Tessellation : PN triangles

Question

Tessellation : PN triangles

MeinMein opened this issue 9 years ago · 9 comments

Can you set the metaballs material to PN triangles tessellation without artifacts?
For me the vertices are all over the place.

Answer 1 · 2016-04-19T21:05:46.000Z

What do you mean "artifacts"? I can set any texture. But if you need some uv mapping like planar / box you need recalculate all uv data.

Answer 2 · 2016-04-20T11:53:38.000Z

Did you try enabling PN triangles tessellation on the material?
https://docs.unrealengine.com/latest/INT/Resources/ContentExamples/MaterialProperties/1_8/index.html
I don't want to spoil the surprise 😎

Answer 3 · 2016-04-20T18:15:27.000Z

No. i don't play with PN tesselation. Metaballs has "Grid steps" setting for control detail level (like tesselation multilpier).

Answer 4 · 2016-04-20T19:10:13.000Z

I know, but I am trying to use the tessellation to offload part of the computation to the gpu.
As in: generate a low poly mesh and let the gpu smooth it out via PN triangles.

Did it work for you? Or did your triangles also go all over the place?

Answer 5 · 2016-04-20T19:25:12.000Z

MB using procedural mesh generation. I don't do any experements with PN triangles.

Answer 6 · 2016-04-20T19:31:36.000Z

Ok, sorry to ask, but could you try it on your system?
Just pick PN Triangles in the material details tessellation drop-down:
https://answers.unrealengine.com/storage/temp/70544-tess01.png

Answer 7 · 2016-04-20T20:01:54.000Z

Flat tesselation working well. Currently i dont know how to fix issue with PN tesselation

Answer 8 · 2016-04-21T16:13:37.000Z

Thanks, good to know the problem also exists on other systems.
I'll see whether I can fix it.

Answer 9 · 2016-04-21T16:14:54.000Z

Thanks. It would be nice if you can fix this issue.