Warning: "Material Circle doesn't have _Stencil property UnityEngine.Canvas:SendWillRenderCanvases ()"

[adrian-miasik]

Waiting for Unity -> Proper UI support for ShaderGraph

As the title says, there is a warning in our project that is associated with our circle ShaderGraph material. The warning follows:

Material Circle doesn't have _Stencil property
UnityEngine.Canvas:SendWillRenderCanvases ()

We are missing the standard stencil properties in our ShaderGraph Circle shader. These are typically found in Unity's built in UI HLSL shaders and looks like this:

_StencilComp ("Stencil Comparison", Float) = 8
_Stencil ("Stencil ID", Float) = 0
_StencilOp ("Stencil Operation", Float) = 0
_StencilWriteMask ("Stencil Write Mask", Float) = 255
_StencilReadMask ("Stencil Read Mask", Float) = 255

_ColorMask ("Color Mask", Float) = 15

This warning can be fixed/suppressed by converting the Circle ShaderGraph shader to HLSL and adding the above stencil properties to the shader. Or alternatively, we can wait for Unity to add proper ShaderGraph support for UI based shaders as they road-mapped here: https://portal.productboard.com/8ufdwj59ehtmsvxenjumxo82/c/50-ui-integration-with-shader-graph?utm_medium=social&utm_source=portal_share

Think I'm going to wait for Unity to support UI ShaderGraph shaders.
Seems like it'll be coming in Unity version 2023.2 - beta 16.

[adrian-miasik]

Marking issue as blocked until we update the project to the appropriate version, though if someone would like to convert the ShaderGraph shader to HLSL and use the stencil property, I'm open to implementing that solution to circumvent the 'blocker'.