public Renderer(StaticShader shader, WinowInfo Window)
{
window = Window;
createProjectionMatrix();
shader.start();
shader.loadProjectionMatrix(projectionMatrix);
shader.stop();
}
public void render(Entity entity, StaticShader shader)
{
TexturedModel model = entity.model;
RawModel rawModel = model.rawModel;
Gl.BindVertexArray(rawModel.vaoID);
Gl.EnableVertexAttribArray(0);
Gl.EnableVertexAttribArray(1);
Gl.EnableVertexAttribArray(2);
Matrix4f transformationMatrix = Maths.createTransformationMatrix(entity.position, entity.rotX, entity.rotY, entity.rotZ, entity.scale);
shader.loadTransformationMatrix(transformationMatrix);
Gl.ActiveTexture(TextureUnit.Texture0);
Gl.BindTexture(TextureTarget.Texture2d, model.modelTexture.textureId);
Gl.DrawElements(PrimitiveType.Triangles, rawModel.vertexCount, DrawElementsType.UnsignedInt, IntPtr.Zero);
Gl.DisableVertexAttribArray(0);
Gl.DisableVertexAttribArray(1);
Gl.DisableVertexAttribArray(2);
Gl.BindVertexArray(0);
}
static void Main(string[] args)
{
// Initialize OpenGL
Gl.Initialize();
// If the library isn't in the environment path we need to set it
Glfw.ConfigureNativesDirectory("..\\..\\libs/glfw-3.2.1.bin.WIN32/lib-mingw");
// Initialize the GLFW
if (!Glfw.Init())
{
Environment.Exit(-1);
}
// Create a windowed mode window and its OpenGL context
var window = Glfw.CreateWindow(width, height, "Unreal Engine 4");
if (!window)
{
Glfw.Terminate();
Environment.Exit(-1);
}
// set window icon
Glfw.Image icon = Utils.getImage("..\\..\\res/logo.png");
Glfw.SetWindowIcon(window, icon);
// Make the window's context current
Glfw.MakeContextCurrent(window);
// create shaders after creating opengl context
StaticShader shader = new StaticShader();
// create loder and renderer
Loader loader = new Loader();
Renderer renderer = new Renderer(shader, new WinowInfo(width, height));
// create model
RawModel model = OBJLoader.loadObjModel("dragon", loader);
ModelTexture texture = new ModelTexture(loader.loadTexture("..\\..\\res/white.jpg"));
TexturedModel staticModel = new TexturedModel(model, texture);
Entity entity = new Entity(staticModel, new Vertex3f(0, 0, -25), 0, 0, 0, 2);
Light light = new Light(new Vertex3f(0, 0, -20), new Vertex3f(1f, 1f, 1f));
Camera camera = new Camera();
// Loop until the user closes the window
while (!Glfw.WindowShouldClose(window))
{
entity.increaseRotation(0, 1, 0);
// Render here
camera.move(window);
renderer.prepare();
shader.start();
shader.loadLight(light);
shader.loadViewMatrix(camera);
renderer.render(entity, shader);
shader.stop();
//Swap front and back buffers
Glfw.SwapBuffers(window);
// Poll for and process events
Glfw.PollEvents();
}
// clean memory
shader.cleanUP();
loader.CleanUp();
// terminate program
Glfw.Terminate();
}