forked from Rowland/EG
28 lines
926 B
GLSL
28 lines
926 B
GLSL
/**
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* @private
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*/
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vec4 czm_translucentPhong(vec3 toEye, czm_material material, vec3 lightDirectionEC)
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{
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// Diffuse from directional light sources at eye (for top-down and horizon views)
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float diffuse = czm_getLambertDiffuse(vec3(0.0, 0.0, 1.0), material.normal);
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if (czm_sceneMode == czm_sceneMode3D) {
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// (and horizon views in 3D)
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diffuse += czm_getLambertDiffuse(vec3(0.0, 1.0, 0.0), material.normal);
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}
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diffuse = clamp(diffuse, 0.0, 1.0);
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float specular = czm_getSpecular(lightDirectionEC, toEye, material.normal, material.shininess);
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// Temporary workaround for adding ambient.
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vec3 materialDiffuse = material.diffuse * 0.5;
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vec3 ambient = materialDiffuse;
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vec3 color = ambient + material.emission;
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color += materialDiffuse * diffuse * czm_lightColor;
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color += material.specular * specular * czm_lightColor;
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return vec4(color, material.alpha);
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}
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