$phong: Difference between revisions
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Note:Phong shading for 
. It requires the material to be lit by the sunlight from a env_cascade_light entity to work properly, and uses the dynamic shadows generated by it as a mask on top of the traditional phong masking.
Note:Phong shading for 
, but it is implemented differently.
Note:All parameters in the following example must be specified in the material, otherwise Phong shading won't show up at all, except in 
.
(Added description for how phongwarptexture works and illustration of computed coordinates) |
Deprecated (talk | contribs) (Added brush phong image, added a note about $phongdisablehalflambert in CSGO) |
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{{Shaderparam|$phong|since=Source 2006|shader1=VertexLitGeneric|shader2=LightmappedGeneric|shader3=WorldVertexTransition}} It provides diffuse reflections, masked by a texture to control its intensity per-texel. For a full explanation, see [[Phong materials]]. | {{Shaderparam|$phong|since=Source 2006|shader1=VertexLitGeneric|shader2=LightmappedGeneric|shader3=WorldVertexTransition}} It provides diffuse reflections, masked by a texture to control its intensity per-texel. For a full explanation, see [[Phong materials]]. | ||
{{Note|Phong shading for <code>LightmappedGeneric</code> and <code>WorldVertexTransition</code> is only available in {{csgo}}. It requires the material to be lit by a {{ent|env_cascade_light}} entity to work properly, and uses the dynamic shadows generated by it as a mask on top of the traditional phong masking.}} | {{Note|Phong shading for <code>LightmappedGeneric</code> and <code>WorldVertexTransition</code> is only available in {{csgo}}. It requires the material to be lit by the sunlight from a {{ent|env_cascade_light}} entity to work properly, and uses the dynamic shadows generated by it as a mask on top of the traditional phong masking.}} | ||
{{Note|Phong shading for <code>LightmappedGeneric</code> is also available in {{mapbase}}.}} | {{Note|Phong shading for <code>LightmappedGeneric</code> is also available in {{mapbase}}, but it is implemented differently.}} | ||
==Syntax== | ==Syntax== | ||
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:{{note|<code>$envmap</code> is also affected by these fresnel ranges if both it and Phong are enabled in a material.}} | :{{note|<code>$envmap</code> is also affected by these fresnel ranges if both it and Phong are enabled in a material.}} | ||
:{{note| drives the x component of a phongwarptexture if specified.}}|shaders=VertexLitGeneric, LightmappedGeneric({{mapbase}})}} | :{{note| drives the x component of a phongwarptexture if specified.}}|shaders=VertexLitGeneric, LightmappedGeneric({{mapbase}})}} | ||
{{MatParam|$phongdisablehalflambert|bool|Disables forced [[$halflambert|half-lambertian]] shading on Phong materials.|since={{as}}|also={{Mapbase}}|shaders=VertexLitGeneric}} | {{MatParam|$phongdisablehalflambert|bool|Disables forced [[$halflambert|half-lambertian]] shading on Phong materials. {{note|This parameter is effectively forced on in {{csgo}} due to <code>$halflambert</code> being disabled.}}|since={{as}}|also={{Mapbase}}|shaders=VertexLitGeneric}} | ||
=== Colors === | === Colors === | ||
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: The highlight is multiplied with a texture. The coordinates of the sampled pixel are as follows: | : The highlight is multiplied with a texture. The coordinates of the sampled pixel are as follows: | ||
:x: 1 - (distance to the center of the highlight) | :x: 1 - (distance to the center of the highlight) | ||
:y: 1 - (fresnel component as computed by [[Phong materials#Phong Fresnel ranges|Phong Fresnel ranges]]) | :y: 1 - (fresnel component as computed by [[Phong materials#Phong Fresnel ranges|Phong Fresnel ranges]]) | ||
: {{note|Disables the initial phongfresnelranges masking}} | : {{note|Disables the initial phongfresnelranges masking}} | ||
: {{bug|Does not work in {{l4d2}}, despite the game being released in 2009.}}|since={{src07}}|shaders=VertexLitGeneric}} | : {{bug|Does not work in {{l4d2}}, despite the game being released in 2009.}}|since={{src07}}|shaders=VertexLitGeneric}} | ||
[[File:Brush_phong.jpg|thumb|200px|Brush phong in {{csgo}}. Note the complete absence of the reflection in the shaded area.]] | |||
=== Brush Shader Parameters === | === Brush Shader Parameters === | ||
Revision as of 23:30, 10 October 2021
Template:Shaderparam It provides diffuse reflections, masked by a texture to control its intensity per-texel. For a full explanation, see Phong materials.
Note:Phong shading for LightmappedGeneric and WorldVertexTransition is only available in . It requires the material to be lit by the sunlight from a env_cascade_light entity to work properly, and uses the dynamic shadows generated by it as a mask on top of the traditional phong masking.Note:Phong shading for LightmappedGeneric is also available in , but it is implemented differently.Syntax
$phong <bool>
Note:All parameters in the following example must be specified in the material, otherwise Phong shading won't show up at all, except in .- Todo: Other games that don't require all phong parameters present (likely Portal 2 and up)
VertexLitGeneric
{
$phong 1
$bumpmap [texture]
$phongexponent 5 // either/or
$phongexponenttexture [texture] // either/or
$phongboost 1.0
$phongfresnelranges "[0 0.5 1]"
}
Parameters
Masking
$bumpmap
$basemapalphaphongmask
$basemapluminancephongmask
$phongexponent
$phongexponenttexture
$phongexponentfactor
$invertphongmask
$forcephong
$diffuseexp
$shinyblood
$shinybloodexponent
Brightness
$phongboost
$phongfresnelranges
$phongdisablehalflambert
Colors
$phongalbedotint
$phongalbedoboost
Brush Shader Parameters
$phongmaskcontrastbrightness
$phongamount
$phongbasetint
Console Commands
- mat_phong <boolean>
- Disable or enable phong shading. Default 1.