protected override void OnRenderFrame(FrameEventArgs E)
{
MakeCurrent();
OpenGLGC.CollectAll();
SetShaderUniforms();
GL.Disable(EnableCap.ScissorTest);
GL.Disable(EnableCap.StencilTest);
GL.Disable(EnableCap.Blend);
GL.Enable(EnableCap.CullFace);
GL.CullFace(CullFaceMode.Back);
//GL.Disable(EnableCap.CullFace);
GL.FrontFace(FrontFaceDirection.Ccw);
GL.Enable(EnableCap.DepthTest);
GL.DepthFunc(DepthFunction.Lequal);
GL.Viewport(0, 0, Width, Height);
GL.ClearColor(0.01f, 0.01f, 0.01f, 1.0f);
ClearBuffers();
// World geometry
GFrameBuffer.Bind();
{
ClearBuffers();
OnRenderClient?.Invoke((float)E.Time);
}
GFrameBuffer.Unbind();
// Screen quad
{
Camera CurCam = Camera.GetCurrent();
Camera.Push(UICam);
GL.FrontFace(FrontFaceDirection.Cw);
SSAOFrameBuffer.Bind();
//GL.Viewport(0, 0, Width / 2, Height / 2);
{
SSAOShader.SetUniform("MatProjection2", CurCam.Projection, false);
ScreenQuad.Draw(SSAOShader);
}
//GL.Viewport(0, 0, Width, Height);
SSAOFrameBuffer.Unbind();
float T = (float)SWatch.ElapsedMilliseconds / 1000;
PostShader.SetUniform("LightDir[0]", new Vector3((float)Math.Cos(T), 1, (float)Math.Sin(T)).Normalized(), false);
PostShader.SetUniform("MatTranslation2", CurCam.Translation, false);
PostShader.SetUniform("MatRotation2", CurCam.RotationMat, false);
PostShader.SetUniform("MatProjection2", CurCam.Projection, false);
ScreenQuad.Draw(PostShader);
Camera.Pop();
CheckError();
}
// UI
OnRenderUI?.Invoke((float)E.Time);
SwapBuffers();
}
public override RenderTexture Bind()
{
GL.GetInteger(GetPName.Viewport, OldViewport);
RTStack.Push(this);
if (IsDoubleBuffered)
{
OldBuffer.LoadData(NewBuffer);
}
FrameBuffer.Bind();
GL.Viewport(0, 0, Width, Height);
return(this);
}
