/ 2026-04-12T06:44:07+00:00 / /lib/tpl/dazdoccenter/images/favicon.ico text/html 2012-04-04T04:16:54+00:00 /public/dson_spec/object_definitions/light_point/start <h1 id="light_point">light_point</h1> <div class="level1"> </div> <h2 id="description">Description</h2> <div class="level2"> <p> An object that defines properties of a point light source. </p> </div> <h2 id="parent_objects">Parent Objects</h2> <div class="level2"> <ul> <li class="level1"><div class="li"> <a href="/public/dson_spec/object_definitions/light/start" class="wikilink1" title="public:dson_spec:object_definitions:light:start">light</a></div> </li> </ul> </div> <h2 id="properties">Properties</h2> <div class="level2"> <div class="table sectionedit1"><table class="inline"> <thead> <tr class="row0"> <th class="col0"> Name </th><th class="col1"> Description </th><th class="col2"> Default </th><th class="col3"> Required </th> </tr> </thead> <tr class="row1"> <td class="col0"> intensity </td><td class="col1"> Light intensity, in the [0, 1] range </td><td class="col2"> 1.0 </td><td class="col3"> no </td> </tr> <tr class="row2"> <td class="col0"> shadow_type </td><td class="col1"> Type of shadowing to use for this light. Valid values are “none”, “shadow_map”, and “raytraced”. </td><td class="col2"> “none” </td><td class="col3"> no </td> </tr> <tr class="row3"> <td class="col0"> shadow_softness </td><td class="col1"> If the light casts shadows, this is the softness factor to apply to the shadow. </td><td class="col2"> 0.0 </td><td class="col3"> no </td> </tr> <tr class="row4"> <td class="col0"> shadow_bias </td><td class="col1"> For shadow mapped shadows, this is the shadow bias. </td><td class="col2"> 1.0 </td><td class="col3"> no </td> </tr> <tr class="row5"> <td class="col0"> constant_attenuation </td><td class="col1"> See Details </td><td class="col2"> 1.0 </td><td class="col3"> no </td> </tr> <tr class="row6"> <td class="col0"> linear_attenuation </td><td class="col1"> See Details </td><td class="col2"> 0.0 </td><td class="col3"> no </td> </tr> <tr class="row7"> <td class="col0"> quadratic_attenuation </td><td class="col1"> See Details </td><td class="col2"> 0.0 </td><td class="col3"> no </td> </tr> </table></div> <!-- EDIT1 TABLE [222-802] --> </div> <h2 id="details">Details</h2> <div class="level2"> <p> The constant_attenuation, linear_attenuation, and quadratic_attenuation are used to calculate the total attenuation of this light given a distance. The equation used is: </p> <p> color_scaling = constant_attenuation + ( Dist * linear_attenuation ) + (( Dist^2 ) * quadratic_attenuation ) </p> </div> <h2 id="example">Example</h2> <div class="level2"> <pre class="code">{ &quot;intensity&quot; : 0.34, &quot;shadow_type&quot; : &quot;shadow_map&quot;, &quot;shadow_softness&quot; : 3.0, &quot;shadow_bias&quot; : 2.8, &quot;constant_attenuation&quot; : 0.8 }</pre> </div>