What winding order(cc or ccw) does away3d use?

How do you specify the winding order in molehill (not in away3d, but if you were doing a standalone demo)?

I haven’t been able to find anything other than the as3 docs saying that you just need consistent order across your mesh.

I’ve always been under the impression that Away3D was a left-handed 3D system, which employs the left-hand-rule and a clock-wise winding order. I’d also assume that Molehill does the same, as is Windows Direct3D tradition. On a Mac and/or OpenGL, Molehill could be using glFrontFace(GL_CW) to keep left-handedness consistent. That is, if it really is left-handed.

Is there a special use case that you need to set the winding order for? In most cases using vertex buffer objects, you simply fill the normal buffer so winding order is rendered irrelevant.

Cheers!
Alex

The Stage3D API lets you specify which faces should be culled:

context3D.setCulling(...) passing any value in Context3DTriangleFace. So depending on your windedness, you either pass FRONT or BACK. But yeah, you need to be consistent throughout.

I see, thanks for the replies. There isn’t some special case, I am just building some of my own meshes. I think you are right in that away3d, and molehill are clockwise winding order. If I use counterclockwise order, I need to do setCulling(FRONT) which seems weird to me. I was just hoping there was a way to use ccw order and setCulling(BACK).