Florin Herinean wrote:

I can confirm that DirectX version is behaving correctly regarding the
specular lighting effect, as in the attached image. However, you can clearly
see from the image that DirectX version has it's own bigger problems which
makes it unusable for me: it is not honouring the Back-face normal flip
option in the PolygonAttributes constructor (see the very dark front facing
faces). Is this a bug in j3d or simply directx layer doesn't know about
back-face normal flip ?


DirectX 8.0 API doesn't support two side lighting. So this is document
in README
of Java3D that Back-face normal flip is not support in DirectX version
of Java3D.

I'll make a simple test case for the opengl problem and send it to you.



Sure.


- Kelvin ------------ Java 3D Team Sun Microsystems Inc.

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