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This help file is associated with the trad interface to the Radiance |
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rad(1) program. Trad consists of trad.wsh and one do_*.tcl file for |
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each screen. There are currently seven such screens: Action, File, |
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Options, Results, Scene, Views and Zone. |
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each screen. There are currently seven such screens: File, Scene, |
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Zone, Views, Options, Action and Results. |
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.Trad.Intro |
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added to the picture file name along with the standard ".pic" suffix. |
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The standard views are specified by strings of the form |
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"[Xx]?[Yy]?[Zz]?[vlah]?". |
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"[Xx]?[Yy]?[Zz]?[vlahc]?". |
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(That is, an optional upper or lower case X followed by an optional |
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upper or lower case Y followed by an optional upper or lower case Z |
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followed by an optional lower case V, L, A or H.) |
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followed by an optional lower case V, L, A, H or C.) |
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The letters indicate the desired view position, where upper case "X" |
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means maximum X, lower case "y" means minimum Y and so on. |
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The final letter is the view type, where 'v' is perspective (the |
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default), 'l' is parallel, 'a' is angular fisheye, and 'h' is |
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hemispherical fisheye. |
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default), 'l' is parallel, 'a' is angular fisheye, 'h' is |
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hemispherical fisheye and 'c' is for cylindrical panorama. |
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A perspective view from maximum X, minimum Y would be "Xy" or |
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"Xyv". |
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A parallel view from maximum Z would be "Zl". |
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Consult the rpict(1) manual page for a full description of the various |
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view options, all of which begin with "-v". |
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Just briefly, the "-vt?" option sets the view type, where "?" is |
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replaced by one of the letters "v, l, a or h", corresponding to |
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perspective, parallel, angular and hemispherical fisheye, respectively. |
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replaced by one of the letters "v, l, a, h or c", corresponding to |
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perspective, parallel, angular fisheye, hemispherical fisheye |
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and cylindrical panorama, respectively. |
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The "-vp x y z" option sets the view position (eyepoint), where "x y z" |
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is replaced by the position in 3-space. |
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The "-vd xd yd zd" option sets the view direction, where "xd yd zd" |
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The default value for this variable is "512". |
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.Views.Rawsave |
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The "Rawsave" check box determines whether or not the raw output picture |
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from rpict will be saved. |
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The default action (box unchecked) is to remove this file, since it |
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takes up disk space and is not generally useful. |
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However, if you wish to perform some special filtering function on |
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the file, this file can be renamed instead of removed by checking this box. |
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The final name in this case will be the same as the finished |
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picture, except with a ".rwp" suffix. |
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.Views.Copy |
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The "Copy" button in the Views screen permits those variables |
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Normally, progress reports and errors during batch renderings |
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are sent to the error file given by the root of the rad input |
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file name followed by the ".err" suffix. |
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(See the "Errors" topic under the "Action" screen category.) |
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(See the "CheckErr" topic under the "Action" screen category.) |
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If you wish these reports and errors to be directed to a different |
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file, follow the time interval by a space and a file name. |
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Other views may be accessed within rview using the "L name" |
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command, and new views can be added with the "V name" |
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command. |
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(See the rview(1) man page and the "View" topic in the current |
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help category for more information.) |
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When using the "V" command to change an existing view, do not |
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give it an existing name because the previous view will not be overridden. |
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Instead, give it a new name (or no name, which will show up as |
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a number later), then use the Views screen to override the previous |
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view definition with the new one. |
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(See the "View" topic in the current |
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help category, the "Change" topic under "Views" and the rview(1) |
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manual page for more information.) |
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If the octree is out-of-date, it will be rebuilt before rendering |
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begins. |
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If the special entry "ALL" is selected, then every view in the |
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current list will be rendered if it hasn't been already. |
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The view menu next to the "rview" button will be disabled if there |
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is only one view to choose from. |
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The view menu next to the "Start" button will be disabled if there |
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is a batch job in progress, and thus the view cannot be changed. |
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The batch rendering view menu also selects the view or views |
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to use in producing a script during a dry run. |
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the error file periodically. |
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(This file is named by the root of the rad input file followed by |
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".err".) |
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When a batch process is started or already running, this button |
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will be disabled. |
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When a batch process is started or already running, or when a |
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process is on another host and its status is unknown, |
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this button will be disabled. |
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The background process can be killed during this or later |
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invocations of trad using the "Kill" button. |
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If the process was started on another machine and the status is unknown, |
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it will be necessary to run trad from the other host or remove the error |
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file manually before starting a background process on this machine. |
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This is to protect you from the great confusion that results when two |
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machines are working from the same project file. |
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.Action.Kill |
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rendering, though some new startup costs will be incurred. |
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The "Kill" button is disabled if no running batch process is |
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detected. |
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detected on the current host machine. |
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.Action.CheckErr |
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