Particles Sometimes missing from render

[wetfusion]

missing particles on renders. im just using the native c4d emitter. below are the pics from 3 frames. frame 504, 505 and 506.
happens a few times already on other scenes. no problems on viewport.
c4d version : 2023.1.2
cuda driver version 12.0
OctaneRender Studio+ 2022.1 (12000020)

frame 504

frame 505

frame 506

[boxfx]

Try baking the c4d particle system. I vaguely remember there can be problems because c4d's particles get recycled when the particle dies.

Otherwise you could try replicating what the particles are doing by using a cloner/matrix in mograph. Or maybe use a mograph cloner to clone onto the particles and just render the cloner geometry so octane never has to see the particle data.

[wetfusion]

here is a simple test

frame 262

263

264

test.mp4

(4.05 MiB) Downloaded 1400 times

here is the test scene project https://we.tl/t-DYj0ccknlb

[wetfusion]

Try baking the c4d particle system. I vaguely remember there can be problems because c4d's particles get recycled when the particle dies.

Otherwise you could try replicating what the particles are doing by using a cloner/matrix in mograph. Or maybe use a mograph cloner to clone onto the particles and just render the cloner geometry so octane never has to see the particle data.

thanks bro. i will try it now

[wetfusion]

i tried as @boxfx suggest.

baking the particle didnt solve the problem.

but putting the emitter as cloner object solve the problem. so its related to how octane reading the emitter particle data?

hope @aoktar can have a look at it and maybe fix it.

[bepeg4d]

Please always use the C4D Particles Emitter as source for a MoGraph Cloner in Render Instance mode.
In this way, also motion blur is supported:

ciao,
Beppe

[aoktar]

Please always use the C4D Particles Emitter as source for a MoGraph Cloner in Render Instance mode.
In this way, also motion blur is supported:

72D10A6A-1CE1-4E90-ABED-84698A5EB48A.jpeg

ciao,
Beppe

Yes as Beppeg say you should use Cloner or particles tab from object tag. Otherwise no stable IDs to track the particles in motion engine.

[wetfusion]

thanks for the reply and advice. for the moment i will use mograph