Here’s a link to an .mov of the problem: Plant Popping .mov
Howdy. First, the plants in our foreground keep popping off before they’re quite out of frame. Can anyone tell me how to fix that? The island demo doesn’t do it, so it seems likely that we just have a setting incorrect, but we can’t seem to figure out what it is.
Second, the patches of grass don’t rotate about their center. They seem to rate from the edges–or at least somewhere off-center. Any fix to this?
Note: The floating problems have been addressed in other threads–although that problem is still also without a solution.
Thanks!
Ben
[sigh]
Well, at this point we’ve had to go ahead and just write our own grass script to fix these two issues, but it requires manual placement, so a genuine fix or response from Unity would really be nice.
Its a two sides issue:
- From what I see the effect you see there is caused by your clumping design.
Grass is removed from rendering when its ground point is no longer in view, thats commonly no problem as the “range based grass” rendering is targeted at dense grass fields.
If you ensure that you have more than only a handfull of blades of grass in a place, you will see how the front most go away but it becomes invisible as there is still grass behind as in reality.
- Unity actually should check all 4 corners of a virtual detail quad for beeing in view and only remove it if all 4 are out of view. But there might potentially be a setting taking care of.
I’ve myself never seen such drastic cases
Does this happen if you uncheck the Billboard setting on the grass? What about making a custom grass cross-hatch mesh in your 3d app and using that as a detail mesh instead?
I wish I had a concrete reason for why this is happening… I’ll make sure to bring it up tomorrow with some of the UT devs.
If I turn off billboarding, then they DO stop popping. Of course, that leaves you with very 2D grass.
Does that help us stop the problem with the Banana Plants popping? Right now that’s my most pressing problem.
The crosshatch plan is a good idea. For now our custom billboarding solution is an ok workaround.
One tidbit that might be helpful is that if I paint thick grass, I can’t really see that any grass is popping off early. Perhaps some are, but enough are staying that I can’t tell.
I also wonder if perhaps we have some setting that’s wrong. We’re trying to max everything out to turn off the popping, but perhaps we’re messing it up somehow. I’ll attach a photo of our settings.
