decal with transparency on transparent surface

[fendi]

is it somehow possible to put decal with alpha on a mesh with transparent material? mine goes always black. i have partially solved it with putting the decal to emissive instead diffuse, but that kind of decals dont accept lights changes, or?

[Jacky]

Can you show us your material setup and a screenshot of the problem?

[fendi]

ok, hope this helps

decal material


mesh prop


this is how it looks

[3DAlex]

change renderSortPriority on Decal actor.

[fendi]

that does not help. still black decal

[3DAlex]

can you post here test scene with the door and decal?

[fendi]

I found out something. when I change pointlight to dominantpointlight, everything looks ok now.
As you can see, decal on bsp mesh is OK in both cases. is this info helpful?

[ambershee]

I'm guessing that the decal is not receiving any light, because the surface it has been applied to also does not receive light (an unlit surface would not have valid lightmaps)?

[fendi]

how to check if the lightmaps are valid? iwe made them via material editor > layout using 0 channel

[ambershee]

The most obvious thing to do is to use the lighting only view mode.

I'm not sure using a decal is the best way of applying this anyway - why not use a plane mesh?

[fendi]

this is lighting only. i dont understand it quite good yet, but my noob guess is that the door accept light. or what should i look at?
i dont know anything about plane mesh yet also , but will it bend around rough or curved mesh like projection?