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When i reduce the specular part of a glossy material to 0, there is still reflection.
Is this a bug?

tungee wrote:When i reduce the specular part of a glossy material to 0, there is still reflection.
Is this a bug?

no, it's due to the BRDF used, it's a glossy material, it's always got a coating.

Radiance

Thanx Radiance!
Is there a possibilty to reduce it to minimum reflection (porcelain for example)?

Ok i think when material blending is in Octane this would be no problem i think.

tungee wrote:Thanx Radiance!
Is there a possibilty to reduce it to minimum reflection (porcelain for example)?

Ok i think when material blending is in Octane this would be no problem i think.

not sure but imo porcelain is quite glossy not ?

Radiance

Not necessarily



It can be rather diffuse depending on the finish.

you can approach the behaviour of a diffuse material by setting the roughness slider very high, that should give you a similar material i think.

Radiance

Is the glossy material a phong material, Radiance?
Because the diffuse part of an phong material is a lambertian and the specular part a phong lobe.
It should be possible to reduce the specular part to zero or or nearly zero (o.ooooox)?
Im not a render expert, but in other renderers it is possible.

Thanx

tungee wrote:Is the glossy material a phong material, Radiance?
Because the diffuse part of an phong material is a lambertian and the specular part a phong lobe.
It should be possible to reduce the specular part to zero or or nearly zero (o.ooooox)?
Im not a render expert, but in other renderers it is possible.

Thanx

No,

Unfortunately our policy is not to talk about the internals of the engine,
there's too much competition reading these posts.
It's not a phong material/BRDF.

It's a fresnel controlled specular layer ontop of a diffuse reflector.

Radiance