Is _TexelSize suffix also available in Unity's compute shader?-CodePudding

According to the Unity documentation, in shader code we can get the size of a texture with variables named in {TextureName}_TexelSize. I tried but failed when writing compute shader. So I wonder if it's because the _TexelSize suffix doesn't work in compute shader?

What I've tried is as follows.

I defined the following two variables in my compute shader

Texture<float4> _MyTexture;
float4 _MyTexture_TexelSize;

and set _MyTexture in C# code

ComputeShader myComputeShader;
Texture2D myTexture;
// ...
myComputeShader = myComputeShader.SetTexture(0, "_MyTexture", myTexture);

I've also tried to change the type of _MyTexture to sample2D but it doesn't work.

My goal is to get the size of _MyTexture with _MyTexture_TexelSize in shader code without setting it in C# code.

CodePudding user response：

Set the value manually:

myComputeShader.SetVector("_MyTexture_TexelSize", new Vector4(1.0f / myTexture.width, 1.0f / myTexture.height, myTexture.width, myTexture.height));