Vertex Array Models

[patrick]

Switch to vertex array model representation instead of opengl lists (that's what is used now). There are many resources about this topic online. Though there could be a problem defining multiple materials per vertex, at is is used by the .obj model.

here is a basic idea of how to make the arrays:

• ​http://www.gamedev.net/community/forums/topic.asp?topic_id=418898

[patrick]

more links:

• ​http://www.gamedev.net/community/forums/topic.asp?topic_id=418396

[bensch]

Vertex Array models are mainly good for deformable objects. Static Objects, that on collision do just explode can safely be handled with OBJ.

Anyways. There is a Tool already inside of Orxonox, that enables us to convert from a Static (glList) Model to a Vertex Array Model. It is called TC and is located in source:trunk/src/lib/graphics/importer/tc.h#9800. The problem of Multiple Materials/Normals per Vertex still remains, and without redundancy it is impossible to fix this issue.

The suggestion is, that changing the obj-loader to a vertex-array loader makes little sense, but loading a different format directly to vertex-arrays and making VertexArrayModel more usefull would be the best idea.

[bknecht]

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