protected override void OnRenderFrame(FrameEventArgs e)
{
OpenTK.Input.MouseState mouseState = OpenTK.Input.Mouse.GetState();
if (mouseState.IsButtonDown(OpenTK.Input.MouseButton.Left))
{
xPosition -= e.Time;
}
if (mouseState.IsButtonDown(OpenTK.Input.MouseButton.Right))
{
xPosition += e.Time;
}
GL.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Matrix4 projMatrix = Matrix4.CreateOrthographicOffCenter(0, DEFAULT_WIDTH, 0, DEFAULT_HEIGHT, -1.0f, 1.0f);
Matrix4 viewMatrix = Matrix4.Identity;
Matrix4.CreateRotationZ((float)RotationAngle, out Matrix4 tempMatrix);
Matrix4.CreateTranslation((float)xPosition * 200, -50.0f, 0.0f, out Matrix4 tempMatrix2);
foreach (var obj in GameObjects)
{
Matrix4 mvp = tempMatrix2 * tempMatrix * obj.ModelMatrix * viewMatrix * projMatrix;
GL.UseProgram(MainShaderProgram.ProgramId);
GlCustomUtil.Bind3dObject(obj);
GL.UniformMatrix4(MainShaderProgram.MatrixShaderLocation, false, ref mvp);
GL.DrawElements(PrimitiveType.Triangles, obj.Indices.Length, DrawElementsType.UnsignedInt, 0);
var x = GL.GetError();
}
SwapBuffers();
}
protected override void OnLoad(EventArgs e)
{
GameObjects = new List <BufferData> {
Geometry.GetTriangle1(),
Geometry.GetTriangle2()
}
.Select(x => GlCustomUtil.GeometryTo3dObject(x))
.ToList();
// TODO: Use the unbind function to clean up. Maybe have a class CustomGlContext.
foreach (Object3d obj3d in GameObjects)
{
GlCustomUtil.Bind3dObject(obj3d);
}
MainShaderProgram = GlCustomUtil.CreateShaderProgram();
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill);
GL.PatchParameter(PatchParameterInt.PatchVertices, 3);
GL.Enable(EnableCap.Blend);
GL.BlendEquation(BlendEquationMode.FuncAdd);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
}