(download link at the bottom for paid members)Finally got the staining effect working properly for the climax scene.(also update on the liquid material in general)
The liquid sim now paints a custom mask directly onto the model, which lets the texture dry, smear and build up over time instead of just looking static.
I wanted to add dynamic stain textures like this for a long time, but kept running into constant issues with crashes, weird bugs and the textures just refusing to show up correctly at all.
After way too much trial and error, waiting hours for image sequence bakes, rerenders and a lot of frustration, I finally got it working properly without everything breaking.
Honestly, getting this effect to work has been way more painful than it should have been lol.
I am already applying the same setup to the other climax scene right now, and hopefully that one should go a lot faster now that the workflow is finally stable.
Download here:https://mega.nz/folder/IotCGTwZ#d_WILc5bq64HdQB3zA1Dng(liquid still has some slight noise due to lower render settings)