Example #1
0
// The start of the Application
int App::start(const std::vector<CL_String> &args)
{
	quit = false;

	CL_OpenGLWindowDescription desc;
	desc.set_title("ClanLib Light Surface Example");
	desc.set_size(CL_Size(900, 700), true);
	desc.set_multisampling(4);
	desc.set_allow_resize(true);
	desc.set_depth_size(16);

	CL_DisplayWindow window(desc);

	// Connect the Window close event
	CL_Slot slot_quit = window.sig_window_close().connect(this, &App::on_window_close);

	// Connect a keyboard handler to on_key_up()
	CL_Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);

	// Set up GUI
	CL_String theme;
	if (CL_FileHelp::file_exists("../../../Resources/GUIThemeAero/theme.css"))
		theme = "../../../Resources/GUIThemeAero";
	else if (CL_FileHelp::file_exists("../../../Resources/GUIThemeBasic/theme.css"))
		theme = "../../../Resources/GUIThemeBasic";
	else
		throw CL_Exception("No themes found");

	CL_GUIWindowManagerTexture wm(window);
	CL_GUIManager gui(wm, theme);

	// Get the graphic context
	CL_GraphicContext gc = window.get_gc();

	// Deleted automatically by the GUI
	Options *options = new Options(gui, CL_Rect(8, 8, CL_Size(340, 600)));
	options->request_repaint();

	// Setup graphic store
	GraphicStore graphic_store(gc);
	scene.gs = &graphic_store;

	// Prepare the display
	gc.set_map_mode(cl_user_projection);

	CL_PolygonRasterizer polygon_rasterizer;
	polygon_rasterizer.set_culled(true);
	polygon_rasterizer.set_face_cull_mode(cl_cull_back);
	polygon_rasterizer.set_front_face(cl_face_side_clockwise);
	gc.set_polygon_rasterizer(polygon_rasterizer);

	create_scene(gc);

	CL_Font font(gc, "tahoma", 24);

	graphic_store.image_grid = CL_Image(gc, "../../Display_Render/Blend/Resources/grid.png");

	FramerateCounter framerate_counter;

	unsigned int time_last = CL_System::get_time();
	// Run until someone presses escape
	while (!quit)
	{
		framerate_counter.frame_shown();

		unsigned int time_now = CL_System::get_time();
		time_delta = time_now - time_last;
		time_last = time_now;

		// Copy direction options
		light_distant->rotation_y = options->light_direction_heading;
		light_distant->rotation_x = options->light_direction_pitch;

		// Set material options

		float shininess = options->material_shininess;

		// Convert shininess from a percentage, using Lightwave 3d's method
		shininess = shininess / 100.0f;
		shininess = pow(2, (10.0f * shininess) + 2);

		teapot->model.SetMaterial(
			shininess,		// material_shininess
			CL_Vec4f(options->material_emission_color.r, options->material_emission_color.g, options->material_emission_color.b, options->material_emission_color.a),	// material_emission
			CL_Vec4f(options->material_ambient_color.r, options->material_ambient_color.g, options->material_ambient_color.b, options->material_ambient_color.a),	// material_ambient
			CL_Vec4f(options->material_specular_color.r, options->material_specular_color.g, options->material_specular_color.b, options->material_specular_color.a)	//material_specular
			);

		rotate_teapot();

		calculate_matricies(gc);

		update_light(gc, options);

		polygon_rasterizer.set_culled(true);
		gc.set_polygon_rasterizer(polygon_rasterizer);
		render(gc);

		gc.set_modelview(CL_Mat4f::identity());
		gc.set_map_mode(cl_map_2d_upper_left);
		polygon_rasterizer.set_culled(false);
		gc.set_polygon_rasterizer(polygon_rasterizer);

		CL_String fps(cl_format("%1 fps", framerate_counter.get_framerate()));
		font.draw_text(gc, 16-2, gc.get_height()-16-2, fps, CL_Colorf(0.0f, 0.0f, 0.0f, 1.0f));
		font.draw_text(gc, 16, gc.get_height()-16-2, fps, CL_Colorf(1.0f, 1.0f, 1.0f, 1.0f));

		wm.process();
		wm.draw_windows(gc);

		// Use flip(1) to lock the fps
		window.flip(0);

		// This call processes user input and other events
		CL_KeepAlive::process();
	}

	return 0;
}
Example #2
0
// The start of the Application
int App::start(const std::vector<CL_String> &args)
{
	quit = false;

	CL_OpenGLWindowDescription desc;
	desc.set_title("ClanLib Geometry Shader Example");
	desc.set_size(CL_Size(900, 700), true);
	desc.set_multisampling(0);
	desc.set_allow_resize(false);
	desc.set_depth_size(16);
	desc.set_version(3, 2, false);

	CL_DisplayWindow window(desc);

	// Connect the Window close event
	CL_Slot slot_quit = window.sig_window_close().connect(this, &App::on_window_close);

	// Connect a keyboard handler to on_key_up()
	CL_Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);

	// Get the graphic context
	CL_GraphicContext gc = window.get_gc();

	// Setup graphic store
	GraphicStore graphic_store(gc);
	scene.gs = &graphic_store;

	// Prepare the display
	gc.set_map_mode(cl_user_projection);

	CL_PolygonRasterizer polygon_rasterizer;
	polygon_rasterizer.set_culled(false);
	polygon_rasterizer.set_face_cull_mode(cl_cull_back);
	polygon_rasterizer.set_front_face(cl_face_side_clockwise);
	gc.set_polygon_rasterizer(polygon_rasterizer);

	create_scene(gc);

	camera_angle = 0.0f;

	CL_Font font(gc, "tahoma", 24);

	FramerateCounter framerate_counter;

	unsigned int time_last = CL_System::get_time();
	// Run until someone presses escape
	while (!quit)
	{
		framerate_counter.frame_shown();

		unsigned int time_now = CL_System::get_time();
		time_delta = time_now - time_last;
		time_last = time_now;

		control_camera();
		calculate_matricies(gc);

		gc.set_polygon_rasterizer(polygon_rasterizer);

		gc.clear_depth(1.0f);
		// ** If enabling below, change the graphic from alpha_ball2.png to alpha_ball.png in graphic_store.cpp
		//render_depth_buffer(gc);	// Render to depth buffer first, to fake sorting the particles
		render(gc);	// Render scene

		gc.set_modelview(CL_Mat4f::identity());
		gc.set_map_mode(cl_map_2d_upper_left);

		CL_String fps(cl_format("fps = %1", framerate_counter.get_framerate()));
		font.draw_text(gc, 16-2, gc.get_height()-16-2, fps, CL_Colorf(0.0f, 0.0f, 0.0f, 1.0f));
		font.draw_text(gc, 16, gc.get_height()-16-2, fps, CL_Colorf(1.0f, 1.0f, 1.0f, 1.0f));

		CL_String info(cl_format("Drawing %1 particles", ParticleObject::num_points));
		font.draw_text(gc, 16, 30, info);

		// Use flip(1) to lock the fps
		window.flip(0);

		// This call processes user input and other events
		CL_KeepAlive::process();
	}

	return 0;
}