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Merge pull request #7561 from Calinou/spatial-shader-light-color-pi-multiplier

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Document `LIGHT_COLOR` being multiplied by `PI` in Spatial shader
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Matthew
2023-07-05 20:10:53 -04:00
committed by Max Hilbrunner
parent 653db78caa
commit 89db920165
1 changed files with 4 additions and 1 deletions
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5
tutorials/shaders/shader_reference/spatial_shader.rst
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@@ -441,7 +441,10 @@ If you want the lights to add together, add the light contribution to ``DIFFUSE_
+-----------------------------------+----------------------------------------------------+
| in vec3 **LIGHT** | Light Vector, in view space. |
+-----------------------------------+----------------------------------------------------+
| in vec3 **LIGHT_COLOR** | Color of light multiplied by energy. |
| in vec3 **LIGHT_COLOR** | Color of light multiplied by ``energy * PI``. |
| | The ``PI`` multiplication is present because |
| | physically-based lighting models include a |
| | division by ``PI``. |
+-----------------------------------+----------------------------------------------------+
| in float **SPECULAR_AMOUNT** | 2.0 * ``light_specular`` property for |
| | ``OmniLight3D`` and ``SpotLight3D``. |