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When Clear doesnt Clear...

Started by Zaei Dec 19, 2001 at 6:43 AM 3 replies 600+ views

Original Post

Dec 19, 2001 at 6:43 AM

Are there any cases where a call to Clear() wont fail, and wont clear? I know that It will fail when there is no ZBuffer attached, and you specify D3DCLEAR_ZBUFFER (disregarding stencil buffer, not using it). But, it doesnt work when I dont specify _ZBUFFER and create the device without a zbuffer. It also doesnt return an error. Yet it still fails to clear. Any ideas? Z. [edit] Forgot to mention...This only happens while in Release Mode, and not running from the IDE. Otherwise, it works perfectly(Debug Build, no IDE, Debug Build, Release Build and hitting the "Go" button). Happens on both the Retail, and Debug versions of the runtime, and using refrast. MSVC6. Edited by - Zaei on December 19, 2001 7:45:47 AM

LordKronos

Dec 19, 2001 at 7:17 AM

There is a BIG warning sign there...the fact that it only happens in debug or only in release. In 100% of cases I have EVER seen where this happens, the problem always stems back to not initializing some memory (be it a pointer, a variable, an array, whatever). It may not be the most obvious thing either.

Have you tried calling glGetError and gluErrorString to see what (if anything) it tells you? I you passed in a bad param to a previous function, that could cause problems later on.

Zaei

Author

Zaei

Dec 19, 2001 at 7:28 AM

I will have to take a look into it. This could get ugly =). I have a LOT of functions to step through. I wish I could call glGetError(), but this is DX... not much help there. Too bad there isnt a magical FixBugs() function.

Z.

KingsRevenge

Dec 19, 2001 at 8:01 AM

Yo i had this same problem, but I can''t remember what i did to fix it, it was something stupid though, check your RenderStates i think it''s somewhere in there.

Eric Wright o0Programmer0o

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LordKronos

Dec 19, 2001 at 1:31 PM

quote:
Original post by Zaei
I wish I could call glGetError(), but this is DX... not much help there. Too bad there isnt a magical FixBugs() function.

Doh!!! I''ll have to read better next time

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