Hi,
I have a 3d store I am putting into unreal. I started lighting it and I am now trying to set up the reflections. The front of the store i mostly glass and when i set up a few sphere reflections on the inside and outside it seems to be getting confused on which side to reflect. Like the interior will reflect the interior but the exterior will also reflect the interior or vice versa.
Is there a good way to set up reflections when you will be looking at both sides of a window?
I’ve not played much with reflection in UE4 but i’ve done this often in 3D modeling programs. If you are using a single plane as your glass, you may need to duplicate that plane (and invert the normals) so that reflections occur on both sides of the window. In 3D, plane faces actually have a side that is outward facing and inward facing according to it’s vertex winding (clockwise or counter clockwise also seen as the plane normal). Your glass may only be reflecting on the outside because UE thinks the inside is “invisible” to such calculations.
You may also want to check (I think there is a flag) to have the material of the plan be two sided… that may work.
ha yeah, i probably should have been more descriptive. There are are two planes for the interior and exterior (both one sided and facing their proper directions).
Since I am trying to encompass the inside of the store and the windows the reflection sphere bounds will have to go through the window into the outside, so i have a feeling that it is influencing the outside window from the interior reflection sphere.
I had meant to respond to this again but got caught up. Try using a box reflection capture. According to the documentation it will only capture reflections within the box volume which may be more what you are looking for.