LIVE-2 SURFACE ALIGNED PARTICLES GLITCH

Set TopicsSET TOPICSep 17, 2026Original source

Sometimes, surface aligned particles are being obscured by the underlying surface. Here is why:
Particles are displaced using sim pressure. BUT, we also add material defined TILEMAP to surface height, so the final surface is “pressure + tilemap”. We also kill tilemap close to the camera… but the further away, tha larger the discrepancy between the surface height “particles know about” / and what actually is. At these places, culling might happen: the water geo is higher than the particles and cuts/obscures them.

Workaround:

offset particles higher
set the “kill tilemap by distance” to a larger value in the output material