Colors/Reuse/Selection

[rubendel]

So there are quite a few combinations of colors/reuse/selection, all of them should work, efficiently.

Colors:

• Indices/Vertices/Normals + Type (like IfcDoor) -> Color is based on the type, a SceneJS material can be used
• Indices/Vertices/Normals/Colors -> Color is based on per-vertex colors, no SceneJS material

Reuse:

• Reused (for example a window with the same dimensions being reused all over the building)
• Not reused (for example just one instance, or simply no reuse defined in original IFC file)

Selection:

• An object can be not-selected
• An object can be the primary selected object (just one object allowed to be in this state)
• An object can be part of the secondary selection (multiple objects allowed)

"Complications":

• An object that is being reused, that is also being selected, should obviously not change the color of the other reused objects
• Figure out an intuitive way of visualising the difference between the primary/secondary selection

[xeolabs]

For "selection", would this involve some sort of constraint that prevents certain objects from being selected?

[rubendel]

Oh no with "non-selected" I mean the default state, in which an object is simply not selected. I think every object should be selectable, at least for now.

[rubendel]

Yet another combination:

• Geometry that has less then 65000 or something vertices, which is fine
• Geometry that has more than that, we split it into multiple objects now to make sure WebGL is going to be able to handle it