25 lines
1.1 KiB
JavaScript
25 lines
1.1 KiB
JavaScript
//This file is automatically rebuilt by the Cesium build process.
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export default "/**\n\
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* Select which direction vector to use for dynamic atmosphere lighting based on an enum value\n\
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*\n\
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* @name czm_getDynamicAtmosphereLightDirection\n\
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* @glslfunction\n\
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* @see DynamicAtmosphereLightingType.js\n\
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*\n\
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* @param {vec3} positionWC the position of the vertex/fragment in world coordinates. This is normalized and returned when dynamic lighting is turned off.\n\
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* @param {float} lightEnum The enum value for selecting between light sources.\n\
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* @return {vec3} The normalized light direction vector. Depending on the enum value, it is either positionWC, czm_lightDirectionWC or czm_sunDirectionWC\n\
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*/\n\
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vec3 czm_getDynamicAtmosphereLightDirection(vec3 positionWC, float lightEnum) {\n\
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const float NONE = 0.0;\n\
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const float SCENE_LIGHT = 1.0;\n\
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const float SUNLIGHT = 2.0;\n\
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\n\
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vec3 lightDirection =\n\
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positionWC * float(lightEnum == NONE) +\n\
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czm_lightDirectionWC * float(lightEnum == SCENE_LIGHT) +\n\
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czm_sunDirectionWC * float(lightEnum == SUNLIGHT);\n\
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return normalize(lightDirection);\n\
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}\n\
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";
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