Exporting 3D models to Collada: The Options

Settings Settings about the color and the image that will make up the file's background
Artwork quality Set the quality in which you want EngView to export the textures on the 3D model.

TIP: You can set a quality size of up to 16k, but before setting a size, make sure that the video adapter that will be displaying the exported file supports this quality size.

Allow GLSL Select this check box to include shader-dependent effects in the exported file. These effects include smooth edges along crease lines, imprint effects (embossing and debossing) and varnished surfaces.

IMPORTANT: Leaving the check box empty will not visualize crease line in the exported file.