Rendering to a texture...

Graphics and GPU Programming Programming

Started by LemonLime June 19, 2005 04:41 PM

2 comments, last by LemonLime 18 years, 10 months ago

100

Author

June 19, 2005 04:41 PM

Hi, I need to render to a texture, that will also be rendered. From what I can gather from the help, it is only possible to render to a surface, and a surface cannot be used as a texture.


IDirect3DDevice9::SetRenderTarget(DWORD RenderTargetIndex,IDirect3DSurface9 *pRenderTarget);

IDirect3DDevice9::SetTexture(DWORD Sampler,IDirect3DBaseTexture9 *pTexture);

Do I need to copy the surface to a texture (although this would be slow), or is there another way? Thanks for any help.

"Segregation or Supernova? YOUR MOVE..." - The Holy Ghost

sipickles

240

June 19, 2005 04:55 PM

Have a look at codesampler

v good site!

Simon

abnormal

223

June 19, 2005 05:09 PM

Basically just create a texture with a supported surface format and then call surface = texture.GetSurfaceLevel(0); to get the surface and use it with device.SetRenderTarget(0, surface); (you might also want to set a new depth stencil surface in case you don't want your original overwritten or use bigger texture sizes).

Microsoft DirectX MVP. My Blog: abi.exdream.com

LemonLime

100

Author

June 19, 2005 05:11 PM

Thanks to you both.

It was the GetSurfaceLevel() that I was missing.

"Segregation or Supernova? YOUR MOVE..." - The Holy Ghost