ComputeBuffers in OpenGLES 3.1 Shader

Unity Engine
1

Hi everyone,

I’m curious about something. I’m using structured buffers to send data in a vert/frag shader wrapped in a DX11 api check.

With the new experimental OpenGL stuff I was hoping that those might “just work” like compute shaders. This is sadly not the case.

Has anyone else tried this? From what I understand about OpenGL(which isn’t a lot), there isn’t an exact cross over for DX StructuredBuffers, but is there something else that Unity’s compute buffers will work with?

2

Update!

It turns out using surface shaders are what’s failing, not the structured buffer conversion:

This works just fine:

            CGPROGRAM
            #include "UnityCG.cginc"
            #pragma vertex vert
            #pragma fragment frag
            #pragma target 5.0

            StructuredBuffer<float4> Buffer_A;

This does not:

CGPROGRAM

       
        #include "UnityCG.cginc"
       
        #pragma surface surf StandardSpecular vertex:vert
        #pragma target 5.0

        StructuredBuffer<float4> Buffer_A;

it fails at the line StructuredBuffer with “Syntax Error”