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Document visibility AABB caveats with decals, reflection probes and lights

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This is required in rendering methods that don't use clustering
to check which meshes should be affected by decals, reflection probes
and lights.
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Hugo Locurcio 2023-02-03 12:08:28 +01:00
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doc/classes/SpotLight3D.xml
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@ -5,6 +5,7 @@
</brief_description>
<description>
A Spotlight is a type of [Light3D] node that emits lights in a specific direction, in the shape of a cone. The light is attenuated through the distance. This attenuation can be configured by changing the energy, radius and attenuation parameters of [Light3D].
[b]Note:[/b] When using the Mobile or Compatibility rendering methods, spot lights will only correctly affect meshes whose visibility AABB intersects with the light's AABB. If using a shader to deform the mesh in a way that makes it go outside its AABB, [member GeometryInstance3D.extra_cull_margin] must be increased on the mesh. Otherwise, the light may not be visible on the mesh.
</description>
<tutorials>
<link title="3D lights and shadows">$DOCS_URL/tutorials/3d/lights_and_shadows.html</link>