OTOY Forums

Hi, guys.

After my investigation, I found the wrong settings of various specular materials! Because its have the lack of dispersion and the reflection isn't realistic. I pity...

For real-life, the any specular material must have:
- reflection 1.0
- dispersion

NO EXIST any specular material non-dispersion in real-life. Lower dispersive of liquid material is likely liquid helium (He) = abbe number of 220 (= dispersion coefficient of 0.0015 but sorry no sure - disp. coeff.).

Therefore, try to correct wrong settings in LiveDB.

Man, You're.. just awesome! No, really. I haven't seen such dedication for caustics & related effects for long time..

---> For guys, can you understand well my OP? Are interested you that?

glimpse wrote:Man, You're.. just awesome! No, really. I haven't seen such dedication for caustics & related effects for long time..

My specular material settings are well corrects!

If we got too long time or we cannot get more than 256k samples/px at PMC kernel about caustics (without "caustic blur") then see new kernel - PPM (progressive photon mapping will be much, much more efficient than PMC) for OR 3?

Abbe number 220 - it isn't liquid but yes vapor. I'm very sorry. While the liquid helium has abbe number ~100 but dunno this right abbe number because I tried to search "abbe number liquid helium"... and I can't find it.

UDPATE: I've edited "- reflection ..." in my 1st post after my investigation again and I'm sorry.