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Triangle Strips

Started by Goblin Jan 11, 2001 at 9:33 PM 1 replies 450+ views

Original Post

Jan 11, 2001 at 9:33 PM

To my inexperienced, just-jumping-into-3D-ness... Triangle Strips appeared to be drawing triangles from the last 2 plus the one you next define so it would be: 1 3 | 5 7 | | | 2 4 | 6 8 | etc. (for sides of a cube) Something tells me I''m incredibly wrong, because then I wouldn''t be able to create an entire cube, just the sides around it, not the top/bottom. Help? ----------------- The Goblin ----------------- "Oh, God..." "Yes?" <- My Response

Seedload

Jan 12, 2001 at 2:22 PM

You are wrong, but you still can''t do a cube with a triangle strip without hiding some vertexes.

Assume 6 vertexes a,b,c,d,e,f

Then the triangles rendered, in order, are:

(a,b,c)
(b,d,c)
(c,d,e)
(d,f,e)

a---c---e
| /| /|
| / | / |
|/ |/ |
b---d---f

Each triangle is rendered using one additional vertex (not two) with the two previous.

Later,
Seedload

Seedload

Jan 12, 2001 at 2:24 PM

Damn font ruined my pretty picture... you get the idea anyway.

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