Photon mapping method has some differences from reality.
Someone writes about it in this article.
Kerkythea Rendering System FAQ
Material Editor Guide - There also write about the problem of "specular sampling" associated with photon mapping.
Writes Micheus - I noticed that mainly in reflective metals. It's true.
If we want to achieve with photon mapping nice reflections, we must remove Specular maps and change it for reflection map.
But this is not always the reality.
Yesterday I tried some tests. Look at that (images are 800x600 resolution)
I changed the bracelet material (add fresnel specular sampling).
For detail zoom it.
Interestingly, some materials containing specular maps, changing imaging.
(the floor In photon mapping)
AMD Athlon II X2 250 3 Ghz x64 2core
4 GB of RAM 1066 Mhz DDR3
AMD Radeon HD 6670 1GB GDDR5
There is too little visible sign "Casio". (Bump mapping)
And last i add Subsurface Scattering material.
So everything has pros and cons.
For me, winning Photon Mapping for exterior through daylight.
Metropolis light transport (Mlt) for product design.
Thanks
Post moved from this olve11's thread - check it out for full size images.
Someone writes about it in this article.
Kerkythea Rendering System FAQ
Material Editor Guide - There also write about the problem of "specular sampling" associated with photon mapping.
Writes Micheus - I noticed that mainly in reflective metals. It's true.
If we want to achieve with photon mapping nice reflections, we must remove Specular maps and change it for reflection map.
But this is not always the reality.
Yesterday I tried some tests. Look at that (images are 800x600 resolution)
I changed the bracelet material (add fresnel specular sampling).
For detail zoom it.
Interestingly, some materials containing specular maps, changing imaging.
(the floor In photon mapping)
AMD Athlon II X2 250 3 Ghz x64 2core
4 GB of RAM 1066 Mhz DDR3
AMD Radeon HD 6670 1GB GDDR5
There is too little visible sign "Casio". (Bump mapping)
And last i add Subsurface Scattering material.
So everything has pros and cons.
For me, winning Photon Mapping for exterior through daylight.
Metropolis light transport (Mlt) for product design.
Thanks
Post moved from this olve11's thread - check it out for full size images.