Difference between revisions of "$bumpmap"

Revision as of 13:59, 12 February 2008

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The $bumpmap VMT parameter specifies the VTF texture to use for the 'bump' or normalmap of the material surface.

"$bumpmap" <texture>

<texture> is the name of the VTF texture to be used as the bumpmap/normalmap.
The .vtf file extension is not used in VMT texture references.
The name can be preceeded by the filepath relative to the game_directory/materials folder.
Example: "$bumpmap" "Path/Texture1_normal"

$bumpscale <float (1)>: Scales the $bumpmap by the float value.; Note:Currently only used by shadertest materials. Likely an old DirectX 8 fallback shader, later replaced by the DirectX 8 version of the $bumptransform parameter.
$bumpframe <integer (0)>: Frame number to use from an animated bumpmap texture.
$bumptransform <matrix (center .5 .5 scale 1 1 rotate 0 translate 0 0)>: Transforms the bumpmap texture.
$bumpmap2 <texture>: Used by the WorldVertexTransition shader to blend materials on Displacement surfaces (eg terrain).; The percentage blend of each of the two textures is defined by alpha painting in Hammer.; DirectX 9 required.
$bumpframe2 <integer (0)>: Frame number for $bumpmap2.; DirectX 9 required.
$nodiffusebumplighting <boolean (0)>: If set to 1, no diffuse bump lighting will be done.; See Dealing with fillrate issues.; Requires LightmappedGeneric shading.
$forcebump <boolean (0)>: If set to 1, always does bumpmapping (even if the graphics card doesn't say it can handle it).; Requires DirectX 8.

@@ Line 21: / Line 21: @@
 :Transforms the bumpmap texture.
 ;<code>$bumpmap2 <texture> </code>
-:Used by the [[WorldTwoTextureBlend]] shader to blend materials on [[Displacement]] surfaces (eg terrain).
+:Used by the [[WorldVertexTransition]] shader to blend materials on [[Displacement]] surfaces (eg terrain).
 :The percentage blend of each of the two textures is defined by alpha painting in Hammer.
 :DirectX 9 required.