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Hi,
We bumped into another issue with the vray scene exports. For some reason, when we use "*" in the "Force Lights" we get a dramaticaly diferent export time compared to when we filter the lights in the "Force Lights" field, and the strage part is that using just "*" (using more lights) makes it dramaticaly faster.
We had a very large production shot taking over 17h to generate the vrayscene on a 355 frame sequence, using "*" in the "Force Lights" takes 6 seconds to generate each frame, and when changed to all the correct light filtering it takes 3 minutes per frame. Is this the exporter or Houdini itself?
Check this example;
Couple hundred lights copied around a couple groups and all linked to an animated null.
Two V-Ray ROPs, one set to "lgt_*" and another to "*" in the "Force Lights" object field (they both render the same exact number of lights).
The resulting .vrscene files are exacly the same size, no extra data was written. But case_1 took 3:41 to complete and case_2 took 0:54 over a 200 frames sequence.
Test scenes attached.
Best,
David.
We bumped into another issue with the vray scene exports. For some reason, when we use "*" in the "Force Lights" we get a dramaticaly diferent export time compared to when we filter the lights in the "Force Lights" field, and the strage part is that using just "*" (using more lights) makes it dramaticaly faster.
We had a very large production shot taking over 17h to generate the vrayscene on a 355 frame sequence, using "*" in the "Force Lights" takes 6 seconds to generate each frame, and when changed to all the correct light filtering it takes 3 minutes per frame. Is this the exporter or Houdini itself?
Check this example;
Couple hundred lights copied around a couple groups and all linked to an animated null.
Two V-Ray ROPs, one set to "lgt_*" and another to "*" in the "Force Lights" object field (they both render the same exact number of lights).
The resulting .vrscene files are exacly the same size, no extra data was written. But case_1 took 3:41 to complete and case_2 took 0:54 over a 200 frames sequence.
Test scenes attached.
Best,
David.
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