RenderItem.java 文件源码

/**
 * Return true if only one scale is negative
 */
private boolean isThereOneNegativeScale(ItemTransformVec3f itemTranformVec)
{
    return itemTranformVec.scale.x < 0.0F ^ itemTranformVec.scale.y < 0.0F ^ itemTranformVec.scale.z < 0.0F;
}