Getting Blender to export .ply files with vertex colors I'm trying to get Blender to export .ply files with vertex colors and triangular faces. 

First, I assign my model a material, and change its diffuse color. Then, in edit mode, with my whole model selected, I press Ctrl+T to triangulate the faces. Then, I go to Export > Stanford (.ply), and making sure include vertex colors is selected, I export it.

However, when I look at the file, it has no color data, and the faces are not triangles (The faces consist of a seemingly random number of indices each). 

Am I doing anything wrong? I've tried searching quite a bit but can't seem to find anything. Thanks
A few things here:

The diffuse color you assigned isn't part of the Vertex Color content, they are distinct from eachother. If you want to give a single colour to all faces, then go to Vertex Paint mode and masking mode, select all faces, then pick a colour from the colour-wheel and press Shift + K . That will set the vertex colour for all faces. and Save.



For triangulation, you might have to make a duplicate of your model and triangulate, then press save, then export. Else I think the exporter will export the mesh's data from the most recent saved state (that wasn't triangulated yet).