#version 140 uniform isamplerBuffer sbuf; layout(std140) uniform blockName { int anonMem; }; void main() { int id = gl_InstanceID; id += anonMem; id += texelFetch(sbuf, 8).w; gl_ClipVertex; // could be ERROR, but compiling under compatibility profile gl_Color; // could be ERROR, but compiling under compatibility profile gl_LightSource[0]; // could be ERROR, but compiling under compatibility profile gl_DepthRange.far; gl_TexCoord; // could be ERROR, but compiling under compatibility profile gl_FogFragCoord; // could be ERROR, but compiling under compatibility profile gl_FrontColor; // could be ERROR, but compiling under compatibility profile }