On Sun, Nov 25, 2012 at 8:07 AM, Bill Lorensen <span dir="ltr"><<a href="mailto:bill.lorensen@gmail.com" target="_blank">bill.lorensen@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Move the light to 0,0,2 and you will see it. I'm not yet sure why this works.</blockquote><div><br></div>When I move the light to (0,0,2), I do see one side of the plane (from the viewpoint of the light) (an explanation of why would indeed be helpful :) ), but the back of the plane is still black. I assume this has something to do with the direction of the plane's normal, but I don't understand why you can see the back of the plane without the light, but not with the light. Whatever ambient light was available in the scene before adding the new light should still be there after the additional light is added, no?<br clear="all">
<br>David<br></div>