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what is the extern... for??
It's not *needed*, however I put it there for readability.
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A global variable marked extern is an external input to the shader. To set an extern variable, use any of the set methods ("SetVertexShaderConstantX") or any of the ID3DXConstantTable interface methods.
A global variable that is not declared to be either static or extern is assumed to be extern. You cannot declare a global variable with both extern and static.
-MSDN
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you say it supports a point light.. how do you calculate attenuation? as far as i can see it doesnt have any at all. It seems you need another pass with an attenuation factor.
Good point, I have not added attenuation to the shader- this is a direct port of the one linked to in the first post. If I find a few minutes sometime this week I will throw in attenuation. I have another ps1.1 normalmapping shader I coded a while back from scratch that uses attenuation and specular, I will probably just copy some source from that over.
-Rhuarc
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