Home
- POV-Ray Tutorial
Oberflächengestaltung
- Farben und Texturen
Inhalt
texture Syntax
Vorgefertigtes
Farben Do-it-Yourself
Muster
Muster Listen
Warps
- warp mapping
uv_mapping
Mapping
- Mapping-Methoden
- color_map{...}
- pigment_map{...}
- texture_map{...}
- normal_map{...}
- average
- material_map{...}
- image_map{...}
- image_map+gif 1
- image_map+gif 2
> image_map+gamma
- bump_map{ ... }
- transparency maps 1
- transparency maps 2
- transparency maps 3
Überlagerungen
Eigene Texturen
|
"image_map{ ... }" und "gamma"
Ein Feature für image_map Bilder, neu in POV-Ray Version 3.7
Es gibt einen großen Unterschied darin wie POV-Ray Version 3.6.2 und Version 3.7
den Gamma-Wert von Bildern beim Gebrauch in image_map behandeln:
|
"image_map" mit POV-Ray 3.6.2:
//--------------------------------------
#version 3.6;
global_settings{ assumed_gamma 1.0 }
#default{ finish{ ambient 0.1 diffuse 0.9}}
//--------------------------------------
// ...
// box with layered textures
box { <-0.04,-0.04,0>,< 1.03, 1.04, 0.01>
// 1st layer: White
texture{
pigment{ color rgb<1,1,1>*1.1 }
finish{ phong 1}
} // ------------------------------
// 2nd layer: image_map
texture{
pigment{
image_map{
jpeg "Image_gamma_0.jpg"
map_type 0
interpolate 2
once
} // end of image_map
} // end of pigment
} // end of texture
scale <4/3,1,1>*1.75
translate<-1.5,0.1,-2>
} // end of box //----------------------- |
Ein Makro für die Anpassung des Gammas von
Bildern in image_maps mit POV-Ray Version 3.6.2. ist
hier.
|
Das Bild das hier für image_map verwendet wurde.
Bild-Datei: Image_gamma_0.jpg
image_map mit POV-Ray 3.6 ... ein Gamma-Problem!
POV-Ray 3.6.2 Szenendatei: Image_gamma36_1.pov
|
"image_map" mit POV-Ray 3.7 (RC6):
//--------------------------------------
#version 3.7;
global_settings{ assumed_gamma 1.0 }
#default{ finish{ ambient 0.1 diffuse 0.9}}
//--------------------------------------
// ...
// box with layered textures
box { < -0.04, -0.04,0>,< 1.03, 1.04, 0.01>
// 1st layer: White
texture{
pigment{ color rgb<1,1,1>*1.1 }
finish{ phong 1}
} // ------------------------------
// 2nd layer: image_map
texture{
pigment{
image_map{
jpeg "Image_gamma_0.jpg"
map_type 0
interpolate 2
once
} // end of image_map
} // end of pigment
} // end of texture
scale <4/3,1,1>*1.75
translate<-1.5,0.1,-2>
} // end of box //----------------------- |
|
|
image_map mit POV-Ray 3.7, default Gamma-Einstellung
POV-Ray 3.7 Szenendatei: Image_gamma37_1.pov
|
"image_map" in POV-Ray 3.7 (RC6)
mit Gamma-Korrektur des Bild-Inputs:
Man kann die default Gamma-Einstellung überschreiben!
// box with layered textures
box { < -0.04, -0.04,0>,< 1.03, 1.04, 0.01>
// 1st layer: White
texture{
pigment{ color rgb<1,1,1>*1.1 }
finish{ phong 1}
} // ------------------------------
// 2nd layer: image_map
texture{
pigment{
image_map{
jpeg "Image_gamma_0.jpg"
gamma 2.0
map_type 0
interpolate 2
once
} // end of image_map
} // end of pigment
} // end of texture
scale <4/3,1,1>*1.75
translate<-1.5,0.1,-2>
} // end of box //----------------------- |
|
|
image_map mit POV-Ray 3.7 und 'gamma 2.0'
|
"image_map" mit POV-Ray 3.7 (RC6)
mit Gamma-Korrektur + emission:
// box with layered textures
box { < -0.04, -0.04,0>,< 1.03, 1.04, 0.01>
// 1st layer: White
texture{
pigment{ color rgb<1,1,1>*1.1 }
finish{ phong 1}
} // ------------------------------
// 2nd layer: image_map
texture{
pigment{
image_map{
jpeg "Image_gamma_0.jpg"
gamma 2.5
map_type 0
interpolate 2
once
} // end of image_map
} // end of pigment
finish{ emission 0.3 }
} // end of texture
scale <4/3,1,1>*1.75
translate<-1.5,0.1,-2>
} // end of box //----------------------- |
|
|
image_map mit POV-Ray 3.7
und 'gamma 2.5' + 'emission 0.3'
|
|
