A polygon mesh is a collection of vertices, edges and faces that defines the shape of a polyhedral object in 3D computer graphics and solid modeling. This option lets you export objects created with polygon meshes.
Lets you export ambient, directional, point and spot lights.
Exports perspective and orthographic cameras.
Joints and Skin
If you have characters with skeleton in your scene, you should check this option. This option exports all the information required for skinning algorithm.
Self explanatory. Lets you export animations.
An invisible node is the node of any hidden object in your scene. This option lets you export invisible nodes.
Exports default Maya cameras. To export default Maya cameras, you should also check invisible nodes option to activate this option.
This option exports all texture coordinates.
Lets you export normal vectors.
Normals per vertex
COLLADA files can use one normal per polygon per vertex, especially to account for smoothing related to the same vertex being part of multiple polygons. Thus it is possible to have far more normals than vertices and in the combined index, each vertex can be associated with multiple normals. This option lets you export normals per polygon per vertex.
Each vertex in a mesh can optionally store a RGB color value, called vertex color. These can be used for a variety of interesting effects and shader inputs.
Vertices can also store vertex alpha, which can be used for multitexturing, transparency, or ambient occlusion.
This option lets you export vertex colors.
Vertex colors per vertex
A single vertex can be assigned multiple vertex colors. Thus it is possible to have far more colors than vertices and in the combined index, each vertex can be associated with multiple colors. This option lets you export multiple colors per vertex.
Exports tangents and binormals in texture space. This is the typical use-case for “tangent space” normal maps.
Exports tangents and binormals in geometric space. This is the typical use-case for “object space” or “world space” normal maps.
Reference materials only
Exports the materials used in your scene. Note that this option does not disable other export options.
Disables other export options and exports materials only.