Cel Shading and Outlining in TGE 1.4

I posted these resources to GG back in late April, and are the result of work on the revived Paintball Net project.

Cel Shading in TGE

This method of cel shading DTS objects is based on OpenGL multi-texturing and uses a 2nd rendering pass. The resulting look, though, seems to be well worth the extra pass. And since you can limit which objects get the cel-shading (players, statics, etc) you don't have to take the 2-pass performance hit on everything.

Shape Outlining in TGE

This resource draws outlines around shapes (DTS objects) based on the edges and faces of the object. Creating the necessary list of the edges and faces of the model is somewhat time-intensive, though, so this resource also includes a mechanism for saving and loading the edges and faces from a file.

An extension I would like to see in the outlining is support for textured strokes. This would add another performance hit, but would look quite snazzy, I think. I might experiment with achieving that effect later in the year.

Both resources are for OpenGL. Neither particularly likes DirectX.

Have fun with 'em.

-David
Joe Indie