Difference between revisions of "Reference Talk:Camera"
Jump to navigation
Jump to search
Jholsenback (talk | contribs) m (correction) |
Jholsenback (talk | contribs) m (additional narrative) |
||
| Line 2: | Line 2: | ||
<p>Together the <code>right</code> <em>(width)</em> and <code>up</code> <em>(height)</em> vectors define the <em>aspect ratio</em> of the resulting image.</p> | <p>Together the <code>right</code> <em>(width)</em> and <code>up</code> <em>(height)</em> vectors define the <em>aspect ratio</em> of the resulting image.</p> | ||
| − | <p>A {{Change}} in version 3.8 redefines how the <code>right</code> vector default is derived. Previously a fixed value it is now a calculated value that is based on the image width and height specified at render time. As usual, the image width and height can be specified from either the pull down menu available in <em>GUI</em> versions <em>ONLY</em> or the <code>+Wn</code> and <code>+Hn</code> command-line options available to <em>ALL</em> versions. This behavior is conditional upon the <em>last</em> effective <code>#version</code> directive before the camera definition.</p> | + | <p>A {{Change}} in version 3.8 redefines how the <code>right</code> vector default is derived. Previously a fixed value, it is now a calculated value that is based on the image width and height specified at render time. As usual, the image width and height can be specified from either the pull down menu available in <em>GUI</em> versions <em>ONLY</em> or the <code>+Wn</code> and <code>+Hn</code> command-line options available to <em>ALL</em> versions. This behavior is conditional upon the <em>last</em> effective <code>#version</code> directive before the camera definition. The default <code>up</code> vector remains as <code><0,1,0></code>.</p> |
<p>To retain legacy behavior see the example below:</p> | <p>To retain legacy behavior see the example below:</p> | ||
Revision as of 21:16, 16 July 2017
Aspect Ratio
Together the right (width) and up (height) vectors define the aspect ratio of the resulting image.
A Change in version 3.8 redefines how the right vector default is derived. Previously a fixed value, it is now a calculated value that is based on the image width and height specified at render time. As usual, the image width and height can be specified from either the pull down menu available in GUI versions ONLY or the +Wn and +Hn command-line options available to ALL versions. This behavior is conditional upon the last effective #version directive before the camera definition. The default up vector remains as <0,1,0>.
To retain legacy behavior see the example below:
#version X.y; // X.y is a version less than 3.8
camera {
location <3,5,-10>
look_at <0,2,1>
}