Camera space canvas not showing with an RT cam

[summer shard]

https://www.youtube.com/watch?v=WKTZgf7ZDGs&list=WL&index=13
I'm using this tutorial to create a really cool effect, but i want to render my UI like that too, so Im thinking using a camera to see the UI canvas and then sending in through the raw image so making it filtered like that, but it doesnt work

[shut lantern]

If you set your Canvas to Screen Space - Camera and specify your RT camera as its render camera, then it should work

I'd like to mention that there's a new likely better way to do pixelation
In your URP asset you can decrease Render Scale with Nearest-Neighbor as the upscaling filter to get the same effect
It's more performant because it skips the need to render the RT texture as a raw image
And it's easier as it doesn't need setup and the render scale can be changed on the fly without requiring any recalculation or asset swapping on your part

That method also requires a screen space camera canvas to work with UI, and post processing should be enabled on the camera

[summer shard]

Thanks, but it feels really noisy compared to the prev one, any tips?

the 2nd one is before and the 1st one is after

[summer shard]

Why does it break when i drag it in? I try to drag in my cam, the canvas moves and when i launch i dont see nothing

[shut lantern]

To be more precise the canvas that has your UI should be in camera space
The canvas that renders your raw image should be overlay, unchanged

[shut lantern]

Make sure you're not mixing the two methods
If you change render scale, you don't need the raw image or the RT camera at all
Camera AA and urp asset AA settings make a big difference to the appearance of the image particularly when using decreased render scale
So I suggest be mindful how you mix different AA methods
They generally should reduce noisiness but may conceal other problems
In this case I think there's something off with your ground materials or textures

As there's some moiré patterns visible in both examples

It'd help to see the material properties and texture import settings for the ground

[summer shard]

I didnt, but i think, i'd like to stay with the canvas, cause I really do find the effect just perfect.

[summer shard]

I do that, but the ui doesnt show for some reason

This is my UI canvas

[shut lantern]

Plane distance needs to be lowered, as that's how far from the camera the UI will be rendered
I'd try 1, or if that seems to clip to nearby walls, then 0.1 or 0.05

[summer shard]

I set it at 0.3 and I still cant see it for some reason

Yea, 2 doesnt show anything either, I dont know why

[shut lantern]

Make sure UI is not excluded from your RT camera's culling layer
Overlay canvases aren't affected by culling layers but camera space canvases are

[summer shard]

It isnt excluded, culling mask is everything

[summer shard]

If it helps, this is my main camera

[shut lantern]

Your near clipping plane is 0.3
If the camera space UI is at 0.3 it may be just barely excluded by clipping

You should be able to focus the camera space UI in scene view and zoom into it to visually confirm it is in front of the camera
If that reveals no issues I'd do a quick test with a new camera and a new camera space canvas, perhaps in a new scene, to confirm you can get it working

Doing that tends to reveal whether the error is in the setup of the current scene and components, or the steps you are trying to set up the camera space UI

[summer shard]

It is in front, so should i just try to use a new UI camera for that at first?

[shut lantern]

I don't mean to add another camera into the mix
But to make a basic camera and a basic camera space canvas just as a separate test

[summer shard]

Okay, i will

[shut lantern]

If the simple test still doesn't work, that strongly indicates there's a human error in the process and it'll be simpler to find the problem
If the test succeeds, that means something in the setup of your player character is preventing it from working

[summer shard]

Test succeeds, so that's good

[shut lantern]

A step forward
Earlier I set a canvas to camera space on an RT camera and seemed to have no issues so I'm pretty much out of ideas

[summer shard]

Huh

You think my camera is set up wrong?

I have 2 cameras, a main and a weapons camera, weapons camera is an overlay with higher priority with only weapons culling mask and main cam is just a main cam

[shut lantern]

I don't know of a reason why that'd be a problem but I'd try without the overlay camera anyway

[summer shard]

Nah yea nah, it doesnt work

[shut lantern]

Since you have the test setup that works, another way to try to solve it is now implement the RT texture, raw image canvas and overlay weapon camera into it

Could catch exactly at which step it breaks
Or maybe it won't

[summer shard]

Wait, what do you mean?

[shut lantern]

You now have a test setup with a camera and a camera space UI that works, if I understand correctly
But it doesn't have the setup for pixelation or for your viewmodel overlay camera
So instead of trying to make the camera space UI work with your initial setup, you have the option to implement the pixelation and viewmodel for the test camera

If that process fails, you'll know exactly when
If it succeeds, you'll have what you needed originally

[summer shard]

Ohhhh smart

Yeah no, it fails

I dont know if its about having 2 canvases

[shut lantern]

Having 2 canvases is the way to go
The overlay canvas should be able to display the raw image even if there are "no cameras rendering"

[summer shard]

Huh, I have no idea why it wont work then

It might have to do something with the texture

maybe

[shut lantern]

During play mode you can select the RT texture in Project to view it in Inspector
The preview will show what's drawn on the texture even if you don't have anything drawn on the Game window

[shut lantern]

Also like that in Play mode?

[summer shard]

Its the 1st one here

[shut lantern]

I mean go in Play mode, then view the RT texture in inspector

RT textures don't always update unless the game is running

[summer shard]

Oh yeah yeah thats what it shows

[summer shard]

this

[shut lantern]

I see
That implies the RT camera isn't working regardless of anything to do with the canvases

[summer shard]

Huh, i reckon that helps a bit

[summer shard]

Yeah no yeah, i've tried everything this sucks

[summer shard]

Camera space canvas not showing with an RT cam

[summer shard]

HEYY!! I FIXED IT

I DID IT