To have more free 3D scenes for our Community, we create "Upload one to Download five" system which means that with your free membership, you can download maximum "5 free 3D scenes" of Render-ray. If you would like to continue downloading, you have to share “upload “a scene or a tutorial of your own. The more you upload, the more you can download. For unlimited downloads without uploading obligations you have to be a premium member.