https://wiki.luxcorerender.org/index.php?action=history&feed=atom&title=Shape%3A_Pointiness 2026-05-07T14:00:32Z Revision history for this page on the wiki MediaWiki 1.43.5 https://wiki.luxcorerender.org/index.php?title=Shape:_Pointiness&diff=75&oldid=prev 2017-12-04T13:55:53Z

<p>Created page with &quot;= Shape: Pointiness = <a href="/LuxCore_SDL_Reference_Manual_v2.0#Type:_pointiness" title="LuxCore SDL Reference Manual v2.0"> &#039;&#039;&#039;SDL properties&#039;&#039;&#039; </a> Contains surface curvature information in vertex alpha channel.&lt;br&gt; You...&quot;</p> <p><b>New page</b></p><div>= Shape: Pointiness =<br /> <br /> [[ LuxCore_SDL_Reference_Manual_v2.0#Type:_pointiness | &#039;&#039;&#039;SDL properties&#039;&#039;&#039; ]]<br /> <br /> Contains surface curvature information in vertex alpha channel.&lt;br&gt;<br /> You can access this information in materials via a hitpointalpha texture.&lt;br&gt;<br /> The values range from -1 to 1 (float).&lt;br&gt;<br /> Values from -1 to 0 are concave, while values from 0 to 1 are convex.<br /> <br /> ====Example: Convex====<br /> <br /> &lt;pre&gt;<br /> scene.textures.curvature_orig.type = hitpointalpha<br /> ##<br /> # Work only on convex side<br /> scene.textures.curvature.type = clamp<br /> scene.textures.curvature.texture = curvature_orig<br /> scene.textures.curvature.min = 0.0<br /> scene.textures.curvature.max = 1.0<br /> &lt;/pre&gt;<br /> <br /> [[File:Pointiness_convex.jpg]]<br /> <br /> ====Example: Concave====<br /> <br /> &lt;pre&gt;<br /> scene.textures.curvature_orig.type = hitpointalpha<br /> ##<br /> # Work only on concave side<br /> scene.textures.flipped_curvature.type = scale<br /> scene.textures.flipped_curvature.texture1 = curvature_orig<br /> scene.textures.flipped_curvature.texture2 = -1.0<br /> scene.textures.curvature.type = clamp<br /> scene.textures.curvature.texture = flipped_curvature<br /> scene.textures.curvature.min = 0.0<br /> scene.textures.curvature.max = 1.0<br /> &lt;/pre&gt;<br /> <br /> [[File:Pointiness_concave.jpg]]<br /> <br /> ====Example: Both====<br /> <br /> &lt;pre&gt;<br /> scene.textures.curvature_orig.type = hitpointalpha<br /> ##<br /> # Work on both<br /> scene.textures.curvature.type = abs<br /> scene.textures.curvature.texture = curvature_orig<br /> &lt;/pre&gt;<br /> <br /> [[File:Pointiness_both.jpg]]</div>

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