MAYA制造草地飘动
In this tutorial, I will describe how to create realistic 3d grass using Maya's Paint Effects. Here is the final image that we will create！１.首先,我们需要了解基层实际样子.看到这张照片.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/Atlas_by_ZjeerY.jpg[/img]
上面这张照片包含了许多不同颜色、大小、类型和草地.你几乎从未有一个单一的草你现场因为在现实中,总有其他植物混在基层.还有一些花卉,有的杂草,有的干出草(死),等等.因此,如果你想要草现实,你必须使用数种不同的植物你的形象.另外,你必须更改你的大小和颜色场景.
认真看看这张照片:
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/corpse_by_wasted_photos.jpg[/img]
有多少草等多种植物,在这个小小的空间,还有一些木块也掺入,观察影子在草地！
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/dark.jpg[/img]
你可以看到在高高的草得到大量轻、而底部有暗草、不规则阴影.每莛蒙上阴影在地面和周边秸.由于极少光到达地面.我们需要大量的反差和顶底基层产生真务实的形象.我不是说个人的需要是很强烈的阴影,只是,需要有一个鲜明反差的根.这给人的意识深入基层.看看这一连串的意象:首先,让我们创造一个简单的场景. Create a plane (NURBS or poly都行.在这里用Nurbs)再用雕塑工具给它的变异台阶.这是地形.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/pintar.jpg[/img]
然后选择自己想用的刷笔.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/barra.jpg[/img]
在Visor里选好所用的草！
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/visor.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/visor2.jpg[/img]
现在我们可以开始好玩的地方.你可修饰地形(从油漆效果、壳牌第二油漆效果图标或从菜单选择"修饰").然后,调整画笔大小和你就开始画地形.创造两部份,一是真正的最终规模和另一小;我们将配置和试验使小部分直到我们高兴与你们看,然后分享刷两节大更新.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/grass.jpg[/img]
我们需要创造一个简单材料地面.这个比较简单．可以用贴图也行！
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/render1.jpg[/img]
我要为"山区"你看,所以我需要一个有点随意放置植物晒干,"夏季末"色调.我们会用一些阴暗的精彩滚黄、叶片每一顶草.但在我们的色彩变化,让基层增加密度遍及整个地形.要做到这一点,我们可以打开属性编辑,选择the general grassBermuda.grassbermuda配置、增加密度选择
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/density.jpg[/img]
options for the "grassBermuda" stroke.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/atributedegrass.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/sharingf.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/texturingztribute.jpg[/img]
[size=14px]以下是一些令使用不同值的材质球混浊效果！
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/texturing.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/opacity_texturing1.jpg[/img]
这里用纹理Checker texture (repeat u=3, v=).
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/noopac_checkter_tipe.jpg[/img][/size]
[size=14px][size=14px]你可以看到每个属性的解释.大家跟着调.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creationtubes.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creationsettingsrender.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creation1.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creation2.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creation3.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/creation4.jpg[/img]
最后：
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/rendercreationcomplete.jpg[/img][/size]
[size=14px][size=14px]再设置出自己合适的灯光：
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/iluminationatributte.jpg[/img]
对于这些场合使用阴影
＊.打开"阴影"阴影属性
＊.深入使用地图阴影未光线追查
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/sombras.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/luzsettings.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/oversample.jpg[/img][/size]
[size=14px][size=14px]现在有事要走开.先发英文的顶一下吧！
Here you can see the rendered image with basic light and shadows.
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/rendergoogs.jpg[/img]
Now that our grass is ready, we will share the brushes so that the whole terrain has the same configuration. I work this way to save memory during the configuration process.
Before Share brushes:
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/devueltaaunion.jpg[/img]
After Share brushes:
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/compartiruenunaborcha.jpg[/img]
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/unionhecah.jpg[/img]
Now you can change the camera view and adjust the render settings in the Render Globals panel. I used "intermediate quality" with Maya Software, with the "Oversample" and "Oversample Post Filter" options turned on, along with some basic shadow settings
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/renderfin.jpg[/img]
还需要一点效果,所以调整了一些光和影的色彩！
[img]http://67.15.36.49/team/Tutorials/realistic_grass/images/renderfinal.jpg[/img][/size]
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[[i] 本帖最后由 锐觉 于 2007-10-24 22:19 编辑 [/i]]
呀。。。。
虽然楼主说的好像很详细，但是我看不到图片~也不知道是什么原因，好想学会呀。。5555, 5555, 5555, 5555, 看不到图 没图啊`~;$ ;$页:
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