Turns out I had it right before after all: to get rid of artefacts it should be multiplied by diffuse term (instead of being patched by conditional).

Unfortunately "File" doesn't have path information, so textures won't load :/
Tried to also drop .js files, but the Workers part ruined the party too :/ :/

Not much luck yet, for some reason the camera zooming doesn't work  on the orthographic views :/

* Fixed `ColladaLoader` and `Loader` url base extraction code.
* `ColladaLoader` now ignores non-joint nodes when constructing the skeleton. (Hopefuly, in a  year time, I'll find this fix stupid)