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Found 3 results

  1. Hello, I've got a question because I'm getting stuck on something while figuring out karma: I import a geo from SOP and with a render_geometry_settings node I set it to treat as light with a specific LPE to make it a geo-light, except that when I get to karma to make my aovs and split them by LPE, I realise that Karma only generates AOVs for "classic" lights (dome-light) and none for my geolights - here are two screenshots, if anyone has a solution or ideas I'd love to hear them, as I can't find much online at the moment on the subject of geolight LPE in karma.
  2. Anyone know how to pull a shadow pass using lpe's in mantra? I found this on renderman but the syntax is different lpe:shadows;C[<.D'collector'><.S'collector'>]<L.>
  3. Hey guys, I have a question about rendering and baking AOVs with Mantra. From the extra image planes I managed to render out LPE planes such as beauty, direct diffuse, indirect diffuse, direct glossy reflections, and glossy transmission for a hair groom. They turn out great. The problem is when I try to bake those same image planes from the hair groom onto cards. The LPE image planes come out black. If I try render any of the other image planes like root to tip color, hairID, transparency, diffuse unlit color or any other custom passes, those come out great, but all the LPE passes don't render. I suspect this has to do with the absence of a single camera point, so specular reflections, transmission, and other camera dependent BSDF functions don't produce anything. Is there a way around this? Is there a way I can feed a fake camera/eye point in space to the hair shader and then bake that lighting on a card? In a way to create a static fake incidence angle that references a camera I am not actually rendering through? I am also experiencing problems setting up ambient occlusion to be baked from the hair onto cards, a tip on that would be most wellcome. I am using the bake texture ROP. any feedback would be most appreciated, cheers
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