[−][src]Macro pixels::include_spv
Provides a macro and type for including SPIR-V shaders in const data.
In an ideal world, a shader will be compiled at build-time directly into the executable. This is opposed to the typical method of including a shader, which reads a GLSL source code file from the file system at start, compiles it, and sends it to the GPU. That process adds a non-trivial amount of time to startup, and additional error handling code at runtime.
This macro moves all of that complexity to build-time. At least for the SPIR-V part of the
shader pipeline. (gfx-hal
backends have their own SPIR-V-to-native compilers at runtime.)