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ALS technical notes: Difference between revisions
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→Fading of a directional light
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Up to inner_angle, the light will have full intensity. From inner to outer angle the light will linearly fade to outer_gain. From outer angle to zero angle, the light intensity will linearly fade to zero. | Up to inner_angle, the light will have full intensity. From inner to outer angle the light will linearly fade to outer_gain. From outer angle to zero angle, the light intensity will linearly fade to zero. | ||
To better explain the relation of the variables ''inner_angle'', ''outer_angle'' and ''zero angle'', this is the algorithm that produces the scalar value ''directional_fade'' from which the intensity value is defined in the shaders file ''light-ALS.frag'': | '''Note:''' To better explain the relation of the variables ''inner_angle'', ''outer_angle'' and ''zero angle'', this is the algorithm that produces the scalar value ''directional_fade'' from which the intensity value is defined in the shaders file ''light-ALS.frag'': | ||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||