Shaders should be distinct for now

src/resource_manager.cpp

@@ -15,7 +15,9 @@ std::shared_ptr<Heightmap> ResourceManager::fetch_heightmap(const std::string fi
 	}
 	else {
 		try {
+			std::cout << "Constructing Heightmap " << filename << std::endl << std::flush;
 			_heightmaps.push_back(std::make_shared<Heightmap>(filename));
+			std::cout << "Heightmap constructed." << std::endl << std::flush;
 			return _heightmaps.back();
 		}
 		catch(std::exception e){
@@ -26,8 +28,12 @@ std::shared_ptr<Heightmap> ResourceManager::fetch_heightmap(const std::string fi
 }
 
 std::shared_ptr<Shader> ResourceManager::fetch_shader(const std::string vertexPath, const std::string fragmentPath) {
-	/*Check if Heightmap is already loaded*/
+	/*Check if Shader is already loaded*/
+	/*TODO: For the moment, this is disabled, because not all uniforms are applied per drawcall, there is some heightmap-state stored in them.*/
+	/*
 	auto found = std::find_if(_shaders.begin(), _shaders.end(), [vertexPath, fragmentPath](auto s) {return s->is(vertexPath, fragmentPath); });
+	*/
+	auto found = _shaders.end();
 	if (found != _shaders.end()) {
 		return *found;
 	}