3/12/2024 0 Comments Vec3 Sample PackSo the way to separate vertex and fragment program parts in GLSL snippet is to surround them with #ifdef VERTEX. When Unity loads the GLSL shader, it loads the source once for the vertex program, with the VERTEX preprocessor define, and once more for the fragment program, with the FRAGMENT preprocessor define. In GLSL, all shader function entry points have to be called main(). GLSL program snippets are written between GLSLPROGRAM and ENDGLSL keywords. The use of raw GLSL is only recommended for testing, or for supporting projects on platforms that use GLSL. Note: This is not recommended or needed as part of a normal workflow Unity cross-compiles your HLSL into optimized GLSL when needed. More info See in Glossary programs in Unity. As well as writing HLSL shader programs, you can also write raw OpenGL Shading Language (GLSL) shader A program that runs on the GPU.
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