Albedo map - Revision history

Windwalkr at 03:26, 6 June 2018

2018-06-06T03:26:01Z

← Older revision		Revision as of 03:26, 6 June 2018
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	If no alpha channel is specified, the outcome is identical to a fully white (1.0) alpha channel.		If no alpha channel is specified, the outcome is identical to a fully white (1.0) alpha channel.

	Some legacy [[Material Types\|material types]] offer automatic selection of [[alpha blending]], [[alpha masking]] or opaque rendering modes based on the contents and configuration of the albedo map. This introduces uncertainties when texture replacement is used as to what material configuration will result. [[~~TRS18~~]] materials do not attempt this, and instead rely on the content creator to select the appropriate material type.		Some legacy [[Material Types\|material types]] offer automatic selection of [[alpha blending]], [[alpha masking]] or opaque rendering modes based on the contents and configuration of the albedo map. This introduces uncertainties when texture replacement is used as to what material configuration will result. [[TRS19]] materials do not attempt this, and instead rely on the content creator to select the appropriate material type.

Windwalkr at 10:38, 24 October 2017

2017-10-24T10:38:35Z

← Older revision		Revision as of 10:38, 24 October 2017
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	The albedo map defines the base RGB color of each [[texel]]. It is configured using a [[texture.txt file]] which is directly referenced from the material (usually within a [[mesh file]] although sometimes from the asset's [[config.txt]] directly).		The albedo map defines the base RGB color of each [[texel]]. It is configured using a [[texture.txt file]] which is directly referenced from the material (usually within a [[mesh file]] although sometimes from the asset's [[config.txt]] directly).

			The albedo map is the [[Physically Based Rendering]] equivalent of the ''diffuse map'' used in legacy materials. At a casual glance, these fill the same role and the terms can be interchanged, however to be strictly accurate the albedo is the surface color irrespective of any lighting effects, whereas the diffuse map frequently included burned-in lighting (pre-baked [[ambient occlusion]], etc.) The albedo map should never include pre-baked lighting, as that would interfere with the correct operation of the PBR equations.

	= Color Space =		= Color Space =

Windwalkr at 10:32, 24 October 2017

2017-10-24T10:32:42Z

← Older revision		Revision as of 10:32, 24 October 2017
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	The albedo map defines the base RGB color of each [[texel]]. It is configured using a [[texture.txt file]] which is directly referenced from the material (usually within a [[mesh file]] although sometimes from the asset's [[config.txt]] directly).		The albedo map defines the base RGB color of each [[texel]]. It is configured using a [[texture.txt file]] which is directly referenced from the material (usually within a [[mesh file]] although sometimes from the asset's [[config.txt]] directly).

			= Color Space =
			Unless otherwise specified by the [[Material Types\|material]] in use, the RGB channels use the sRGB color space.

	= Alpha Channel =		= Alpha Channel =

Windwalkr at 10:31, 24 October 2017

2017-10-24T10:31:18Z

← Older revision		Revision as of 10:31, 24 October 2017
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			The albedo map defines the base RGB color of each [[texel]]. It is configured using a [[texture.txt file]] which is directly referenced from the material (usually within a [[mesh file]] although sometimes from the asset's [[config.txt]] directly).

			= Alpha Channel =
			It is common for (semi-)transparent materials to store the alpha blend factor (ie. opacity level) in the albedo map's alpha channel. Materials which are fully opaque may use the albedo's alpha channel for some other purpose, or not at all.

			If no alpha channel is specified, the outcome is identical to a fully white (1.0) alpha channel.

			Some legacy [[Material Types\|material types]] offer automatic selection of [[alpha blending]], [[alpha masking]] or opaque rendering modes based on the contents and configuration of the albedo map. This introduces uncertainties when texture replacement is used as to what material configuration will result. [[TRS18]] materials do not attempt this, and instead rely on the content creator to select the appropriate material type.


			= Examples =

	''TBD: See [[Normal map]] for examples.''		''TBD: See [[Normal map]] for examples.''

	~~If no alpha channel is specified, the diffuse map will default to a full white alpha channel.~~

	The alpha channel in the diffuse map has a context-sensitive interpretation. In gloss and bump-gloss materials, the alpha channel indicates a blend between the gloss reflection (black alpha) and the diffuse texture color (white alpha).

	In most other materials, the alpha channel is used as an opacity control with black being full transparency and white being fully opaque. This is referred to as "alpha blending". As a special case of this technique, a diffuse texture may have its entire alpha channel set to either pure black or pure white, with no grays used. This specialization is often referred to as "alpha masking".

	[[Category:Texture mapping]]		[[Category:Texture mapping]]

Windwalkr: Windwalkr moved page Diffuse map to Albedo map

2017-10-24T10:17:31Z

Windwalkr moved page Diffuse map to Albedo map

← Older revision	Revision as of 10:17, 24 October 2017
(No difference)

Retro00064: Added Category:Texture mapping.

2011-09-05T01:59:15Z

Added Category:Texture mapping.

← Older revision		Revision as of 01:59, 5 September 2011
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	''TBD: See [[Normal map]] for examples.''		''TBD: See [[Normal map]] for examples.''

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	In most other materials, the alpha channel is used as an opacity control with black being full transparency and white being fully opaque. This is referred to as "alpha blending". As a special case of this technique, a diffuse texture may have its entire alpha channel set to either pure black or pure white, with no grays used. This specialization is often referred to as "alpha masking".		In most other materials, the alpha channel is used as an opacity control with black being full transparency and white being fully opaque. This is referred to as "alpha blending". As a special case of this technique, a diffuse texture may have its entire alpha channel set to either pure black or pure white, with no grays used. This specialization is often referred to as "alpha masking".

			[[Category:Texture mapping]]

Windwalkr: 1 revision

2010-02-03T13:58:52Z

1 revision

← Older revision	Revision as of 13:58, 3 February 2010
(No difference)

Windwalkr at 05:09, 20 August 2008

2008-08-20T05:09:45Z

New page

''TBD: See [[Normal map]] for examples.''

If no alpha channel is specified, the diffuse map will default to a full white alpha channel.

The alpha channel in the diffuse map has a context-sensitive interpretation. In gloss and bump-gloss materials, the alpha channel indicates a blend between the gloss reflection (black alpha) and the diffuse texture color (white alpha).

In most other materials, the alpha channel is used as an opacity control with black being full transparency and white being fully opaque. This is referred to as "alpha blending". As a special case of this technique, a diffuse texture may have its entire alpha channel set to either pure black or pure white, with no grays used. This specialization is often referred to as "alpha masking".