Default Shader 4.5 - Revision history

Redmaw: Replaced GUI images for Roughness, Specular and Displacement.

2021-01-06T21:29:59Z

Replaced GUI images for Roughness, Specular and Displacement.

Matt: Remap ^2 after invert

2020-12-28T11:44:00Z

Remap ^2 after invert

Matt: Remap ^2

2020-12-28T11:14:27Z

Remap ^2

Matt: Remap ^2

2020-12-28T11:11:24Z

Remap ^2

Matt: Displacement image gamma (deprecated)

2020-12-28T10:55:21Z

Displacement image gamma (deprecated)

Matt: Updated descriptions and names for gamma settings

2020-12-28T10:49:49Z

Updated descriptions and names for gamma settings

Redmaw: Replaced example image on Roughness tab for Roughness setting. Font size for values made smaller to match other images on page.

2020-12-21T22:01:28Z

Replaced example image on Roughness tab for Roughness setting. Font size for values made smaller to match other images on page.

Redmaw: Added example image on Roughness tab for Roughness. Replaced example image on Specular tab for Fresnel reflectivity values with image w/correct padding.

2020-12-21T21:09:15Z

Added example image on Roughness tab for Roughness. Replaced example image on Specular tab for Fresnel reflectivity values with image w/correct padding.

Matt: Moved the dielectric roughness example above the conductors examples

2020-12-20T03:05:32Z

Moved the dielectric roughness example above the conductors examples

Redmaw: Replaced example images on Roughness tab for Specular roughness models. Reformatted layout of images.

2020-12-19T04:04:49Z

Replaced example images on Roughness tab for Specular roughness models. Reformatted layout of images.

@@ Line 80: / Line 80: @@
 == Roughness Tab ==
-[[File:DefShdr_02-2_GUI_RoughnessTab.png|none|470px|Roughness Tab]]
+[[File:DefShdr_02-3_GUI_RoughnessTab.png|none|470px|Roughness Tab]]
 Settings on this tab control the smoothness of a surface. All the settings are multiplied together and evaluated to determine the final roughness value. When the combined values evaluate to 0 a perfectly smooth surface will result and reflections will be sharp and mirror-like.  Rougher surfaces are the result of values closer to 1.0 and will make reflections appear more blurry.
 <br />
@@ Line 124: / Line 124: @@
 == Specular Tab ==
-[[File:DefShdr_03_GUI_SpecularTab.png|none|470px|Specular Tab]]
+[[File:DefShdr_03-2_GUI_SpecularTab.png|none|470px|Specular Tab]]
 <br />
 <span style="color:red">For documentation of Specular tab settings prior to Terragen 4.5 click [[Default_Shader_-_Specular_Tab|<span style="color:red"><b>here</b></span>]].</span>
@@ Line 192: / Line 192: @@
 <br />
 == Displacement Tab ==
-[[File:DefShdr_04_GUI_DisplacementTab.png|none|470px|Displacement Tab]]
+[[File:DefShdr_04-2_GUI_DisplacementTab.png|none|470px|Displacement Tab]]
 The settings found under this tab allow you to control the three dimensional displacement of the surface.  Displacement is only applied if an image is specified in the “Displacement image” setting, or shader or function nodes assigned to the “Displacement function” setting.

@@ Line 107: / Line 107: @@
 </ul>
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.
 * '''Remap ^2: '''Changes the roughness curve by squaring the values in the image. This improves compatibility with many third-party PBR shaders. If "Invert (gloss map)" is enabled, the squaring occurs after the inversion.
 * '''Gamma (deprecated): '''When enabled, or checked, assumes the image assigned to the “Roughness image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
 * '''Roughness function: '''This setting allows you to assign shader or function nodes to determine the surface’s roughness value.

@@ Line 107: / Line 107: @@
 </ul>
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.
-* '''Remap ^2: '''Changes the curve from black to white by squaring the values in the image. This improves compatibility with many third-party PBR shaders. If "Invert (gloss map)" is enabled, remapping occurs after the inversion.
+* '''Remap ^2: '''Changes the roughness curve by squaring the values in the image. This improves compatibility with many third-party PBR shaders. If "Invert (gloss map)" is enabled, the squaring occurs after the inversion.
 * '''Invert (gloss map): '''When enabled, or checked, the image assigned to the “Roughness image” is inverted, i.e. black becomes white. This allows you to use gloss maps or shininess maps instead of roughness maps.
 * '''Gamma (deprecated): '''When enabled, or checked, assumes the image assigned to the “Roughness image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.

@@ Line 107: / Line 107: @@
 </ul>
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.
-* '''Invert image: '''When enabled, or checked, the image assigned to the “Roughness image” is inverted, i.e. black becomes white.
+* '''Remap ^2: '''Changes the curve from black to white by squaring the values in the image. This improves compatibility with many third-party PBR shaders. If "Invert (gloss map)" is enabled, remapping occurs after the inversion.
 * '''Gamma (deprecated): '''When enabled, or checked, assumes the image assigned to the “Roughness image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
 * '''Roughness function: '''This setting allows you to assign shader or function nodes to determine the surface’s roughness value.

@@ Line 234: / Line 234: @@
 |}
 </ul>
-* ''' Gamma image: '''When enabled, or checked, assumes the image assigned to the “Displacement image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
+* ''' Gamma (deprecated): '''When enabled, or checked, assumes the image assigned to the “Displacement image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
 * ''' Displacement function: '''This setting allows you to assign shader or function nodes to use as displacement for the surface.
 <ul>

@@ Line 108: / Line 108: @@
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.
 * '''Invert image: '''When enabled, or checked, the image assigned to the “Roughness image” is inverted, i.e. black becomes white.
-* '''Gamma image: '''When enabled, or checked, assumes the image assigned to the “Roughness image” is in sRGB colour space and needs to be converted to linear colour space.
+* '''Gamma (deprecated): '''When enabled, or checked, assumes the image assigned to the “Roughness image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
 * '''Roughness function: '''This setting allows you to assign shader or function nodes to determine the surface’s roughness value.
 * '''Specular roughness model: '''This popup menu has three options for choosing the type of specular roughness model used on the surface.
@@ Line 131: / Line 131: @@
 ''' Metalness '''
-Generally speaking, a surface is either metal or it’s not.  The combined (multiplied) values of the “Metalness”, “Metalness image”, “Gamma image” and “Metalness function” settings should always evaluate to 1.0 for a metal material or 0.0 for a non-metal.  Note, greyscale values can be used to denote where non-metal materials, such as dirt or grime occur on the metal surface.
+Generally speaking, a surface is either metal or it’s not.  The combined (multiplied) values of the “Metalness”, “Metalness image” and “Metalness function” settings should always evaluate to 1.0 for a metal material or 0.0 for a non-metal.  Note, greyscale values can be used to denote where non-metal materials, such as dirt or grime occur on the metal surface.
 <!-- ''' Settings: ''' -->
@@ Line 160: / Line 160: @@
 </ul>
-* '''Gamma image: ''' When enabled, or checked, assumes the image assigned to the “Metalness image” is in sRGB colour space and needs to be converted to linear colour space.
+* '''Gamma image: ''' This setting has been removed.
 * '''Metalness function: ''' This setting allows you to assign shader or function nodes to determine the surface’s metalness value.  A value of 1.0 (sRGB 255,255,255) indicates a metal material and a value of 0 indicates a non-metal material.
 <ul>
@@ Line 234: / Line 234: @@
 |}
 </ul>
-* ''' Gamma image: '''When enabled, or checked, assumes the image assigned to the “Displacement image” is in sRGB colour space and needs to be converted to linear colour space.
+* ''' Gamma image: '''When enabled, or checked, assumes the image assigned to the “Displacement image” is in sRGB colour space (or some other space if colour management is enabled) and needs to be converted to linear colour space. This setting is deprecated, i.e. it will be removed in future versions.
 * ''' Displacement function: '''This setting allows you to assign shader or function nodes to use as displacement for the surface.
 <ul>

@@ Line 104: / Line 104: @@
 * '''Roughness: '''This value should be set to 0 for perfectly smooth surfaces and up to 1.0 for rougher surfaces.
 <ul>
-[[File:Wiki_DefShdr_133_RoughnessGreenYellowGold.jpg|none|800px|Roughness setting on dark and light coloured dielectric (non-metal) surface, and light coloured conductor (metal) surface.]]
+[[File:Wiki_DefShdr_133-2_RoughnessGreenYellowGold.jpg|none|800px|Roughness setting on dark and light coloured dielectric (non-metal) surface, and light coloured conductor (metal) surface.]]
 </ul>
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.

@@ Line 103: / Line 103: @@
 '''Settings: '''
 * '''Roughness: '''This value should be set to 0 for perfectly smooth surfaces and up to 1.0 for rougher surfaces.
 * '''Roughness image: '''This setting allows you to specify an image file to use for roughness.
 * '''Invert image: '''When enabled, or checked, the image assigned to the “Roughness image” is inverted, i.e. black becomes white.
@@ Line 168: / Line 171: @@
 * '''Fresnel reflectivity: '''This sets the intensity of the Fresnel effect.  In Terragen 4.5 this defaults to 0.75.
 <ul>
-[[File:Wiki_DefShdr_91-2_SpecularTab_FresnelReflectivty1k.jpg|none|800px|Fresnel reflectivity on non-metal (Dielectric) surface with various Reflection values.]]
+[[File:Wiki_DefShdr_134_SpecularTab_FresnelReflectivty_BlueBlackGrey.jpg|none|800px|Fresnel reflectivity on non-metal (Dielectric) surface with various Reflection values.]]
 </ul>
 * '''Reflectivity image: '''This setting allows you to specify an image file to use for the intensity of the Fresnel effect and where it is visible on the surface.

@@ Line 85: / Line 85: @@
 {|
 |-
 | [[File:specmodels_v2_Conductive_FrontLit.jpg|none|800px|Specular roughness models on conductor (metal) surface with front lighting.]]
 |-
 | [[File:specmodels_v2_Conductive_TopLit.jpg|none|800px|Specular roughness models on conductor (metal) surface with top lighting.]]
 |} <br />
 <!-- {|

@@ Line 86: / Line 86: @@
 {|
 |-
-| [[File:specmodels_v2_Conductor.jpg|none|800px|Specular roughness models on conductor (metal) surface with front lighting.]]
+| [[File:specmodels_v2_Conductive_FrontLit.jpg|none|800px|Specular roughness models on conductor (metal) surface with front lighting.]]
 |-
-| [[File:specmodels_v2_Conductor_TopLit.jpg|none|800px|Specular roughness models on conductor (metal) surface with top lighting.]]
+| [[File:specmodels_v2_Conductive_TopLit.jpg|none|800px|Specular roughness models on conductor (metal) surface with top lighting.]]
 |-
-| [[File:specmodels_v2_Dielectric.jpg|none|800px|Specular roughness models on dielectric (non-metal) surface with front lighting.]]
+| [[File:specmodels_v2_Dielectric_TopLit.jpg|none|800px|Specular roughness models on dielectric (non-metal) surface with front lighting.]]
 |} <br />
 <!-- {|