OTOY Forums

Hello
I have a geo in my scene that copy's a polygon sphere to points created by a pop net.
When i render in the IPR all is fine and it updates and show ups as i scrub the time line.
However when i come to render, if i use update scene mode, then nothing shows. If i use full scene reload then it works.
Is that how it should be?
(By the way, the pop nets points dont existing on the first frame)

Also... i think this is unrelated. When rendering the volume im getting a
*** OCTANE API MSG: cannot import a regular grid from an empty voxel buffer.
Any ideas? seem to render but does randomly crash

The main problem can be the lack of particles in the first frame. If the plugin finds an empty object, it discards this object from the extraction list, so later it can't be updated. You could try to add a dummy point in the object to have always at least one particle and avoid this limitation.

About your second question, it could be great to have an example scene with this issue to take a look at it here. Probably there is indeed a grid without any voxel in the volume, but in any case, the rendering should not crash.

Thanks,
-Juanjo

Thanks for the quick responce - Ill just try what you say about adding a sample point on frame 1 so i can use update scene and see if that cures the crashing.

If not do you have an email i can send you the scene to take a quick look at re the voxel question? im not that experianced with volume rendering with octane so probably something im not doing correctly

You can send the scene or the link to download it using a personal message in this same forum.

Thanks,
-Juanjo

Morning - I did send you the file yesterday, but i also ran the render overnight and no crash! hurrah
I did clear out a lot of test geos/nodes to send over so i guess it was maybe somthing in those and/or the full scene reload causing the issue.
Having the placeholder point from frame 1 solved the issue that was forcing me to use full scene reload.
Thank you!