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| Introduction to 3D |
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3D Tips and Tricks
Object placement Tips. A. Objects that are too close to the camera may distort with the camera motion. Try a higher focal length lens and move the camera farther from the aim point. Make the adjustment on the left and right key frames. B. Objects that move too much will appear to hop and diminish the 3D effect. Try one of the following techniques to adjust. 1. Force perspective by moving the object closer but making it smaller. 2. Compress space using a higher focal length lens. The camera will need to move also. 3. Render a background image by removing the other objects from the scene and render only the center frame as a separate image file. Include an alpha channel in your image sequence so we can composite the background with your image sequence. 4. Motion blur and/or depth of field effects can be used to enhance background depth ques. Perspective Tips. A. Use converging lines on ground and sky plane to enhance depth cues. B. Use elements that extend from background, through the aim point and into the foreground. C. Spacial relationships between elements on different planes. Trick One - Foreground/Background compositing You may find it difficult to get the lighting on foreground, aim point and background objects to work the way you want in a single scene. Render the different object planes separately with the same camera motion but different lighting. Be sure to include alpha channels in your rendered files. This is particularly useful when rendering scenes with text or logos that are in the foreground and a product or design element is on the aim point. Trick Two - Look-around effect Objects with transparency and/or in close proximity add to the perception of depth in the final image. Positioning objects so that as the camera moves objects behind are revealed or obscured provide for an effect known as look-around. Trick Three - Time saver The interlacing process can cause a slight amount of subtle image detail loss. Also the lenticular lens pitch (i.e. width of a lens) has a tendency to pixelate and create artifacts on image edges, especially with small type, curved edges, fine detail and/or thin lines. Use lower anti-aliasing settings to speed up rendering times. Sometimes reducing the anti-aliasing and increasing the resolution is faster and just as effective as a high anti-aliasing setting. Trick Four - Multi-size perspective sequences When you know you need the same 3D scene or object for multiple size projects it is possible to create one perspective sequence for multiple target sizes. Simply double or triple the number of frames rendered for the camera movement. Use every second or third frame for smaller images and the center frames for larger images. This is important when making images for use as stock backgrounds and foregrounds. Trick Five - Multi-aim point perspective sequences The render width can be increased, while maintaining the height, allowing the aim point off-center adjustment to be increased. This is particularly useful when a scene is meant as a 3D background and all of the objects are suppose to be behind the aim point. Another use is flexibility when compositing aim point and foreground objects with different backgrounds and each other. Copyright (C) 1999-2010 Digillax Systems. All rights reserved. | ||
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Last update Friday, November 26, 2010 05:20:35 AM