Mcronin Posted April 10, 2003 Share Posted April 10, 2003 So I'm trying to apply stuff from these various Renderman books I have to VOPs. Now I've come to the point where I need to create a custom lighting model. anyone have a clue how to do this? I'm running into all sorts of confusion mainly due to the lack of VEX/VOPs documentation. First thing's first. ambient()... Renderman has this function, VEX has this function, they both do the same thing, there's a description of ambient() in Advanced Renderman and the RI Spec so I know what it does, but I can't find a prototype for it anywhere. I just need to know exactly what's going on inside of ambient() for my own sanity. Is ambient() and other functions outlined with protoypes in the Houdini Docs anywhere? I can't seem to find it. If worse comes to worse, maybe it's in a script or a library somewhere with hopefully some comments and someone can point me to it? OK, assuming I chose to ignore the man behind the ambient() curtain, and continue, what's the prefered method for creating a lighting model? I'm thinking of using an Inline VOP and just writing the lighting model out in VEX. Would this be a prefered solution? Or is there something I'm missing? There is no VOP that functions as ambient that I have run across, and the Lighting Model VOP doesn't seem to have exactly the model I'm after. Thanks in advance Quote Link to comment Share on other sites More sharing options...
edward Posted April 10, 2003 Share Posted April 10, 2003 I think there's prototypes for everything in $HFS/houdini/vex/html This link may also help if you haven't looked at it yet: http://www.exa-corp.co.jp/houdini/vex/ Quote Link to comment Share on other sites More sharing options...
edward Posted April 10, 2003 Share Posted April 10, 2003 In Houdini 6, it's the fourth item down under the Quick Reference section in the new html help. (titled VEX Reference) Quote Link to comment Share on other sites More sharing options...
Mcronin Posted April 10, 2003 Author Share Posted April 10, 2003 What? How long has that been there? I was digging through the PDf's because I thought they were more the "complete" refererence! Thanks again Edward. Quote Link to comment Share on other sites More sharing options...
Wolfwood Posted April 16, 2003 Share Posted April 16, 2003 This was brought up on 3DBuzz so I thought I would link the simple Lambert (diffuse) illumination example I did. Thanks MCronin for point out this thread. hipnc jim. Quote Link to comment Share on other sites More sharing options...
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