This is not work :-(

elis-cool · 2002-12-09T03:23:02

this is saying that my card doesnt have 16bit depth buffer support, when im pretty sure it does... // 16 bit depth buffer if(FAILED(pd3d->CheckDeviceFormat(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_A8R8G8B8, D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_SURFACE, D3DFMT_D16))) { MessageBox(hMainWnd, "16 bit depth buffer unsupported. Engine cannot function without this.", "Volatile Engine: Error", MB_ICONERROR|MB_OK); pCSystem->Log("ERROR: 16 bit depth buffer unsupported."); pCSystem->Log("Engine cannot function without this."); return false; } else pCSystem->Log("CAPS: 16 bit depth buffer supported."); edit: fixed comment thing [edited by - elis-cool on December 7, 2002 2:04:19 AM]

Graphics and GPU Programming Programming

Started by elis-cool December 06, 2002 08:39 PM

22 comments, last by elis-cool 21 years, 4 months ago

niyaw

158

December 08, 2002 02:00 AM

quote:Original post by elis-cool
Ok, so I checked the caps... it doesnt support D3DFMT_A8R8G8B8...
But I know other games and stuff ive played have used alpha textures for sprites and stuff... what the hell??

you use alpha for texture format, but not for backbuffer format.

GdWiki

elis-cool

271

Author

December 08, 2002 06:24 AM

hmmn but doesnt the backbuffer need alpha so you blend colors? if not then whats the point of alpha in the backbuffer?

[email=esheppard@gmail.com]esheppard@gmail.com[/email]

niyaw

158

December 08, 2002 08:24 PM

quote:Original post by elis-cool
hmmn but doesnt the backbuffer need alpha so you blend colors?

no. the common SRCALPHA/INVSRCALPHA blending, for instance, only requires alpha to be present in the texture. ONE/ONE additive blending doesn''t use destination alpha either.

quote:
if not then whats the point of alpha in the backbuffer?

there is none.

unless, of course, you''re doing something really special.

GdWiki

elis-cool

271

Author

December 09, 2002 03:23 AM

cool, thanks man.

[email=esheppard@gmail.com]esheppard@gmail.com[/email]

This is not work :-(

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This is not work :-(

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