protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (!this.DesignMode)
{
MakeCurrent();
GL.Viewport(ClientRectangle);
//float aspect = this.ClientSize.Width / (float)this.ClientSize.Height;
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
// 3D Setup
Matrix4 projection = viewport.ProjectionMatrix;
GL.LoadMatrix(ref projection);
GL.MatrixMode(MatrixMode.Modelview);
GL.Enable(EnableCap.Blend); // glEnable(GL_BLEND);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha); // glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL.ClearColor(Color.White);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.LoadIdentity();
GL.Enable(EnableCap.Lighting);
GL.Enable(EnableCap.ColorMaterial);
GL.Light(LightName.Light0, LightParameter.Position, new Vector4(0, 0, 1, 0));
GL.Light(LightName.Light0, LightParameter.Diffuse, new Vector4(.8f, .8f, .8f, 1));
GL.Light(LightName.Light0, LightParameter.Ambient, new Vector4(.3f, .3f, .3f, 1));
//GL.Light(LightName.Light0, LightParameter.Specular, new Vector4(1.0f, 1.0f, 1.0f, 1));
GL.Enable(EnableCap.Light0);
GL.ColorMaterial(MaterialFace.FrontAndBack, ColorMaterialParameter.AmbientAndDiffuse);
//GL.ColorMaterial(MaterialFace.Front, ColorMaterialParameter.AmbientAndDiffuse);
GL.Enable(EnableCap.ColorMaterial);
GL.LoadMatrix(ref viewport.viewMatrix);
GL.Normal3(new Vector3(0, 0, 1));
GL.Enable(EnableCap.Normalize);
GL.DepthMask(true);
GL.Enable(EnableCap.DepthTest);
GL.DepthFunc(DepthFunction.Lequal);
//GL.Enable(EnableCap.CullFace);
//GL.CullFace(CullFaceMode.Back);
GL.PolygonOffset(1.0f, 2.0f);
GL.Enable(EnableCap.PolygonOffsetFill);
viewport.Draw();
//GL.PushMatrix();
foreach (object o in objects)
{
if (o is IOpenGLDrawable)
{
var drawable = o as IOpenGLDrawable;
drawable.Draw();
}
}
//GL.PopMatrix();
SwapBuffers();
}
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (!this.DesignMode)
{
MakeCurrent();
GL.Viewport(ClientRectangle);
float aspect = this.ClientSize.Width / (float)this.ClientSize.Height;
//Matrix4 projection_matrix;
//Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, aspect, 1, 64, out projection_matrix);
//GL.MatrixMode(MatrixMode.Projection);
//GL.LoadMatrix(ref projection_matrix);
//GL.Viewport(0, 0, Width, Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
// 2D Setup
//GL.Ortho(viewport.Box.Left, viewport.Box.Right, viewport.Box.Bottom, viewport.Box.Top, 1, -1);
// 3D Setup
Matrix4 perspective = OpenTK.Matrix4.CreatePerspectiveFieldOfView(OpenTK.MathHelper.PiOver4, aspect, 0.1f, 10000.0f);
GL.LoadMatrix(ref perspective);
GL.DepthMask(true);
GL.Enable(EnableCap.DepthTest);
GL.DepthFunc(DepthFunction.Lequal);
GL.MatrixMode(MatrixMode.Modelview);
GL.Enable(EnableCap.Blend); // glEnable(GL_BLEND);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha); // glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL.ClearColor(Color.White);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.LoadIdentity();
GL.Enable(EnableCap.Lighting);
GL.Enable(EnableCap.ColorMaterial);
GL.Light(LightName.Light0, LightParameter.Position, new Vector4(0, 0, 1, 0));
GL.Light(LightName.Light0, LightParameter.Diffuse, new Vector4(.5f, .5f, .5f, 1));
GL.Light(LightName.Light0, LightParameter.Ambient, new Vector4(.3f, .3f, .3f, 1));
//GL.Light(LightName.Light0, LightParameter.Specular, new Vector4(0.5f, 0.5f, 0.5f, 1));
GL.Enable(EnableCap.Light0);
GL.ColorMaterial(MaterialFace.FrontAndBack, ColorMaterialParameter.AmbientAndDiffuse);
GL.Enable(EnableCap.ColorMaterial);
GL.LoadMatrix(ref viewport.viewMatrix);
viewport.Draw();
GL.Scale(.001, .001, .001);
GL.Enable(EnableCap.Normalize);
//GL.Translate(0, 0, -1000);
GL.Color3(Color.Black);
//GL.Color3(Color.Black);
//DrawCrosshairs(mouseLocation, gridScale);
GL.Color3(Color.LightGray);
//DrawGrid(viewport.Box, gridScale);
if (DrawScene2D != null)
{
DrawScene2D(this, EventArgs.Empty);
}
//DateTime t = DateTime.Now;
//for (int f = 0; f < 10; f++)
//{
for (int i = objects.Count() - 1; i >= 0; i--)
{
IIsUseful useful = objects[i] as IIsUseful;
if (useful != null && !useful.IsUseful())
{
objects.RemoveAt(i);
i--;
}
else
{
IOpenGLDrawable d = objects[i] as IOpenGLDrawable;
if (d != null)
{
GL.Color3(Color.White);
GL.PointSize(1);
GL.LineWidth(1);
d.Draw();
}
}
}
//}
//double time = (DateTime.Now - t).TotalMilliseconds;
//Console.WriteLine("Drawing Took " + time + " Milliseconds");
GL.Begin(BeginMode.Quads);
GL.Vertex3(0, 0, 0);
GL.Vertex3(0, 1, 0);
GL.Vertex3(1, 1, 0);
GL.Vertex3(1, 0, 0);
GL.End();
//Console.WriteLine("OnPaint Called!");
SwapBuffers();
}
}