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Dislpay bug in Babylon when specular + normal map on new mobile devices


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Hello all,


Quite the same message as one of my previous topic ( http://www.html5gamedevs.com/topic/6210-big-display-bug-in-babylon-on-new-devices/ ), but another case.


On last generation tablets, there is a display bug in Babylon.js :

When using specular on objects (directly set in Blender, or via objectMaterial.specularColor or via objectMaterial.specularTexture) in addition with normal mapping (directly set in Blender or via objectMaterial.bumpTexture) there is a kind of conflit resulting in flickering little dots all around the object...


See attach files.


This problem doesn't occur with previous tablet generation, only the new one.


Works on :

ASUS Transformer Prime TF201 - android 4.1.1

ASUS MeMO Pad 10 (ME102A) - android 4.2


Bugs on :

SAMSUNG Galaxy Tab 10.1 2014 Edition - android 4.3

and many current devices in shops


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Argl !

I've just noticed that in your new version babylon.1.12-beta (452Ko) alpha maps are not rendered correctly anymore.

It seems that the alpha channel is not taken in account anymore.


This happens everywhere (PC, tablets, etc).

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Ok for the opacity. It would be convenient if the Blender exporter could automaticaly specify texture.getAlphaFromRGB = true if the opacity map does not contain alpha channel.


But for the display bug normal map + specular, any idea, news, questions, debug info, babylon beta to test ?

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