Multiple textured quads without transparency?
Computer Science Canada Opengl help |
| Author: | Homer_simpson [ Wed Jan 28, 2009 11:56 pm ] |
| Post subject: | Opengl help |
ok i'm making a space game, I added a cockpit picture to be drawn on top of the background, i used masking with blending but i realized it significantly lowers fps rate. any alternate ideas on how to render a cockpit on top of the background scene? |
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| Author: | CodeMonkey2000 [ Thu Jan 29, 2009 2:18 am ] |
| Post subject: | RE:Opengl help |
Did you try using a PNG with an alpha channel? |
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| Author: | md [ Thu Jan 29, 2009 8:31 am ] |
| Post subject: | RE:Opengl help |
Textured quad with transparency, should be rather fast and easy to do. Positioning it might be a bit more of a challenge though. |
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| Author: | Homer_simpson [ Thu Jan 29, 2009 11:35 am ] |
| Post subject: | Re: RE:Opengl help |
CodeMonkey2000 @ Thu Jan 29, 2009 2:18 am wrote: Did you try using a PNG with an alpha channel? Homer_simpson wrote: ok i'm making a space game, I added a cockpit picture to be drawn on top of the background, i used masking with blending but i realized it significantly lowers fps rate. any alternate ideas on how to render a cockpit on top of the background scene? those 2 are the same thing, and that is what i've done |
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| Author: | md [ Thu Jan 29, 2009 11:42 am ] |
| Post subject: | RE:Opengl help |
Multiple textured quads without transparency? |
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| Author: | Homer_simpson [ Thu Jan 29, 2009 1:36 pm ] | ||
| Post subject: | Re: Opengl help | ||
never mind, alpha testing took care of it 
load a transparent tga file and do this when drawing the cockpit:
Mod Edit: Language must be in quotations for the syntax tags, "cpp" not cpp  |
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