Select the ‘Embed Media’ option in the FBX exporter panel. This packages the scene’s textures in the exported FBX. This preserves material to textures links during import into PlayCanvas. Otherwise, you must upload all scene textures separately and relink all textures to materials
The Blender COLLADA exporter does not have the ability to embed textures into the exported model file.
The 2.71 release of Blender features a revamped FBX export module that enables multiple embedded textures directly from Blender. First make sure the object is rendered correctly within Blender. When exporting to FBX, set the ‘Path Mode’ to Copy and check the ‘Embed Textures’ box.
Alternatively, use the Autodesk FBX Converter to convert an export from Blender into one with embedded media. Just open the file in the FBX Converter and re-save with the Embedded Media checkbox set.