jtBaseApp/node_modules/@cesium/engine/Source/Shaders/Voxels/convertUvToBox.glsl

/* Box defines (set in Scene/VoxelBoxShape.js)
#define BOX_HAS_SHAPE_BOUNDS
*/

#if defined(BOX_HAS_SHAPE_BOUNDS)
    uniform vec3 u_boxUvToShapeUvScale;
    uniform vec3 u_boxUvToShapeUvTranslate;
#endif

vec3 convertUvToShapeUvSpace(in vec3 positionUv) {
#if defined(BOX_HAS_SHAPE_BOUNDS)
    return positionUv * u_boxUvToShapeUvScale + u_boxUvToShapeUvTranslate;
#else
    return positionUv;
#endif
}

vec3 convertShapeUvToUvSpace(in vec3 shapeUv) {
#if defined(BOX_HAS_SHAPE_BOUNDS)
    return (shapeUv - u_boxUvToShapeUvTranslate) / u_boxUvToShapeUvScale;
#else
    return shapeUv;
#endif
}