I don’t know how to resolve this problem. Some flags animate as brazil flag while others do not animate. I have searched a lot but I do not know how these flags can be animated smoothly. If the flag is one, animation is not so bad, while after adding some of them, render result became as in photo. Could you please help me?
I have rendered this video by Cycles 500 samples.
This could be caused by a few issues.
Your flag simulations could be slowed down by performance. If your Brazilian flags are using the exact same mesh data-block, they would have higher priority in rendering / physics because they only need to be run once, for all of them. This process is called batching, if you didn’t already know.
Your physic settings may not be the exact same for your other 3, non-Brazilian flags.
Your physic settings may be set to work only for objects in a certain collection.
For instance the Soft Body physic properly:
If none of these solutions seem to help, please share your blend file.
It doesn’t even need to contain your image textures.
