/// <summary>
/// Unbinds the RS4P from OpenGL and a view.
/// </summary>
/// <param name="view">The view.</param>
public void Unbind(View3D view)
{
IsBound = false;
view.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
view.Viewport(0, 0, view.Width, view.Height);
GL.DrawBuffer(DrawBufferMode.Back);
view.BufferDontTouch = false;
}
/// <summary>
/// Constructs the RS4P.
/// </summary>
/// <param name="_width">Texture width.</param>
/// <param name="_height">Texture height.</param>
/// <param name="rendering">Render helper.</param>
/// <param name="view">View system.</param>
public RenderSurface4Part(int _width, int _height, Renderer rendering, View3D view)
{
Rendering = rendering;
Width = _width;
Height = _height;
GL.GenFramebuffers(1, out fbo);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, fbo);
GL.GenTextures(1, out DiffuseTexture);
GL.BindTexture(TextureTarget.Texture2D, DiffuseTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, Width, Height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D, DiffuseTexture, 0);
GL.GenTextures(1, out PositionTexture);
GL.BindTexture(TextureTarget.Texture2D, PositionTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba32f, Width, Height, 0, PixelFormat.Rgba, PixelType.Float, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment1, TextureTarget.Texture2D, PositionTexture, 0);
GL.GenTextures(1, out NormalsTexture);
GL.BindTexture(TextureTarget.Texture2D, NormalsTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba16f, Width, Height, 0, PixelFormat.Rgba, PixelType.Float, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment2, TextureTarget.Texture2D, NormalsTexture, 0);
GL.GenTextures(1, out DepthTexture);
GL.BindTexture(TextureTarget.Texture2D, DepthTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.DepthComponent32, Width, Height, 0, PixelFormat.DepthComponent, PixelType.Float, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment, TextureTarget.Texture2D, DepthTexture, 0);
GL.GenTextures(1, out RenderhintTexture);
GL.BindTexture(TextureTarget.Texture2D, RenderhintTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba16f, Width, Height, 0, PixelFormat.Rgba, PixelType.Float, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment3, TextureTarget.Texture2D, RenderhintTexture, 0);
GL.GenTextures(1, out Rh2Texture);
GL.BindTexture(TextureTarget.Texture2D, Rh2Texture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba16f, Width, Height, 0, PixelFormat.Rgba, PixelType.Float, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (uint)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (uint)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (uint)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (uint)TextureWrapMode.ClampToEdge);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment4, TextureTarget.Texture2D, Rh2Texture, 0);
view.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
/// <summary>
/// Binds the RS4P to OpenGL and a view.
/// </summary>
/// <param name="view">The view.</param>
public void Bind(View3D view)
{
IsBound = true;
view.BufferDontTouch = true;
view.BindFramebuffer(FramebufferTarget.Framebuffer, (int)fbo);
view.Viewport(0, 0, Width, Height);
GL.DrawBuffers(6, new DrawBuffersEnum[] { DrawBuffersEnum.ColorAttachment0, DrawBuffersEnum.ColorAttachment1,
DrawBuffersEnum.ColorAttachment2, DrawBuffersEnum.ColorAttachment3, DrawBuffersEnum.ColorAttachment4, DrawBuffersEnum.ColorAttachment5 });
//GL.BlendFunc(3, BlendingFactorSrc.One, BlendingFactorDest.Zero);
GL.ActiveTexture(TextureUnit.Texture0);
GL.Enable(EnableCap.Texture2D);
}
