different levels of reflection on same texture

[llkk]

hi

i'm still new to the engine, and i'm having some bad time with differents levels of reflection and gloss on the same material, like fat finger stains on smooth surface or scratches on carpaint.

i'm using the bitmap, but it doesnt really do it.

[Sylk]

Use maps on channels. With grey level, black to white = no reflection to full reflection

[antonyebl]

Or use mix material and bitmap as the mixing mask.

[antonyebl]

Use maps on channels. With grey level, black to white = no reflection to full reflection

see http://www.fstormrender.ru/manual/fstormmaterial

reflection sets highlights and reflections color. Reflection value is affected by ior value through fresnel effect.

reflection glossy sets reflections blur. 1.0 value gives completely sharp/clear reflections without blur. 0.0 value gives completely blurry reflections.

0 value (black)
1 (white)

[Sylk]

for exemple, like that

[llkk]

got something close to what i was aiming for.

fstorm is SUPER SENSITIVE to grey values. i had to color correct the brightness of the metal shine to +0.98 to have this. and i find it still too much.

any idea how to get the noise off the reactor ?
also, i put a simple hdr in the environment, but had to boost it up to 130 before it could appear in the reflections.
so high values are normal in fstorm or did i do something wrong ?

49 sec on 970gtx

[antonyebl]

as for HDR intensity make sure it's loaded with gamma 2.2 (not 1.0)
(then it works in range from 1-10 for most hdrs in my experience)

as for materials/noise it's hard to tell without seeing the actual settings;
maybe 49s isn't enough for sufficient noise reduction though

[Sylk]

2000-3000 passes is good value to denoise