Not sure if helpers should be fogged or not. It does look pretty weird when they are not fogged. Also having helpers fogged helps to get a sense of the fog effect over larger space.

Maybe there could be a checkbox for enabling this, to be able to see things if they need to be modified while in the fog.

Also found and fixed a bug deep in WebGLRenderer, where shaders were not recompiled when changing fog types because fog type wasn't taken into account when creating shader code hash. Phew, that was a tough one to figure out. This Editor thingie really forces us to dust all nooks and cranies of the codebase ;)

For the moment just clear color is plugged in.

This is quite tedious. I think we may need to switch to CSS sooner than later.

Clicking in empty space now clears selection and selections stays on/off through dragging as expected.

This is how it works in Blender. This allows you to keep working with selected object while looking at it from different angles.

Downside is you can't clear selection anymore just by clicking into empty space. This btw is the same in Blender, though maybe we could have some solution comparing state at mousedown and mouseup.

Using a name of the object to be deleted (if available) and only appearing when something is selected.

Because ColladaLoader is weird: load is expecting progress callback as second argument and morph is created as SkinnedMesh object.

Added VTK and STL models to scene loader example. Added optional callback parameter to VTKLoader and STLLoader load to be compatible with other loaders.

Work in progress. Not really sure how to best deal with different loaders using different APIs. We should unify them somehow. Still need to handle ColladaLoader, UTF8Loader and OBJMTLLoader, every one of them is different from the others.

Testing how external hierarchies could be loaded via own handlers.

See #2534

See #1985

Just set "sprite.fog = true" to get scene fog working on the sprite.

Internally, implementation is a bit different than for other objects: because there is just a single material for all Sprites, fog is always compiled into the shader and it's turned on/off (or fog type is changed) via uniform.