Shader "name" { [Properties] __Subshaders__ [Fallback] [CustomEditor] }
|
名字 |
解释 |
|
name |
Shader文件中name是唯一存在，且不能与其他shader文件重名 |
|
Properties |
属性表 |
Properties：属性表组成 及其 语法：Properties { Property [Property ...] }
|
variable |
Inspect ui name |
data type |
default value |
|
_Color |
"Color" |
Color |
(1,1,1,1) |
|
_TestVector |
"TestVector" |
vector |
(0.1,0.2,0.3) |
|
_MainTex |
"Albedo (RGB)" |
Texture 2D |
"white" {} |
|
_Glossiness |
"Smoothness" |
Range |
0.5 |
|
_TestFloat |
"TestFloat" |
float |
0.5 |
|
_TestInt |
"TestInt" |
int |
2 |
|
_TestCube |
"TestCube" |
CUBE |
""{} |
{
_Color ("Color", Color) = (1,1,1,1)//颜色指示器
_TestVector("TestVector", vector) = (0.1,0.2,0.3)//坐标
_MainTex ("Albedo (RGB)",2D)="white" {}//纹理带tilling xy与offset zw
_Glossiness("Smoothness", Range(0,1)) = 0.5//滑块
_TestFloat("TestFloat",float) = 0.5//单精度值
_TestInt("TestInt", int) = 2//整形
_TestCube("TestCube", CUBE) = ""{}//cube纹理
}
Properties属性映射到Subshaders(Cg/HLSL code)中的变量对应表
|
Property Type |
Subshader Type |
|
Color、Vector |
float4、half4、fixed4 |
|
Range、float |
float、half、fixed |
|
Texture |
sampler2D |
|
CUBE |
samplerCUBE |
|
3DTexture |
sampler3D |
属性前缀(可选属性)
|
Attribute |
Describe |
|
|
|
|
在inspector面板隐藏纹理平铺/偏移。 |
|
|
|
指示纹理属性需要一个法线映射 |
|
|
指示纹理属性需要高动态范围(HDR)纹理 |
|
指示在UI中将浮点数/向量属性指定为sRGB值(就像颜色一样)，可能需要根据使用的颜色空间进行转换。 |
|
|
指示纹理属性用MaterialPropertyBlock每次渲染数据的形式呈现纹理 |
|
|
#pragma multi_compile _OVERLAY_NONE _OVERLAY_ADD _OVERLAY_MULTIPLY |
|
|
[Toggle] |
开关 |
[PowerSlider(3.0)]
|
非线性响应的滑块 |
[Space]…[Space(value)]
|
创建一个垂直空间 |
[Header(…)]
|
加标题文字说明 |
Subshader { [Tags] [CommonState] Passdef [Passdef ...] }
一个Shader可以有一组subshader。每个subshader可以设置标签、一组通道。
以下标签 只在subshader内部被识别，不能在pass内。
渲染队列Rendering Order
|
Name |
Base Order Value |
Describe |
|
Background |
1000 |
最先渲染，会被遮挡 |
|
Geometry |
2000 |
适用用于大多数不透明几何物体 |
|
AlphaTest |
2450 |
是阻止像素被写到屏幕的最后机会 |
|
Transparent |
3000 |
任何alpha混合(例如着色器不写入深度缓冲)都应该到这里(玻璃，粒子效果)。 |
|
Overlay |
4000 |
叠加效果，最后渲染，一般做后处理 |
着色器分类RenderType Tag
|
Name |
Describe |
|
Opaque |
大多数着色器(正常, 自动照明，反射，地形着色器等等) |
|
Transparent |
大多数半透明着色器(透明，粒子，字体，地形添加通过着色器) |
|
TransparentCutout |
masked transparency例如一片有洞的树叶、打碎了的玻璃窗 |
|
Background |
Skybox |
|
Overlay |
UI、Halo、Flare |
|
TreeOpaque |
Terrain engine tree bark |
|
TreeTransparentCutout |
Terrain engine tree leaves |
|
TreeBillboard |
Terrain engine billboarded trees |
|
Grass |
Terrain engine grass |
|
GrassBillboard |
Terrain engine billboarded grass |
备注: 现在有了SpeedTree第三方插件，可以很好的替换上Terrain engine关于树花草等
Pass { [Name and Tags] [RenderSetup] }
Name “PassName” 与 UsePass “shaderName/passName“
光照标签:Tags { "TagName1" = "Value1" "TagName2" = "Value2" }光照标签只能在Pass内识别
|
Lighting Mode |
Descripe |
|
Always |
总是开启渲染，没有光照计算 |
|
ForwardBase |
Used in Forward rendering. ambient, main directional light, vertex/SH lights and lightmaps are applied |
|
ForwardAdd |
Used in Forward rendering，additive per-pixel lights are applied, one pass per light. |
|
Deferred |
Used in Deferred Shading, renders g-buffer |
|
ShadowCaster |
Renders object depth into the shadowmap or a depth texture |
|
MotionVectors |
Used to calculate per-object motion vectors |
|
PrepassBase |
Used in legacy Deferred Lighting,渲染法线和高光 |
|
PrepassFinal |
Used in legacy Deferred Lighting,通过合并纹理、灯光、散射光渲染最终颜色 |
|
Vertex |
Used in legacy Vertex Lit rendering when object is not lightmapped |
|
VertexLMRGBM |
Used in legacy Vertex Lit rendering when object is lightmapped; |
|
VertexLM |
Used in legacy Vertex Lit rendering when object is lightmapped |
PassFlags
OnlyDirectional指示该Pass只接受main directional light and ambient/lightprobe data。
RequireOptions
SoftVegetation指示该Pass只应用于软植被
Render state set-up //渲染状态
keyword变种知识补充
原文：https://www.cnblogs.com/baolong-chen/p/11627617.html