Noah Hähnel


About Me



Recent Forum Posts

Strange Shadow on Render April 2, 2021, 6:04 p.m.

To me, this doesn't really look like a shadow, more like artifacts from the model. In Mantra, you can enable some different AOVS in the Extra Image Planes Tab to see where this is coming from if this is connected to shadows/rendering. Otherwise, I would take a deeper look at the model and textures that came with it. I've experienced cases where textures/geo would break after adding subdivision because the model wasn't set up properly.

Karma cannot render propeller motion blur March 30, 2021, 11:19 a.m.

Thanks again for the answer. I actually figured it out and it makes sense, it's simply different from Mantra.
The happens when there is no prior or next time sample. For example, when you're on frame 1 and there is no frame 0. So of course there is no motion and no motion blur.
The cache node caused some (non-reproducable) crashes for me which is why it took me so long to figure out.

Karma cannot render propeller motion blur March 30, 2021, 7:49 a.m.

Thanks for the answer. Maybe I'm talking about something different. I was actually dealing with this:

I set GeoTimesamples to 3 but my model is completely crisp inside the motion blur. I am using the cache node and the blur only works if I cache at least three frames, but shouldn't that actually use 3 subframes? I'm sure there is something I haven't set up correctly but I can't find what's wrong.