Forum: Virtual World Dynamics


Subject: Tutorials for VWD

VirtualWorldDynamics opened this issue on Jan 05, 2020 ยท 7 posts


zanth77 posted Mon, 06 January 2020 at 6:46 PM

Thanks!

I wouldn't call them errors, just scenarios that folks might want to handle. For example, I just ran a sim where Gen8 figure went from default to sitting pose in 60 frames. In VWD, I managed to fix the 'cloth bunching' issue by nailing the top half of the dress to collision object so it followed the figure during the sim.

I also turned on self-collision which fixed most of the self-collision issues but still left a few areas which appear in Daz Texture Shaded mode as black (see screen shot). This may or may not impact rendering (depends on the shader). The fix in this example would've been to use Shift-Mouse-Left-Click to pull the cloth out of itself. However perhaps there are params I could've adjusted better to make the self-collision detection more stringent?

A third problem I had (and often have) in this example is too much stretch. I always turn off inertia/grav and press SHIFT for a few seconds at the beginning to handle the initial puff-out of the cloth (thanks for this tip btw!). However, the cloth tends to get about 5% bigger. I usually remedy by scaling the cloth to 95% but perhaps I should try playing with stretch/softness for selected areas instead? I don't mind the 5% growth in the lower part of the dress, but up around the chest (in this example), I prefer it to hug the body as it did before sim. Fixed verts option is perfect if the sim isn't dynamic, but the option is of course unusable if it is dynamic. Nail to collision works great but still get 5% loosening. Now that I think about it, once I learn the advanced rigidify techniques, it may resolve this issue too for me (assuming it plays nice with nailing to collision). Otherwise, learning the difference between scaling to 95% and altering stretch/softness as possible methods to solve this example (or when you'd use one or the other or both to solve various situations) would be helpful.

Collision1.jpg