I honestly dont think its you :) There was a thread earlier called
floating point textures that determined GLSL had a quirck or two in
treating video types from QC to vertex programs compared to fragment
programs. Check it out. Your system isa NVidia card, so perhaps thats
why its working on your end.
Thanks though, I did not mean to be a bummer! GLSL is fun, definitely
keep hammering at it!
On Dec 2, 2007, at 5:09 AM, Adrian Ward wrote:
On 2 Dec 2007, at 07:50, vade wrote:
Hm, this patch does not work on my system, and renders really
slowly, around 10fps. I have a dual 2.33 macbook pro with 3gb of
ram. Youre using a sampler in the vertex program wish is supported
on VERY few machines - whats odd is that i wrote a similar shader
and posted it earlier, which did work on my system - with only
images - this one now does not work with video or images
What kind of hardware are you on, and OS rev?
Hmm, curious. I'm on a dual 2.4 MacBook Pro with 2gb ram, GeForce
8600M GT 256MB, Mac OS X 10.5.1 (9B18).
I noticed that different image sources produced different
framerates. I got a great framerate using a Movie Loader to load
an .mp4 file, but when I connected it to my built-in iSight the
framerate dropped very low (~10fps too). I'm afraid my knowledge of
OpenGL is exhausted at this stage but could it be due to the image
format not being suitable for passing into the GLSL shader, thus
needing expensive conversion?
I think I'll consign my experiment to the trash can. Thanks for the
feedback and explaining where I was going wrong. GLSL seems very
powerful but I really need to learn about it properly before I can
go much further.
Cheers,
A.
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