l
p[-1,-1].r   red value of the pixel diagonally left and up from current pixel
</samp></pre>

<p>To specify an absolute position, use braces, rather than brackets.</p>

<pre class="p-3 mb-2 text-body-secondary bg-body-tertiary"><samp>p{0,0}.r     red value of the pixel in the upper left corner of the image
p{12,34}.b   blue pixel value at column number 12, row 34 of the image
</samp></pre>

<p>Integer values of the position retrieve the color of the pixel referenced, while non-integer position values retur