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ALS technical notes: Difference between revisions
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→Configuring the light
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Make your own derived effect inheriting from Effects/procedural-light.eff and assign it in the xml wrapper of the light. | Make your own derived effect inheriting from Effects/procedural-light.eff and assign it in the xml wrapper of the light. | ||
====The base light color set==== | |||
The base light color can be set via: | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||
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These take the normal set of values ranging from 0 to 1. | These take the normal set of values ranging from 0 to 1. | ||
====Light full intensity in the center==== | |||
Now the light appears at full intensity in the center can be set via: | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||
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There are no sanity checks done, you can assign any center color you like even if this makes no sense - you can change center color or darken it, so use with care. | There are no sanity checks done, you can assign any center color you like even if this makes no sense - you can change center color or darken it, so use with care. | ||
====Runtime change the light intensity==== | |||
To runtime change the light intensity, assign | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
====Set directional lights==== | |||
For directional lights, you need to assign a pointing vector in aircraft coordinates into which the light cone points and set the directionality flag to true to activate the computations. This is done via: | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||
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<b>Do not use a rotation animation to change the light direction - it won't work.</b> Make the pointing vector properties and change them to your needs. | <b>Do not use a rotation animation to change the light direction - it won't work.</b> Make the pointing vector properties and change them to your needs. | ||
====Fading of a directional light==== | |||
The fading of a directional light away from the pointing axis is controlled by passing angles (or rather sines of angles). | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
====Strobe effect==== | |||
For get an automatic strobe effect you can set: | |||
<syntaxhighlight lang="xml"> | <syntaxhighlight lang="xml"> | ||