OK.
My bad :
Do not run simulation with instances inside cloner (even regular instances)
DO not cache Mograph Cloner, as the Mograph cache doesn't work, at least here (switches material/object from a frame to another)
Bake external / alembic on a new clear folder
The Alembic wont keep materials so we cannot re-import the alembic file (for like tweaking one "particle) like we used to.

Hope this help someone else…

Keeping on it a bit and switching back to r18 if cannot do it within 2025…

Cheers

Hello
Very simple mographed spheres along a spline with animated offset. Rigid body so they don't intersect; Some simple colliders. Ultra basic. . BUT ! Need to render on an extrnal farm. I don't understand how the new cache system is supoosed to work. If I cache internal, then playback within c4d or render a playblast (viewport rendeirng), nothing occurs as it should.
If I cache to alembic, same issue. If I cache mograph cloners, it dosn't use the rigid body cache…

Noticed that if I re-import the .abc files all the sphere moves correctly. But without texture, for 1000 object I won't have time and courage to re-assign them.

Question is : would you have link to a serious tutorial, or any tips to use the "new" cache system please ?

Hope someone passes around

Cheers !

Thanks. Good to know
Cheers

Planar Projection I'd guess ?

Hello
Cryptomatte ?

OK, found the answer here:
https://support.maxon.net/hc/en-us/articles/10816546845468-Choose-default-startup-Scene-for-Cinema-4D-2024-1-onwards

Hello
Is it me or the "new.c4d" startup doc was killed in c4d 2025 ?
If so, how can we have a startup doc preset now ?
Thank you

OK, after some testing, I get way better result after deleting ALL redshift tags and X-presso and everything not necessary onto a new scene. Sounds like working now.
Sorry for the panic message.

Hello.
I used BP a lot like 10 years or more ago.
Lastly I mostly used Zbrush polypaint, or Substance3D painter.

I Tried today to paint directly within BP, but it's acting very weird. The geometry is 10K polys, the texture 4K with 2 layers. It used to be a lot, but today it's pretty low.
Whenever I try to paint, BP takes like ages to compute one simple stroke, or the second stroke doesn't work, have to paint on texture 2d to re-activate 3d painting. Projection mapping doesn't work at all. Messages stating projection mapping is computing appear, but nothing really complete.

Wondering if i missed some new way to do things.

I'm under c4d 2024.5.1, OS-X 14.5, mac studio M1, Apple Display.

Thank for any advices.