2009

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2 When the image has completed rendering, click the Keep Image icon to
save the image and compare this rendered image with the previously
rendered images.
In this image, the circular spots that were seen in the previous renderings
have disappeared. You can observe other Global Illumination effects
compared to the original raytrace rendering:
Many of the objects have received some additional color from
neighboring objects in the scene as a result of the Global Illumination,
an effect known as color bleeding. When color bleeding occurs, objects
take on some of the color from neighboring objects as a result of the
reflected and transmitted light.
Now that youve tested and refined the Global Illumination for a small image
you can render a final image for the scene at a larger image size and increase
the rendering quality settings.
To increase the image size and antialiasing
1 In the Render Settings window, select the Common tab and open the
Image Size settings.
2 Set the preset to 640 X 480 to render a larger sized image.
3 In the Render Settings window, select the Quality tab.
4 Open the Anti-Aliasing Quality attributes. Leave the Sampling Mode as
the default (Adaptive Sampling) and set the following:
454 | Chapter 9 Rendering