Bump map scene format

[Meelis]

Hi

I don't get where is the bump value in exported scene materials file and in what units (V 0.8)?

Code: Select all

Texture "Brushed-Pd Bump" "float" "imagemap"
   "string filename" ["Low_Q_mp3_Blender_2_5_V5_part1/Scene/00001/Brushed Pd Bump 8bit.png"]
   "integer discardmipmaps" [0]
   "string filtertype" ["bilinear"]
   "float gain" [1.000000000000000]
   "float gamma" [2.200000047683716]
   "float maxanisotropy" [8.000000000000000]
   "string wrap" ["repeat"]
   "string channel" ["mean"]
   "string mapping" ["uv"]
   "float udelta" [0.000000000000000]
   "float uscale" [1.000000000000000]
   "float vscale" [-1.000000000000000]
   "float vdelta" [0.000000000000000]

MakeNamedMaterial "Brushed-Pd"
   "texture bumpmap" ["Brushed-Pd Bump"]
   "float uroughness" [0.085000000894070]
   "float vroughness" [0.064999997615814]
   "string filename" ["Low_Q_mp3_Blender_2_5_V5_part1/Scene/00001/Pd.nk"]
   "string type" ["metal"]

And how long will it take the black look to go away (without bump metal is really shiny with uroughness 0.085 and v.. 0.065)?
Black on mp3 http://static3.nagi.ee/i/p/750/89/1877231613a8bd_o.jpg

[Meelis]

I turned off the bump map, using the roughness U and V channels with textures.
Looks like metal now.

[Meelis]

Hi

Is the bump map issue exporter bug or LuxRender's or i did something wrong or is there way to manually write some lines in material file to get the bump to work.
The black doesn't go away in 4 hours.

[J the Ninja]

Seems you are using the texture without scaling it, which usually gives a very high bump amount. Btw, you normally want gamma=1 for float image textures (using them for bump maps, roughness, etc)

[Meelis]

Seems you are using the texture without scaling it, which usually gives a very high bump amount. Btw, you normally want gamma=1 for float image textures (using them for bump maps, roughness, etc)

How to i scale? In screenshot "Bump Map: 0.000010" has no effect if it's 0,0005 or 0.000001.
I have tested with default u v roughness .

[J the Ninja]

Have to make sure the "M" button is checked to enable scaling by the base value. Otherwise, the texture just takes over for it and is used in place of the value you specify.

[Meelis]

Have to make sure the "M" button is checked to enable scaling by the base value. Otherwise, the texture just takes over for it and is used in place of the value you specify.

Thank you so much, problem solved