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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.

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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.

Series 70 Perspective Display Modes includes modes within the range 70 through 79, although not all of the mode numbers in this range are in use as of the initial release of v3.7L. The different Perspective Display Mode code numbers control how triangle elements are displayed. Line elements are normally displayed using Perspective Display Mode code number 1 when all elements to be displayed are just line elements, and Perspective Display Mode code number 10 when mixed triangle and line elements need to be displayed at the same time. The Mutate command can be used to convert line elements into triangle elements so that some of the other Perspective Display Modes can be used to display the mutated line elements along with triangle elements.

The difference between Perspective Display Mode Series 60 and 70 and Perspective Display Mode Series 40 and 50 is that an additional movable light source is present in Perspective Display Mode Series 60 and 70 to create modeling and reflections on the surface of the triangle elements. Perspective Display Mode Series 70 is different from Perspective Display Mode Series 60 in that it allows for the adjustment of the frontal fill light far and near points, where as Perspective Display Mode Series 60 assigns those values automatically by measuring the elements to be displayed to see where their far and near points are in the workspace. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

Perspective Display Mode 70 is like Perspective Display Mode 60 except that the near and far points that control the diffuse fill lighting are adjustable. Normally you would use Perspective Display Mode 60 to have the program find the near and far lighting points as a trial run, then select Perspective Display Mode 70 and increase the spacing between the near and far lighting points to allow the elements to be displayed to rotate or move between frames of an animation without having their parts move outside the lighting point range, and clip the lighting values maximum and minimum values.

Perspective Display Mode 70 is mostly for use in controlling the lighting during an animation. Perspective Display Mode 60 sets the lighting near and far points close to the elements to be displayed to maximize the lighting contrast. When elements are moving around if Perspective Display Mode 60 is used the lighting will change as the elements move, which may not be desirable if you want the element to appear to be moving through a fixed lighting field. To get a fixed lighting field you use Perspective Display Mode 70 and set the near and far lighting points closer and farther than the maximum movement of the elements to be displayed. If an element moves closer than the near point it will "burn out" at full white, and if an element moves farther away than the lighting far point it will render in "shadow black" and become hard to see.

The difference between Perspective Display Mode 70 and Perspective Display Mode 50 is that an additional movable light source is present in Perspective Display Mode 70 to create modeling and reflections on the surface of the triangle elements. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

Perspective Display Mode 71 is like Perspective Display Mode 61 except that the near and far points that control the diffuse fill lighting are adjustable. Normally you would use Perspective Display Mode 61 to have the program find the near and far lighting points as a trial run, then select Perspective Display Mode 71 and increase the spacing between the near and far lighting points to allow the elements to be displayed to rotate or move between frames of an animation without having their parts move outside the lighting point range, and clip the lighting values maximum and minimum values.

Perspective Display Mode 71 is mostly for use in controlling the lighting during an animation. Perspective Display Mode 61 sets the lighting near and far points close to the elements to be displayed to maximize the lighting contrast. When elements are moving around if Perspective Display Mode 61 is used the lighting will change as the elements move, which may not be desirable if you want the element to appear to be moving through a fixed lighting field. To get a fixed lighting field you use Perspective Display Mode 71 and set the near and far lighting points closer and farther than the maximum movement of the elements to be displayed. If an element moves closer than the near point it will "burn out" at full white, and if an element moves farther away than the lighting far point it will render in "shadow black" and become hard to see.

The difference between Perspective Display Mode 71 and Perspective Display Mode 51 is that an additional movable light source is present in Perspective Display Mode 71 to create modeling and reflections on the surface of the triangle elements. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

Perspective Display Mode 72 is like Perspective Display Mode 62 except that the near and far points that control the diffuse fill lighting are adjustable. Normally you would use Perspective Display Mode 62 to have the program find the near and far lighting points as a trial run, then select Perspective Display Mode 72 and increase the spacing between the near and far lighting points to allow the elements to be displayed to rotate or move between frames of an animation without having their parts move outside the lighting point range, and clip the lighting values maximum and minimum values.

Perspective Display Mode 72 is mostly for use in controlling the lighting during an animation. Perspective Display Mode 62 sets the lighting near and far points close to the elements to be displayed to maximize the lighting contrast. When elements are moving around if Perspective Display Mode 62 is used the lighting will change as the elements move, which may not be desirable if you want the element to appear to be moving through a fixed lighting field. To get a fixed lighting field you use Perspective Display Mode 72 and set the near and far lighting points closer and farther than the maximum movement of the elements to be displayed. If an element moves closer than the near point it will "burn out" at full white, and if an element moves farther away than the lighting far point it will render in "shadow black" and become hard to see.

The difference between Perspective Display Mode 72 and Perspective Display Mode 52 is that an additional movable light source is present in Perspective Display Mode 72 to create modeling and reflections on the surface of the triangle elements. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

Perspective Display Mode 73 is like Perspective Display Mode 63 except that the near and far points that control the diffuse fill lighting are adjustable. Normally you would use Perspective Display Mode 63 to have the program find the near and far lighting points as a trial run, then select Perspective Display Mode 73 and increase the spacing between the near and far lighting points to allow the elements to be displayed to rotate or move between frames of an animation without having their parts move outside the lighting point range, and clip the lighting values maximum and minimum values.

Perspective Display Mode 73 is mostly for use in controlling the lighting during an animation. Perspective Display Mode 63 sets the lighting near and far points close to the elements to be displayed to maximize the lighting contrast. When elements are moving around if Perspective Display Mode 63 is used the lighting will change as the elements move, which may not be desirable if you want the element to appear to be moving through a fixed lighting field. To get a fixed lighting field you use Perspective Display Mode 73 and set the near and far lighting points closer and farther than the maximum movement of the elements to be displayed. If an element moves closer than the near point it will "burn out" at full white, and if an element moves farther away than the lighting far point it will render in "shadow black" and become hard to see.

The difference between Perspective Display Mode 73 and Perspective Display Mode 53 is that an additional movable light source is present in Perspective Display Mode 73 to create modeling and reflections on the surface of the triangle elements. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

Perspective Display Mode 74 is like Perspective Display Mode 64 except that the near and far points that control the diffuse fill lighting are adjustable. Normally you would use Perspective Display Mode 64 to have the program find the near and far lighting points as a trial run, then select Perspective Display Mode 74 and increase the spacing between the near and far lighting points to allow the elements to be displayed to rotate or move between frames of an animation without having their parts move outside the lighting point range, and clip the lighting values maximum and minimum values.

Perspective Display Mode 74 is mostly for use in controlling the lighting during an animation. Perspective Display Mode 64 sets the lighting near and far points close to the elements to be displayed to maximize the lighting contrast. When elements are moving around if Perspective Display Mode 64 is used the lighting will change as the elements move, which may not be desirable if you want the element to appear to be moving through a fixed lighting field. To get a fixed lighting field you use Perspective Display Mode 74 and set the near and far lighting points closer and farther than the maximum movement of the elements to be displayed. If an element moves closer than the near point it will "burn out" at full white, and if an element moves farther away than the lighting far point it will render in "shadow black" and become hard to see.

The difference between Perspective Display Mode 74 and Perspective Display Mode 54 is that an additional movable light source is present in Perspective Display Mode 74 to create modeling and reflections on the surface of the triangle elements. By adjusting the brightness ratio between the frontal fill light and the movable light source by means of the various adjustment values provided you can create different lighting effects to suit the elements being displayed. By changing the near and far points of the frontal fill light source you can make it brighter or dimmer relative to the movable light source.

Perspective Display Modes 44 and 54 are better suited, generally, than Perspective Display Mode Series 60 and 70 for the creation of image files to be converted into tool paths for machining or engraving, since the movable light source is generally not indicated for that application.

This is an example made using Perspective Display Mode 74 and adjusting the fill lighting near and far points in order to alter the ratio between the frontal fill lighting and the movable light source.

You can use the Main Menu Preview command to experiment with the effect of the various lighting values before you save your rendered images.

Some artifacts visible in the JPG compressed images linked to in this Web site may not be present in the original BMP image files, and may have been introduced during file type conversion.

This is an example made using Perspective Display Mode 74 and adjusting the lighting values and element rotation in order to alter the lighting qualities in the rendering.

You can use the Main Menu Preview command to experiment with the effect of the various lighting values and view point rotations before you save your rendered images. You can also leave the lighting values alone and use the ROTATE command to rotate the elements in the workspace to get different locations for the reflections without having to move the view point.

Some artifacts visible in the JPG compressed images linked to in this Web site may not be present in the original BMP image files, and may have been introduced during file type conversion.

This is an example made using Perspective Display Mode 74 uses the same adjustments of the lighting values and element rotation in order to alter the lighting qualities in the rendering as in the above example, but changes the background color to add some color contrast.

You can use the Drawing Editor Setup Palette command to experiment with the effect different background colors might have. The background color is set to the same color as is assigned to line color 0 in the Setup Palette in those video modes that display the background color.

This is an example made using Perspective Display Mode 74 and adding a generated background. The CRT BACKGROUND command in the Files Utilities Video sub-menu can generate various backgrounds, See Section: 3.3.7.6, Section: 4.20.91.0, and Section: 3.4.52.C for more information about the CRT BACKGROUND command.

This is an example made using Perspective Display Mode 74 and adding a scanned photo background. The Preview and DISPLAY commands can load background images, See Section: 3.3.7.6 and Section: 3.4.52.D for more information about the Preview and DISPLAY commands.