If I have an instance shape, a square polymesh with a UV 0,0 1,1 Couldn't I Offset the position of that Uvs with a value corresponding to Cls.Texture_Coordinates_AUTO.texture_Projection.UVs of the Particle on the mesh ? Scale it a bit, so that it takes a tiny portion of the UV area, And voilà.
?? Le 01/10/2013 12:18, olivier jeannel a écrit : > Damn, that's annoying... > What about the Sprite node ? > SecondReality did something > https://vimeo.com/34463159 > But on a grid (my object is 3D with a lot of particles and overlaps) > > Le 01/10/2013 12:05, [email protected] a écrit : >> you're not missing something, this is totally normal. >> at any given position (location) you have a single UV coordinate (one u and >> one v value) - so that will result in a single color for the whole of the >> particle. >> >> in order to get the corresponding crop from the texture, you would need 4 uv >> coordinates for the four corners of a grid assuming your particle is a >> rectangle - but a particle is a single point so that’s just not going to >> work. (yes - you could save 4 attributes but you can't interpolate between >> them in the rendertree) >> I guess *in theory* it could be done, by calculating proper values to drive >> the UV remap in a texture node, for each particle based on it's position in >> the UV set and size - and saving those in a number of attributes - - but >> this is far from trivial. And you couldn’t account for seams in the map. >> >> >> -----Original Message----- >> From: olivier jeannel >> Sent: Tuesday, October 01, 2013 11:18 AM >> To: [email protected] >> Subject: Re: Particle "taking uvs" from it's emitter >> >> Sorry Grahame, but it's not working. I mean it just gives a a color to >> the particle, but not the piece of texture Uvs corresponding to its Emit >> Location. >> Here's a screengrab, I probably miss something : >> >> Le 30/09/2013 21:11, Grahame Fuller a écrit : >>> Plug Self.EmitLocation into the source port of a Get Data, then get >>> cls.Texture_Coordinates_AUTO.Texture_Projection.UVs. >>> >>> gray >> >> >> >> >> >> -------------------------- >> To unsubscribe: mail [email protected] with subject >> "unsubscribe" and reply to the confirmation email. >> >> -------------------------- >> To unsubscribe: mail [email protected] with subject >> "unsubscribe" and reply to the confirmation email. > -------------------------- > To unsubscribe: mail [email protected] with subject > "unsubscribe" and reply to the confirmation email. -------------------------- To unsubscribe: mail [email protected] with subject "unsubscribe" and reply to the confirmation email.
