Generating Custom IBL by Replacing Source Image
By default, a new scene will be applied with IBL and Sky with a same source image.
The Ambient Light is set to black as well.
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Turn off all the lights and hide the sky so the IBL is
the only light source.
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In the Visual Settings panel (Shortcut: F7), switch to the Atmosphere tab
and scroll to the Image Based Lighting section.
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Replace the original IBL image by double-clicking on the original image
and load a designed one to generate a new IBL.
In the illustration, the gradient orange color starts from the top
of the image, which implies the direction of the light.Note:
The compatible image formats are *.hdr and *.exr.
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Replace IBL with different images and observe the
results.Note:
You are able to set the texture and transformation of the sky dome to be the same as the one for IBL to make a consistent environment. Please refer to the IBL and Sky section for more information.