OpenGL 4 Shading Language Cookbook - Third Edition

How to do it...

Start by compiling the shader pair into SPIR-V using the glslangValidator tool:

glslangValidator -G -o basic.vert.spv basic.vert.glslglslangValidator -G -o basic.frag.spv basic.frag.glsl

If successful, this produces the basic.vert.spv and basic.frag.spv SPIR-V output files.

To load your SPIR-V shaders into an OpenGL program, use glShaderBinary and glSpecializeShader. With glShaderBinary, use GL_SHADER_BINARY_FORMAT_SPIR_V as the binary format:

GLuint vertShader = glCreateShader(GL_VERTEX_SHADER);// Load the shader into a std::vectorstd::ifstream inStream("basic.vert.spv", std::ios::binary);std::istreambuf_iterator<char> startIt(inStream), endIt;std::vector<char> buffer(startIt, endIt);inStream.close();// Load using glShaderBinary ...