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zbuffer switch

Graphics and GPU Programming Programming

Started by NiGoea October 11, 2009 08:40 AM

5 comments, last by Erik Rufelt 14 years, 6 months ago

NiGoea

104

Author

October 11, 2009 08:40 AM

Hi, In my deferred engine, when I render lights, I exploit the device zbuffer to avoid rendering invisible pixel. But now I need to render for each light its shadow map, endind up overwriting the zbuffer (this pass uses the zbuffer). I was wondering, how do you resolve this ? Is there any way to switch zbuffer, or to use a 'secondary' zbuffer ? THANKS!

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5,903

October 11, 2009 08:48 AM

Yes there should be. What API/language are you using?

NiGoea

104

Author

October 11, 2009 08:49 AM

Quote:Original post by Erik Rufelt
Yes there should be. What API/language are you using?

DX9

5,903

October 11, 2009 08:52 AM

You can use the CreateDepthStencilSurface and SetDepthStencilSurface methods of your device.

NiGoea

104

Author

October 11, 2009 09:02 AM

Quote:Original post by Erik Rufelt
You can use the CreateDepthStencilSurface and SetDepthStencilSurface methods of your device.

I was just searching for the method you've writen here.
Thank you man !

NiGoea

104

Author

October 11, 2009 09:04 AM

One last question: how do I set the 'device' zbuffer ? I mean, the zbuffer normaly used.

THANKS !

5,903

October 11, 2009 09:16 AM

GetDepthStencilSurface should let you obtain a reference to the auto-depth-stencil surface.

This topic is closed to new replies.

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