Open shehackedyou opened 8 months ago
vertexShader, err := compileShader(vertexShaderSource, gl.VERTEX_SHADER)
if err != nil {
return 0, err
}
gl.AttachShader(program, vertexShader)
# Then you can delete and presumably re-add to make the switch
gl.DeleteShader(program, vertexShader)
func compileShader(source string, shaderType uint32) (uint32, error) {
shader := gl.CreateShader(shaderType)
csources, free := gl.Strs(source)
gl.ShaderSource(shader, 1, csources, nil)
free()
gl.CompileShader(shader)
var status int32
gl.GetShaderiv(shader, gl.COMPILE_STATUS, &status)
if status == gl.FALSE {
var logLength int32
gl.GetShaderiv(shader, gl.INFO_LOG_LENGTH, &logLength)
log := strings.Repeat("\x00", int(logLength+1))
gl.GetShaderInfoLog(shader, logLength, nil, gl.Str(log))
return 0, fmt.Errorf("failed to compile %v: %v", source, log)
}
return shader, nil
}
I like how simple this project is go-gl isn't trying to be a full engine just control over gl, which is nice because I want to build a 3D scene to be streamed.
Any recommendations on how to implement custom shaders? Itd be nice to be able to switch between them, it would create a mechanic.