Hey
Very occasionally I need to montage a building on a background image. 99% of the time this is just a simple comp in photoshop as usual. Say however you wanted an exact background image to be reflected in the scene geometry (poolwater, shiny floors etc). If I put the backplate bitmap in the background as a screen environment with a GI override for the skylight - I get the result attached:
The teapot has a simple white material with no refraction or opacity, and yet you can see the background through it in the shadow areas. Why is this? I can kind of understand how the reflection of the background bitmap on the blue plane would not work, as it is an arbitrary flat screen environment. Is there a way of achieving this without putting the backplate on a literal plane in the scene? BTW the blue water plane in this image has no refraction turned on either, and yet the background shows through it.
Cheers
Very occasionally I need to montage a building on a background image. 99% of the time this is just a simple comp in photoshop as usual. Say however you wanted an exact background image to be reflected in the scene geometry (poolwater, shiny floors etc). If I put the backplate bitmap in the background as a screen environment with a GI override for the skylight - I get the result attached:
The teapot has a simple white material with no refraction or opacity, and yet you can see the background through it in the shadow areas. Why is this? I can kind of understand how the reflection of the background bitmap on the blue plane would not work, as it is an arbitrary flat screen environment. Is there a way of achieving this without putting the backplate on a literal plane in the scene? BTW the blue water plane in this image has no refraction turned on either, and yet the background shows through it.
Cheers
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