glslangvalidator -V tesselationshader.vert -o tesselationshader.vert.spv
glslangvalidator -V tesselationshader.frag -o tesselationshader.frag.spv
glslangvalidator -V tesselationshader.tesc -o tesselationshader.tesc.spv
glslangvalidator -V tesselationshader.tese -o tesselationshader.tese.spv