unsafe void DrawGLScene()
{
int count;
gl.GetIntegerv(gl.GL_MAX_TEXTURE_UNITS, &count);
gl.Viewport(ClientRectangle.Left, ClientRectangle.Top, ClientRectangle.Width, ClientRectangle.Height);
gl.MatrixMode(gl.GL_PROJECTION);
gl.LoadIdentity();
gluPerspective(45, (float)ClientSize.Width / (float)ClientSize.Height, .1f, 100);
gl.MatrixMode(gl.GL_MODELVIEW);
gl.LoadIdentity();
float[] triangle = new float[] { 0.0f, 1.0f, 0.0f, -1.0f, -1.0f, 0.0f, 1.0f, -1.0f, 0.0f };
float[] colors = new float[] { 1.0f, 0.0f, 0.0f, 9, 0.0f, 1.0f, 0.0f, 0, 0.0f, 0.0f, 1.0f, 0 };
gl.LoadIdentity();
gl.Translatef(0.0f, 0.0f, -6.0f);
gl.Rotatef(myRotation, 0.0f, 1.0f, 0.0f);
fixed(float *trianglePointer = &triangle[0], colorPointer = &colors[0])
{
gl.EnableClientState(gl.GL_VERTEX_ARRAY);
gl.VertexPointer(3, gl.GL_FLOAT, 0, (IntPtr)trianglePointer);
gl.EnableClientState(gl.GL_COLOR_ARRAY);
gl.ColorPointer(4, gl.GL_FLOAT, 0, (IntPtr)colorPointer);
gl.DrawArrays(gl.GL_TRIANGLES, 0, 3);
gl.DisableClientState(gl.GL_VERTEX_ARRAY);
gl.DisableClientState(gl.GL_COLOR_ARRAY);
gl.Flush();
}
myRotation += 2f;
gl.MatrixMode(gl.GL_PROJECTION);
gl.LoadIdentity();
gl.Orthof(0, ClientSize.Width, ClientSize.Height, 0, -10, 10);
gl.MatrixMode(gl.GL_MODELVIEW);
gl.LoadIdentity();
myLeftAligned.Draw();
gl.Translatef(0, 80, 0);
myCentered.Draw();
GlyphRun fpsText = new GlyphRun(myFont, Math.Round(myFps, 2).ToString() + " FPS");
fpsText.Draw();
gl.Translatef(0, 80, 0);
myJustified.Draw();
}
