surfaces IN KRAY

[juli51_forum]

As I've hear.... no specularity is needed in Kray, so.. what about glosiness then...
How to manage with spec and glossyness since we are used to that in Lw,... can we achieve the same results just with blurring, reflections or difusse?.....

[Pavlov]

hi,
it's not a preciase rule.
Kray is very fast with blurred reflections, moslty if you use low blurring threeshold - so Kray will reflect/refract just irradiance one other surfaces and not full FG - so it's more realistic to simulate specularity this way, since specularity is an heavy blurred reflection.
Anyway i still use specularity a lot, if i need even faster rendering and if i have enought light sources to get a correct behavior.
So it's not a "must do", it's just an advice for better results.

Bye
Paolo

[juli51_forum]

Fine, thanks Pavlov,.... I post here my las render of test scene,... I can understand a bit more now.
So, Simulate specularity with blurring reflection and low blurring threshold is not as fast as using specularity itself but gives better results... ...and you get the glosiness using less blurring and more reflection, because in LW with no specularity there is no glosyness...... am i correct?..

....hope so

[Pavlov]

true, higher blurring= lower glosiness (more diffuse reflection)

Paolo