Conditional Line - Revision history

Steffen at 12:49, 2 April 2018

2018-04-02T12:49:43Z

← Older revision		Revision as of 12:49, 2 April 2018
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	== Color for Condlines ==		== Color for Condlines ==

	Condlines ~~will~~ usually have color 24, unless a very special other purpose requires using a very special different color.		Condlines should have usually have the default edge color 24,
			unless a very special other purpose requires using a very special different color.

	== Other Benefits ==		== Other Benefits ==

Steffen at 12:49, 2 April 2018

2018-04-02T12:49:22Z

← Older revision		Revision as of 12:49, 2 April 2018
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	[[Image:with conditional lines.png]]		[[Image:with conditional lines.png]]

			== Color for Condlines ==

			Condlines will usually have color 24, unless a very special other purpose requires using a very special different color.

	== Other Benefits ==		== Other Benefits ==

Steffen at 12:45, 2 April 2018

2018-04-02T12:45:26Z

← Older revision		Revision as of 12:45, 2 April 2018
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	Here is a list of programs which can add condlines for you:		Here is a list of programs which can add condlines for you:
	* [[Edger2]]		* [[Edger2]]

			[[Category:LDraw Files Syntax]]

Steffen: /* Programs */

2018-04-02T10:20:15Z

Programs

← Older revision		Revision as of 10:20, 2 April 2018
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	Using a program is much easier.		Using a program is much easier.
	Here is a list of programs which can add condlines for you:		Here is a list of programs which can add condlines for you:
	* [[~~edger2~~]]		* [[Edger2]]

Steffen at 10:15, 2 April 2018

2018-04-02T10:15:43Z

← Older revision		Revision as of 10:15, 2 April 2018
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	== Programs ==		== Programs ==

	Adding conditional lines manually is ~~too~~ tedious.		Adding conditional lines manually is tedious, and you most probably will make mistakes during that.
	~~The easiest way to~~ add ~~them is using the program~~ [[edger2]].		Using a program is much easier.
			Here is a list of programs which can add condlines for you:
			* [[edger2]]

Steffen at 10:02, 2 April 2018

2018-04-02T10:02:07Z

← Older revision		Revision as of 10:02, 2 April 2018
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	You can read more about the syntax of condlines in an LDRAW file		You can read more about the syntax of condlines in an LDRAW file
	at the LDRAW file format specification.		at the [[LDRAW file format specification]].

	== Programs ==		== Programs ==

Steffen at 09:42, 2 April 2018

2018-04-02T09:42:33Z

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	This can be best seen at an example. See here a door with a curved hinge, which disappears out of the viewer's view.		This can be best seen at an example. See here a door with a curved hinge, which disappears out of the viewer's view.
	~~Here is an~~ image ~~rendered where~~ the ~~conditional lines~~ have been ~~temporarily removed from the render~~:		In the following image, the condlines have been suppressed:

	[[Image:without conditional lines.png]]		[[Image:without conditional lines.png]]

	You can see that such images look somewhat unsatisfactory. Enabling ~~them~~ in the render makes the picture ~~much~~ more beautiful:		You can see that such images look somewhat unsatisfactory.
			Enabling condlines in the render makes the picture more beautiful:

	[[Image:with conditional lines.png]]		[[Image:with conditional lines.png]]
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	They also can be used for a second, not directly intuitive purpose:		They also can be used for a second, not directly intuitive purpose:
	When rendering programs calculate normals of curved surfaces, they can use the condlines as a hint for the "curvature" of that surface,		When rendering programs calculate normals of curved surfaces, they can use the condlines as a hint for the "curvature" of that surface,
	and thereby ~~make it~~ appear more smooth ~~in a render~~.		and thereby use them to calculate normals over the whole surface, making the surface appear more smooth.
	<!-- an example image would be nice here -->		<!-- an example image would be nice here -->

	== Syntax ==		== Syntax ==

	You can read more about the syntax ~~(how to put~~ condlines ~~into your~~ file)		You can read more about the syntax of condlines in an LDRAW file
	at the LDRAW file format specification.		at the LDRAW file format specification.

Steffen: Created page with "A '''conditional line''' (sometimes abbreviated as '''condline''') is an edge line contained in an LDRAW file which is not always displayed, but only under certain view angles..."

2018-04-02T09:39:17Z

Created page with "A '''conditional line''' (sometimes abbreviated as '''condline''') is an edge line contained in an LDRAW file which is not always displayed, but only under certain view angles..."

New page

A '''conditional line''' (sometimes abbreviated as '''condline''')
is an edge line contained in an LDRAW file which is not always displayed, but only under certain view angles.

The purpose of that is to make rendered instructions look good in the case
where a curved surface disappears out of the viewer's view.

This can be best seen at an example. See here a door with a curved hinge, which disappears out of the viewer's view.
Here is an image rendered where the conditional lines have been temporarily removed from the render:

[[Image:without conditional lines.png]]

You can see that such images look somewhat unsatisfactory. Enabling them in the render makes the picture much more beautiful:

[[Image:with conditional lines.png]]

== Other Benefits ==

Condlines not only can improve the look of edge lines in an instruction image.
They also can be used for a second, not directly intuitive purpose:
When rendering programs calculate normals of curved surfaces, they can use the condlines as a hint for the "curvature" of that surface,
and thereby make it appear more smooth in a render.


== Syntax ==

You can read more about the syntax (how to put condlines into your file)
at the LDRAW file format specification.

== Programs ==

Adding conditional lines manually is too tedious.
The easiest way to add them is using the program [[edger2]].