maya渲染设置2(Maya render settings 2)

maya渲染设置2（Maya render settings 2）

节1.07九、渲染选项

插件格式

国际货币基金组织（如果使用一个的插件渲染成玛雅不支持的图片格式），在插件格式区键入插件名。

预渲染MEL，后渲染梅尔

在渲染每一帧之前（预渲染（MEL）或之后后呈现命令或脚本执行一条梅尔梅尔）。

注意在这里输入脚本名称时不能带。梅尔的扩展名。否则系统会提示错误。

环境雾环境雾

建立一个环境雾结点。环境雾（一种体积材质）用于模拟空气中精细的微粒引起的现象（如雾、烟和灰尘）。这些微料影响大气及处于大气之中的物体的外观。详见软件手册渲染分册材质部分的环境雾一节。

在岗位上应用雾

将雾的渲染作为一个后续过程当本参数处于选中状态时，你可以设置后雾模糊。

阴影服从灯光由有链接的灯光投射阴影。

开关选项。处于选中状态时，只有与一个表面建立了链接关系的投射

阴影灯光才给该表面投射阴影。如果处于关闭状态，所有的阴影投射灯光都对所有表面物体投射阴影，即使表面与灯光之间没有建立链接关系默认状态为上。

使深度图

开关选项。处于选中状态时，玛雅给所有打开深度阴影映射的灯光建立深度阴影映射。如果处于关闭状态，玛雅不渲染深度映射阴影参数的默认状态为选中状态使深度图。

默认灯光

点击检查框关闭默认灯光。详细内容参考软件手册有关内容。

忽略了电影的大门

开关选项。处于选中状态时，玛雅只渲染分辨率门中能见的部分。如果关闭，玛雅只渲染胶片指示器（拍门）中可见的部分，此框以外的部分渲染成黑色。如何在交互方式中查看胶片指示器中所见范围。参考软件手册中”摄像机的设置（相机设置）”和”胶片指示器（电影门两部分默认状态为选中状态）”。

剪辑最后的阴影颜色

开关选项。处于选中状态时，渲染完成后的图片中所有的颜色值保持在0到1之间。这可以保证整个图片中没有曝光过度的部分。如果关闭，渲染出的图片中颜色值可能会大于默认状态为处于选中状态1。

伽玛校正，伽玛校正

在渲染完成后会对渲染图片进行颜色校正，颜色校正按下面的公式计

算其默认值为1。

复合合成

开关选项。处于选中状态时，玛雅在渲染物体时不针对背景作反走样处理。例如，一个处于物体边缘的像素不会与背景的颜色进行混合（在TIFF格式中，玛雅生成不相关的α通道）。如果关闭此选项，玛雅针对背景进行反走样处理。非选中状态为默认值。

复合阈值

当复合处于选中状态时，此参数用于控制边缘反走样的程度。如果你的图片将用于游戏，同时你使用的是8位或16位颜色，设置复合阈值值为1就可获得光滑、无锯齿的物体边缘默认设置为0。

节1.08十、内存和性能选项

内存和性能选项部分的参数帮助你优化渲染过程加快渲染速度。

镶嵌

帮助管理玛雅如何处理表面的镶嵌信息。

使用文件缓存

将几何体的信息保存在一个缓存文件中，这样可以减少保存几何体信息所占用的内存量。

优化实例

开关选项。处于选中状态时，如果场景中包含几个同样的表面（例如

关联复制表面或独立创建的相同表面），玛雅只对其中的一个进行镶嵌处理，以节省时间和磁盘空间。默认状态为选中状态。

利用镶嵌

开关选项。处于选中状态时，玛雅每一帧都将镶嵌的信息临时保存在硬盘上。这对于包含深度映射阴影的场景非常有用。例如，在渲染的过程中玛雅在生成一盏灯的深度映射时对这些表面进行镶嵌处理（并保存在硬盘上），

This information can be used again when rendering the depth map of another light in the rendering of this frame. (when the next frame is rendered, Maya will delete the information and recalculate it.). The default state is selected.

Use Displacement Bounding Box

When using deformable mappings, rendering will take a lot of time because Maya is going to insert all the deformed mapped surfaces and calculate their bounds before rendering. When you open the Use Diaplacement Bounding Box option, Maya calculates the limit frame ratio for all the mapped surfaces. This will speed up rendering. Close this option, and Maya pre - insert the surface of all texturing maps before rendering.

Section 1.09 Raytracing

Helps control light and shadow tracking. For shadow tracking, see Raytracing Quality.

Raytracing is a rendering type that calculates the path of a

single light from the destination point (camera) to the start point (Guang Yuan). Light tracking takes a lot of time.

Raytraced shadow is the shadow produced during the tracking of light and shadow. In most cases, the Raytraced shadow can produce very good results, but to get the Raytraced shadow, the entire scene must be tracked by light and shadow, which usually takes a lot of time.

Raytraced shadows are used only to create very few shadows that cannot be generated with depth maps (such as color transparent surfaces, projected shadows).

Avoid blurring shadows with Raytraced shadows. It can take a lot of time to produce high quality fuzzy boundary shadows by means of light shadow tracking. (by using the depth mapping projection method, a good blur boundary shadow can be obtained).

Recursion Depth

The number of iterations of shadow tracking in rendering. For complex scenes, this can take 2 to 3. For simple scenes, this value is 1. The default value is 2.

Leaf Primitives

Determine the maximum number of triangles in each of the three "pixel points" before entering the next iteration. The default value is 200.

Subdivision Power

The growth index of the triangle in a three-dimensional pixel point is calculated to calculate how many "3D" pixels are needed to achieve the required number of iterations". The default value is 0.2500, which applies to most scenes. This can be slightly improved for very complex parts of an extremely complex scene or scene.

Section 1.10 Multi-Processing

In the rendering window, you can use multithreading to render interactively. It provides the same execution process as batch rendering. The number of CPU for interactive rendering and IPR rendering can be set by the user. Maya saves the parameters you set with the scene.

Use all available CPUs

The default state, all CPU is available. If this option is turned off, the slider for the following option is available.

Number, of, CPUs, to, use

The slider for this parameter can be dragged from 1 to 8, but if necessary, this value can be reached by keyboard input to 256. Enter 0 or turn on the select switch, and all CPU can be used for interactive rendering.

Section 1.11

Section 1.12, eleven, IPR, Options

Control what elements are included in IPR rendering.

Render, Shading, Lighting, and, Glow

IPR rendering includes shadows, lighting, and glow.

Render Shadow Maps

IPR contains depth mapped shadows.

Render 2D Motion Blur

IPR contains 2D motion blur.

Section 1.13, twelve, Render, Layer/Pass, Control

Enable Render Layers

Tell the renderer to render only the layer that the renderable parameter opens. In interactive mode, open the renderable all the parameters of the layer are rendered into a separate file. In batch rendering mode, each layer is rendered to a file, the file name: camera _ file name _ layer name _ channel name.Ext.

Enable Render Layer Passes

Switching options, when opened, allow each layer rendering to be an independent process.

Enable Global Passes

This option is available when Enable Render Layer Passes is closed. The rendering of the entire scene is a process.

Output to Subdirectories

Put the render files for each layer and / or channel in your own directory. File name:...

/layerName/passName/camera_filename_layername_passname.ext

Render Pass management spreadsheet

Depending on the rendering layer and process settings, this table can be used to control all the current render options. See Creating, and, displaying, Render, Layers. This is a way to control all rendering layers and processes.

You can select the rendering process for each layer (layer process), or all the objects in the scene select a particular path.

Check the Enable, Render, Layer, Passes, or Enable Global Passes two options to display channel forms, Beauty, Color, Shadow, and other layers.

When the Enable Global Passes is checked and all layers are available, see below:

Beauty

All components are rendered, which is the default option.

Color

There's only color in the picture, no shadows.

Shadow

Generate only shadow portions of the picture without color information.

In synthesis, the Color and Shadow components are similar to those of Beauty. The convenience is that you can modify the shading independently in the composite / drawing package.

Diffuse

Render only Diffuse components. The Diffuse component contains diffuse and environmental information, which is determined by color, transparency, and Diffuse Coeff (diffuse reflectance).

Specular

Only specular specular highlights. The calculation of specular highlights depends on the material of the object. The specular highlights of Phong, PhongE, Blinn, and Anisotropic are different. For example, Phong material specular high light calculation using cosine index and specular specular color.

Note: alpha does not include Specular Pass (channel mask).

Creating and displaying rendering layers

The render layer lists all the objects that can be rendered so that you can quickly work and separate different rendering channels (which are useful for later compositing). Once the rendering layer is created, you can set the rendering layer in the Render Layer/Pass Control section.

Details about managing the render layer using Layer, Manager, and Relationship Editor are described in detail in the Using Maya:Essentials fascicle.

To set up multiple layers in Render Layer/Pass Control, use the Render Pass management spreadsheet.

Creating a rendering layer in Layer Manager:

Layer Manager is located below Channel Box:

1, 1, and from the drop-down menu, select Render.

2, 2, select Layers > Create Layer.

Sets whether the render layer is Renderable:

1, 1, select a render layer from Layer Manager, and then select Layers > Edit Selected Layer (s). The Edit Layer window displays the selected layer;

2, 2, in this window, you can rename the layer (in the Name box), click the check box to confirm whether the layer is Renderable,

and then save the settings. A check mark indicates that the layer will be rendered.

If Renderbal is ticked off

Objects that are not rendered in the render layer are not rendered in the same file. Each layer is considered the content of another scene. To see what is contained in each render layer, use Relationship Editor (Window > Relationship, > Render, Layers, Editors). The contents of the Relationship Editor are detailed in the Using Maya:Essentials fascicle.

When performing IPRipiIPR test rendering, all objects labeled as Renderable are rendered in Render View.

In batch rendering mode, each layer is rendered as a separate file for offline synthesis.

Determines which channels in the rendering layer are rendered

1, 1, select a layer in Layer Manager, and select Layers > Layer Attributes. In Attribute Editor, select render layer display.

2, in Render Pass Options, select the content to be rendered. The contents displayed in the Render View are marked in the window.

3, if necessary, switching options can change the content to be rendered.

Thirteen, Paint, Effects, Rendering, Options

Section 1.14 on the rendering options for Paint Effects

Instructions on the use of Paint Tool and parameter selection are described in detail in Using Mayaainting. The following is only a description of the Paint Tool rendering options.

Enable Stroke Rendering

Switch options, when selected, render the Paint Effect strokes in the scene. In the render, there is no stroke in the rendered scene. The default state for this option is selected.

Only Render Strokes only renders strokes

Switch options, when selected, render only the strokes in the scene. You might want to separate your strokes from the scene, render them, and then combine them with the scene. The contents of the stroke and scene composition are described in detail in the Using Mayaainting section.

Note: when you render only the stroke, you must specify a.Iff file in the Read This Depth File (depth) region. This file may be empty. It does not have to have depth.

Read This Depth File

To render the rendered scene together with the Paint Effects stroke, specify a depth file and path for the scene to use. Do you want to use absolute path names (for example:

/h/pearce/rainyday.iff or c:\pearce\rainyday.iff) on this

file?.

If you want to render an animation, and has a cartoon character in the input file, placed # serial number location input source file name. For example, files foo1.iff, foo2.iff, and so on, should enter foo.#.iff. For files foo1, foo2, and so on, you should enter foo.#. When rendering # characters will be the current frame number instead of.

The contents of the stroke and scene composition are described in detail in the Using Mayaainting section.

Note: it is best to provide a depth file and let the Maya Paint Effects do the compositing instead of treating the Paint Effect as a subsequent process, using late compositing software for compositing. Maya Paint Effects uses layering, depth, and RGB caching to perform synthesis, which is superior to the effect achieved with later synthesis. If the depth file (a.Iff file containing depth information) is not provided, the Paint Effects strokes behind the object will also be rendered. If you provide an existing picture as the depth of file, Maya will not overwrite the file, the output will be the upper Render Globals window displays the name name.