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<!DOCTYPE html>
<html>
<head>
<title>beginCamera \ Language (API)</title>
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<meta name="Author" content="Ce Gao" />
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<tr class="name-row">
<th scope="row">Name</th>
<td><h3>beginCamera</h3></td>
</tr>
<tr class=""><th scope="row">Examples</th><td>
<div class="example"> <img src="img/beginCamera0.png"/>
<pre class='margin'>settings <- function() {
size(100, 100, P3D)
}
draw <- function() {
noFill()
beginCamera()
camera()
rotateX(-PI/6)
endCamera()
translate(50, 50, 0)
rotateY(PI/3)
box(45)
}
</pre>
</div>
</tr>
<tr class="">
<th scope="row">Description</th>
<td>
The <b>beginCamera()</b> and <b>endCamera()</b> functions enable advanced customization of the camera space. The functions are useful if you want to more control over camera movement, however for most users, the <b>camera()</b> function will be sufficient.<br /><br />The camera functions will replace any transformations (such as <b>rotate()</b> or <b>translate()</b>) that occur before them in <b>draw()</b>, but they will not automatically replace the camera transform itself. For this reason, camera functions should be placed at the beginning of <b>draw()</b> (so that transformations happen afterwards), and the <b>camera()</b> function can be used after <b>beginCamera()</b> if you want to reset the camera before applying transformations.<br /><br />This function sets the matrix mode to the camera matrix so calls such as <b>translate()</b>, <b>rotate()</b>, applyMatrix() and resetMatrix() affect the camera. <b>beginCamera()</b> should always be used with a following <b>endCamera()</b> and pairs of <b>beginCamera()</b> and <b>endCamera()</b> cannot be nested.
</td>
</tr>
<tr class=""><th scope="row">Syntax</th><td><pre>beginCamera()</pre></td></tr>
<tr><th scope="row">Related</th><td class="code">
<a class="code" href="./camera.html">camera</a><br />
<a class="code" href="./endCamera.html">endCamera</a><br />
<a class="code" href="./applyMatrix.html">applyMatrix</a><br />
<a class="code" href="./resetMatrix.html">resetMatrix</a><br />
<a class="code" href="./translate.html">translate</a><br />
<a class="code" href="./scale.html">scale</a><br />
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