Scene depth texture texel size in shadergraph / URP?

Unity Engine
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Hi !
For my URP project, I need to access the texel size of the camera’s depth texture in shadergraph.

Given access to the textures themselves, using the “Texture size” node would seem to be a straightforward solution.

However, since both the scene Depth and Color textures are hidden behind nodes that handle the sampling internally, and output only the data itself… I’m not sure how I should go about accessing the information I need.

Any pointer would be greatly appreciated !

image
image890×445 20.8 KB

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Monday morning bump :slight_smile:
Has no one had any issue with distorted refractions in URP / Shadergraph ? I’ve been trying to adjust distorted UVs by aligning texel samples the way Jasper Flick describes in section 3.3 of his excellent article about water shaders, Looking Through Water
This was easy to achieve using Amplify Shader Editor - not so much with Shadergraph.

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Hi, to get the scene color/depth texel size, you can use a custom function node.

First you need to declare a global vector4 property named _TextureReferenceName_TexelSize:

Declare Property
Declare Property1500×690 60.7 KB

Then the custom function node:

Scene Depth Texel Size
Scene Depth Texel Size1500×692 78.2 KB

Width = _CameraDepthTexture_TexelSize.z;

Height = _CameraDepthTexture_TexelSize.w;

OneOverWidth = _CameraDepthTexture_TexelSize.x;

OneOverHeight = _CameraDepthTexture_TexelSize.y;

For scene color, the texture reference name is _CameraOpaqueTexture.

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Oooh lovely, thank you so much !

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