$displacementmap: Difference between revisions

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It's the most realistic of all the texture shadowing techniques, but consequently is also the most [[expensive]].
It's the most realistic of all the texture shadowing techniques, but consequently is also the most [[expensive]].


It requires a model compiled with [[$subd]]. For best results use a relatively high tessellation level.


{{TODO|Find when it was added into the engine, the earliest example appears to be in [[Alien Swarm]] although it works in SFM}}
{{TODO|Find when it was added into the engine, the earliest example appears to be in [[Alien Swarm]] although it works in SFM}}


==Syntax==
==Syntax==
  $displacementmap <name>
  $displacementmap <[[texture]]>
$displacementwrinkle <[[bool]]>


==External Links==
==External links==
*[http://youtu.be/2pSf6xYv3mg The shader parameter in use]
*[http://youtu.be/2pSf6xYv3mg The shader parameter in use]


[[Category:List of Shader Parameters|D]]
[[Category:Shader parameters|d]]

Latest revision as of 01:34, 6 January 2024

The $displacementmap command is an alternative to $bumpmap that uses a heightmap to give the illusion of depth.

It's the most realistic of all the texture shadowing techniques, but consequently is also the most expensive.

It requires a model compiled with $subd. For best results use a relatively high tessellation level.

Todo: Find when it was added into the engine, the earliest example appears to be in Alien Swarm although it works in SFM

Syntax

$displacementmap <texture>
$displacementwrinkle <bool>

External links