> For the complete documentation index, see [llms.txt](https://krjaeh0.gitbook.io/j-log/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://krjaeh0.gitbook.io/j-log/gamedev/gameplayprogrammer/shadergraph/shaderlecture2.md).

# ShaderLecture2

{% hint style="warning" %}
Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document.\
You can decompress Drawing data with the command palette: "Decompress current Excalidraw file". For more info check in plugin settings under "Saving".
{% endhint %}

## Excalidraw Data

### Text Elements

툰 셰이더 ^AL0IRxnq

Specular reflection\
Two tone Shading\
Rim Lighting ^KXxkaXen

SDF/셰도우마스크 등 별도 기능을 추가하는 과정에서 문제가 발생할 것이다. ^Mc1C2KoS

기능 구현을 위해 정해야 함(뭘 넣을지) ^uqN2MXtr

명조의 경우 스패큘러를 제외하고 직접 하이라이트를 그림 ^PftDFoe3

그림자 색상을 어떻게 나눌지 ^WadkxsSQ

matcap을 사용해서 광택을 표현하지 메탈릭을 사용하지 않는다. ^j5T2RWsi

MatCap을 카메라 기준으로 넣어서 사용한다. (메인 카메라에 컴포넌트를 추가해서 반사 색을 결정하거나 강도를 수정한다.) ^aUzJ9Eht

멀티플라이는 어둡게만 가능(소수점 아래로 가면 줄어드는 것 밖에 안됨)\
에디티브는 밝게 만드는데 유용 ^8T2a2wLt

다른 연산 방식은 컴퓨터에 부하를 준다. ^kRpsOGmR

overlay가 대표적 (if 문으로 0.5를 기준으로 값을 더하고 뺌) ^W2ROWGTr

필요한 기능

* 셀 쉐이딩
* 하이라이트 (그려넣을지 결정)
* 아웃라인
* 림 라이트
* 포인트라이트/아웃라이너 (적용 여부)
* SDF
* 섀도우 마스크(빼기? 더하기?) / 밝은 맵이면 빼기가 유리 / 어두운 맵이면 더하기가 유리 ^JoMEZCLp

일정 부분 밝게 유지하면 전체 밝기 톤이 밝아지는 효과가 있음 ^XShrG7H0

얼굴에 그림자가 자연스럽게 들어갈 것이다?\
Signature distance field ^HdimhKmR

가상의 z축? ^3pQgu0eD

UVW 에서 W축 ^Wevnq0rR

<https://techartnomad.tistory.com/> ^5gYBqoE5

HLSL 사용하지 않으면 하나의 메테리얼에 하나의 쉐이딩 표현만 가능 ( 쉐이더 그래프의 한계 ) ^MNIvFudK

과거에는 노말맵을 이용해서 세로로 직선을 만들어서 ^FPbWwTCM

닷프로덕트( 내적, 외적의 평균 ) ^cvKAlkfd

파워(제곱) ^E8NstPc3

수학으로 접근하고 필요한 기능을 구현한다 생각하고 원리를 탐구하고 구현(추후에 직접 수정할 수 있게) ^sYbokp0E

***

### Element Links

DP2mMK2x: <https://github.com/unity3d-jp/UnityChanToonShaderVer2\\_Project>

JY3m20WF: <https://techartnomad.tistory.com/>

***

### Drawing

<details>

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```

</details>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://krjaeh0.gitbook.io/j-log/gamedev/gameplayprogrammer/shadergraph/shaderlecture2.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
