Parallax mapping

머 복잡하게 fragment에 추가하는지 싶지만,

나오니까 알아봐야한다

https://learnopengl.com/Advanced-Lighting/Parallax-Mapping

http://sunandblackcat.com/tipFullView.php?topicid=28

http://casual-effects.com/research/McGuire2005Parallax/index.html

간단한 한글판은

http://laitdei.tistory.com/entry/parallax-occlusion-mapping

comment에 아래와 같이 나와있는데,

If you want exact rendering result, you can also take a look at 
"Maximum Mipmaps for Fast, Accurate, and Scalable Dynamic Height
Field Rendering"

알고리즘 수도 코드 제공하니까 한번 구경은 하면 따른데 쓸수 있으려나?

사람 생각하는거 다 똑같네

https://www.gamedevs.org/uploads/quadtree-displacement-mapping-with-height-blending.pdf

검색해서 나온 소스:

https://github.com/cgart/i3d08.research

보통 이쪽에는,

"Quadtree Displacement Mapping with Height Blending" 이 걸로 언급 되는 듯

https://www.gamedevs.org/uploads/quadtree-displacement-mapping-with-height-blending.pdf

https://github.com/QianMo/GPU-Pro-Books-Source-Code/tree/master/GPU-Pro-1/03_Rendering%20Techniques/01_QuadtreeDisplacementMapping/QDMHB

https://www.gamedevs.org/uploads/quadtree-displacement-mapping-with-height-blending.pdf