Optimize color changing with OpenMP.

CMakeLists.txt

@@ -39,6 +39,7 @@ set(OpenGL_GL_PREFERENCE "GLVND")
 find_package(OpenGL REQUIRED)
 find_package(GLUT REQUIRED)
 find_package(GLEW REQUIRED)
+find_package(OpenMP REQUIRED)
 find_package(PkgConfig REQUIRED)
 pkg_search_module(SDL2 REQUIRED sdl2)
 
@@ -54,7 +55,7 @@ set(SRCS
 	"src/simulation.cpp")
 
 # Define C++ compiler flags
-set(CMAKE_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wpedantic -Wfatal-errors -Werror -pedantic-errors -fno-elide-constructors")
+set(CMAKE_CXX_FLAGS "-std=c++11 ${OpenMP_CXX_FLAGS} -Wall -Wextra -Wpedantic -Wfatal-errors -Werror -pedantic-errors -fno-elide-constructors")
 set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-g -O3")

src/cube.cpp

@@ -84,6 +84,7 @@ void cube::render() {
 }
 
 void cube::shift_colors() {
+	#pragma omp parallel for
 	for(size_t i = 0; i < colors.size(); ++i)
 	{
 		colors[i] += color_ascending[i] ? color_shift :

src/cube.hpp

@@ -36,7 +36,7 @@ public:
 	void render();
 
 private:
-	const float color_shift = 0.0001;
+	const float color_shift = 0.005;
 	void shift_colors();
 
 	// OpenGL buffers