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This Web site is dedicated to the thousands of "users" of my programs, those who have helped test my programs over the last 22 or so years, and especially those who shared their experiences with me.

You must read this notice: This is a licensed Web site (HTML document and associated files). You must read and agree to be legally bound in contract by the Terms of Use and conditions given in the End User License Agreement ("EULA"), Legal Notices, Instructions, Warnings, Disclaimers, and all other text in "SECTION: 0" of "This Web Site" (HTML document and associated files) before reading or using any of the information, software programs, and or files, contained in, linked to, and or associated with, "This Web Site" (HTML document and associated files). Any use or "Beta Testing" of "This Web Site" constitutes your acknowledgment of your full agreement with the current End User License Agreement ("EULA") and your decision to have this current license supersede all prior and contemporaneous agreements and understandings. Information and files in "This Web Site" (HTML document and associated files) have been placed here so that long time users of "The Author's" programs DANCAD3D.COM (tm) , DANCAM.EXE (tm) , or DANPLOT.EXE (tm) could help proofread the text of the documentation files or screens displayed, and also help test data files, example files, and or any software programs that might be made available from time to time, to aid "The Author" in finding mistakes, bugs, and other errors, omissions, defects, mistakes, and faults. Everything in "This Web Site" (HTML document and associated files) is "Beta Test", "Beta Code", Experimental, Preliminary, requires proofreading, or is being evaluated for possible revision, and is NOT warranted to be free of defect. To help "The Author" report any bugs, foul-ups, defects, or mistakes that you find, see "SECTION: 8" for instructions. "This Web Site" (HTML document and associated files) and all other files and programs by Daniel H. Hudgins are made available "AS IS" without warranty of any kind express, expressed, or implied. All offers and specifications are subject to change or discontinuation without notice of any kind. Please read "SECTION: 8" of "This Web Site" (HTML document and associated files) before trying to contact "The Author."

SECTION: 4.20 is for some information and illustrations relating to example images of the various Display Modes that affect the way drawing elements are displayed.

The Perspective Display Modes relate to the way the lines and edges of the triangle elements are colored in and outlined. The Perspective Display Modes also control how line elements, triangle elements, or mixed elements will be processed for display.

See Section: 3.1.25.0 for a detailed discussion of issues relating to Perspective Display Modes, Printing Display Modes, and other issues related to this Section.

The Stereoscopic Display Modes relate to the way the right and left eye views will be formatted for display. Different stereoscopic viewing methods require different formatting of the two images, these formatting options are controlled through a code number. Various other values are associated with each formatting code number so as to optimize the display for each Stereoscopic Display Mode, and its relation to the particular elements being displayed. The Perspective Display Mode selected affects the appearance of the images used for the Stereoscopic Display Formatting, i.e. you can use all of the Perspective Display Modes with any of the Stereoscopic Display Modes giving a large variety of combinations, only some of which would be of interest generally.

See Section: 3.3.7.8 for a detailed discussion of issues relating to Stereoscopic Viewing Methods, Anaglyph glasses, and other issues related to this Section.

The modes available and the images they produce may be altered in other program revisions, so the images generated by the program version you have may not match the illustrations shown here. Variations in the code used in different program, revisions and versions can affect the results, so you should not expect the same results from different versions and revisions of the programs. The Author reserves the right to make any kind of changes at any time without notice.

Some Browsers may not display the larger size illustrations properly, so you may only be able to view the smaller sizes of each illustration. You should turn off the shrink-to-fit feature in your browser, if it has one, since that can distort or degrade the illustrations or make thin lines disappear.

Background Image Generation Modes are those that are used with the CRT BACKGROUND command, see Section: 3.4.52.C for information and example macro code.

The background images generated can be used with the Perspective Display Modes and the Stereoscopic Display Modes in the Main Menu Preview command and the macro DISPLAY command to put a background image behind the rendered elements.

The various Background Image Generation Modes can use two colors in various ways to get different effects. You can also set the two color values to the same color with some of the modes to get additional effects.

You could also save the background image as a BMP file and process the generated background image in other image editing programs to get additional effects.

The modes available and the images they produce may be altered in other program revisions, so the images generated by the program version you have may not match the illustrations shown here.

Background images that split the screen left and right should not be used as background images for Stereoscopic image formats unless the rendered objects are arranged to be offset in front of the screen plane. When generating backgrounds for Stereoscopic image formats it may be better to generate two background images, i.e. one for the right view and another for the left view, rather than using the same background for both images since speckle and grain may require that all rendered elements be positioned in front of the screen plane. More information about using backgrounds with Stereoscopic image formats is in Section: 3.4.52.S and Section: 3.3.7.8 so be sure to read that as well.

Background Image Generation Mode 0 is for producing a single color of adjustable brightness, or two colors mixed of adjustable brightness over the whole image. By varying the oversampling or undersampling used in the VESA SVGA and BMP video modes it is possible to blend the two colors to varying degrees. In other video modes the two colors will be speckled.

Background Image Generation Mode 21 is for producing a background image that is shaded light at the center and dark at the top and bottom. The two colors are mixed as in Background Image Generation Mode 0. Both colors used can be the same if you do not want mixed colors.

This background was also made with Background Image Generation Mode 21 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 22 is for producing a background image that is shaded light at the center and dark on the left and right. The two colors are mixed as in Background Image Generation Mode 0. Both colors used can be the same if you do not want mixed colors.

This background was also made with Background Image Generation Mode 22 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 31 is for producing a background image that is shaded dark at the center and light at the top and bottom. The two colors are mixed as in Background Image Generation Mode 0. Both colors used can be the same if you do not want mixed colors.

This background was also made with Background Image Generation Mode 31 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 32 is for producing a background image that is shaded dark at the center and light on the left and right. The two colors are mixed as in Background Image Generation Mode 0. Both colors used can be the same if you do not want mixed colors.

This background was also made with Background Image Generation Mode 32 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 41 is for producing a background image that is shaded light at the center and dark at the top and bottom. The two colors are separate color one is on the top and color two is on the bottom.

This background was also made with Background Image Generation Mode 41 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 42 is for producing a background image that is shaded light at the center and dark on the left and right. The two colors are separate color one is on the left and color two is on the right.

This background was also made with Background Image Generation Mode 42 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 51 is for producing a background image that is shaded dark at the center and light at the top and bottom. The two colors are separate color one is on the top and color two is on the bottom.

This background was also made with Background Image Generation Mode 51 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 52 is for producing a background image that is shaded dark at the center and light on the left and right. The two colors are separate color one is on the left and color two is on the right.

This background was also made with Background Image Generation Mode 52 using the same colors as the image above, but the brightness was increased from 0.5 to 1.0. By changing the colors and brightness different effects can be obtained.

Background Image Generation Mode 61 is for producing a background image that is blended color one at the center and color two at the top and bottom. The two colors are mixed in the transition zone and pure at the center and edges. Two different colors must be used, or no color variation will be expressed.

Background Image Generation Mode 62 is for producing a background image that is blended color one at the center and color two at the left and right. The two colors are mixed in the transition zone and pure at the center and edges. Two different colors must be used, or no color variation will be expressed.

Background Image Generation Modes can be coded into Macro Files to automatically generate background images.

Some code to make images like the ones in this section are shown in Section: 4.20.91.5 (click here to see the macro code). Additional information is found in Appendix: B in the description of the CRT BACKGROUND command in Section: 3.4.52.C.