HDRI dome light ignoring opacity map

[dean_dmoo]

I'm currently doing a scene based in NYC with a skyline image placed on a sphere. (Based on The Boundary scene 3 model). However I noticed a weird bug/problem where the vraydomelight with hdri ignores the opacity map on the sphere. If I turn off refraction/reflection in the object properties then that fixes the opacity, however then my reflections/refractions are screwed as they only show the hdri reflection (i.e. a black groundplane and sky). Using a vraysun/sky doesn't give any issues and works as expected.

Below a downloadlink to a stripped scene with some generic/free maps to replace the copyright stuff.

https://dmoo.wetransfer.com/download...4194724/a6e27d


You can just turn the hdri or sun on/off to see the effect.

Am I missing a setting in the hdri or is this a bug?

3dsmax 2016
win10
vray next 4.02.04

[gkolln]

We are having the same issue but we have a vray light material on a plane - same issue that you cant see the dome where the alpha is on the plane. This was updating an old scene that worked before. We are on Vray next.

[dean_dmoo]

In my older scenes (pre next) I've haven't come across this issue either.

Hopefully its just a new setting to switch somewhere. *fingers crossed*

[dean_dmoo]

yavor.rubenov

Hi Yavor,

Any insights on the above issue? Thanks!

[yavor.rubenov]

Hello,

What if you turn ON the "Cast Shadows" option of the sphere ?

Best regards,
Yavor

[dean_dmoo]

Hi,

That helps thanks! One step further, however now I can still see the outline of the geometry, but the map is full white / black. Its visible in both the vraysun and hdri versions. An option would be to just leave the sphere complete.

[yavor.rubenov]

Seems to be fixed if I turn On the "Multiply color by opacity" option in the light material

[dean_dmoo]

Ah ok, thanks!