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<TITLE>CL_SpriteDescription::add_alphaclipped_frames_free - ClanLib Game SDK</TITLE>
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<h1>CL_SpriteDescription::add_alphaclipped_frames_free</h1>
<p> Adds images separated with pure alpha (within trans_limit).</p>
<pre>
void add_alphaclipped_frames_free(
CL_PixelBuffer provider, int xpos = 0, int ypos = 0, float trans_limit = 0.05f);
</pre>
<p><b>Parameters:</b></p>
<dl>
<dt><i>provider</i></dt><dd>Image source.</dd>
<dt><i>xpos, ypos</i></dt><dd>Upper left position where alpha cutting should begin.</dd>
<dt><i>trans_limit</i></dt><dd>Amount of non-transparent alpha allowed before a pixel is not considered transparent.</dd>
<dt><i>delete_provider</i></dt><dd>If true, deletes provider when sprite description is destroyed.</dd>
</dl>
<p><b>Detailed description:</b></p> <p>The alpha clipper will cut out frames from an image based on
the transparency in the picture. It scans the lines horizontally
from top to bottom. As soon as a non-transarent pixel is discovered,
the clipper finds the bounding box for that region and then moves on.</p>
<p><b>See also:</b></p>
<p><a href="CL_SpriteDescription.html">CL_SpriteDescription</a> | <a href="CL_PixelBuffer.html">CL_PixelBuffer</a></p>
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