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48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
#ifndef OPENMW_COMPONENTS_LIGHTUTIL_H
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#define OPENMW_COMPONENTS_LIGHTUTIL_H
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#include <osg/Vec4f>
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#include <osg/ref_ptr>
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namespace osg
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{
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class Group;
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class Light;
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}
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namespace ESM
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{
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struct Light;
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}
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namespace SceneUtil
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{
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class LightSource;
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/// @brief Set up global attenuation settings for an osg::Light.
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/// @param radius The radius of the light source.
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/// @param isExterior Is the light outside? May be used for deciding which attenuation settings to use.
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void configureLight(osg::Light* light, float radius, bool isExterior);
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/// @brief Convert an ESM::Light to a SceneUtil::LightSource, and add it to a sub graph.
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/// @note If the sub graph contains a node named "AttachLight" (case insensitive), then the light is added to that.
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/// Otherwise, the light is attached directly to the root node of the subgraph.
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/// @param node The sub graph to add a light to
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/// @param esmLight The light definition coming from the game files containing radius, color, flicker, etc.
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/// @param lightMask Mask to assign to the newly created LightSource.
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/// @param isExterior Is the light outside? May be used for deciding which attenuation settings to use.
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osg::ref_ptr<LightSource> addLight(
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osg::Group* node, const ESM::Light* esmLight, unsigned int lightMask, bool isExterior);
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/// @brief Convert an ESM::Light to a SceneUtil::LightSource, and return it.
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/// @param esmLight The light definition coming from the game files containing radius, color, flicker, etc.
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/// @param lightMask Mask to assign to the newly created LightSource.
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/// @param isExterior Is the light outside? May be used for deciding which attenuation settings to use.
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/// @param ambient Ambient component of the light.
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osg::ref_ptr<LightSource> createLightSource(const ESM::Light* esmLight, unsigned int lightMask, bool isExterior,
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const osg::Vec4f& ambient = osg::Vec4f(0, 0, 0, 1));
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}
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#endif
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