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Usage of Lights in directx .?


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#1 aravind   Members   -  Reputation: 120

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Posted 19 April 2014 - 04:44 AM

can anyone just explain What is the usage of Specular, Ambient, and Diffuse properties of light.. if u can please give some examples..



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#2 newtechnology   Members   -  Reputation: 734

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Posted 19 April 2014 - 06:08 AM

Diffuse - specifies how much/how model will be lit when the model receives light. (how much light should it reflect and absorb)

Ambient - specifies how much/how model will be lit when the model does not receive light. (Indirect light, the model would be lit by a uniform colour all over.)

Specular - when light strikes a smooth surface, they generally reflect in a sharp direction. This forms a specular highlight and it is viewport dependent. I think it is harder for me to explain you this because i suck at explanation. I think you should refer to a book, I'd suggest Frank D. Luna's DX11 book.


Edited by newtechnology, 19 April 2014 - 06:10 AM.


#3 Buckeye   Crossbones+   -  Reputation: 4932

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Posted 19 April 2014 - 07:35 AM

I googled "directx 9 lighting" and got 290,000 hits. You might try that. smile.png

 

Among those 290,000 references, this link provides a nice description of lighting.


Please don't PM me with questions. Post them in the forums for everyone's benefit, and I can embarrass myself publicly.





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