Rapid Prototyping of Graphics Shaders in Modern C++
summary
Claims a C++ library lets you compile GLSL as C++ so shader code runs on the CPU with full debugging and quick prototyping. Implementation uses templated vectors/matrices, union-backed members plus a swizzle proxy + fold expressions to emit minimal assembly in release; implicit-conversion decay and promotion traits fix template deduction for functions like dot/max. Results: trivial shaders hit ~500 FPS on GCC/phone, complex procedural planet needs a powerful GPU for 60 FPS while the CPU prototype drops to single-digit FPS; release is fast, debug is slow.
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chapters (7)
- 0:00Introduction and motivation
- 6:47History of shading languages
- 13:06Designing C++ shader library
- 22:07Implementing vector swizzling
- 31:10Matrix support and operators
- 34:47Benchmarking and results
- 41:57Q&A session
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