borisb2 Posted April 28, 2009 Share Posted April 28, 2009 Is it possible to render particles as points with transparency ? So far, when adding the Color-POP to the particles my particles are getting the Cd and alpha-attribute but the alpha is not being recognized in rendering. Is there a workflow to also render transparency? Do I have to attach a special shader to the particle-object ? Thanks Quote Link to comment Share on other sites More sharing options...
junaid Posted April 28, 2009 Share Posted April 28, 2009 Is it possible to render particles as points with transparency ?So far, when adding the Color-POP to the particles my particles are getting the Cd and alpha-attribute but the alpha is not being recognized in rendering. Is there a workflow to also render transparency? Do I have to attach a special shader to the particle-object ? Thanks you can use pic function and call called any animated imagessequence from copnet like this (pic("/copnet1/imageout", $BBX, $BBZ, DA) somthing like this, in point sop add alpha, before feeding that geo to popnetwork and emit particle based on that. Cheers, Junaid Quote Link to comment Share on other sites More sharing options...
anamous Posted April 28, 2009 Share Posted April 28, 2009 You should use a material that supports the Alpha point attribute - try for example the "Clay" material from the material shelf, it should do the trick. cheers, Abdelkareem Quote Link to comment Share on other sites More sharing options...
borisb2 Posted April 28, 2009 Author Share Posted April 28, 2009 Thanks! Yes, that Quote Link to comment Share on other sites More sharing options...
anamous Posted April 28, 2009 Share Posted April 28, 2009 maybe i misunderstood you, but here is what I meant as an example file, simple particle system, simple clay material - both alpha and color attributes are applied at render time. cheers, Abdelkareem alpha_clay.hip Quote Link to comment Share on other sites More sharing options...
Allegro Posted April 28, 2009 Share Posted April 28, 2009 Thanks!Yes, that Quote Link to comment Share on other sites More sharing options...
borisb2 Posted April 29, 2009 Author Share Posted April 29, 2009 (edited) The materials in the palette did not always have the "Use Point Alpha" toggle on them. This is something that was fixed a little more than a month ago. If you are using an older build of Houdini and do not have this option available by default on the clay material, you may want to download a more recent build. maybe that was the problem.. I built another material using VEX_layered surface and that worked fine with alpha (finished that project http://forums.odforce.net/index.php?showtopic=8978 ) I will look again at the clay-material Thanks for your help! Edited April 29, 2009 by borisb2 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.