$phong/zh

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冯氏着色器为爱莉克斯的皮肤、发带和嘴唇提供了高光。

$phong is a material shader parameter available in all 起源 games since Source 2006 for VertexLitGeneric, LightmappedGeneric, WorldVertexTransition. 它提供低强度的 漫反射 和顶点强度的 镜面高光，由控制每个纹素强度的纹理遮罩。有关完整解释，请参见 冯氏材质。

注意:LightmappedGeneric 和 WorldVertexTransition 的冯氏着色功能只在 CS：GO 引擎分支 中可用。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.

注意:在 Mapbase中也提供了 LightmappedGeneric 的冯氏着色功能，但实现方式有所不同。

语法

$phong <bool>

注意:All parameters in the following example must be specified in the material, otherwise Phong shading won't show up at all, except in Insurgency.

待完善: Other games that don't require all phong parameters present (likely Portal 2 and up)

VertexLitGeneric
{
	$phong 1

	$bumpmap				[贴图]
	$phongexponent			5			// either/or
	$phongexponenttexture	[贴图]	// either/or
	$phongboost				1.0
	$phongfresnelranges		"[0 0.5 1]"
}

参数

蒙版

警告:There are some caveats regarding $normalmapalphaenvmapmask and $selfillumfresnel when using $phong!

• Using $selfillumfresnel without $normalmapalphaenvmapmask will mask the $envmap using the $basetexture's alpha channel.
• Using $selfillumfresnel with $normalmapalphaenvmapmask will multiply the $envmap by 0.0f. Effectively disabling the effect!
• When not using $selfillumfresnel. The mask used for $envmap will be the $basetexture's alpha channel unless $normalmapalphaenvmapmask is also used.
• If $normalmapalphaenvmapmask is used, the $bumpmap's alpha channel will be used for Phong masking. Using either $basemapalphaphongmask or $basemapluminancephongmask will override it.

$bumpmap <texture>

Phong requires mask. The alpha channel of a bump map acts as a Phong mask by default.

$basemapalphaphongmask <boolean> (存在于自 以来)

Shader(s): VertexLitGeneric

Use $basetexture's alpha channel as the Phong mask instead of $bumpmap's alpha channel.

警告:Using this with $normalmapalphaenvmapmask will override the mask used for $envmap to be the contents of the $basetexture's alpha channel!

警告: Garry's Mod Using this with $normalmapalphaenvmapmask and $envmap renders in $envmap and $phong be masked by both $basemapalphaphongmask alpha channel and $normalmapalphaenvmapmask alpha channel.

$basemapluminancephongmask <boolean> (存在于自 以来)

Shader(s): VertexLitGeneric

Mask phong intensity based on the brightness of the $basetexture.

错误:Basetexture Luminance will replace the mask used for $envmap, if $normalmapalphaenvmapmask is used.

错误:Doesn't work in Garry's Mod.

$phongexponent and $phongexponent2 <integer>

A global exponent value. Overrides an exponent mask if present.

$phongexponent2 is for WorldVertexTransition's second material in CS：GO 引擎分支.

$phongexponenttexture <texture>

Shader(s): VertexLitGeneric

A per-texel exponent map. In an exponent map:

• Red channel: Exponent mask (size of highlight, 0-255, where a value of 0 is a large highlight, 255 small.)
• Green channel: Albedo tint mask (only if $phongalbedotint 1, 0-255, where a value of 0 is no tint, 255 full tint.)
• Blue channel: Nothing.
• Alpha channel: $rimlight mask (only if $rimmask 1.)

注意:LightmappedGeneric and WorldVertexTransition do not have support for $phongexponenttexture. You must use $phongexponent instead.

$phongexponentfactor <float> (only in )

Shader(s): VertexLitGeneric

Multiply the exponent from the $phongexponenttexture by this amount.

提示: The default value of this parameter is "0.0". However, a more reasonable default value would be "149.0"

$invertphongmask <boolean> (存在于自 以来)

Shader(s): VertexLitGeneric

Invert the value of the phong mask.

错误:In s and s Shadercode, using this parameter will invert the mask used for $envmap, not the one used for $phong!

证实: Is this the case for all branches?

$forcephong <boolean> (存在于自 以来)

Shader(s): VertexLitGeneric

Force phong shading on phong-using materials even at low GPU levels when mat_phong is disabled.

$diffuseexp <float> (only in )

Shader(s): VertexLitGeneric, Infected

Diffuse exponent used for dynamic lights only.

注意:have this with $halflambert greatly decrease it effect.

$shinyblood <integer> (only in )

Shader(s): VertexLitGeneric, Infected

Derive phong mask from areas that are more red than others. Only when variation is disabled.

$shinybloodexponent <integer> (only in )

Shader(s): VertexLitGeneric, Infected

Exponent for the above.

亮度

$phongboost <float>

Shader(s): VertexLitGeneric, LightmappedGeneric((only in ))

Phong brightness factor. Larger values create a more intense highlight, useful for surfaces like metal and glass.

$phongfresnelranges <matrix>

Shader(s): VertexLitGeneric, LightmappedGeneric((only in ))

See Phong Fresnel ranges. Default is "[0 0.5 1]".

注意:$envmap is also affected by these fresnel ranges if both it and Phong are enabled in a material.

注意: drives the x component of a phongwarptexture if specified.

$phongdisablehalflambert <boolean> (存在于自 以来) (也存在于 之中)

Shader(s): VertexLitGeneric

Disables forced half-lambertian shading on Phong materials.

注意:This parameter is effectively forced on in CS：GO 引擎分支 due to $halflambert being disabled.

色彩

$phongalbedotint <boolean> (存在于自 以来)

Shader(s): VertexLitGeneric

Tints the phong reflection by the color of the $basetexture. The amount of tint is defined by the green channel of $phongexponenttexture. A $phongexponenttexture must be specified in order for $phongalbedotint to work.

警告:$phongalbedotint cannot be used with $phongtint. The later will disable the effect.

注意:$phongalbedotint works by multiplying the $basetexture over the reflection, without darkening the albedo. The reflection will get dimmer as a result, so account for this in the phong mask or with $phongboost.

注意:$phongalbedotint will tint highlights by the original color of the $basetexture even when the material is tinted by $color2 or rendercolor.

$phongalbedoboost <float> (存在于自 以来)

Shader(s): VertexLitGeneric

Phong albedo overbrightening factor. Ranges 0-255.

注意: This will multiply the tint that is being applied to phong from $phongalbedotint.

错误:This does not work when using $detail.

The Hunter without and with its $phongwarptexture, showing how it affects the Phong reflection.

$phongtint <RGB matrix> (存在于自 以来)

Shader(s): VertexLitGeneric

Color tint of the phong reflection.

警告:This will override $phongalbedotint if both are used.

注意: Also tints $rimlight

Breakdown of the $phongwarptexture: computed coordinates, texture and result

$phongwarptexture <texture> (存在于自 以来)

Shader(s): VertexLitGeneric

Used to create an iridescence effect, as seen on Episode Two's Hunters.

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)

y: 1 - (fresnel component as computed by Phong Fresnel ranges)

注意:Disables the initial phongfresnelranges masking

错误:在 求生之路2 中不起作用。

Brush phong in 反恐精英：全球攻势 using tile/hr_t/inferno/tile_a. Note the complete absence of the reflection in the shaded area.

笔刷/固体着色器参数(only in )

$phongmaskcontrastbrightness and $phongmaskcontrastbrightness2 <vector2>

Shader(s): LightmappedGeneric, WorldVertexTransition

The first value controls the contrast level between light and dark areas in the mask, and the second value controls the overall brightness.

$phongmaskcontrastbrightness2 is for WorldVertexTransition's second material.

待完善: Find out the range of both values.

$phongamount and $phongamount2 <vector4>

Shader(s): LightmappedGeneric, WorldVertexTransition

The first 3 values control the color tint, and the fourth value controls the brightness. The fourth value can go beyond 1, but affects the brightness of the whole texture, not just the highlight.

$phongamount2 is for WorldVertexTransition's second material.

$phongbasetint and $phongbasetint2 <float>

Shader(s): LightmappedGeneric, WorldVertexTransition

Allows the $basetexture and/or $basetexture2 to tint the color of the Phong highlight.

控制台命令

mat_phong <boolean>

禁用或启用冯氏反射渲染。默认为 1。

另见

• 冯氏材质
• $envmap（环境贴图）
• $lightwarptexture
• $rimlight
• $Phong on brushes*: The Hacky Way (a TF2maps.net guide on how to fake $Phong on brushes for games prior to CS:GO)
• SubstancePainter Source Engine Complex Phong Shader