Karim Joseph writes: Blender 2.93 has a new beam shape spread feature for area lights in cycles. In this quick tip tutorial, we discuss an example of how this can be used to create adjustable window lights.
from BlenderNation https://www.blendernation.com/2021/05/08/window-light-trick-in-blender-2-93-new-area-light-feature/
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