[GLSL] `--flatten-ubo` with preserving names

[vladislavbelov]

Hi! Is it possible to flatten UBO with preserving member names? Or it's too complicated to support?

GLSL (source) > SPIRV:

#version 450

layout (location = 0) uniform Constants
{
    vec4 color;
    // ...
};

layout (location = 0) out vec4 outColor;

void main()
{
    outColor = color;
}

SPIRV > GLSL (result):

#version 110

// Instead of uniform vec4 Constants[...];
uniform vec4 color;
// uniform ...

void main()
{
    gl_FragColor = color; // instead of Constants[0];
}

[HansKristian-Work]

In GLSL, the block name is the name you use to link against the outside world, not the member name. You can always use the reflection API to rename things as desired before cross-compiling.

[vladislavbelov]

In GLSL, the block name is the name you use to link against the outside world, not the member name.

It's true only for GL3+. Currently I support ARB (Cg) and GLSL (110) shaders, so my abstract GAPI works with uniform variables not uniform structs/buffers.

You can always use the reflection API to rename things as desired before cross-compiling.

I think it works only for the block name in that case, no?