WorldVertexTransition

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!

Note:This shader now only works on displacements.

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 EDIT: What does "whole material" mean?)
• $detail (whole material only)
• $envmap (will disable $blendmodulatetexture if both used)
• Todo: $outline?
• $translucent and $alpha (whole material only)

See also

• LightmappedGeneric
• Lightmapped_4WayBlend
• WorldTwoTextureBlend
• LightmappedTwoTexture
• Displacement