maya建模教程:汽車坐椅

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pic 21

Create Top Seat Upholstery

Note : to continue your work and to get more modeling concentration, you could use working by layer or hide your finished model. :)

注意 : 繼續(xù)你的工作前，你可以使用 Layer 來隱藏你已完成的物體 .

From Side view, create a profile curve like in this image (pic 22), and then from top view, create a NURBS circle with 18 sections and adjust the CV's until the circle looks like in this image (pic 23). Remember... the distances between CV curves are important; try to maintain the same distances, 'cause the distance between the CV's affects the smoothness of the final lofted objects . :)

側(cè)視窗 , 創(chuàng)建一條參考曲線如 (pic 22), 然后切換到頂視窗 , 創(chuàng)建一條 NURBS 圓形曲線 (sections 18) 然后調(diào)整它的 CV 點(diǎn)到像 (pic 23) 所示 . 記住 .... 盡量使每個 CV 點(diǎn)之間的距離一樣， 因為這會影響到最后 loft 出來物體的效果 .

Pic 22


pic 23

Then from side view, duplicate this curve many times following the profile curve (pic 24). Adjust every CV's curve, especially the top and bottom curves, it should be turned into lane curve or circle curve (pic 25).

回到側(cè)視窗，復(fù)制一些曲線如 (pic 24) ，并且調(diào)整每條曲線的 CV 點(diǎn)，得到 (pic 25) 的效果為止 .

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pic 25

Now hide profile curves and select all the curves one by one sequentially (from top to bottom or reverse) then surface > loft . You will have this new lofted object (pic 26). Next, from side view create a cutter curve reference (pic 27).

隱藏參考線，再依次選擇這些曲線，并使用 surface > loft 命令 . 得到新物體如 (pic 26). 回到側(cè)視窗中去，創(chuàng)建一條如 (pic 27) 所示的剪切曲線 .

pic 26


pic 27

With cutter curve still selected and still from side view, shift select main object, then Edit NURBS > Project Curve on Surface . You will have this cutter spline area (pic 28); next, select main object Edit NURBS > Trim and select these 2 front objects (pic 29).

在剪切曲線仍然被選擇時，按住 Shift 鍵選擇主物體 , 在側(cè)視窗中使用 Edit NURBS > Project Curve on Surface . 你將在曲面上得到剪切曲線 (pic 28); 選擇你要保留的區(qū)域，并 Edit NURBS > Trim (pic 29).

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pic 29

Hit enter, then you'll have these 2 objects (pic 30). With these new objects still selected, press Ctrl-D (duplicate) and move these new objects to the front (about 1 of z axis)

剪切后得到 (pic 30). 當(dāng)前物體仍然被選擇的時候，按快捷鍵 CTRL+D( 復(fù)制 ) 它并將復(fù)制后的曲面在 z 軸方向上移動約 1 的單位 .(pic 31)

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pic 31

Now select back your trimmed object and go to the menu Edit NURBS > Untrim Surfaces (pic 32), select trim again, and this time, select the main object (pic 33).

選擇后方被你剪切過的曲面，使用 Edit NURBS > Untrim Surfaces 命令，得到 (pic 32), 將得到的曲面再次 trim 它，這次，我們要保留的區(qū)域改變了 (pic 33)

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pic 33