???Unity Shader??????????????????

D??

?/????

????????????????????????????????Shader??????????????????????????????????????????????????????????????????????????????????????????????

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? ????

????????????????????????UV????�???�????????(0.11,0.51)????(0.12, 0.50)???(0.23,0.15)????(0.22,0.17)???????????????????�???�?????????????????????????????????????????

????????????????????????????????????????????????????????????????????????????(NoiseTexture)??

? ??????

??????????????????????????????????

?????????"??"???????????????????????????????????????????????????

? Ps??????(??????????????)

? ????????????

??????

?????????????????????????

1??????????Repeat??????????????�??�???

2???????????????UV???????????????-1~1???????UV???????????????0.005???????????????????????????????????????

3??????????????????????????????????????R???(??????????(G)????(B)??)???????????????????????????????????????????????

4?????????????????????????????????????45???1????????????5~10???

?????????????????????????????????????�??�?????????????????�??�?�??�??????????????????

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??????????????????????????UV????????????????? * ????????????

? ????????

? U?????????????????

Shader???????????

?????????

1???????????

2????????

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???????????X?Y???2D????Z????????? * ????????????????????????????????UV????????????????

????????

?????

?????????????????????????????????????????????(????????????????????)?

Shader???????????

?????????

1???????????

?????Repeat??????????

2????????

3??????

??????????????????(0,0)?????????

??(0,0)??????

???????

??????? + ?? or ?? + ??

?????????????

?????????

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? ???shader

???????

?????????????????(???????)??????????

??????

???????????????shader??Blend???Blend??????????????????????????????????????????????????????????????(???)?????????�??�??????????(???????)????????????????

?????????

???????????BLEND?ADD??????(??BLEND???????...)????????

BLEND?

???????? = ??????? * ?????Alpha +  ??????? * (1 - ?????Alpha)

ADD?

???????? = ??????? +  ???????

???????????????Shader?Blend????????????

Blend SrcAlpha OneMinusSrcAlpha

? Blend One One

??????????????�???????�???????????????Shader??????????????????????

?????????

1?????????????????????????

2???Alpha????????????????Alpha?????????Alpha????Unity???????Alpha???????????

3?????RGB?????Alpha??????????

4??????????????????????????????

??

?????????? = ???? op ??1 op ??2 op ??3

??x = ????? * ????? * ???????

????? = tex2D(???, uv + ??? + ???)

?????????Shader??????????????????????????????????????????????????????????????????????

???

???�??�?????????????????????????

??????????????????????????????????????

???????????????Motion?????uv??????PS????????????

??????????????????????????????UV?????(0~1)??????????????????

?????Motion?????????????????????????????????Point???????????�UV�???PhotoShop???�??�???�UV�????????

??????????????????�??�?�??�?????????????????????????????????????????????????????

????????

????????????????????Inspector??????????????????????????????????????????????? -- ???

? ????????????

? ???????????

????????????

? ??Editor.cs????Editor?????

? ?????Editor?????

? ?Shader???????????????

? ?Editor?????OnInspectorGUI???

????????????????OnInspectorGUI????????????????????????OnInspectorGUI?????Inspector??????????

? ?????Inspector??

?????????????

???????????????????Properties ? Keywords?

Properties

�Properties - ??�????Shader???Properties???Properties????Inspector????????.mat?????????mat??????Draw??????????shader?

Keywords

�Keywords - ???�???????Shader???????????????

?????????????????Unity Shader Lab??????????????.shader(GPU???shader)?????(????)?

????????Shader?????????????????????????????????�????�???????????shader???????????????

????Keywords??Unity???Keywords?????????multi_compile?shader_feature?????shader??????????Keyword???????????????.shader???????

???shader_feature?multi_compile??????????(????�Making multiple shader program variants�)???????????

OnInspectorGUI????????

??shader??Properties?Keywords
?
????????keyword???keyword??GUI???????
?
???????????
?
???????keyword
?
???????????

? ??shader??Properties?Keywords?

? ????????keyword???keyword??GUI????????

? ?????????????

???????MaterialProperty??????????????Shader??Properties????????

???????keyword ?????????????

?????????API

public Color ColorProperty(MaterialProperty prop, string label);//????

public float FloatProperty(MaterialProperty prop, string label);//?????

public Vector4 VectorProperty(MaterialProperty prop, string label);//????

public Texture TextureProperty(MaterialProperty prop, string label);//????

...

??API?????????MaterialEditor???

?????????????????????????????????????????...

????

? ?????????YouTube??????????????????????????????

https://www.youtube.com/watch?v=OYjMnMZe1Vg

? ???????????????Unity Shader Lab????????????????????????????????????????????

???????????????????????????????????

? ????????????????????TCG?????????????

????


via?????by??????