Just to be clear, you can have one shader applied to multiple objects but it will apply the same texture/effect/whatever to every object. Fine if you want say lighting applied to everything, but not if you want separate textures.
One solution: give each object a unique colour, and use the colour to select a texture from an array by index. Chris On 17 March 2010 09:51, thomas pachoud <[email protected]> wrote: > Hi, > not 100% sure, but I don't think you can use one single GLSL for multiple > objects. You should use one GLSL applied to each objects. In this way, each > objects will apply the same GLSL with his textures and 3D positionning and > lighting information. And if you need to act on full scene, you should add > one GLSL at the end of your pipeline, playing on your 2D final rendering. > On Tue, Mar 16, 2010 at 9:35 AM, George Toledo <[email protected]> wrote: >> >> I may be wrong, but I don't believe that is possible in QC. What you would >> need to do is use a separate shader for each object. GLSL in QC does support >> multiple textures, but I don't think one can assign them to arbitrary >> objects in the scene. >> I'm curious about this as well... I've successfully used GLSL in QC to >> send many different image sources to a shader, and to use the shader to >> crop, translate and dissolve, but that is in the context of a 2D surface. >> Is there a downside to putting each object in a separate GLSL macro, and >> using distinct textures for each in your scenario? You can always connect >> the join the lighting of each (or any other parameter) with insert >> splitters, so your multiple shaders can look cohesive in the scene when you >> move a light source (or whatever). >> -George Toledo >> >> On Mon, Mar 15, 2010 at 7:11 AM, luca palmili <[email protected]> wrote: >>> >>> Hi to all, >>> my scene is composed by N objects (o1, o2..., oN), each of them has got >>> one different texture (t1, t2, ..., tN). How can I render all the objects in >>> a single GLSL shader? I mean: if I pass my N texture as uniform parameters >>> to the GLSL shader, how can I tell to the GLSL shader to use texture_1 for >>> object_1, texture_2 for object_2, etc...? >>> Thank you! >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Quartzcomposer-dev mailing list ([email protected]) >>> Help/Unsubscribe/Update your Subscription: >>> >>> http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com >>> >>> This email sent to [email protected] >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> >> http://lists.apple.com/mailman/options/quartzcomposer-dev/thomas.pachoud%40gmail.com >> >> This email sent to [email protected] > > > > -- > Thomas Pachoud > ingénieur multimédia IMAC > www.creapach.fr > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/psonice%40gmail.com > > This email sent to [email protected] > _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
