Open maggieholbling opened 3 years ago
Related: https://github.com/KhronosGroup/glTF/issues/1475
KHR_lights_punctual
is feature-complete, for the purposes of the glTF 2.0 specification, and restricted to simpler punctual lighting. But area lights could be considered as part of a future extension. Understanding which properties of area lights already have consistency across engines and authoring tools (Blender/Maya/3DS Max) might help that process, if anyone would like to research it.
@maggieholbling, Adobe would definitely be interested in supporting an area light extension. I'll be looking at defining one later this year, I think, as we'll have need of it. If you want to get the ball rolling by writing a draft EXT (multi-vendor) extension, I can take a peek and give feedback.
@MiiBond I would love to see an area light extension as well (definitely rectangle and line lights at least).
@maggieholbling This extension would not be the right place since rectangular lights are by definition not punctual lights.
I'll rename this issue as a proposal for KHR_lights_area
. 👍
Could we close this and/or continue the discussion here: https://github.com/KhronosGroup/glTF/pull/1948
Could a rectangle type be added to the KHR_lights_punctual extension? Seeing as Unity, Unreal and Blender support rectangular area lights?
Unity: https://docs.unity3d.com/Manual/Lighting.html Unreal: https://docs.unrealengine.com/en-US/BuildingWorlds/LightingAndShadows/LightTypes/RectLights/index.html Blender: https://docs.blender.org/manual/en/latest/render/lights/light_object.html
If not, is there a workaround around this?