I would use 1,2,3 and 1,3,4 instead, see uploaded image.
greetz Lord Horazont
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| quad to 2 triangles how? https://delphigl.com/forum/viewtopic.php?f=19&t=7177 |
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| Autor: | noeska [ Fr Jan 04, 2008 19:23 ] |
| Betreff des Beitrags: | quad to 2 triangles how? |
i have a quad that consist of 4 vertexes and 4 indices (making up the face) e.g. 1,2,3,4 i want to have 2 triangles. Would i order the indices then as 1,2,3 and 3,2,4 ? the resulting mesh still has holes. |
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| Autor: | TAK2004 [ Fr Jan 04, 2008 19:32 ] |
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2-3 |/| 1-4 1,2,3,3,4,1 |
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| Autor: | Lord Horazont [ Fr Jan 04, 2008 19:32 ] | ||
| Betreff des Beitrags: | |||
I would use 1,2,3 and 1,3,4 instead, see uploaded image. greetz Lord Horazont
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| Autor: | noeska [ Fr Jan 04, 2008 20:21 ] |
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Thanks. But what horror i ended up using 4,2,1 and 3,2,4 Should i look up the vertex values to determine winding of the face? |
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| Autor: | Lord Horazont [ Fr Jan 04, 2008 20:42 ] |
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Normally, if you have the original vertex data available in the order you would need it to draw the quad directly, you should be able to reuse them without changing anything. (or did I missunderstood your question?) greetz Lord Horazont |
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| Autor: | noeska [ Fr Jan 04, 2008 22:57 ] |
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I am trying to read in .obj files from the dynamic ambient occlusion demo from the nvidia site. Appearantly the vertexes are ordered correctly for usage with quads but not optimized for usage with triangles. I better get hold of some more obj files. |
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