WorldVertexTransition
From Valve Developer Community

Application without and with
$blendmodulatetexture
.WorldVertexTransition
is the shader used to blend the vertices of a displacement surface between two different materials. It handles two at once by using a mirrored set of parameters with "2" in their name.
The pattern of the blend is defined by Hammer's alpha painting tool. The blend is normally a linear gradient, but it can also be "stamped" by a texture specified with $blendmodulatetexture
. This command makes the material look considerably better for very little cost - use it often!

Example
WorldVertexTransition { $basetexture nature/dirtfloor006a $surfaceprop dirt $basetexture2 nature/rockfloor005a $surfaceprop2 rock %tooltexture nature/blendrockgrass004a_tooltexture }
- Just about all visual effects can be selectively applied to one sub-material or the other. See the relevant articles for more details.
- The Hammer material browser won't be able to display a preview of the material unless it's given a
%tooltexture
.
Supported effects
-
$blendmodulatetexture
-
$seamless_scale
-
$bumpmap
-
$ssbump
(whole material only) -
$detail
(whole material only) -
$envmap
(will disable$blendmodulatetexture
if both used) - To do:
$outline
? -
$translucent
and$alpha
(whole material only)