CG卡通逼真的人物模型制作

我最初意大利的BigRock培訓(xùn)中心（http://www.bigrock.it）創(chuàng)建了查理教授計(jì)算機(jī)圖形在學(xué)碩士期間， 我真的很喜歡這個(gè)設(shè)計(jì)，那么在這個(gè)培訓(xùn)之后，我決定通過添加更多的細(xì)節(jié)，給他一個(gè)適合自己的個(gè)性的環(huán)境，把他開發(fā)成個(gè)人作品。

I initially created Charlie to teach character modeling during a master degree of computer graphics at the BigRock training center (http://www.bigrock.it) here in italy. Since I really liked the design, after the course I decided to develop him into a personal piece by adding more details and giving him a context that fits his personality.

Concept and References

The original concept was created by Corrado Colleoni  (Fig.01).
原來的概念是由Corrado Colleoni創(chuàng)建的（圖01）。

I took his idea as a starting point and I tweaked the character's volumes a little to make them work better in 3D Finally, I created his equipment, helmet, weapons and the helicopter from scratch.
我把他的想法作為一個(gè)起點(diǎn)，我調(diào)整了角色的體積讓他們更好地工作在3 d，最后,我創(chuàng)建了他的設(shè)備,從頭開始頭盔,武器和直升機(jī)。
Looking for references was the longest part of the project. I wanted a cartoony but realistic character, so I spent several nights after work creating a big inspirational library (Fig.02). Since I had already completed the early version of Charlie for the course, I decided to create the rest of the props around him. Thanks to ZBrush I was able to figure out what was working for him directly in 3D, with a few little study sketches on paper.

尋找參考文獻(xiàn)是項(xiàng)目中最長的部分。我想要一個(gè)卡通但真實(shí)的角色，所以我花了幾個(gè)晚上的工作創(chuàng)建一個(gè)大的靈感庫（圖2）因?yàn)槲乙呀?jīng)完成了早期版本的查利的課程，我決定創(chuàng)建其余的道具在他身邊。由于ZBrush我能夠?yàn)樗�找出工作直接�? d，并在紙上幾個(gè)小學(xué)習(xí)草圖。

Modeling

Charlie was modeled twice. As mentioned before, the first model was created for my character modeling class and was fairly simple. The second was much more detailed and had a number of props. I'm going to talk about the creation process behind each model.
For the first version I started from a cube. From the beginning I modeled the head and the body separately; this way I could add more details to the face without worrying about how to make the loops flow on the torso. Then I created a very simple mesh for the body, which I used later to extract the vest and the shirt. In this early step I took great advantage of the GoZ plugin for ZBrush: it eliminates the time-consuming process of exporting and importing meshes from various software packages. By using it I was able to jump back and forth between the software, using ZBrush to tweak the volumes and relax the vertices, and Maya to add details and redirect the loops when needed (Fig.03).

查利被模仿了兩次。如前所述，第一個(gè)模型是為我的角色建模類創(chuàng)建的，而且相當(dāng)簡單。第二個(gè)是更詳細(xì)的，有很多道具。 我將談?wù)劽總�(gè)模型背后的創(chuàng)作過程。對于第一個(gè)版本，我從一個(gè)立方體開始。從一開始我分別模擬了頭部和身體;這樣，我可以添加更多的細(xì)節(jié)到臉上，而不用擔(dān)心如何使循環(huán)在軀干上流動(dòng)。 然后我為身體創(chuàng)建了一個(gè)非常簡單的網(wǎng)格，我以后用它來提取背心和襯衫。 在這個(gè)早期的步驟中，我很好地利用了ZBrush的GoZ插件：它消除了從各種軟件包導(dǎo)出和導(dǎo)入網(wǎng)格物體的耗時(shí)過程。 通過使用它，我能夠在軟件之間來回跳轉(zhuǎn)，使用ZBrush來調(diào)整卷并放寬頂點(diǎn)，而Maya可以在需要時(shí)添加細(xì)節(jié)并重定向循環(huán)（圖03）。
To make the bullet belt I firstly created a NURBS circle around his body, then modeled the belt straight without any deformations, and finally created a joint for every bullet. After creating a bind skin I used the IK Spline Handle tool function (with Autocreate Curve unchecked) to link the belt to the circle: this way I could dynamically modify the position and scale of the bullets directly on Charlie's body (Fig.04).

為了制作子彈帶，我首先在他身上創(chuàng)建了一個(gè)NURBS圓，然后在沒有任何變形的情況下對皮帶進(jìn)行建模，最后為每個(gè)子彈創(chuàng)建了一個(gè)關(guān)節(jié)。 創(chuàng)建綁定皮膚后，我使用了IK樣條手柄工具功能（未勾選Autocreate Curve）將皮帶連接到圓圈：這樣我可以直接在Charlie身上修改子彈的位置和比例（圖04）。
For the second version of Charlie I sculpted and refined the meshes I had already created (Fig.05). I also added new details and increased the topology where needed to support the sculpting. I tried to lower rendering time using only Normal maps, instead of a Normal and Displacement combination (Fig.06).

對于查理的第二版，我雕刻并精制了我已經(jīng)創(chuàng)建的網(wǎng)格（圖05）。 我還添加了新的細(xì)節(jié)，并增加了需要支持雕刻的拓?fù)洹?我試圖僅使用法線貼圖來降低渲染時(shí)間，而不是正常和位移組合（圖06）。

感謝大家閱讀。