Const PRELUDE
PRELUDE: string = ["float","int","uint","vec2","vec3","vec4","bvec2","bvec3","bvec4","ivec2","ivec3","ivec4","uvec2","uvec3","uvec4","mat2","mat3","mat4","sampler2D","sampler3D","samplerCube","sampler2DShadow","samplerCubeShadow",].map((x) => `const ${x} = env.${x};`).join("\n")