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Blending on modern hardware?

category: general [glöplog]
 
I'm curious. If I want some screen space effects that could happen to use blending should I blend or use textures and do the blending operations in the shader if possible?
added on the 2009-03-29 03:51:41 by xernobyl xernobyl
Ok, I shut up because someone told me to do so.
added on the 2009-03-29 04:03:21 by nystep nystep
if you can use the blending unit, use it; ping-ponging with textures has a notable overhead, while blending is usually built into the pixel write logic, so the computation is virtually for free (you still need the extra bandwidth though).
added on the 2009-03-29 04:37:42 by ryg ryg
Thank you.

Here's a random image:
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added on the 2009-03-29 04:46:55 by xernobyl xernobyl
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added on the 2009-03-31 10:57:33 by xTr1m xTr1m
be an alpha male
alpha males don't blend very good.
added on the 2009-03-31 19:22:00 by raer raer
Blending on modem hardware? wtf! Still, it'll be a mind-blowing wild if you pull it off!
added on the 2009-03-31 19:29:07 by psonice psonice
will it blend?
added on the 2009-03-31 20:55:21 by Gargaj Gargaj
Not if it is mine it won't. But I'll gladly make you all a milkshake.
added on the 2009-03-31 20:57:17 by xernobyl xernobyl
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added on the 2009-03-31 21:20:40 by iq iq
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added on the 2009-04-01 01:05:41 by psonice psonice
will it de-blend?
added on the 2009-04-01 01:14:52 by bdk bdk

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