Matt Tillman
pixelninja
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I don’t want motion blur in render but i need it as a pass? 2024年12月2日19:30
I haven't used it myself but there should be a "disable image blur" parameter in the karma render settings.
Check the end of this thread:
https://www.sidefx.com/forum/topic/82845/?page=2 [www.sidefx.com]
Check the end of this thread:
https://www.sidefx.com/forum/topic/82845/?page=2 [www.sidefx.com]
Motion Blur LOP samples from USD filecache 2024年11月30日13:54
Using a cache and setting the shutter time should be equivalent as far as I understand.
You can always dive inside the motion blur lop and see exactly what it's doing.
I'm intrigued as to why the motion blur isn't working when you cache to disk though.
Is it an issue of not saving enough time samples?
Usually for particles you would render with velocity blur, in which case you don't need to worry about time samples as long as you have velocity on your points.
You can always dive inside the motion blur lop and see exactly what it's doing.
I'm intrigued as to why the motion blur isn't working when you cache to disk though.
Is it an issue of not saving enough time samples?
Usually for particles you would render with velocity blur, in which case you don't need to worry about time samples as long as you have velocity on your points.
How to set the camera focus distance using expression? 2024年11月29日0:36
For completeness here's the vex for the planar distance between a camera prim and a focus prim with a variable to control which input the focus prim is sourced from.
string cam_path = chs('camera_primitive'); string focus_path = chs('focus_primitive'); int focus_source = chi('focus_source'); matrix cameraTransform = usd_worldtransform(0, cam_path); matrix focusTransform = usd_worldtransform(focus_source, focus_path); vector focus_p = cracktransform(0,0,0,{0,0,0},focusTransform); focus_p *= invert(cameraTransform); usd_setattrib(0,cam_path, "focusDistance", max(-focus_p.z, 0));