$treesway: Difference between revisions
SirYodaJedi (talk | contribs) (Also in hl2dm now) |
SirYodaJedi (talk | contribs) mNo edit summary |
||
| Line 35: | Line 35: | ||
{{MatParam|$treeswayspeedlerpstart|float|Minimum wind speed in which a gust triggered by <code>env_wind</code> will start affecting the material. Default 3.}} | {{MatParam|$treeswayspeedlerpstart|float|Minimum wind speed in which a gust triggered by <code>env_wind</code> will start affecting the material. Default 3.}} | ||
{{MatParam|$treeswayspeedlerpend|float|Minimum wind speed in which a gust triggered by <code>env_wind</code> will fully affect the material. Default 6.}} | {{MatParam|$treeswayspeedlerpend|float|Minimum wind speed in which a gust triggered by <code>env_wind</code> will fully affect the material. Default 6.}} | ||
{{MatParam|$treeswaystatic|float|Use a static wind value instead of the values from <code>env_wind</code>. If enabled, <code>env_wind</code> is not required.|only={{ | {{MatParam|$treeswaystatic|float|Use a static wind value instead of the values from <code>env_wind</code>. If enabled, <code>env_wind</code> is not required.|only={{tf2branch}}{{csgo}}{{GMOD}}{{mapbase}}}} | ||
{{MatParam|$treeswaystaticvalues|vector2|Sets the static wind values used by <code>$treeswaystatic</code>, syntax <code>[x y]</code>. Default <code>[0.5 0.5]</code>.|only={{mapbase}}}} | {{MatParam|$treeswaystaticvalues|vector2|Sets the static wind values used by <code>$treeswaystatic</code>, syntax <code>[x y]</code>. Default <code>[0.5 0.5]</code>.|only={{mapbase}}}} | ||
Revision as of 12:54, 4 December 2024
de_lake in CS:GO (click to preview).$treesway is a material shader parameter for the VertexLitGeneric shader available in all 
Source games since 
Left 4 Dead 2. (also in 
) In , it can also be used for UnlitGeneric.
$treesway morphs the vertices of a mesh with a given material around using the parameters of an env_wind entity to give the appearance of tree leaves and foilage blowing in the wind. The subparameters of $treesway determine how much the env_wind entity should affect the morphing, and all of them (except $treeswaystatic) must be specified in order for the effect to work properly. This shader parameter assumes any model using it is facing upwards.
Note:This shader parameter is disabled by default in the 
SDK. It can re-enabled by modding.
Warning:Due to the way bumped lighting is calculated, $treesway will not sway materials which use $bumpmap.
Bug:
- This shader parameter does not work with $detailtexturetransform.
- In , using a shadow-casting projected texture on materials with this parameter will cause flickering. As a workaround, try to keep trees away from where player flashlights can reach. $halflambert may also partially fix the issue.
- In , using a shadow-casting projected texture will cause shadows not reacting to
$treesway, shadows don't move, expect in.
- Todo: What about[todo tested in ?]
$singlepassflashlightand$flashlightnolambert?
Important:While $TreeSway can be used to animate a prop_static, lightmap shadows casted by swaying static props will remain static.If CSM is unavailable, consider using a prop_dynamic instead. This can be combined with an animation containing more realistic pre-baked wind physics than can be achieved with $treesway.
As prop_dynamic cannot be lit by VRAD per-vertex, it may be desirable to use a pre-baked $lightmap (if available) in such situations, to restore some ambient lighting quality.
Parameters
$treesway
$treeswayheight
$treeswaystartheight
$treeswayradius
$treeswaystartradius
$treeswayspeed
$treeswaystrength
$treeswayscrumblespeed
$treeswayscrumblestrength
$treeswayscrumblefrequency
$treeswayfalloffexp
$treeswayscrumblefalloffexp
$treeswayspeedhighwindmultipler
$treeswayspeedlerpstart
$treeswayspeedlerpend
$treeswaystatic
$treeswaystaticvalues
External links
https://gamebanana.com/tuts/12924 - How to achieve a similar effect without $treeSway, on all source engine games. Alternatively, use an animated prop_dynamic, for a more realistic (but more expensive) effect.