置換圖和法線圖

[Pro]

我想知道置換圖和法線圖有什麼不同,它們的用法.

[sobig]

what is the english of 置換圖和法線圖?

[stantang]

I think 法線圖 is wireframe view, no idea what 置換圖 is...

[sobig]

I think 法線圖 is wireframe view, no idea what 置換圖 is...

then, 置換圖 is shading mode? haha

[qoola]

應該系講緊 displacement map and normal map

[h2o]

置換圖 = displacement map

由以下所見, displacement map 可以只用黑白圖來做, 也是 2D 的計算.


法線圖 = normal map
normal map 的圖是這樣子的, 包含了 3D 的資料, 所以計算出來的模型比較豐富.



詳細的計算方法, 理論希望有其他會員代答吧, 最近忙於工作, 要潛水一段時間

[stantang]

Thanks qoola and h2o for the translation.

Don't know if I answer your question in English would help or not. Anyway, the biggest different between normal and displacement map is: for displacement map, you need to have the enough vertex on the surface in order for the displacement map to displace (in other term, move). Meaning you can't displace the surface if there isn't enough detail to begin with. It uses a simple BW map (height map) to displace the vertex along its local surface normal. For normal map, it actually has the normal information which can replace the original normal of an object. It doesn't need to need to have detail vertex on the surface. You can see it as a advanced version of bump map.

There are more theories behind, but I guess you need to know the basics first.

[Pro]

Yes,I want to know about displacement map and normal map,and I want to know how to use them in 3Ds-Max.That's best to have Tutors for them