Paulo Sampaio
02-25-2010, 09:33 AM
Hi everyone.
... So yesterday i was wondering about some micro details of some kinds of materials in real world that i dont know how to reproduce it in CG.
I observed there is some kinds of details, that I dont know what kind of map should i use to do it, and even if i known it, I´m not sure where to put that map ... i´m reffering to real small scratches... and some kind of thing that just appear when light hits it...
I google for some examples...
http://auto-fresh.co.uk/images/audi%20tt%20005.jpg
http://www.cuetopia.net/pics/8ball003a.jpg
http://www.cuetopia.net/pics/8ball003a.jpg
take a look to this circle centric specular with this small "lines"... how to reproduce it? it is bump map? anisotropic map? glossiness map? reflect map? a combination of all of theM?
Transparent Material
In this case, transparent material... there are two kinds of scratches.
regular scratches= depth scratch, clearly is affected by some bump map, and get a white color...
small scratches= just appear when light hits... and when transparent is some white color visible...
http://redsergegifts.com/shop/images/Acrylic%20Waterfall%20H.jpg
and the last one: What should i do to get this effect?
finger prints, and some "hand manipulation marks".
http://upload.ecvv.com/upload/Product/200801/C200781518637719555_Acrylic_Sign_Holder.jpg
yeah... yeah i know its really confuse...
Can someone give some cg example, or explanation?
Thanks
Sorry Bad english
... So yesterday i was wondering about some micro details of some kinds of materials in real world that i dont know how to reproduce it in CG.
I observed there is some kinds of details, that I dont know what kind of map should i use to do it, and even if i known it, I´m not sure where to put that map ... i´m reffering to real small scratches... and some kind of thing that just appear when light hits it...
I google for some examples...
http://auto-fresh.co.uk/images/audi%20tt%20005.jpg
http://www.cuetopia.net/pics/8ball003a.jpg
http://www.cuetopia.net/pics/8ball003a.jpg
take a look to this circle centric specular with this small "lines"... how to reproduce it? it is bump map? anisotropic map? glossiness map? reflect map? a combination of all of theM?
Transparent Material
In this case, transparent material... there are two kinds of scratches.
regular scratches= depth scratch, clearly is affected by some bump map, and get a white color...
small scratches= just appear when light hits... and when transparent is some white color visible...
http://redsergegifts.com/shop/images/Acrylic%20Waterfall%20H.jpg
and the last one: What should i do to get this effect?
finger prints, and some "hand manipulation marks".
http://upload.ecvv.com/upload/Product/200801/C200781518637719555_Acrylic_Sign_Holder.jpg
yeah... yeah i know its really confuse...
Can someone give some cg example, or explanation?
Thanks
Sorry Bad english