Zh/$phong

Phong shading provides Alyx's skin, hairband and lip highlights.

Template:Shaderparam It provides diffuse reflections at low intensity and specular highlights at apex intensity, masked by a texture which control per-texel its intensity. For a full explanation, see Phong materials.

注意:Phong shading for LightmappedGeneric and WorldVertexTransition is only available in CS：GO 引擎分支. 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:Phong shading for LightmappedGeneric is also available in Mapbase, but it is implemented differently.

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				[texture]
	$phongexponent			5			// either/or
	$phongexponenttexture	[texture]	// 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 $basemapalphaphongmask $basemapluminancephongmask $phongexponent $phongexponenttexture $phongexponentfactor $invertphongmask $forcephong $diffuseexp $shinyblood $shinybloodexponent

亮度

$phongboost $phongfresnelranges $phongdisablehalflambert

色彩

$phongalbedotint $phongalbedoboost

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

$phongtint

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

$phongwarptexture

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(仅存在于 之中)

$phongmaskcontrastbrightness $phongamount $phongbasetint

控制台命令

mat_phong <布尔值(en)>

禁用或启用冯氏反射渲染。默认为 1。

另见

• Phong materials
• $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