CODEWITHSUNDEEP
openglglsl
Briana
Briana

Reputation: 3

GLSL 400 samplerCube binding

My partner and I are working on an OpenGL project that includes a skybox. The skybox works fine on his computer (which has GLSL version 4.5) and everything BUT the skybox works on mine (GLSL 4.0). The compiler complains about a syntax error in this line:

layout(binding=0) uniform samplerCube currTexture;

and the impression I've gotten is that this syntax is not supported by versions of GLSL earlier than 4.2, is this correct? If so, how do I rewrite this line to be compatible with GLSL 4.0? I keep either seeing repeats of how to do this using the newest version, or much longer pieces of code that I am not sure I fully understand / don't know if it's even doing the same thing.

Upvotes: 0

Views: 707

Answers (1)

derhass
derhass

Reputation: 45332

I've gotten is that this syntax is not supported by versions of GLSL earlier than 4.2, is this correct?

Yes. layout(binding=...) was intruduced in the GL_ARB_shading_language_420pack extension and is core since GL 4.2.

If so, how do I rewrite this line to be compatible with GLSL 4.0?

You simply omit the layout(binding) qualifier. It is only a shortcut for having to query the uniform location and setting the value via glUniform1i() on the client side. However, uniforms are initialized to 0 anyways, so in your case, this will just work as before.

Upvotes: 1

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