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Help => Graphics => Topic started by: Boogiwoogie on February 09, 2010, 04:04:09 pm

Title: Clear() doesnt clear Depth Buffer
Post by: Boogiwoogie on February 09, 2010, 04:04:09 pm

Hi,
I was just about to do some SFML/pure OpenGL mixing. Found out that RenderWindow->Clear() does not clear the depth buffer. Not surprising, because a depth buffer is not in use ;)
However, if I create my RenderWindow using the ContextSettings, and I set DepthBits to some reasonable value, I would expect Clear() to clear it, too.
No big deal, though.
boogi

Title: Clear() doesnt clear Depth Buffer
Post by: Laurent on February 09, 2010, 04:38:39 pm

Quote

However, if I create my RenderWindow using the ContextSettings, and I set DepthBits to some reasonable value, I would expect Clear() to clear it, too.

That wouldn't be a good idea. You control what's written in the depth-buffer, you control its activation/deactivation, you control the clear value, so... you control the moment you want to clear it too.
SFML, on the other hand, doesn't even know what a depth-buffer is (except in ContextSettings, which makes sense only for external OpenGL code anyway).