I’ve been noticing that iClone tends to slow down or even crash when working with bigger scenes or multiple SubD characters, especially when applying motions to several at once. I’m using a high-end PC that handles Unreal scenes much heavier than this without any issues, but iClone’s CPU/GPU usage rarely goes above 40–50%.
Is there any way to make iClone take better advantage of system hardware (RAM, GPU, CPU cores)? Or are there optimization settings I might be missing for larger projects?
Would love to hear how others are handling this, or if Reallusion has plans to improve performance scaling for high-end systems.
I have the same problem as you. From my point of view, my system is already very well equipped (2xTitan RTX, 128GB RAM). But that doesn’t matter to Iclone. It still only addresses one graphics card.
I also think that this is not easy for Reallusion to implement. Programming rendering software is expensive and there are plenty of alternatives. Therefore, I assume that they see themselves more as a supplier for programmes or want to establish themselves as such, which have significantly better rendering programmes. Hence, ultimately, the interface to Blender, Maya, Omnivese and even Unreal.
Therefore, rendering in Iclone will ultimately only be suitable for small scenes. I tested it myself with a 5GB scene. Rendering time in Iclone was 30 minutes, rendering time after exporting the scene from Iclone to Omniverse was 9 minutes.
What you can try is to increase the priority of the programme for the system (Windows). You can do this via the Task Manager. But of course, that doesn’t solve the underlying problem.
There’s a reason I prefer to invest in and use Reallusion’s products and plugins instead of switching to Unreal, Blender, or other free alternatives. Being told to learn and use software I don’t enjoy just to get better rendering results than the software I already support and spend thousands on feels like being told to go across the street to use the neighbor’s oven, when what I really want is a better oven in my own house.
Reallusion has grown a lot — especially with CC5 and the push toward more realistic workflows. At this stage, it feels reasonable to expect stronger native rendering performance from iClone itself, without having to rely on external pipelines.
Of course, I understand it’s not a simple feature to implement — but given how many users prefer to stay entirely within the Reallusion ecosystem, I hope this becomes a real priority.
I agree with you. I would also like to work exclusively within the Reallusion ecosystem. But in my opinion, it simply has too many shortcomings. This starts with simpler things. For example:
- Hair dynamics: as far as I know, I still can’t define a body as a collision object here. I have to go through a cumbersome process involving individual collision shapes. This doesn’t work either.
- Dynamics for liquids are also rather poor.
- No clone objects. I can’t create clone objects, which would significantly reduce the rendering time.
Other programmes are simply much more advanced in this respect and have a corresponding advantage.
They can’t even manage to programme the forum properly. The reply function is still broken for me when I use Microsoft Edge.
1 Like