Rotating Decals: how to disable tiling?

Development Rendering
, , ,
1

Hello.

I checked the Content Examples demo to see how Decals are being used in decal.umap, especially display no. 1.7 for a rotating decal. For the texture, I created a circular logo that is roughly identical in size to the Unreal Engine 4 symbol displayed in the demo. However, my circle seems to be tiled and shows parts of other circles in the four corners of the Decal actor’s box while rotating. The Unreal Logo, however does not. I see no obvious setting for tiling / untiling in the Material, Texture or Detail of the actor. I simply swapped the UE Logo for mine in the material editor.

What am I doing wrong ?

Regards.

2

Can you post a screenshot of your material setup and the decal? It’s probably an issue with the opacity alpha of your texture.

3

The PNG is to large and the TGA wont show. My best choice for sharing the images is GitHub.

https://github.com/marcthenarc/imgshare

Cheers.

4

I think I know: Hovering over my texture, I see this:
Address X TA_Wrap
Address Y TA_Wrap

This might be because I’m using the Gimp. I’m have a lot of problems with it when I import images into UE4.

5

My Answer:

Depending on the software used for importing (I use the Gimp), the image can automatically be set to TA_Wrap. Right-Click on asset, select Property Matrix. Under X-Axis and Y_Axis Tiling Methods replace TA_Wrap with TA_Clamp just like the Unreal Logo.

6

Oh yeah, looks like you need to set x and y axis tiling method to Clamp. This isnt Gimp related though, it’s just a tiling method that lets you use the textures in different ways like this.