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Explanation of UVKind


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Hi Jacquesr!  You can probably find the answer to your 2nd question... on the web.

Here is a nice Jerome "howdy-do-dat?" demo... where I have added a few alerts into the playground scene.  Close all the alerts and any errors, and then press RUN (again).


Take notice of lines 88-96.  Line 88 shows that there are 180 positions in this model.  It takes 3 values to create a vertex position... so I divided positions.length by 3.

Line 89... here I divide the uvs array by 2.  It also reports 180.  So we know it takes 2 UVs values per vertex.  Careful here.  I think a SINGLE UV has 2 values... by its very nature.  So there are 180... "pairs" of values.  First a U, then a V, then a U, then a V, etc.  :)

Lines 91-96... I am dumping each UV (x/y) on a line of its own... in the alert.  'U-V-W' can be thought-of as X-Y-Z for textures.  :)

Ok, that's all I know.  Hope this helps.  Hope I didn't say anything stupid or wrong.  Smarter people than I... are nearby.  They'll comment soon, as needed.  You can use our cool playground searcher to get links to LOTS of demos that use uvKind... http://doc.babylonjs.com/playground?q=uvKind

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