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<p>distance from lights, its angle to the camera and material properties (e.g. <a href="page.php?w=bidirectional_reflectance_distribution_function">bidirectional reflectance distribution function</a>) to create a <a href="page.php?w=photorealistic_rendering">photorealistic</a> effect.</p>

<p>Shading is performed during the <a href="page.php?w=Rendering_%28computer_graphics%29">rendering</a> process by a program called a <a href="page.php?w=shader">shader</a>.</p>

<p><big>Surface angle to a light source</big></p>
<p>Shading alters the colors of faces in</p><p>
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