internal RenderTexture(IDevice device, int width, int height)
{
handle = device.GenFramebuffer();
underlyingTexture = new Texture(device, (uint[])null, width, height);
device.BindFramebuffer(FramebufferTarget.Framebuffer, handle);
device.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D,
underlyingTexture.Handle, 0);
// create a renderbuffer object for depth and stencil attachment (we won't be sampling these)
depthHandle = device.GenRenderbuffer();
device.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthHandle);
device.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferStorage.Depth24Stencil8, width, height);
device.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthStencilAttachment, RenderbufferTarget.Renderbuffer, depthHandle);
device.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
this.device = device;
}
/// <summary>
/// Sets current render texture.
/// call only from render thread
/// </summary>
/// <param name="renderTexture">render texture or null, then it resets to back buffer</param>
public void SetRenderTexture(RenderTexture renderTexture, int destFramebuffer)
{
if (renderTexture == null)
{
device.BindFramebuffer(FramebufferTarget.Framebuffer, destFramebuffer);
}
else
{
renderTexture.ActivateFrameBuffer();
}
//RenderTargetView view = renderTexture == null ? renderTargetView : renderTexture.TargetView;
//device.ImmediateContext.OutputMerger.SetTargets(depthStencilView, view);
}
public void ActivateFrameBuffer()
{
device.BindFramebuffer(FramebufferTarget.Framebuffer, handle);
device.Viewport(0, 0, (int)Width, (int)Height);
}