Div Posted September 12, 2007 Share Posted September 12, 2007 Hi, I'm trying to do Miguel Perez Meteor Tutorial ( http://www.miguelperezsenent.com/tut_meteor.html ); and I have a problem : my particles doesn't render correctly : They seems be blank quads instead of nice sprites... I've done and re-done the tutorial but i always got the same problem. Because I am new to houdini it can be just a wrong parameter somewhere which isn't explain in the tutorial, but needed to render particles.... If someone can help me Thanks Cheers, Nico Quote Link to comment Share on other sites More sharing options...
michael Posted September 12, 2007 Share Posted September 12, 2007 post your hipnc file so we can see what the issue is. Quote Link to comment Share on other sites More sharing options...
MIguel P Posted September 12, 2007 Share Posted September 12, 2007 Yes put the file. I suppose you are doing the tutorial in Houdini 8, aren't you? Because the way of rendering sprites has changed in H9. Quote Link to comment Share on other sites More sharing options...
Div Posted September 13, 2007 Author Share Posted September 13, 2007 Yes, i have the version 8.1... And here is the file Thanks for your quick answers Meteor_Tuto2.hip Quote Link to comment Share on other sites More sharing options...
MIguel P Posted September 13, 2007 Share Posted September 13, 2007 Well, is very simple If you go to your VOP network you see that the error es in the node Multiply1. When you multiply floats and vectors together you have to put the vectors first. And of course, the result will be a vector that you have to connect to the Of (Opacity) output, not alpha. And another error you have. The color attribute name is Cd, not cd. So if in your vopnet and your procedural window in OBJ you write cd, won't be color change. I attach you the file with the corrections. Meteor_Tuto2.hip Quote Link to comment Share on other sites More sharing options...
Div Posted September 13, 2007 Author Share Posted September 13, 2007 Thanks a lot!!! Quote Link to comment Share on other sites More sharing options...
creandofx Posted December 14, 2007 Share Posted December 14, 2007 about this tutorial, how can i render the sprites with the new houdini 9?, i try to find the solution in the help files but i can Quote Link to comment Share on other sites More sharing options...
farhan Posted January 2, 2008 Share Posted January 2, 2008 Is there a tutorial on rendering sprites for H9 somewhere I need to figure this out too? I remember in H8 it was fairly long-winded I hope there's a simple way to do it in H9. about this tutorial, how can i render the sprites with the new houdini 9?, i try to find the solution in the help files but i can Quote Link to comment Share on other sites More sharing options...
MIguel P Posted January 2, 2008 Share Posted January 2, 2008 Is there a tutorial on rendering sprites for H9 somewhere I need to figure this out too? I remember in H8 it was fairly long-winded I hope there's a simple way to do it in H9. If you search for "sprites" in the forum browser I think you'll find the answer. Or you can look at the whispy smoke shelf tool. Quote Link to comment Share on other sites More sharing options...
Netvudu Posted January 3, 2008 Share Posted January 3, 2008 (edited) [quote name='MIguel P Edited January 3, 2008 by Netvudu Quote Link to comment Share on other sites More sharing options...
MIguel P Posted January 3, 2008 Share Posted January 3, 2008 Yes, sorry, I meant the contrail tool. Quote Link to comment Share on other sites More sharing options...
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