Bigus Posted September 25, 2014 Share Posted September 25, 2014 HI All I'm a 3D and Babylon newbie and am struggling with normals. I understand the concept of them (I think) and that in Babylon terms a normal is defined for each vertex, but I don't know what values to use to define those normals or how to calculate them. Here is what I've been working on (a way of extruding an object from a 2d face): http://jsbin.com/noquwehujudi/1/edit The object is meant to be like a rectangular box with a rebate cut out of it and each "face" of that object is composed of 2 polygons but only one of which is "facing" the right way. I basically set all the normals to 1 _ I don't know what that 1 means, it's just a value used in one of the playground demos. I don't understand why some polygons are facing the right way (outwards) and some are facing inwards. Could someone tell me what I should be doing, in not too mathematical terms? ThanksBigus Quote Link to comment Share on other sites More sharing options...
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