public static ITexture CopyTexture(ITexture src)
{
ITexture dst = PoolProxy.GetResource <ObtainRenderTargetPool, RenderTargetAllocationPolicy, TextureParameters, ITexture>(src.GetTextureParameters());
var renderTarget = GL.GenFramebuffer();
GL.BindFramebuffer(FramebufferTarget.Framebuffer, renderTarget);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, src.GetTextureParameters().TexTarget, dst.GetTextureDescriptor(), 0);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
//GL.Disable(EnableCap.DepthTest);
GL.Viewport(0, 0, src.GetTextureRezolution().X, src.GetTextureRezolution().Y);
// start copy texture to render target
copyShader.startProgram();
src.BindTexture(TextureUnit.Texture0);
copyShader.SetUniformValues(0);
var quadBuffer = ScreenQuad.GetScreenQuadBuffer();
quadBuffer.RenderVAO(PrimitiveType.Triangles);
copyShader.stopProgram();
GL.Enable(EnableCap.DepthTest);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
GL.DeleteFramebuffer(renderTarget);
return(dst);
}
public static void ResolvePostProcessResultToDefaultFramebuffer(ITexture frameTexture, ITexture postProcessResultTexture, Point actualScreenRezolution)
{
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit | ClearBufferMask.StencilBufferBit);
GL.Viewport(0, 0, actualScreenRezolution.X, actualScreenRezolution.Y);
//GL.Disable(EnableCap.DepthTest);
resolvePostProcessShader.startProgram();
frameTexture.BindTexture(TextureUnit.Texture0);
postProcessResultTexture.BindTexture(TextureUnit.Texture1);
resolvePostProcessShader.setPostProcessResultSampler(1);
var quadBuffer = ScreenQuad.GetScreenQuadBuffer();
quadBuffer.RenderVAO(PrimitiveType.Triangles);
resolvePostProcessShader.stopProgram();
GL.Enable(EnableCap.DepthTest);
}