First, A big applause for the new release especially you Karba for the max integration.
To understand it even better. I'd like to ask about the motion blur duration in Render Settings.
At first I' wasn't sure if it's octane core bug or max plugin bug. I tested even more I can see that issue is max plugin only. Standalone works as should be.
EDIT: Problem does exist in Standalone as well. In order to see the problem you should increase shutter interval so high, say above 50, but in max this problem occurs in lower values
Below you can see two example scenes.
One is a car animation still to test motion blur. Other is a light trail effect.
The scene is done in Max plugin.
The car scene is based on real world units. I managed to calculate the rotation speed of the wheel in a real world scenario. Here the car drives around 80km/hr.
I rendered the car with different motion blur duration. Compared the motion blur with real-life car photographs with shot with low shutter speed.
The problem here is the wheel gets scaled due to motion blur. and with even higher motion blur durations, the wheel turns in to a box shape.
To test this problem further I created a simplest scene to mimic car taillight trail effect on a empty scene. Also this scene is based on real life units. Assume the dark spline as the road.
red as the tail lights. Here is a simulation of a car driving a 2km road. with a speed that it covers 2km road in 1 minute.
I'd liked to see the trail all the way long, or say 100 meters or trail length.
The problem starts again when increasing the motion blur duration.
So that didn't work either. If I increase the MBduration the trails does not obey that road/path.
I guess this is a calculation problem.
I tested further more. I checked if my scenes's fps was wrong or the animation duration were wrong. Double checked but alas. If I change the animation, (tried shortening it or tried to set animation frames to double or even triple. The result doesnt change.
I also tried to increase the fstop in Imager dialog. But that doesn't interact with the motion blur. To my understanding. Camera Fstop does not work accordingly with the motion blur.
So the problem is current motion blur calculation gets messed up when exagerated.
All I care about is to see a perfectly rotating Car wheels with decent motion blur. I'm sure it wont be noticed in animation renderings but I really care for still renders.
I tried export the scene to standalone 2.0. it worked great. Increasing the shutter interval did the trick and it worked great.
So the question is is shutter interval and motion blur duration are the same or not.
Please implement or correct this.
Thanks,