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LUX是一个专门为 起源2013 单人分支和 起源2013 多人分支制作和开发的模组，其目的皆在为完全重写所有原版和 Mapbase的着色器

目标

• 大修\清理materialsystem\stdshaders\目录

警告:除了现有的着色器编译功能外，几乎所有的东西都被“扬了”。

Notice: 实现 LUX的着色器需要将stdshaders/替换为 LUX自己的，这“有效”的扬了所有原版着色器的修改版，LUX应该能够实现所有和着色器原有的功能

注意:SDK着色器会自动回退到对应的 LUX版本，这样使用 Mapbase的模组无需太多改动就可以使用LUX

• 大幅减少所有着色器的编译时间

Why?: 在，V社的着色器需要非常长的时间进行编译。尤其是在使用原版编译器的情况下。这限制了着色器的修改

Notice: 即便使用高端CPU也至少需要半天或更久的时间进行编译。以 LUX为例，在4核@4.1Hz环境下编译整个LUX_Lightmappedgeneric仅需要大约30秒

• 着色器仅使用SM 3.0

Why?: ps20b及以下有太多限制。缺少可用的常量寄存器会导致极端分支和大量“组合”。使代码变成一坨难以阅读和理解的屎山。这会抑制模组制作者的积极性。

注意:SM3.0于2004年发布，V社在2008年考虑到了ps2.0及以下的低端硬件。详见幻灯片第8页

注意:这意味着不支持SM3.0的低端硬件将无法使用新的着色器

Notice: Linux和MacOS暂无官方支持。以上系统用户需要使用togl进行补丁才能使用SM3.0，或使用DXVK

• 完全重写.h, .cpp, .fxc文件
• 更多有关着色器、自身参数、如何工作以及任何可能的注意事项的文档

Notice: 你可能已经注意到了如$lightwarptexture、$detail、UnlitTwoTexture、$envmapmask得到了由ShiroDkxtro2贡献的重大更新

他为添加了新的注意事项和bug记录。这些文档是 LUX开发的直接结果，尽管开发的重点集中在上，因为他们是开源项目

注意:目前缺少有关着色器如何在起源中工作的文档，这导致起源的图形学领域门槛很高，需要有大量的相关经验，阻碍了模组制作者们修改着色器和创作自己的

• 实现没有的内容

参见:  计划实现的功能. 这个目标包含了例如$selfillumtexture的旧功能和例如$phongalbedoboost(仅存在于 csgo 之中)的新功能

• 修复大多数参数的Bug和警告

参见:  原版着色器与LUX着色器对比

• 禁用特定功能的简单方法

注意:已制作一个自定义的预处理程序，可以通过禁用不需要的功能来使着色器编译的更快

• 对Mapbase的兼容性

Notice: 要替换其他mod（如Source 2013社区版，以Mapbase为本体的mod）修改的原版着色器，应该和直接替换stdshaders\目录一样简单

注意: 以上假定除修改的原版着色器外无其他的自定义着色器，但如果确实有，开发者应该能将它们添加回来，因为这是添加自定义着色器的先决条件

计划实现的功能

这是正在实施的新功能列表，或者将从较新的引擎分支移植/复刻的功能，例如

注意:该语境下的被移植“对象”通常指 异形丛生 Mapbase，但在多数情况下，其代码会出于简化或大修的目的而进行大量修改

重要: LUX不使用任何的泄露代码。像$phongalbedoboost(仅存在于 csgo 之中)这样的功能不是什么难以实现的东西，它们可以在不使用泄露代码的情况下安全的复现

警告:对于更复杂的功能，与V社的实现方法相比可能存在视觉差异。

出于 Mapbase兼容性而需实现的功能

• 来自的$phongdisablehalflambert+
• 所有“几何”用着色器的径向雾
• Spline-Ropes
• 视差修正反射贴图

注意:就像 Mapbase一样，视差反射需要自定义的地图编译器

重要:和参数是一样的，所以Mapbase的地图编译器也可以使用

• VertexLitGeneric上同时使用$envmapmask 反射遮罩和$bumpmap 法线贴图的支持
• 控制器着色器"Postprocessing"的替代品
• 来自的着色器"Engine_post"替代品
• $blendmodulatetexture的Hammer内预览修复
• 固体用漫反射
• 树叶飘动

待完善: 这真的是移植自的功能吗

New Features

• In Models utilizing Model Lightmapping can use $bumpmap. Additionally all Model shaders will be able to utilize this feature. Except they have $phong.

重要:The Lightmap does not do bumped-lighting using the bumpmap. Only named-lights/projected textures will be able to do so.

注意: Lightmapped models will not be able to receive $phong. This is not planned at the moment but should be possible for named-lights/projected textures!

• In Models can utilize Lightmap UV's.

警告:The way this is currently implemented requires a custom written tool, two smd's ( one with lightmap uv ) and also has a lot of precision loss for the Lightmap UV's. Additionally this requires a custom compiler!

待完善: Investigate code, supposedly the Studiomdl code is there. Maybe it can be packed via Blendweights or alternatively the precision loss might be decreased.

Features ported/recreated/revived

• $phongdisablehalflambert From + - Also needed for
• $phongexponentfactor From , with LUX also on
• $phongalbedoboost From - Its just BaseTexture * $PhongAlbedoBoost... No leaked code!
• $basemapluminancephongmask From +

注意:LUX allows the use of Rec. 709 HDTV Luminance Weights. float3(0.2126f, 0.7152f, 0.0722f).

Previously SDK_ Shaders would use the NTSC Analog Television standard of float3(0.2990f, 0.5870f, 0.1140f)

• $selfillumtexture Deprecated since - This used to be obsolete

注意: Yes, there is a use for this! $detailblendmode 5 is commonly used for glowing textures. This parameter allows for not wasting your $detail. Additionally no $emissiveblend is required.

参见: PBR Shaders in the community commonly have a $emissiontexture parameter that does EXACTLY what $selfillumtexture does in LUX.

• Water Shader with $flowmap Support - From
• $envmaplightscale From for brushes+ AND models (仅存在于 之中)+

重要:

• On brushes this will use the Lightmap
• On models with $bumpmap, this will use bumped lighting.
• On models without $bumpmap, this will use Vertex Lighting.
• In Models utilizing Model Lightmapping, will use the Lightmap. Regardless of whether or not $bumpmap is used.

Features that are being discarded

• $envmapsphere and related - These features have been removed since and are obsolete.

注意:This is very easy to re-implement. The 7th face of a Cubemap is still being built in and therefore this feature is still operational given that the code has been implemented!

• $bumpmask and related

Features that won't be ported/recreated/revived

• $basealphaenvmapmaskminmaxexp from - This parameter is not yet documented on the VDC, it is also unclear what exactly it does...
• $EnvMapLightScaleMinMax from

Not functional - FOR NOW

• $emissiveblend - Non-Existant. Planned for later.
• $distancealpha - Non-Functional. Planned for later.
• $ssbump - Non-Functional. Planned for later.
• $detailblendmode 10 & 11. - Non-Functional. Planned for later.

Stock Shaders VS LUX

待完善: Move This to their own pages or something like that.

LightMappedGeneric

Stock Shader's

错误:$detailblendmode 2-9 Don't work.

错误:$detailblendmode 6 Doesn't work.

错误:$detailblendmode 1-6, 8 Don't work. 9 Does not work with $bumpmap, $envmap or $selfillum

错误:$bumpmap + $envmapmask Doesn't work, except in 反恐精英：全球攻势

错误:$lightwarptexture + $detail Doesn't work

错误:$basealphaenvmapmask + bumpmap Doesn't work

注意:$selfillummask Missing

注意:$selfillum_envmapmask_alpha Missing

注意:$selfillumfresnel Missing

注意:$blendtintbybasealpha Missing

注意:$detailtexturetransform Missing

注意:$lightwarptexture Missing

注意:$envmapfresnelminmaxexp(仅存在于 + 之中)

注意:$envmaplightscale(仅存在于 + 之中)

Notice: $basealphaenvmapmask requires inverted masks

LUX_LightMappedGeneric

• $detailblendmode 1-9 works.
• $detailblendmode 10-11 planned.
• $bumpmap + $envmapmask works, used to be (仅存在于 . 之中)
• $lightwarptexture + $detail works ( does not work in ).
• $basealphaenvmapmask + $bumpmap works.
• $selfillummask Exists now.
• $blendtintbybasealpha Exists now.
• $selfillum_envmapmask_alpha Exists now.
• $detailtexturetransform Exists now.

Notice: Caveat - Has higher priority than $selfillum/$selfillummask.

Notice: Caveat - $selfillumtexture has higher priority than both.

重要:$basealphaenvmapmask does no longer require a flipped mask.

解决方案: Materials that previously used have to be adjusted. Use $envmapmask or $normalmapalphaenvmapmask instead!

VertexLitGeneric

Stock Shader's

Always

$envmaplightscale(仅存在于 之中).

Without $Bumpmap

错误:$detailblendmode 10-11 Don't work.

错误:$selfillumfresnel missing.

错误:$lightwarptexture missing.

注意:$lightwarptexture fores bumpmapping by binding a default one, unless one is manually specified.

With $Bumpmap

错误:$detailblendmode 5-11 Don't work.

错误:$detailblendmode 5-6 & 8-11 Don't work.

注意:$envmapmask missing. Except .

注意:$selfillummask missing.

证实:Only in ?

注意:$selfillum_envmapmask_alpha missing.

错误:$selfillumfresnel disables $normalmapalphaenvmapmask.

待完善: Also on other branches than ?

With $Phong

错误:$detailblendmode 8-11 Don't work.

错误:$invertphongmask In the shadercode, only flips the mask used for $envmap.

证实:Also on newer branches?

错误:$phongalbedotint cannot be used without $phongexponenttexture.

错误:$phongwarptexture does not work.

错误:$phongalbedoboost(仅存在于 之中) + $detail does not work.

错误:$phongtint disables $phongalbedotint.

错误:$envmap always masked by something.

错误:Only in + $envmap masked by $basetexture luminance when $normalmapalphaenvmapmask and $basemapluminancephongmask is used.

错误:$envmap masked by $basetexture alpha when $normalmapalphaenvmapmask and $basemapalphaphongmask is used.

错误:$basemapalphaphongmask makes $phong ignore the $bumpmap.

错误:$selfillumfresnel + $normalmapalphaenvmapmask will cause the $envmap to be multiplied by 0.0f regardless of whether $invertphongmask is used.

错误:$selfillumfresnel will cause $envmap to be masked using the $basetexture alpha channel

注意:$phongdisablehalflambert only in +

注意:$phongexponentfactor only in

注意:$basemapluminancephongmask only in +

注意:$phongalbedoboost only in +

LUX_VertexLitGeneric

Without $Bumpmap

• $detailblendmode 10-11 planned. If possible.
  
• $selfillumfresnel Exists now.
  
• $lightwarptexture Exists now.
  

待完善: Make a parameter that allows its usage. Right now default behavior is replicated and a default bumpmap is bound.

With $Bumpmap

• $detailblendmode 5-9 work.
  
• $detailblendmode 10-11 planned. If possible.
  
• $envmapmask Exists now.
  
• $selfillummask Exists now.
  
• $selfillum_envmapmask_alpha Exists now.
  
• $selfillumfresnel + $normalmapalphaenvmapmask Works now.
  

With $Phong

• $detailblendmode 8-9 work now.
  
• $detailblendmode 10-11 planned. If possible.
  
• 注意:$invertphongmask Now only flips the mask used for phong. It will no longer touch the envmapmask at all.
• 注意:$phongalbedotint can now be used without $phongexponenttexture.

Notice: Will use entirety of $basetexture, without being masked.

• $phongwarptexture works. ( does not work in ).
  
• $phongalbedoboost Exists now. Used to be (仅存在于 . 之中)
• $phongalbedoboost + $detail Works. Does not work in 反恐精英：全球攻势.
  
• 注意:$phongtint does no longer disable $phongalbedotint. It will do ($baseTexture * Mask) * $PhongTint

Notice: When no $phongexponenttexture is specified, Mask will be 1.0f!

• $envmap Can now be not-masked by using a new parameter ($phongenvmapnomask)
• 重要:By default the original masking for the $envmap will be replicated as to not have disparity.
  

However it can now be overriden using two new parameters. $phongforcebasealphaenvmapmask and $phongforcenormalmapalphaenvmapmask

• $basemapalphaphongmask no longer makes $phong ignore the $bumpmap.

Notice: This will make materials that previously used this intentionally, look different.

• $selfillumfresnel + $normalmapalphaenvmapmask will no longer multiply the $envmap by 0.0f
• $phongdisablehalflambert Exists now. ( Used to be (仅存在于 + 之中)
• $phongexponentfactor Exists now for . ( Used to be (仅存在于 之中)
• $basemapluminancephongmask Exists now. ( Used to be (仅存在于 + 之中)
• $phongalbedoboost Exists now. ( Used to be (仅存在于 + 之中)

待完善: Add LUX_WorldVertexTransition and other LUX_ Shaders to this list of comparison and changes.

注意: Probably better as their own pages to document all parameters.