varying vec2 v_textureCoordinates; void main() { czm_materialInput materialInput; materialInput.s = v_textureCoordinates.s; materialInput.st = v_textureCoordinates; materialInput.str = vec3(v_textureCoordinates, 0.0); materialInput.normalEC = vec3(0.0, 0.0, -1.0); czm_material material = czm_getMaterial(materialInput); gl_FragColor = vec4(material.diffuse + material.emission, material.alpha); }