Hello guys,
so I’m working on this animation and at a certain point on it, I need this middle L-shaped cyclorama to fall from the top, as its support broke and the “cloth” itself falls onto the stage.
I’ve tried adding it a cloth modifier, but it works strangely as I don’t know which settings I have to toggle on.
The cyclorama is L-shaped so it goes from the ceiling to the audience, but I’ve sliced it into two parts (floor and wall) because I assumed that if I applied the cloth simulation to the whole, this, would be affected and I only want the wall part. I don’t know if there’s an option to restrict the simulation to only one part of the mesh.
The stage which is composed of the 3 walls and floor, it’s a one-mesh that has a passive rigid body.
Any help would be truly appreciated as I believe it’s a simple task but I’ve never worked before with cloth simulations so I don’t know where to begin.
Cloth likes all faces to be roughly the same size… so the long rectangle quads at the base will cause issues…
The bottom faces need to be square quads like so:
Try presets first:
see how they work then tweak once you have something close to what you want.
(Also: stage doesn’t need to be a rigid body - setting it to a Collision shape should be enough… and, only ever run the sim in Object mode - Edit mode does funky stuff. Do a slight Transform → randomize to make things seem more natural)
Thanks!
Btw, the faces at the bottom look like that because the plane was initially a 90º angle and then applied a bevel to the edge so it’d have the rounded crease.
Just tried your explanation and everything works fine minus the collision against the stage which I cannot seem to find the right tweaks at parameters. I’ve set on a collection the main cyclorama and its floor part.
And on a second collection I’ve set a floor, which would be the stage’s floor. Under Cloth’s Collisions tab I’ve turnt on “object collisions”, selected the 2nd one and it goes past through it instead of going against.
Did you set a collision for the Floor Plane? It has to have one…and also set for the cloth object like you set already.
Back to how to control the cloth sim…keeping the cloth on the floor and allowing the rest to fall. Use weight paint. Set the weight to 1.0 and paint all the areas you don’t want the cloth sim to affect. Set it for zero, for the areas you want to fall… should look something like this …
The gradient area at the 90 turn will also control the cloth sim so that the sim will be none on Red areas…and as it transitions to Blue it will be more like cloth…
