$ssbump: Difference between revisions
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Tip:Self-shadowed normal mapping is actually faster than the standard method!
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'''$ssbump''' is a | '''$ssbump''' is a [[material]] parameter that flags a [[$bumpmap]] as being self-shadowing. It is only supported with <code>[[LightmappedGeneric]]</code>. | ||
You can read more about the technology behind it [http://www.valvesoftware.com/publications/2007/SIGGRAPH2007_EfficientSelfShadowedRadiosityNormalMapping.pdf in this paper]. | |||
{{tip|Self-shadowed normal mapping is actually ''faster'' than the standard method!}} | |||
== Example == | == Example == | ||
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$basetexture nature/rockwall_cave02a | $basetexture nature/rockwall_cave02a | ||
$surfaceprop concrete | $surfaceprop concrete | ||
$bumpmap | $bumpmap nature/rockwall_cave_02a_height-ssbump | ||
'''$ssbump 1''' | '''$ssbump 1''' | ||
} | } | ||
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== Creating self-shadowing bump maps == | == Creating self-shadowing bump maps == | ||
... | Valve's tools for creating ssbumps aren't in the SDK yet, [http://forums.facepunchstudios.com/showthread.php?t=529746 but there is a way to create them manually]. | ||
[[Category:List of Shader Parameters|S]] | [[Category:List of Shader Parameters|S]] | ||
Revision as of 06:08, 18 September 2008
$ssbump is a material parameter that flags a $bumpmap as being self-shadowing. It is only supported with LightmappedGeneric.
You can read more about the technology behind it in this paper.
Tip:Self-shadowed normal mapping is actually faster than the standard method!Example
LightmappedGeneric
{
$basetexture nature/rockwall_cave02a
$surfaceprop concrete
$bumpmap nature/rockwall_cave_02a_height-ssbump
$ssbump 1
}
Creating self-shadowing bump maps
Valve's tools for creating ssbumps aren't in the SDK yet, but there is a way to create them manually.