness is set to 0 and physical atmosphere is turned off

The whole scene is lit up

[hot orchid]

before clouds

The original CR implementation

[heavy cradle]

. _.

that's a lot of commits lol

[hot orchid]

well it should just work regardless

[heavy cradle]

does disabling the clouds fix it?

[hot orchid]

Very weird. The sky brightness is set to 0 and physical atmosphere is turned off

[heavy cradle]

oh

lol

[velvet bear]

Just discovered another bug in remix plus. Does anyone experience similar situations where shaded area are not lit up correctly?

comparison pictures

[hot orchid]

that ain't a bug, bro

That's a fix

[velvet bear]

a fix?

[hot orchid]

There's more than enough ambient light in the scene to illuminate that area

It shouldn't be that dark

[opal rain]

i can't really help debug unless you test on newer commits

[velvet bear]

The second picture is what i expected the scene to be

it just doesn't make sense. The area should not be that dark.

[hot orchid]

SEE

[opal rain]

you're confusing tf out of me

[hot orchid]

elaborate

[opal rain]

what commit is it specifically? it's in the about menu

[opal rain]

try turning off volumetrics

[hot orchid]

It's the latest actions build

like 30 minutes ago

[opal rain]

mm

unfortunately i don't have any time to put into debugging further

[velvet bear]

It has never been enabled in the video. For context, this exact issue actually occurs in vanilla Remix as well, but only when the 'anti-culling object' option is turned on. Since that option has no effect in vanilla VC anyway, I always keep it disabled. However, in Remix Plus, this bug persists regardless of whether the 'anti-culling object' option is on or off.

[opal rain]

is that legacy fog then or something?

[hot orchid]

Hard cutoff

[velvet bear]

Here is how the bug could be triggered in vanilla Remix.

[opal rain]

if you carried over your rtx.conf from an old build, the sky settings had changed some and it might be causing issues

[hot orchid]

removed them manually

[opal rain]

okay. well this seems like an upstream issue that's just somehow getting triggered by something else i tweaked

[velvet bear]

I am not sure. I think it is the fog option in the RTX Volumetrics. legacy fog does not have effect with remix

[opal rain]

okay. and if you turn off clouds but leave the normal sky, does it fix that weird shading issue?

and was the shading issue present with just the default settings, or was it a specific setup that triggered it

[hot orchid]

The game starts with (None/dormant). If I select a preset, the shading issue is gone

But the clouds remain weird

[opal rain]

i see

[opal rain]

it looks like the cloud field is upside down somehow

i've never seen that lol

[hot orchid]

I've messed with the z-up/lhc modes

Works well other than that

love the gi here

[heavy cradle]

like the new set of tonemapping options too?
(:

[hot orchid]

very mucch

[heavy cradle]

nice

[hot orchid]

we love gt7

[heavy cradle]

really thought the gt7 option would be more popular lol

[opal rain]

i think i found the issue for the broken shading

the None preset is very borked and used defaults that no longer function properly

[gilded path]

Weird it didn't render on skybox

It's using distance terrain somehow

Or can the clouds be rendering upside down

[heavy cradle]

Y up I think

in the game setup section

[hot orchid]

Nope

[heavy cradle]

is it not?

[hot orchid]

It is. It simply does not take an effect

Plus, based on the freecam, I know that the controls aren't inverted

[opal rain]

someone else had posted a picture of GTA SA with this and the sky was vertical, in which case Z up would have fixed it

it got deleted i guess

[runic robin]

=

[opal rain]

bugs fixed today:

• decals and volumetrics glowing weirdly at sunset (or just in general tbh)
• None preset for weather led to corrupted graphics (@clear sandal letting you know what you ran into is now fixed)
• something else that i forgot

[opal rain]

i want to rebase to upstream maybe once per month. does that sound reasonable? prevents major bugs

[heavy cradle]

ya

[opal rain]

-# plus i won't go crazy as quickly

[hot orchid]

And the clouds rendering upside down. Obviously.

What is a rebase and how does it improve my life?

[opal rain]

basically taking all of my additions in remix plus, and slapping them on the newest Nvidia version of remix

has a high chance of borking things

[opal rain]

i'm convinced that's a game issue tbh. i've tested ~7 games now with this sky, and others have tested it in a lot of games too, and no one else ran into that

[hot orchid]

So... what do I do?

[opal rain]

i have no idea

[hot orchid]

Great

[opal rain]

sorry

i can't troubleshoot without having the game and stuff, and even if i did, i don't have the time rn

[hot orchid]

Greater

I'll try to figure something out

[clear sandal]

amazing

[gilded path]

https://tenor.com/view/pyramide-gif-3771992637348814338

[heavy cradle]

feel like remix plus might need a more robust color grading solution

what would you guys want / need from that?

stuff like tint and color temp would be pretty nice

[brazen sluice]

Oh its lit up like it’s on the moon

[heavy cradle]

how would you guys feel about me shifting agx from the tonemapping part of the pipeline to the colorgrading part of the pipeline?

technically you are supposed to grade ontop of agx

[opal rain]

i'd be fine with that

[heavy cradle]

sick

I'm probably going to retool the lottes also

should look the same

but I want all the settings like contrast, midgray in / out, exposure all in the color grading section

probably will rename lottes to Hue Preserving Reinhard or something too

[hot orchid]

okay

@opal rain

I want to build the plus runtime

What do I need to do before building and after cloning?

Because my god, the last time I tried, so much shit was broken

[opal rain]

you can tell any LLM to look at the included claude rtx-build skill and run it. it's really easy. or just read the skill file yourself

it's much easier than Nvidia's repo rn. i also have custom build scripts

[hushed comet]

Get github to build it if You had issues with stuff being broken before. Takes a bit longer then local but at least you won't have dumb stuff happen like not being able to assign textures in a capture from Your build, in the toolkit.

[opal rain]

https://www.rxddit.com/r/Damnthatsinteresting/comments/1trb71l/milena_refacho_a_19_yo_student_in_portugal_filmed/

what if this was in the sky system

[hushed comet]

uhh... wait what part the whole sky lighting up from the meteor? I already added showers ontop of the first shooting star system. and the rare chance for them to explode. this wouldn't be too hard to do I don't think.

[hushed comet]

this I think

https://www.reddit.com/r/nextfuckinglevel/comments/1cvtfuw/burning_piece_of_a_comet_spotted_over_portugal/?share_id=TR57LxrdtWaRzhRQkFrhx&utm_content=1&utm_medium=ios_app&utm_name=ioscss&utm_source=share&utm_term=1

actaully I think all I need to do is turn up the sky contrib on them currently...

I also added a constellation system recently.

[opal rain]

rn the shooting stars are behind the clouds. i'd need to modify them to directly intersect with the clouds, or simulate it at least

[hushed comet]

I did add some stuff besides that as well. color variation depending on the shooting stars material make up. fireball roll, moon dimming, radient geometry and more tunable options. game calendar sync for the showers+ random chance per night.

tried a aurora system as well but it looked like trash.

I think i can make these things simulate an impact as well and then spawn some ore at the location in game or something neat.

[carmine lintel]

FSR 3.1 when

[opal rain]

when you PR it and adjust it to conform to the fork's requirements

if something is in high enough demand i can do this myself. it's just not something i like doing

[fading glen]

Is there a way to fix the visible distance layering?

[opal rain]

not as of right now. i need to try to change the way it's sampled to fix it

you can increase the tiling to help, but it will make the clouds smaller

[fading glen]

sadge

seems that the shadow artifacts I get stem from cloudShadowStrength .. it even affects indoor areas for some reason .. might be another binding issue?

[opal rain]

ah shit i never tested indoors with it. that's gonna be a nightmare to resolve

@fading glen are you talking about this issue?

if so, i fixed it in the latest commits a few days ago. squashed branch isn't updated yet though. it was an issue with the none preset for weather. changing to overcast or anything else should fix

[fading glen]

using clear seems to fix it with groundshadow 1 so will pull your fix

[opal rain]

well

that slider was an attempt to get cloud shadows affecting landscapes and such. so when there are overhead clouds, it will cast a shadow

however, i didn't think to test it indoors stupidly. so it's casting a shadow in your interior

that's also why clear fixes it

[fading glen]

ah true

[opal rain]

for now i suppose set the slider to 0

[fading glen]

yea will have to do so for each preset since I'm going to use presets with blending

did add support for setting an absolute value for blending instead of relying on blend duration

[opal rain]

if you have feedback on that system btw, i'd love to hear it. no one has implemented it yet so i'm sure there are gonna be some rough patches or things to improve

i'll work on a fix for the layer issue + shadows when i'm settled. we're moving rn and can't dedicate time to fixing sadly

[fading glen]

no worries! I hope nothing gets lost or damaged in transit and that you settle in well 🙌

[hushed comet]

GTA 4 is a whole different animal then what I'm working on but if there's a way to detect if You're somehow in a interior You should be able to just shut the system down when the player enters a interior. it's what I'm doing to solve some issues like this in interiors.

[hushed comet]

How does vanilla gta 4 handle those interiors anyways? I'd assume they kill the weather and gi when a player enters those anyways right? might be able to piggy back the same trigger maybe to shut off the entire sky system wholesale when entering a safehouse and back on for exit.

[fading glen]

correct - there is no gi tho

[fading glen]

moon0.elevation0

[opal rain]

got a fix for the layer issue

pushing as experimental fix

[opal rain]

🔥 omg that's amazing

[fading glen]

still some stuff to iron out but works pretty good already
running into an issue where remix is blocking some vars like transmission because they are blocked by user.conf for some reason

[opal rain]

🙏 for any issues you find, please open issues on github so i can fix them later. so exciting to see it implemented in a project

[solar knoll]

What is the performance difference?

[fading glen]

No idea 🤷

[hushed comet]

Yeah I suspect the approach You'll want to use then is to kill it all when entering a interior then. Should be simple enough if there's any game data available to trigger it . I had to do this with Morrowind as it was doing weird stuff in interiors as well.

[fading glen]

Yea I'm already handling the rain particle effect that way and could do the same here but I'm just going to completely disable ground shadows for now

[hushed comet]

Yeah You can pick and choose what to disable for sure. The GI and stuff might be useful to keep if there's a window I guess.

[gilded path]

asi loader?

[gilded path]

will do if i get to yours. i havent touched it hardly cause it was contantly updated

[fading glen]

?

its used to load the comp mod yea

[gilded path]

ah ok

i was wondering what the interface was

[fading glen]

oh the trainer you mean? Thats liberty legacy trainer

[gilded path]

yea

[hushed comet]

Just tested this. 100% fixes that on My end.

[opal rain]

no adverse effects?

[hushed comet]

Don't seem to be nope

[fading glen]

issue #1 - one can't open issues on your fork 😄

issue #2 - fogSunVisibilityGain is not exposed in imgui even tho your commit msg says something about an exposed knob

[opal rain]

must have gotten borked when i moved it from my FNV testing branch to main

[opal rain]

lol fixed that one at least

[fading glen]

Mhh can't seem to get the "sun" to affect volumetrics much even with the new setting set to 50. I need to set transmission distance to 1m to start seeing fog 😂

1m transmittance on atmos vs 1m with actual distant light

oh I think the rtxdi submodule was not up to date

[fading glen]

okay updating the submodule changed it but the value is still not functioning as I expect it to. It increases fog for all lights but the "sun" 😄

[hot orchid]

For me, it's the particles.

(I might be stupid and might have left particle quality to low)

[fading glen]

mhh no mine are black too

[hot orchid]

welp

That's an issuue

[fading glen]

not sure if that is also caused by particles (nah I think this is something else)

(rain / gust particles are floating around in the scene)

[opal rain]

the RTXDI submodule changes are essentially hacks right now to get the sun to interact, but i'm not sure why it's failing to here. same for those particles. the sun was causing major visual issues, they would glow way too brightly even with the multiplier hack disabled

this is at the top of my list for stuff to fix after moving. if anyone else wants to take a look i'd be very grateful

i don't like hacky fixes

[fading glen]

Mhh having an actual but very dimm distant light with 10x volumetric scale helps. Are you creating an actual distant light in the atmos system because if so, I most likely nuked it by reverting most api / light related changes

[swift jackal]

Liberty Hill

🌁

[opal rain]

iirc i am, but i can't look at the code rn to verify

[grim dagger]

no, it uses a custom light disk system

it's supposed to be sampled by RTXDI for proper illumination of particles, volumetrics, etc but im not sure if sparkle's fork broke something

[fading glen]

Mhh building on your commit does not seem to make any difference

[opal rain]

try his RTXDI submodule. i had intentionally disabled particle illumination on mine as a debug test and forgot to revert it (...sorry)

https://github.com/sambow23/RTXDI

[fading glen]

Yea I built that locally and it doesnt make a difference.
After adding an actual distant light

[opal rain]

i guess i'll have to change the approach the sun uses then

that explains a lot of the issues tbh lmao

[fading glen]

so that custom disk sun is not contributing to volumetrics at all

[hot orchid]

It's hopeless

[opal rain]

it WAS though. and i'm not sure what changed

like i have screenshots of it working

maybe i was sampling it differently on the cloud side

my brain is fried rn

[fading glen]

can you enable fallback light to see if that also illuminates your particles?

[opal rain]

from @heavy cradle

[grim dagger]

were the submodules reinitialized when switching to my RTXDI fork?

[hot orchid]

It does, I know that

[fading glen]

I checked out your commit on the submodule

[hot orchid]

Any real lights affect particles normally

[grim dagger]

my poor atmos sky 🥀

[fading glen]

Mh okay. Do you see volumetric fog produced by the sun itself with no actual distant light active? Just want to make sure it's not something on my end due to rebasing onto latest main

[opal rain]

hey

[opal rain]

also fwiw i never got this working even on your version. it was something i had to re-implement (which apparently broke again)

changing it to a real direct light source seems to be the best approach, so i'm probably just gonna do that

[grim dagger]

huh? it's working on my remix-plus'based fork just fine

[opal rain]

i meant your original sky version before it was ported to remix plus

but that's interesting

[fading glen]

where exactly is that disk based sun code located?

[opal rain]

😔 i have to go, sorry. hopefully CR can help

[grim dagger]

https://github.com/sambow23/dxvk-remix-gmod/blob/72f6484ded932dada783a8843eb9fee9679d6c48/src/dxvk/shaders/rtx/pass/atmosphere/atmosphere_common.slangh#L584-L639

[fading glen]

Mhh so what is that setting supposed to do? And am I supposed to see an actual disk or just the sun's influence on air and dust particles in the atmosphere?

Changing it makes no difference whatsoever

[grim dagger]

I believe it was for the actual sun disk size but this may have become broken since it was added. My BetaRT fork has an actual volumetric influence adjustment that i've been using
https://github.com/sambow23/dxvk-remix-gmod/blob/b173-remixplus/src/dxvk/rtx_render/rtx_fork_atmosphere.cpp#L589

[fading glen]

mhh sun influence seems to work fine on the 1.4.2 release so not sure what went wrong

[heavy cradle]

think I just got a working sharc implementation working in remix plus

jumped from 89 fps to 100 fps on the second mission in halo

restir gi vs sharc

[grim dagger]

any visual bugs?

[heavy cradle]

I haven't seen any

[grim dagger]

👀

this would be huge for BetaRT

[heavy cradle]

(:

I've only played around a few in minutes in Halo but I think it's just working lol

[opal rain]

[heavy cradle]

now everybody who wants sharc has to use remix plus

[grim dagger]

😨

[runic robin]

https://tenor.com/view/invalidates-cats-cat-meme-you-are-wrong-this-cat-completely-invalidates-everything-you-say-gif-14938346515147172709

[grim dagger]

incredible

[runic robin]

[heavy cradle]

it was done with all the remix plus touchpoint stuff so it's not something I can open a pr on the main repo for without a refactor

gonna eat and then do some more testing

[grim dagger]

I have to ask, did we really have to do it that way? I don't really like the "exclusivity" idea of adding features that cant be easily cherry-picked to normal remix

[heavy cradle]

No idea

I was joking about what I said earlier

If it actually works I'd happily work with the nvidia folks to get it into main

[opal rain]

i structured it this way because it really does help with stability when rebasing. it took maybe half an hour of troubleshooting after rebasing last time, and it was after that massive CPU/GPU optimization commit too

this is an unfortunate side effect of it

when i made remix plus, it was meant for experimental features that Nvidia would likely never accept

e.g. our API tweaks, the cloud system (due to the perf hit), and tweaks that likely go against their philosophy for the main repo

[heavy cradle]

that's actually really smart lol

sectioning off the changes so it's easier to rebase

[opal rain]

it's paid off and i'm really happy with it. i am sad that it's harder to PR things, but i don't think it should be changed just because of that

anything i've wanted to PR from plus, i've cherrypicked onto a new branch based on their main, then integrated the feature per their standards. then i opened the PR from that branch

[grim dagger]

fair ig

[heavy cradle]

looks like sharc is working in hl2 rtx also

restir gi vs sharc

[heavy cradle]

played around a bit more and it seems like it just works

also might be easier to pr into main then I thought

[heavy cradle]

@opal rain @grim dagger @carmine lintel here is the sharc commit https://github.com/RemixProjGroup/dxvk-remix/commit/81a38e366c7e65b8d6460c87f46b69e467330142

[carmine lintel]

better performance as expected

[carmine lintel]

will merge into P2 RTX as soon as possible

I'm assuming this is built on latest Remix?

[runic robin]

How about you merge me into p2 rtx as soon as possible

[carmine lintel]

@heavy cradle is actually on the team

[runic robin]

[heavy cradle]

it's built on remix plus

[carmine lintel]

hoping that doesn't conflict with Portal 2's runtime much

I gotta rebase anyway to latest

good thing I updated FSR

[heavy cradle]

I'm going to talk to the nvidia folks tomorrow about getting it merged into main

[runic robin]

how about you rebase ME into
okay il stop

[carmine lintel]

you mind if I merge this into our Artemis fork?

[heavy cradle]

as long as you test it first (I did some testing and it seems to work fine but you never know) and give me credit I do not mind

[carmine lintel]

Our fork is based on main Remix, so we'll see how that goes, lol

[heavy cradle]

lol

[hushed comet]

https://tenor.com/view/jacksparrow-jack-sparrow-captainjacksparrow-captainjack-captain-jack-gif-22081901

[heavy cradle]

wonder if markov chain path guiding would be easier to implement now since the hash grid stuff is already implemented because of sharc 🤔

[carmine lintel]

they're pretty similar from what I remember, though SHARC being Voxel based

are we able to adjust the Voxel settings in your implementation?

[heavy cradle]

I don't have anything exposed for that no

also just realized the imgui is a little funky lol

[carmine lintel]

cherry picked it, gonna try building it and see what goes wrong

[heavy cradle]

-# was so excited that it was working that I forgot to check that

[grim dagger]

[carmine lintel]

very important for optimization btw

[heavy cradle]

I think we should treat it as experimental until we've all done more testing

[carmine lintel]

that's the point of Artemis, lol
it's for experimental features

[heavy cradle]

ah lol

[hushed comet]

https://tenor.com/view/shipit-gif-4770652

[heavy cradle]

only took me 6 claude sessions and a few hours to implement

[carmine lintel]

better than FSR, that took 2 months to implement

[heavy cradle]

._ .

[runic robin]

Now lets see it in main remix

Xess but no fsr is

[carmine lintel]

maybe if NVIDIA, you know, merges it

[runic robin]

They better

[carmine lintel]

SHARC in Artemis is building, wasn't that hard to adapt

next step would be getting it into P2 RTX

[runic robin]

then the next step after that would be getting ME into P2 RTX
Its just so easy im sorry

[carmine lintel]

what GPU do you have

[runic robin]

5070 😎

Not TI

[carmine lintel]

sure you can join the beta testing
I love performance data

[runic robin]

Ill give you ALL my data INCLUDING SSN if thats what it takes

Ill give you my mothers maiden name, place of birth, latest adress, whatever you want

[opal rain]

great work hmm

[heavy cradle]

the dark souls lighting engine guy said it was pretty straight forward to implement so I decided to just do it

[carmine lintel]

love that guy

he said it was important for performance

[heavy cradle]

honestly wasn't expecting a performance boost at all lol

just thought it would look better

[carmine lintel]

well that's the point of SHARC, lol

it's basically a replacement for importance sampling

[grim dagger]

can i have your credit and debit card numbers

[runic robin]

only if you join vc (U wont no balls) (because they turned into dust because youre so old)

👴

[grim dagger]

(haha this joke is so funny i cannot wait to hear it 10K more times )

[runic robin]

👴 👴 👴 👴 👴 I cant wait either

Damn it i shouldve said "dont worry about it you wont have to hear it 10k more times because youre so old your hearing is so bad" it was staring at me in the face and I didnt do it

[grim dagger]

🥱

[carmine lintel]

tried out SHARC in HL2 RTX
and lmao, because I'm CPU bottlenecked, it doesn't improve my fps, it just lowers my GPU usage

[heavy cradle]

lmaooo

[carmine lintel]

Portal RTX doesn't work for some reason

gonna try another Steam game (since we have access to private ones, lol)

ok so RTCW works

weird

SHARC doesn't seem to just like Portal RTX

[fading glen]

  // Fork (2026-05-26): sun-elevation gate. Volumetric NEE fires for any
  // sun above the -15deg twilight cutoff, but the cache is filled by
  // per-froxel visibility rays from positions in the air -- froxels see
  // the sun over local terrain even when ground surfaces are in shadow.
  // Gate the contribution by sun altitude so the cache fades smoothly
  // as the sun approaches/crosses the geodetic horizon, killing the
  // bright fog/decals when sun is visually below terrain. This is a
  // per-froxel visibility approximation, not an artistic gain.
  const float sunUpAxis = (isZUp ? args.sunDirection.z : args.sunDirection.y);
  const float sunElevationGate = smoothstep(0.0f, 0.3f, sunUpAxis);
  result.radiance = args.sunIlluminance * transmittance * phase * mieModulation * sunVisibility * args.sunRayBrightness * sunElevationGate;```

This kills sun volumetric contribution for me

getting rid of the gate

[hot orchid]

And particles?

[fading glen]

work it worked on the commit before the gate introduction but the gate is not the issue when it comes to particles it seems

[fading glen]

@opal rain so the actual issue is that it uses sunDirection.z when zUp is true, which is incorrect. It should always use y.
Also, the gate kills volumetric contributions below a sun angle of 17deg. Not sure if that was intentional. I'm using 0.087f instead of 0.3 which smoothly reduces contribution from 5 to 0 degrees

[fading glen]

Uh as for particles - one change in rtxdi:

  // Set to a small value (~0.05) to bring back a little atmospheric
  // tint on smoke/dust; the dial is intact.
  const float kConsumerMultiplier = 0.0f;

 ....

return result * kConsumerMultiplier * edgeFalloff;

result will always be 0 .. thats why particles are black

[opal rain]

🙏

the gate kills volumetric contributions below a sun angle of 17deg
it was intended because in quite a few games, volumetrics kept being activated as if the sun were directly illuminating it. this was despite the sun being well below the horizon

your value makes a lot more sense

[hot orchid]

German engineering at its finest.

[fading glen]

created issues for everything on gh

[opal rain]

🙏 thank you very much xor

[opal rain]

🐻 🦈

[heavy cradle]

(:

[fading glen]

also found a way to only change sun volumetric influence instead of scaling it globally:

rtxdi\rtxdi-sdk\include\volumetrics\rtx\algorithm\volume_integrator.slangh around line 290:

// Sun radiance already includes phase function and proper scaling
// Just apply visibility attenuation (no PDF-based throughput like point lights)
vec3 sunRadiance = sunSample.radiance * vec3(visibility.attenuation) * volumeArgs.atmosphereSunVolumetricRadianceScale;

[fading glen]

now onto full cloud coverage illuminating the ground at night 😂

[opal rain]

i def never had that. wtf

[gilded path]

Ground fog when

[opal rain]

OH right. this is likely related to your star or moon settings for cloud illumination. setting either of them too high will illuminate the clouds, which tends to illuminate the ground too much

the star brightness default is a bit high, i saw it do things similar to this. but this should probably be fixed properly somehow. it's a pretty complex system unfortunately

[fading glen]

Mh tried various star / sky / moon settings but it does not seem to come from stars nor the moon

the only setting affecting it is distant haze

[gilded path]

Sparkles I'm booting up my old project soonish with remix plus when home https://discord.com/channels/1028444667789967381/1097339713062441031

[opal rain]

🔥

[opal rain]

how strange

[fading glen]

fix for clouds illuminating the ground at night https://github.com/xoxor4d/dxvk-remix/commit/84ebf83fda340665a915753b6140d92c40d35262

[gilded path]

well i didnt get far

[16:48:14.461] warn: D3D9Texture2D::QueryInterface: Unknown interface query
[16:48:14.461] warn: 794950f2-adfc-458a-905e-10a10b0b503b
[16:48:14.461] warn: Sky may not appear correct: sky intermediate format has been forced to HDR while the original sky is LDR and no HDR sky replacement has been found!
[16:48:14.498] warn: [rtx-interleaver] Unsupported color0 buffer format (109), skipping color0
[16:48:14.553] warn: [RTX Terrain Baker] Terrain render target is of sRGB format VK_FORMAT_R16G16B16A16_SFLOAT. Instead, it is expected to be of linear format.
[16:48:15.796] info: [RTX-Compatibility-Info] Found a draw call to a non-primary, non-raytraced render target. Falling back to rasterization
[16:48:15.969] info: RenderPass GBuffer Raytrace Mode: Ray Query (CS)
[16:48:15.969] info: RenderPass Integrate Direct Raytrace Mode: Ray Query (CS)
[16:48:15.969] info: RenderPass Integrate Indirect Raytrace Mode: Ray Query (CS)
[16:48:15.987] info: XeSS: Activated successfully
[16:48:33.121] info: [RTX] Integrate Indirect Mode: ReSTIR GI - activated
[16:48:46.067] err: DxvkSubmissionQueue: Command submission failed: VK_ERROR_DEVICE_LOST

[opal rain]

i'm SO happy to see the clouds integrated into a project. i spent a month straight on them

thank you for sharing (and for the fixes)

[opal rain]

driver crash

[gilded path]

yea game froze mid load

select new game and bye bye

even tried loading a non modded save outside but nope

[clear sandal]

the clouds system is gonna look so fire in psychonauts 2

like here

(not remix but)

[gilded path]

dang thats cool

i never played psychonauts

got gpt with codex but could only do 20 a month

trying to not use all usage this time

[opal rain]

i'm trying to figure out a good name for the sky system

it's much more than the original sky now

atmos + nubis sky system isn't very catchy

Numos 😆

[heavy cradle]

cirrus

[opal rain]

i do want it to be a separate name from Atmos entirely because it's so much different now

hmmm

[opal rain]

that one's not bad

[opal rain]

i'm going to modify the screenshot function to save as PNG instead of DDS

[opal rain]

thoughts on binding a hotkey for it?

[heavy cradle]

would be nice

[clear sandal]

What we need is an rtx on off automatic slider like the videos /j

[heavy cradle]

cleaned up some stuff with the sharc and pushed to the bear-sharc branch

[wide kelp]

what status do you think sharc is in

[heavy cradle]

it works but it still needs to be cleaned up more

can't get the debug views to work for whatever reason

[wide kelp]

hope it being fully vibe coded doesn't mean performance/efficiency will get hampered

[heavy cradle]

I mean it runs better than the restir gi and the nrc 🤷‍♂️

by a non insignificant amount

[wide kelp]

but likeeeeeee maybeeeee there's a little moreeee if we can tryyyy

https://tenor.com/view/greedy-pot-yu-gi-oh-yugioh-gif-1156091889875709808

[heavy cradle]

sharc vs restir gi

getting 16 fps higher lol

[wide kelp]

how is it compared to importance sampled?

[carmine lintel]

Maybe look at the SDK for help?

[heavy cradle]

probs

[wide kelp]

you didn’t look at the sdk while making this implementation?

[heavy cradle]

I did

[heavy cradle]

got the debug views to display stuff finally

[heavy cradle]

now the debug views actually work I think

[swift jackal]

What does this hash grid debug view depict exactly?

[heavy cradle]

notice how the squares get larger the further away they are from the camera?

[wide kelp]

LETS GO

[wide kelp]

@heavy cradle do you plan on sending a pull request for sharc to the main remix branch?

[heavy cradle]

if nvidia wants it

[wide kelp]

pleeeeease nvidia can you want it pleeeeeease

[carmine lintel]

It’s gonna be weird because NVIDIA had their own implementation, lol

[wide kelp]

that they be gatekeepin 💔

also doesn't minecraft rtx have its own infinite bounce solution like sharc or am i just crazy

[carmine lintel]

You’re crazy and SHaRC isn’t an infinite bounce solution?

[wide kelp]

i heard someone say minecraft rtx had fake infinite bounce

is that

[carmine lintel]

I can’t tell what that is if the description is cut off

[wide kelp]

Do you not see the spherical harmonics

[brazen sluice]

They know how open source projects work, the question is will they roll it into the main version.

[carmine lintel]

Judging off the old article, it seemed pretty complete
And it’s a part of the NRC Framework
So as to why it didn’t come with NRC, who knows
And none of them are allowed to confirm if it’s still in progress or coming

I do know it was said they don’t want to maintain a lot of indirect methods so it could be that

But SHaRC is such a must have
It provides Radiance Caching to all GPUs

[brazen sluice]

Then they will probably understand if presented that way. Or they will be put into a position to respond

[wide kelp]

i dont think thats a good reason cause sharc is too good to pass up on

[carmine lintel]

Well they probably didn’t see a point in supporting two radiance caches, especially you know, Remix being NVIDIA based

NRC probably mattered more to them

[wide kelp]

Shame cause i dont really like nrc

Main two issues is entering a dark room from a bright room causes the dark room to be bright for a few seconds

and sometimes nrc just panics and changes the colour of the gi

minor issue is indirect lighting updates being delayed

[carmine lintel]

Sounds like a broken implementation

NRC is supposed to be really good
Especially being AI based

[wide kelp]

ya idk why it does that in remix

[carmine lintel]

If anything, SHaRC is supposed to be worse, considering its Spatial Hashing and has no AI training

So if NRC ends up worse then SHaRC then it’s something wrong with the implementation

[wide kelp]

using sharc in minecraft radiant has no such issues

[carmine lintel]

Then the problem is Remix’s NRC implementation

[wide kelp]

Ya, only issue that comes from sharc in radiant is you can visibly see the grid in multibounce reflections

[wide kelp]

also ya smth is really wrong with nrc in remix

ill try record my findings and create a github error report

[grim dagger]

hi plus remix

[carmine lintel]

https://tenor.com/view/whizzy-imposterfox-smash-anime-smash-anime-girl-gif-21682300

[grim dagger]

[heavy cradle]

NRC and SHaRC look very similar side by side

so I think that's why the just opted for the NRC

ShaRC vs NRC

[wide kelp]

i wanna see those delicious fps numbers

[wide kelp]

(except sharc is lighter and is supported on all gpus)

[heavy cradle]

I didn't show the fps numbers because I still need to optimize the implementation