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	<title>Sigillarium &#187; image based lighting</title>
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		<title>Copulating mip_matteshadow &amp; IBL</title>
		<link>http://www.sigillarium.com/blog/lang/en/175</link>
		<comments>http://www.sigillarium.com/blog/lang/en/175#comments</comments>
		<pubDate>Sun, 17 May 2009 04:16:24 +0000</pubDate>
		<dc:creator>Sagroth</dc:creator>
				<category><![CDATA[Render]]></category>
		<category><![CDATA[alpha]]></category>
		<category><![CDATA[environment]]></category>
		<category><![CDATA[ibl]]></category>
		<category><![CDATA[image based lighting]]></category>
		<category><![CDATA[maya]]></category>
		<category><![CDATA[mentalray]]></category>
		<category><![CDATA[mia_envblur]]></category>
		<category><![CDATA[mib_color_mix]]></category>
		<category><![CDATA[mib_opacity]]></category>
		<category><![CDATA[mib_transparency]]></category>
		<category><![CDATA[mip_matteshadow]]></category>
		<category><![CDATA[shading]]></category>
		<category><![CDATA[shadow]]></category>

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		<description><![CDATA[Just recently had a lot of headache trying to force mip_matteshadow shader to reveal IBL texture through itself. Multiple examples on the web utilize mip_mirrorball and mip_cameramap, but what to do with simple latlong image &#8211; found nothing. Actually, there were suggestions to use mib_lookup_spherical, but in my opinion synchronizing it with IBL rotations is [...]]]></description>
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