Vertices redundance question

Hello, i’m reading the redbook (5 chapters for the instance), so i saw display lists but nothing else for geometry.

I didn’t see the notion of “vertices list” and “index list”.

For example when we have an object made by 600 vertices and 1000 faces, must i do 1000 times the definition of one triangle and by the way define 3000 vertices ???

(vertex/normals transformation have a null hardware calculating time ?)

It seems logical to specify our 600 vertices and the “index”: triangle A is made by vertices N°1, N°127, N°237, triangle B is made by vertices N°1,N°256,N°130 …

Thank you, it’s hard to understand it could not exist !

I guess some more reading is in order.

And no, you dont have to define 3000 verticies.

in order… for reading the redbook ?
i already read the first 5 chapters in the order… thanks for your help