Difference between revisions of "$basetexture"

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Some shaders (most notably [[WorldVertexTransition]]) allow the use of two albedos. The second texture is handled by a mirrored set of commands with '2' in their name:
 
Some shaders (most notably [[WorldVertexTransition]]) allow the use of two albedos. The second texture is handled by a mirrored set of commands with '2' in their name:
 
{{MatParam|$basetexture2|texture}}
 
{{MatParam|$basetexture2|texture}}
{{MatParam|$basetexturetransform2|matrix|{{bug|<code>$basetexturetransform2</code> doesn't seem to work in Source 2007 [http://forums.steampowered.com/forums/showpost.php?p{{=}}7669785&postcount{{=}}4 source].}}}}
+
{{MatParam|$basetexturetransform2|matrix|{{bug|<code>$basetexturetransform2</code> doesn't exist in the DX9 version of WorldVertexTransition, only working with the DX8 shader. <code>$basetexture2</code> will instead use the original <code>$basetexturetransform</code>. This is the case in Source 2007, Source 2013, and Alien Swarm. Other games have not been tested.}}}}
 
{{MatParam|$basetextureoffset2|normal|{{confirm|Does this parameter and the one below it even exist?}}}}
 
{{MatParam|$basetextureoffset2|normal|{{confirm|Does this parameter and the one below it even exist?}}}}
 
{{MatParam|$basetexturescale2|normal}}
 
{{MatParam|$basetexturescale2|normal}}

Revision as of 16:47, 25 August 2019

Русский

$basetexture is a material shader parameter available in all Source games. It defines an albedo texture. It is very rare for a material not to use this parameter and some shaders will load a default texture if it stays undefined.

VMT syntax

$basetexture	<texture without extension, relative to <game>\materials\>
LightmappedGeneric
{
	$basetexture	brick\brickwall031b
}

Additional parameters

$basetexturetransform <matrix>
Transforms the texture before use in the material. This does not affect lightmaps on the surface.
The default position is "center .5 .5 scale 1 1 rotate 0 translate 0 0".
  1. center defines the point of rotation. Only useful if rotate is being used.
  2. scale fits the texture into the material the given number of times. '2 1' is a 50% scale in the X axis.
  3. rotate rotates the texture counter-clockwise in degrees. Accepts any number, including negatives.
  4. translate shifts the texture by the given numbers. '.5' will shift it half-way.
Note:All values must be included!
Bug: Scaling the texture may cause odd issues where the Texture Lock tool in Hammer will not actually lock the texture in place.
Bug: Rotating textures applied on brushes will rotate around the map origin (confirm: Orangebox engine only?). A fix for this is to change the center position in the VMT to the brush's origin.
$basetextureoffset <normal>
To do: DX8 version of translate?
$basetexturescale <normal>
To do: DX8 version of scale?
$frame <integer>
The frame displayed for a multi-frame texture. This is normally set by the AnimatedTexture or TextureToggle proxies, but can be set manually. The value must be a valid index, or crashes might occur.

$basetexture2

Some shaders (most notably WorldVertexTransition) allow the use of two albedos. The second texture is handled by a mirrored set of commands with '2' in their name:

$basetexture2 <texture>
$basetexturetransform2 <matrix>
Bug: $basetexturetransform2 doesn't exist in the DX9 version of WorldVertexTransition, only working with the DX8 shader. $basetexture2 will instead use the original $basetexturetransform. This is the case in Source 2007, Source 2013, and Alien Swarm. Other games have not been tested.
$basetextureoffset2 <normal>
Confirm:Does this parameter and the one below it even exist?
$basetexturescale2 <normal>
$frame2 <integer>

There are further '2' commands applying to various shader effects, which are each documented in their respective articles.

See Also