glslangvalidator -V ground.vert -o ground.vert.spv
glslangvalidator -V ground.frag -o ground.frag.spv
glslangvalidator -V indirectdraw.vert -o indirectdraw.vert.spv
glslangvalidator -V indirectdraw.frag -o indirectdraw.frag.spv
glslangvalidator -V skysphere.vert -o skysphere.vert.spv
glslangvalidator -V skysphere.frag -o skysphere.frag.spv