[PD] pix_mask and gemframebuffer
ch at chnry.net
Wed Nov 9 13:41:37 CET 2011
Le 09/11/2011 12:23, Max a écrit :
> thanks cyrille,
> am i getting closer?
yes, a bit.
except that :
- gemframbuffer does not have the same camera position than gemhead.
you need to add translateXYZ 0 0 -4
- pix_snap snap the curent frambuffer, you don't need to pass the framebuffer texture.
> it's ok if it is slow, but i want to use gem objects to make a mask i can animate in gem, so there is now way around the snapping if i understand that correctly.
it's possible with shader : render 1st scene in a frambuffer
other scene in a 2nd frambuffer. set it to use texunit 1
then, use something like the example : 10.glsl/5.multitexture, and change a bit the mixing equation.
> Am 09.11.2011 um 14:07 schrieb cyrille henry:
>> pix_masque need a pix, not a texture.
>> (one is in the CPU, the other in the GPU).
>> you need a pix_snap to pass the texture to a pix object.
>> beware, this is slow.
>> i recommend using a shader to emulate pix_masque, but using 2 texture and not 2 pix.
>> it will be hundred time faster.
>> Le 09/11/2011 11:52, Max a écrit :
>>> dear list,
>>> i'm trying to generate a b/w mask in gemframebuffer for a pix_mask
>>> pix_mask seems to ignore the texture from gemframbuffer.
>>> hints appreciated.
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