koobas.hobune.stream
Projector stops working on Terrain with "Draw Instanced" enabled
So I've noticed that Projector doesn't doesn't work on terrain when "Draw Instanced" is enabled (2018.3 feature).
I'd really like to use GPU instancing since it's a huge performance boost but projector is also an important component I'm utilizing here.
Is it not possible to use projector with instancing enabled or is this a bug? if not, how can I make the projector work on terrain?
I've noticed the same thing. Thanks for posting this to the Answers section. I just posted the exact same question in the World Building Forum.
link text Hopefully someone with knowledge on projectors and GPU Instancing will respond.
Not fixed in 2020 with new Terrain tools.
I was just trying out projectors for an idea I had.. but found this same issue. I also noted that when switched off the projection was inconsistent across the terrain and looked bloody awful. It did not stay within the frustum and if I quote the documentation "just like a real world projector" IT was far from being that!
So I'm probably going to use a second camera, some sprites, raycast to place on terrain and careful layering and depth setup so it's always rendered above the terrain to give the same effect. Just with more consistency and I can still use Draw Instanced on terrain.
I really hope they fix this soon. I use decals for explosion marks on the ground and would love to use the new instancing to enhance performance.
I did some more research and experimentation and ended up using decals as described here:
blogs.unity3d.com/2015/02/06/extending-unity-5-rendering-pipeline-command-buffers/
With careful placement, just above the terrain it works for my situation. It fails over water, but that was sort of expected. To get around this I use a flat sprite over water. It works perfectly well with instanced terrain too.
I'm also tempted to use it for adding in more details to the scene, performance seems very good. There was a very good Decal asset on the store, but seems he pulled it prematurely upon seeing HDR pipelines has decals as standard.
But the pipelines are not mature enough yet in my $$anonymous$$d, so not an option for a long while yet.
Same here, found out this issue. a fix would be real nice.
Any news on that one? Is there a way to put a projector now on a terrain with "instanced" checked?
I strongly suggest using Decals, they are very good performance. They are so versatile in how they can be used. Depending on pipeline you are using. HDRP has them built in, for LWRP / URP you could either create one or lookup on asset store. Standard pipe I mention in comments above.
If like me you have purchased an effects pack from $$anonymous$$ripto (https://assetstore.unity.com/publishers/5224) he's written a Decal shader which works on all pipelines! it was a nice surprise when I spotted this in the pack. It is really well written and has some good features.
$$anonymous$$ost importantly all the decals I have tested work on instanced terrain!
