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Differential D4205 Diff 13203 manual/render/eevee/lamps.rst

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manual/render/eevee/lamps.rst

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Defines the physical light shape. Defines the physical light shape.
Energy Energy
Light intensity. Affect both specular and diffuse light. Note: Can be negative but breaks PBR. Light intensity. Affects both specular and diffuse light. Note: Can be negative but breaks PBR.
Specular Specular
Specular Light intensity multiplier. Use it for more artistic control. Specular Light intensity multiplier. Use it for more artistic control.
Setting this to anything but 1.0 will yield non-photorealistic result. Setting this to anything but 1.0 will yield non-photorealistic results.
Size (or Radius) Size (or Radius)
Size of the lamp in Blender Units; increasing this will result in softer shadows and shading. Size of the lamp in Blender Units; increasing this will result in softer shadows and shading.
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Custom Limit Custom Limit
If enables uses *Distance* as the custom attenuation distance instead of global light threshold. If enabled uses *Distance* as the custom attenuation distance instead of global light threshold.
The *Distance* specify where light influence will be set to 0. The *Distance* setting specifies where the light influence will be set to 0.
.. seealso:: .. seealso::
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Point lamps emit light equally in all directions. Point lamps emit light equally in all directions.
By setting the *Size* larger than zero, they become spherical lamps, By setting the *Size* larger than zero, they become spherical lamps,
which give softer shadows (TODO 2.8 link soft shadows) and shading. which give softer shadows (TODO 2.8 link soft shadows) and shading.
The strength of point lamps is specified in Watts. The strength of point lamps is specified in watts.
Spot Lamp Spot Lamp
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By setting the *Size* larger than zero, they can cast softer shadows (TODO 2.8 link soft shadows) and shading. By setting the *Size* larger than zero, they can cast softer shadows (TODO 2.8 link soft shadows) and shading.
Spot Shape Spot Shape
Shape of the area lamp. Shape of the spot lamp.
The size parameter defines the size of the cone, The size parameter defines the size of the cone,
while the blend parameter can soften the edges of the cone. while the blend parameter can soften the edges of the cone.
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Sun lamps emit light in a given direction. Their position is not taken into account; Sun lamps emit light in a given direction. Their position is not taken into account;
they are always located outside of the scene, infinitely far away, they are as if located outside of the scene, infinitely far away,
and will not result in any distance falloff. and will not result in any distance falloff.
However, their position is taken into account for shadowing. See :ref:`eevee-cascaded-shadow-map`. However, their position is taken into account for clipping and shadowing. See :ref:`eevee-cascaded-shadow-map`.
Because they are not located inside the scene, their strength uses different units, Because they are not located inside the scene, their strength uses different units,
and should typically be set to lower values than other lights. and should typically be set to lower values than other lights.
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