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+--- Thread: Problems with Physics with terrains (/thread-193.html)
Problems with Physics with terrains - LandscpePerform - 12-10-2017
Hi,
I am building a custom terrain editor in-game and we are using obi fluid to demonstrate water.
When a fluid particle hits a sheer cliff made with a terrain, the speed gets multiplied and bounces back relative to the height of the heightmap at that point and the normal, this causes a shotgun effect and sends particles flying across the scene at a very high speed. The taller and sharper the cliff side, the faster they go.
If you happen to have a sharp drop ditch, they just bounce each off the walls and get even faster.
I believe I have a workaround by lowing the Collision Constraint SOR Factor to a very low number and limiting the height of the heightmap, so I dont think it is a big issue for me right now, but this is limiting when you give a user access to the terrain tools in-game.
Here's a video that shows the issue.
Frank
RE: Problems with Physics with terrains - josemendez - 13-10-2017
(12-10-2017, 07:09 PM)LandscpePerform Wrote: Hi,
I am building a custom terrain editor in-game and we are using obi fluid to demonstrate water.
When a fluid particle hits a sheer cliff made with a terrain, the speed gets multiplied and bounces back relative to the height of the heightmap at that point and the normal, this causes a shotgun effect and sends particles flying across the scene at a very high speed. The taller and sharper the cliff side, the faster they go.
If you happen to have a sharp drop ditch, they just bounce each off the walls and get even faster.
I believe I have a workaround by lowing the Collision Constraint SOR Factor to a very low number and limiting the height of the heightmap, so I dont think it is a big issue for me right now, but this is limiting when you give a user access to the terrain tools in-game.
Here's a video that shows the issue.
Frank
Hi Frank!
Thanks for finding and reporting this. Will take a look at it (really looks like a vector normalization issue). As soon as we get a patch I´ll send it to you.
cheers,