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Merge pull request #58101 from Calinou/environment-clamp-sky-contribution-3.x

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Clamp environment light sky contribution to the [0.0; 1.0] range
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Rémi Verschelde 2022-02-15 07:38:26 +01:00 committed by GitHub
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2 changed files with 5 additions and 2 deletions
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3
doc/classes/Environment.xml
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@ -62,7 +62,8 @@
The ambient light's energy. The higher the value, the stronger the light.
</member>
<member name="ambient_light_sky_contribution" type="float" setter="set_ambient_light_sky_contribution" getter="get_ambient_light_sky_contribution" default="1.0">
Defines the amount of light that the sky brings on the scene. A value of 0 means that the sky's light emission has no effect on the scene illumination, thus all ambient illumination is provided by the ambient light. On the contrary, a value of 1 means that all the light that affects the scene is provided by the sky, thus the ambient light parameter has no effect on the scene.
Defines the amount of light that the sky brings on the scene. A value of [code]0.0[/code] means that the sky's light emission has no effect on the scene illumination, thus all ambient illumination is provided by the ambient light. On the contrary, a value of [code]1.0[/code] means that [i]all[/i] the light that affects the scene is provided by the sky, thus the ambient light parameter has no effect on the scene.
[b]Note:[/b] [member ambient_light_sky_contribution] is internally clamped between [code]0.0[/code] and [code]1.0[/code] (inclusive).
</member>
<member name="auto_exposure_enabled" type="bool" setter="set_tonemap_auto_exposure" getter="get_tonemap_auto_exposure" default="false">
If [code]true[/code], enables the tonemapping auto exposure mode of the scene renderer. If [code]true[/code], the renderer will automatically determine the exposure setting to adapt to the scene's illumination and the observed light.

4
scene/resources/environment.cpp
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@ -96,7 +96,9 @@ void Environment::set_ambient_light_energy(float p_energy) {
VS::get_singleton()->environment_set_ambient_light(environment, ambient_color, ambient_energy, ambient_sky_contribution);
}
void Environment::set_ambient_light_sky_contribution(float p_energy) {
ambient_sky_contribution = p_energy;
// Sky contribution values outside the [0.0; 1.0] range don't make sense and
// can result in negative colors.
ambient_sky_contribution = CLAMP(p_energy, 0.0, 1.0);
VS::get_singleton()->environment_set_ambient_light(environment, ambient_color, ambient_energy, ambient_sky_contribution);
}