static void DrawGradient(Controls.OpenGL.GLControl glControl)
{
if (SceneBackground == null)
{
SceneBackground = new STLModel3D();
SceneBackground.Triangles = new TriangleInfoList();
var gradientColor1 = new Byte4Class(255, 19, 20, 21);
var gradientColor2 = new Byte4Class(255, 39, 42, 61);
var triangle = new Triangle();
triangle.Vectors[0].Position = new Vector3Class(-1f, -1f, 0f);
triangle.Vectors[0].Color = gradientColor2;
triangle.Vectors[1].Position = new Vector3Class(1f, 1f, 0);
triangle.Vectors[1].Color = gradientColor1;
triangle.Vectors[2].Position = new Vector3Class(-1f, 1f, 0);
triangle.Vectors[2].Color = gradientColor1;
SceneBackground.Triangles[0].Add(triangle);
triangle = new Triangle();
triangle.Vectors[0].Position = new Vector3Class(-1f, -1f, 0f);
triangle.Vectors[0].Color = gradientColor2;
triangle.Vectors[1].Position = new Vector3Class(1f, -1f, 0);
triangle.Vectors[1].Color = gradientColor2;
triangle.Vectors[2].Position = new Vector3Class(1f, 1f, 0);
triangle.Vectors[2].Color = gradientColor1;
SceneBackground.Triangles[0].Add(triangle);
SceneBackground.Loaded = true;
SceneBackground.BindModel();
SceneBackground.UpdateBinding();
}
GL.Viewport(0, 0, glControl.Width, glControl.Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.Lighting);
GL.PolygonMode(MaterialFace.Front, PolygonMode.Fill);
GL.EnableClientState(ArrayCap.ColorArray);
GL.EnableClientState(ArrayCap.VertexArray);
foreach (var vboIndex in SceneBackground.VBOIndexes)
{
GL.BindBuffer(BufferTarget.ArrayBuffer, vboIndex);
GL.ColorPointer(4, ColorPointerType.UnsignedByte, Vertex.Stride, new IntPtr(0));
GL.VertexPointer(3, VertexPointerType.Float, Vertex.Stride, 4);
GL.DrawArrays(PrimitiveType.Triangles, 0, SceneBackground.Triangles[0].Count * 3);
}
GL.DisableClientState(ArrayCap.ColorArray);
GL.DisableClientState(ArrayCap.VertexArray);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.Lighting);
}
public static void RenderAsModelView(Controls.OpenGL.GLControl glControl, float cameraRotationX, float cameraRotationZ, float cameraZoom, float panX, float panY, bool thumbnailRendering = false, bool thumbnailLarge = false)
{
try
{
if (glControl.Context.IsCurrent)
{
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.StencilBufferBit | ClearBufferMask.ColorBufferBit);
if (!thumbnailRendering)
{
DrawGradient(glControl);
//GL.ClearColor(Settings.Default.SceneBackgroundColor);
if (UserProfileManager.UserProfiles[0].SelectionOptions_Enable_XYZ_Axis)
{
DrawOrientationGizmo();
}
}
else
{
if (!thumbnailLarge)
{
GL.ClearColor(Color.White);
}
else
{
GL.ClearColor(Color.FromArgb(230, 230, 230, 230));
}
}
int w = glControl.Width;
int h = glControl.Height;
float aspectRatio = (float)w / (float)h;
GL.Viewport(0, 0, w, h);
ProjectionMatrix = Matrix4.CreatePerspectiveFieldOfView(0.55f, aspectRatio, 1, 2000);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.LoadMatrix(ref ProjectionMatrix);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
OrbitCamera = new OrbitCameraController(CameraPositionTargetCenter);
OrbitCamera.MouseMove(cameraRotationX, cameraRotationZ);
OrbitCamera.Pan(panX, panY);
OrbitCamera.Scroll(_defaultCameraDistance + cameraZoom);
var lookat = OrbitCamera.GetCameraView();
CameraPosition = OrbitCamera.GetCameraPosition();
//GL.Matrix
GL.LoadMatrix(ref lookat);
}
}
catch (Exception exc)
{
Debug.WriteLine(exc.Message);
}
}
