working 3d textures

build.rs

@@ -53,6 +53,8 @@ fn main() {
     // Options
     let mut options = shaderc::CompileOptions::new().expect("Unable to create compile options");
     options.set_include_callback(resolve_include);
+    options.set_source_language(shaderc::SourceLanguage::GLSL);
+    //options.set_optimization_level(shaderc::OptimizationLevel::Performance);
 
     // Compile all shaders
     let mut compiler = shaderc::Compiler::new().expect("Unable to create shader compiler");