Page 669 - Kitab3DsMax

Chapter 23: Rendering a Scene and Enabling Quicksilver

Anti-alias filters
Another way to speed up rendering is to disable the Anti-aliasing and Filter Maps features. Anti-aliasing
smoothes jagged edges that appear where colors change. The Filter Maps option allows you to disable the
computationally expensive process of filtering material maps. The Filter drop-down list lets you select image
filters that are applied at the pixel level during rendering. Below the drop-down list is a description of the cur-
rent filter. The Filter Size value applies only to the Soften filter. Available filters include the following:
l Area: Does an anti-aliasing sweep using the designated area specified by the Filter Size value.
l Blackman: Sharpens the image within a 25-pixel area; provides no edge enhancement.
l Blend: Somewhere between a sharp and a coarse Soften filter; includes Filter Size and Blend values.
l Catmull-Rom: Sharpens with a 25-pixel filter and includes edge enhancement.
l Cook Variable: Can produce sharp results for small Filter Size values and blurred images for
larger values.
l Cubic: Based on cubic-spline curves; produces a blurring effect.
l Mitchell-Netravali: Includes Blur and Ringing parameters.
l Plate Match/MAX R2: Matches mapped objects against background plates as used in Max R2.
l Quadratic: Based on a quadratic spline; produces blurring within a 9-pixel area.
l Sharp Quadratic: Produces sharp effects from a 9-pixel area.
l Soften: Causes mild blurring and includes a Filter Size value.
l Video: Blurs the image using a 25-pixel filter optimized for NTSC and PAL video.
SuperSampling
Global SuperSampling is an additional anti-aliasing process that you can apply to materials. This process
can improve image quality, but it can take a long time to render; you can disable it using the Disable all
Samplers option. SuperSampling can be enabled in the Material Editor for specific materials, but the
SuperSampling rollout in the Material Editor also includes an option to Use Global Settings. The Global
Settings are defined in the Default Scanline Renderer rollout.
Max includes anti-aliasing filters as part of the rendering process. You have several SuperSampling methods
from which to choose.

SuperSampling is disabled if the Antialiasing option is disabled. Global SuperSampling can be enabled
using the Enable Global SuperSampler option.
In a SuperSampling pass, the colors at different points around the center of a pixel are sampled. These sam-
ples are then used to compute the final color of each pixel. Max has four available SuperSampling methods:
Max 2.5 Star, Hammersley, Adaptive Halton, and Adaptive Uniform.
Cross-Ref
You can find more information on each of these sampling methods in Chapter 16, “Creating and Applying
Standard Materials.” n

Motion Blur
The Default Scanline Renderer rollout also offers two different types of motion blur: Object Motion Blur
and Image Motion Blur. You can enable either of these using the Apply options.

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