hey everyone! really hope you can help. what do you think can cause this problem with these bumpy triangular polygons? same result in render. i smooth the mesh by smooth Gaussian in filtering (screenshot below). i tryed defferent particle separation, didn't help…https://sun9-64.userapi.com/Yi6FP3wFNIR4wc9Z7Sm4dacQbdDLwQJyckU9Iw/rOSEc_NkNGg.jpg [sun9-64.userapi.com]

Try choosing a different value for the Adaptivity field on the ParticleFluidSurface node. Or set it to zero. Maybe tweak the isooffset negative just a touch..?

Enivob
Try choosing a different value for the Adaptivity field on the ParticleFluidSurface node. Or set it to zero. Maybe tweak the isooffset negative just a touch..?

yeah, decreasing the adaptivity was a solution, thank you man!

Try sampling the normal from the gradient of the sdf used to build the surface.