jumper Posted November 13, 2012 Share Posted November 13, 2012 Hi, I have a scene with a deforming object and an animated camera. I would like to render only the deformation motion blur of the object with no camera motion blur. What is the best way of achieving this? Thanks Stephen Quote Link to comment Share on other sites More sharing options...
Macha Posted November 14, 2012 Share Posted November 14, 2012 (edited) I don't know if there is an easier way, but you can remove the values that a channel takes between integer frame numbers. For example, if you have an animation on channel ry then you can counteract for the interframe values with an expression in a parented null that corrects for the channel like so: chf("../null1/ry",$FF+1)-chf("../null1/ry",$F)*1[/CODE]Your camera will now move in jumps in that channel, from frame to frame, and therefore remove motionblur. You can even blend it in if you change the *1 value in the above expression. Edited November 14, 2012 by Macha Quote Link to comment Share on other sites More sharing options...
oslo Posted November 14, 2012 Share Posted November 14, 2012 Install render parms on the cam - transform samples and set to 0 1 Quote Link to comment Share on other sites More sharing options...
jumper Posted November 22, 2012 Author Share Posted November 22, 2012 (edited) Hey Oslo and Macha, Thanks so much for the help! Stephen Edited November 22, 2012 by jumper Quote Link to comment Share on other sites More sharing options...
jacob clark Posted November 27, 2012 Share Posted November 27, 2012 Install render parms on the cam - transform samples and set to 0 I just want to say, I have wanted to know how to do this for years! Thanks for that, Oslo! -j Quote Link to comment Share on other sites More sharing options...
oslo Posted November 28, 2012 Share Posted November 28, 2012 Welcome, i have the same problems. I just searching parms that i have forever in prman. Quote Link to comment Share on other sites More sharing options...
LukeLetellier Posted March 20, 2017 Share Posted March 20, 2017 How does one do this in H16? I can't seem to find the "Transform samples" parameter to add. Quote Link to comment Share on other sites More sharing options...
rbowden Posted March 20, 2017 Share Posted March 20, 2017 Should just be Xform Time Samples yeah? Render Properties -- Rendering -- Xform Time Samples. 1 Quote Link to comment Share on other sites More sharing options...
LukeLetellier Posted March 21, 2017 Share Posted March 21, 2017 (edited) 3 hours ago, rbowden said: Should just be Xform Time Samples yeah? Render Properties -- Rendering -- Xform Time Samples. Thanks! For those following along, on the camera: Render Properties --> Mantra --> Rendering --> xform_motionsamples Edited March 21, 2017 by LukeLetellier Quote Link to comment Share on other sites More sharing options...
Carl Fairweather Posted June 28, 2017 Share Posted June 28, 2017 I'm doing some custom particle trails (taking into account the camera transforms) to do some more detailed motion blur effects. This means I don't want any blur on the particles (geo or camera). However, I still need the holdout geo to have all of it's normal blurring. Anyone know if this is possible? Essentially, can you have camera blur on one object and not on another? I've tried all of the object specific render parms I can think of but no luck yet. Could just not be doing the right combination of settings. Cheers, Carl. Quote Link to comment Share on other sites More sharing options...
tinyhawkus Posted July 4, 2017 Share Posted July 4, 2017 Yes. Simply add the xform samples render parm to the geo container you don't want blurred, and set to 1. Quote Link to comment Share on other sites More sharing options...
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