Can't use World-Aligned UVs in Dbuffer Decals

Nobleyad · May 16, 2017, 2:35am

For context I have a Road mesh and I’m adding world-aligned noise to road lines to multiply into the mask.

Sounds pretty simple but I couldn’t get the World-Aligned UVs working on the DBuffer Deferred Decal, despite having worked in Opaque with Opacity Masking. I ran WorldPosition-XY to Basecolor to demonstrate the issue.

Material Domain: Deferred Decal, Blend Mode: Translucent, Decal Blend Mode: DBuffer Translucent Color, Normal
Material Domain: Surface, Blend Mode: Masked, Decal Blend Mode: N/A

http://i.imgur.com/WnaHIzM.png

http://i.imgur.com/gce5zRD.png

Curious to know why I’m unable to use UVs in this way.

RyanB · May 18, 2017, 4:23pm

This bug was discovered and fixed internally recently. I believe it is fixed in 4.16 preview.

Nobleyad · May 18, 2017, 9:34pm

Thanks Ryan!

anonymous_user_53982b391 · June 23, 2018, 9:47pm

I still am having an issue with this. I can consistently get world aligned to work for Z, like in the example for roads, but for XY world aligned texture / normal still does not work in deferred decals. I’m using 4.19

anonymous_user_53982b391 · June 23, 2018, 9:53pm

I think this is an issue with Vertex Normal WS in Deferred Decals which consistently produces a Z-Up result no matter the orientation of the surface the decal is projecting on.