// tick for OpenGL rendering code
public void RenderGL()
{
// measure frame duration
float frameDuration = timer.ElapsedMilliseconds;
timer.Reset();
timer.Start();
// prepare matrix for vertex shader
Matrix4 transform = Matrix4.CreatePerspectiveFieldOfView( 1.2f, 1.3f, .1f, 1000 );
// update rotation
a += 0.001f * frameDuration;
if (a > 2 * PI)
a -= 2 * PI;
// enable render target
target.Bind();
// render scene to render target
Matrix4 cameraM = Matrix4.CreateFromAxisAngle(new Vector3(0, 1, 0), a) * camera.cameramatrix * transform;
foreach (Mesh m in meshes)
sceneGraph.Render(shader, cameraM, wood, m);
GL.UseProgram(shader.programID);
GL.Uniform3(shader.uniform_viewdirection, new Vector3(cameraM.M13, cameraM.M23, cameraM.M33));
//GL.Uniform4(shader.uniform_light1pos, light1.position);
//GL.Uniform4(shader.uniform_light1dif, light1.diffuse);
//GL.Uniform4(shader.uniform_light1spec, light1.specularity);
//GL.Uniform3(shader.uniform_light1att, light1.attenuation);
//GL.Uniform4(shader.uniform_light2pos, light2.position);
//GL.Uniform4(shader.uniform_light2dif, light2.diffuse);
//GL.Uniform4(shader.uniform_light2spec, light2.specularity);
//GL.Uniform3(shader.uniform_light2att, light2.attenuation);
//GL.Uniform4(shader.uniform_light3pos, light3.position);
//GL.Uniform4(shader.uniform_light3dif, light3.diffuse);
//GL.Uniform4(shader.uniform_light3spec, light3.specularity);
//GL.Uniform3(shader.uniform_light3att, light3.attenuation);
//GL.Uniform4(shader.uniform_light4pos, light4.position);
//GL.Uniform4(shader.uniform_light4dif, light4.diffuse);
//GL.Uniform4(shader.uniform_light4spec, light4.specularity);
//GL.Uniform3(shader.uniform_light4att, light4.attenuation);
// render quad
target.Unbind();
quad.Render(postproc, target.GetTextureID());
}
public virtual void DrawPost(ScreenQuad q, RenderTarget t)
{
q.Render(postproc, t.GetTextureID());
}