From: "Saved by Windows Internet Explorer 8"
Subject: Indirect Illumination examples
Date: Sun, 14 Nov 2010 15:16:03 +0200
MIME-Version: 1.0
Content-Type: multipart/related;
	type="text/html";
	boundary="----=_NextPart_000_0468_01CB840E.D9E73D10"
X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7600.16543

This is a multi-part message in MIME format.

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Indirect Illumination examples</TITLE>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type><LINK=20
rel=3Dstylesheet type=3Dtext/css=20
href=3D"http://www.spot3d.com/vray/help/150SP1/manual.css">
<META name=3DGENERATOR content=3D"MSHTML 8.00.7600.16671"></HEAD>
<BODY>
<TABLE class=3DnavTitle border=3D0 cellSpacing=3D0 cellPadding=3D4 =
width=3D"100%">
  <TBODY>
  <TR>
    <TD width=3D"100%">
      <H1>Light cache examples</H1></TD>
    <TD width=3D0%>
      <DIV align=3Dcenter><A=20
      =
href=3D"http://www.spot3d.com/vray/help/150SP1/index.htm">Home</A></DIV><=
/TD>
    <TD width=3D0%>
      <DIV align=3Dcenter><A=20
      =
href=3D"http://www.spot3d.com/vray/help/150SP1/render_params.htm">Render&=
nbsp;params</A></DIV></TD>
    <TD width=3D0%>
      <DIV align=3Dcenter><A=20
      =
href=3D"http://www.spot3d.com/vray/help/150SP1/render_params_lightmap.htm=
">Light&nbsp;cache</A></DIV></TD></TR></TBODY></TABLE>
<P>&nbsp;</P>
<BLOCKQUOTE>
  <P><A=20
  =
href=3D"http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm#ex=
1">Example=20
  1: The Subdivs parameter</A></P>
  <P><A=20
  =
href=3D"http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm#ex=
2">Example=20
  2: The Sample size parameter</A></P>
  <P><A=20
  =
href=3D"http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm#ex=
3">Example=20
  3: The Scale parameter</A></P></BLOCKQUOTE>
<H2><A name=3Dex1></A>Example 1: The Subdivs parameter</H2>
<BLOCKQUOTE>
  <P>The <SPAN class=3Dparameter>Subdivs</SPAN> parameter controls the =
number of=20
  rays that are shot into the scene, and the "noise" quality of the =
light cache=20
  samples.</P>
  <P>&nbsp;</P>
  <P>Here is a scene rendered with different settings for the <SPAN=20
  class=3Dparameter>Subdivs</SPAN> parameter, all other settings are the =

same.</P></BLOCKQUOTE>
<UL>
  <LI>As we add more samples, the noise is reduced, but the render times =

  increase. When the Subdivs parameter is increased twice, the light =
cache takes=20
  approximately 4 times as long to calculate. </LI></UL>
<BLOCKQUOTE>
  <P>&nbsp;</P>
  <TABLE border=3D0 cellSpacing=3D0 cellPadding=3D4 width=3D0%>
    <TBODY>
    <TR>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/subdivs_500.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_subdivs_500.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/subdivs_1000.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_subdivs_1000.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/subdivs_2000.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_subdivs_2000.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Subdivs</SPAN> =3D =
<SPAN=20
        class=3Dvalue>500</SPAN></DIV></TD>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Subdivs</SPAN> =3D =
<SPAN=20
        class=3Dvalue>1000</SPAN></DIV></TD>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Subdivs</SPAN> =3D =
<SPAN=20
        class=3Dvalue>2000</SPAN></DIV></TD></TR></TBODY></TABLE>
  <P>&nbsp;</P></BLOCKQUOTE>
<H2><A name=3Dex2></A>Example 2: The Sample size parameter</H2>
<BLOCKQUOTE>
  <P>The <SPAN class=3Dparameter>Sample size</SPAN> parameter controls =
the size of=20
  the individual light cache samples. Smaller values produce a more =
detailed=20
  lighting solution, but are noisier and take more RAM. Larger values =
produce=20
  less detail, but take less RAM and may be faster to calculate.</P>
  <P>&nbsp;</P>
  <P>Here is a scene rendered with different values for the <SPAN=20
  class=3Dparameter>Sample size</SPAN> parameter. All other values are =
the=20
  same.</P></BLOCKQUOTE>
<UL>
  <LI>Note the light leak from the wall on the right in the last image - =
this is=20
  because samples from the other side of the wall are quite large =
(because of=20
  the <SPAN class=3Dvalue>Screen</SPAN> <SPAN =
class=3Dparameter>Scale</SPAN>) and=20
  end up being used on the side facing the camera (compare this with the =
<SPAN=20
  class=3Dvalue>World</SPAN> <SPAN class=3Dparameter>Scale</SPAN> in <A=20
  =
href=3D"http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm#ws=
cale">Example=20
  3</A>).=20
  <LI>Note the difference in the noise level between the samples. =
</LI></UL>
<BLOCKQUOTE>
  <P>&nbsp;</P>
  <TABLE border=3D0 cellSpacing=3D0 cellPadding=3D4 width=3D0%>
    <TBODY>
    <TR>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/ssize_01.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_ssize_01.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/subdivs_1000.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_subdivs_1000.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/ssize_04.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_ssize_04.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Sample size</SPAN> =
=3D <SPAN=20
        class=3Dvalue>0.01</SPAN></DIV></TD>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Sample size</SPAN> =
=3D <SPAN=20
        class=3Dvalue>0.02</SPAN></DIV></TD>
      <TD>
        <DIV align=3Dcenter><SPAN class=3Dparameter>Sample size</SPAN> =
=3D <SPAN=20
        class=3Dvalue>0.04</SPAN></DIV></TD></TR></TBODY></TABLE>
  <P>&nbsp;</P></BLOCKQUOTE>
<H2><A name=3Dex3></A>Example 3: The Scale parameter</H2>
<BLOCKQUOTE>
  <P>The Scale parameter determines whether the <SPAN =
class=3Dparameter>Sample=20
  size</SPAN> and <SPAN class=3Dparameter>Filter size</SPAN> parameters =
are in=20
  screen space, or world space.</P>
  <P>&nbsp;</P>
  <P>In the table below, the <SPAN class=3Dvalue>Screen</SPAN> scale was =
used, and=20
  the scene was rendered with different image and world sizes. The <SPAN =

  class=3Dparameter>Sample size</SPAN> was constant for all images - the =
default=20
  <SPAN class=3Dvalue>0.02</SPAN>.</P></BLOCKQUOTE>
<UL>
  <LI>As you can see, we always get the same number of light cache =
samples for=20
  all cases, regardless of resolution or scene size - in fact, when =
scaled to=20
  the same size, the images look identical. This is why the <SPAN=20
  class=3Dvalue>Screen</SPAN> <SPAN class=3Dparameter>Scale</SPAN> is =
applicable to=20
  the large variety of scenes. </LI></UL>
<BLOCKQUOTE>
  <P>&nbsp;</P>
  <TABLE border=3D0 cellSpacing=3D0 cellPadding=3D4 width=3D0%>
    <TBODY>
    <TR>
      <TD>
        <DIV align=3Dcenter></DIV></TD>
      <TD>
        <DIV align=3Dcenter>Scene scaled down to 50%</DIV></TD>
      <TD>
        <DIV align=3Dcenter>Normal scene</DIV></TD>
      <TD>
        <DIV align=3Dcenter>Scene scaled up to 200%</DIV></TD></TR>
    <TR>
      <TD>Resolution 250x300</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/half_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
half_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/half_res.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
half_res.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/half_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
half_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>Resolution 500x600</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/normal_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_normal_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/subdivs_1000.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_subdivs_1000.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/normal_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_normal_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>Resolution 1000x1200</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/double_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_double_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/double_res.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_double_res.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/double_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_double_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR></TBODY></TABLE>
  <P>&nbsp;</P>
  <P><A name=3Dwscale></A>In the table below, the <SPAN =
class=3Dvalue>World</SPAN>=20
  <SPAN class=3Dparameter>Scale</SPAN> mode was used. Again, the scene =
is rendered=20
  at three different resolutions and scales, but with the same light =
cache=20
  parameters. The sample size was set to be 1/5th of the sphere radius =
in the=20
  scene at normal scale.</P></BLOCKQUOTE>
<UL>
  <LI>You can notice that the number of samples again does not depend on =
the=20
  image resolution, but it does depend on the scene size.=20
  <LI>Also notice how the samples near the camera appear larger because =
of the=20
  perspective - in difference from the <SPAN class=3Dvalue>Screen</SPAN> =
<SPAN=20
  class=3Dparameter>Scale</SPAN> mode which compensates for this effect =
and tries=20
  to make the samples with more or less equal size on the image.=20
  <LI>Another thing to note is that we don't get light leaks (compare =
with <A=20
  =
href=3D"http://www.spot3d.com/vray/help/150SP1/examples_lightcache.htm#ex=
2">Example=20
  2</A>), even when the samples are relatively large - this is because =
the <SPAN=20
  class=3Dvalue>World</SPAN> <SPAN class=3Dparameter>Scale</SPAN> forces =
a uniform=20
  sample size on both sides of the right wall. </LI></UL>
<BLOCKQUOTE>
  <P>&nbsp;</P>
  <TABLE border=3D0 cellSpacing=3D0 cellPadding=3D4 width=3D0%>
    <TBODY>
    <TR>
      <TD>
        <DIV align=3Dcenter></DIV></TD>
      <TD>
        <DIV align=3Dcenter>Scene scaled down to 50%</DIV></TD>
      <TD>
        <DIV align=3Dcenter>Normal scene</DIV></TD>
      <TD>
        <DIV align=3Dcenter>Scene scaled up to 200%</DIV></TD></TR>
    <TR>
      <TD>Resolution 250x300</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_half_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
wscale_half_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_half_res_normal_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
wscale_half_res_normal_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_half_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
wscale_half_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>Resolution 500x600</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_normal_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_normal_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_normal_res_normal_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_normal_res_normal_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_normal_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_normal_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR>
    <TR>
      <TD>Resolution 1000x1200</TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_double_res_half_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_double_res_half_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_double_res_normal_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_double_res_normal_scale.png"=20
        width=3D250 height=3D300></A></TD>
      <TD><A=20
        =
href=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache=
/wscale_double_res_double_scale.png"><IMG=20
        border=3D1=20
        =
src=3D"http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/=
tn_wscale_double_res_double_scale.png"=20
        width=3D250 height=3D300></A></TD></TR></TBODY></TABLE>
  <P>&nbsp;</P></BLOCKQUOTE>
<SCRIPT type=3Dtext/javascript>=0A=
 var gaJsHost =3D (("https:" =3D=3D document.location.protocol) ? =
"https://ssl." : "http://www.");=0A=
 document.write(unescape("%3Cscript src=3D'" + gaJsHost + =
"google-analytics.com/ga.js' type=3D'text/javascript'%3E%3C/script%3E"));=0A=
</SCRIPT>

<SCRIPT type=3Dtext/javascript>=0A=
 try {=0A=
 var pageTracker =3D _gat._getTracker("UA-1351947-2");=0A=
 pageTracker._trackPageview();=0A=
 } catch(err) {}</SCRIPT>
<!-- text below generated by server. PLEASE REMOVE --><!-- =
Counter/Statistics data collection code -->
<SCRIPT language=3DJavaScript=20
src=3D"http://l.yimg.com/d/lib/smb/js/hosting/cp/js_source/whv2_001.js"><=
/SCRIPT>

<SCRIPT language=3Djavascript>geovisit();</SCRIPT>
<NOSCRIPT><IMG border=3D0 alt=3Dsetstats=20
src=3D"http://visit.webhosting.yahoo.com/visit.gif?us1289740329" =
width=3D1=20
height=3D1></NOSCRIPT></BODY></HTML>

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_subdivs_500.png

[encoded data, 111568 characters]
KbyrDX8T39ImHtrlpCckxP8H5w+SoS5eHmIAAAAASUVORK5CYII=

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_subdivs_1000.png

[encoded data, 94992 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_subdivs_2000.png

[encoded data, 87780 characters]
AABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_ssize_01.png

[encoded data, 134064 characters]
1vT/D/6VvjM6bhFDAAAAAElFTkSuQmCC

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_ssize_04.png

[encoded data, 79480 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/half_res_half_scale.png

[encoded data, 101980 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/half_res.png

[encoded data, 101992 characters]
Op40x1ciYLbB/gNc85jKTCXUIQAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/half_res_double_scale.png

[encoded data, 102068 characters]
AAAASUVORK5CYII=

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_normal_res_half_scale.png

[encoded data, 94848 characters]
QmCC

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_normal_res_double_scale.png

[encoded data, 95076 characters]
6AAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_double_res_half_scale.png

[encoded data, 89980 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_double_res.png

[encoded data, 89984 characters]
RK5CYII=

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_double_res_double_scale.png

[encoded data, 90196 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/wscale_half_res_half_scale.png

[encoded data, 91884 characters]
Byv1qLnbuAAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/wscale_half_res_normal_scale.png

[encoded data, 97812 characters]
x/D/WhENzqYLvrgAAAAASUVORK5CYII=

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/wscale_half_res_double_scale.png

[encoded data, 125932 characters]
M3U4/h/G1yyBU/OEkAAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_normal_res_half_scale.png

[encoded data, 77064 characters]
Hl/q/wEYHAhTvg7+LAAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_normal_res_normal_scale.png

[encoded data, 88464 characters]
6z+RCpdotdBZEwAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_normal_res_double_scale.png

[encoded data, 122808 characters]

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_double_res_half_scale.png

[encoded data, 69616 characters]
qwJyOc67MbJLkNT/+V/FuOup9VqQWAAAAABJRU5ErkJggg==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_double_res_normal_scale.png

[encoded data, 83372 characters]
TkSuQmCC

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-Location: http://www.spot3d.com/vray/help/150SP1/images/examples/lightcache/tn_wscale_double_res_double_scale.png

[encoded data, 118484 characters]
8wyzvQkahPG22Y//f84Hr2sk5/V9AAAAAElFTkSuQmCC

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: application/octet-stream
Content-Transfer-Encoding: base64
Content-Location: http://visit.webhosting.yahoo.com/visit.gif?us1289740329

R0lGODlhAQABAOMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAACH5BAEAAAAALAAAAAABAAEAAAQCEEQAOw==

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: text/css;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.spot3d.com/vray/help/150SP1/manual.css

BODY {
	BORDER-LEFT: rgb(204,204,204) 5px dotted; BACKGROUND-COLOR: #ffffff; =
PADDING-LEFT: 2em; WIDTH: 50em; PADDING-RIGHT: 2em; FONT-FAMILY: arial, =
helvetica, sans-serif; COLOR: #333333; MARGIN-LEFT: auto; FONT-SIZE: =
10pt; MARGIN-RIGHT: auto; opacity: 1
}
BODY A {
	COLOR: rgb(117,139,177); TEXT-DECORATION: none
}
BODY A:link {
	COLOR: rgb(117,139,177); TEXT-DECORATION: underline
}
BODY A:visited {
	COLOR: rgb(117,139,177); TEXT-DECORATION: underline
}
BODY A:active {
	TEXT-DECORATION: underline
}
BODY A:hover {
	COLOR: rgb(85,102,136); TEXT-DECORATION: underline
}
.parameter {
	FONT-STYLE: normal; COLOR: rgb(85,85,204); FONT-WEIGHT: bold
}
.term {
	FONT-STYLE: italic; FONT-FAMILY: Georgia,"Times New Roman",Times,serif
}
.value {
	FONT-STYLE: italic; FONT-WEIGHT: bold
}
.navTitle {
	BACKGROUND-COLOR: rgb(255,187,0); COLOR: rgb(255,255,255); FONT-SIZE: =
10pt
}
.navButton {
	BACKGROUND-COLOR: rgb(102,102,102); COLOR: rgb(0,0,0)
}
.navButton:link {
	COLOR: rgb(204,153,0); TEXT-DECORATION: none
}
.navButton:hover {
	COLOR: rgb(204,153,0); TEXT-DECORATION: none
}
.navLink {
	COLOR: rgb(204,153,0); TEXT-DECORATION: none
}
.button {
	FONT-STYLE: normal; COLOR: rgb(85,85,204); FONT-WEIGHT: bold
}
.group {
	FONT-STYLE: italic; FONT-FAMILY: Georgia,"Times New Roman",Times,serif; =
FONT-WEIGHT: bolder
}
.rollout {
	FONT-WEIGHT: bold
}
.tableLeft {
	BACKGROUND-COLOR: rgb(224,224,224); COLOR: rgb(102,102,102)
}
.tableRight {
	BACKGROUND-COLOR: rgb(240,240,240); COLOR: rgb(102,102,102)
}
.tutsteps {
	LIST-STYLE-POSITION: inside; LIST-STYLE-TYPE: square; TEXT-INDENT: 10pt
}
.texttable {
	LEFT: 10in
}
.sidenote {
	FONT-STYLE: italic; FONT-FAMILY: Arial,Helvetica,sans-serif; FONT-SIZE: =
11px
}
BODY H1 {
	MARGIN: 0px; FONT-FAMILY: "Times New Roman",Times,serif
}
P {
	TEXT-ALIGN: justify; MARGIN: 0px
}
BLOCKQUOTE {
	MARGIN: 0px 0px 0px 1em
}
UL {
	TEXT-ALIGN: justify; MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
LI {
	MARGIN-TOP: 0em; MARGIN-BOTTOM: 0em
}
.important {
	COLOR: rgb(192,128,128); FONT-WEIGHT: bold
}
.piccaption {
	FONT-SIZE: smaller; FONT-WEIGHT: bold
}
BODY H2 {
	BORDER-BOTTOM: rgb(170,170,170) 1px solid; BORDER-RIGHT-WIDTH: 1px; =
FONT-FAMILY: Arial,Helvetica,sans-serif; BORDER-TOP-WIDTH: 1px; =
BORDER-LEFT-WIDTH: 1px; FONT-WEIGHT: normal
}
BODY H3 {
	FONT-FAMILY: Arial,Helvetica,sans-serif; FONT-WEIGHT: bold
}
.tableCaption {
	BACKGROUND-COLOR: rgb(255,187,0); COLOR: rgb(255,255,255); FONT-WEIGHT: =
bold
}
.question {
	FONT-WEIGHT: bold
}
TD {
	FONT-SIZE: 10pt
}
.mxscode {
	FONT-FAMILY: "Courier New", Courier, monospace
}
.mxsuser {
	FONT-FAMILY: "Courier New", Courier, monospace
}
.mxsout {
	FONT-FAMILY: "Courier New", Courier, monospace; COLOR: #0000ff
}
.code {
	FONT-FAMILY: "Courier New", Courier, monospace
}

------=_NextPart_000_0468_01CB840E.D9E73D10
Content-Type: application/octet-stream
Content-Transfer-Encoding: quoted-printable
Content-Location: http://l.yimg.com/d/lib/smb/js/hosting/cp/js_source/whv2_001.js

var ycsdone;=0A=
function geovisit()=0A=
{=0A=
  var z;=0A=
  if (ycsdone)=0A=
    return;=0A=
  z=3D"&r=3D"+escape(document.referrer);=0A=
  z=3Dz+"&b=3D"+escape(navigator.appName+" "+navigator.appVersion);=0A=
  w=3DparseFloat(navigator.appVersion);=0A=
  if (w > 2.0) {=0A=
    z=3Dz+"&s=3D"+screen.width+"x"+screen.height;=0A=
    z=3Dz+"&o=3D"+navigator.platform;=0A=
    v=3D"1.2";=0A=
    if (navigator.appName !=3D "Netscape") {=0A=
      z=3Dz+"&c=3D"+screen.colorDepth;=0A=
    } else {=0A=
      z=3Dz+"&c=3D"+screen.pixelDepth=0A=
    }=0A=
    z=3Dz+"&j=3D"+navigator.javaEnabled();=0A=
  } else {=0A=
    v=3D1.0;=0A=
  }=0A=
  z=3Dz+"&v=3D"+v;=0A=
  document.writeln("<img border=3D\"0\" style=3D\"display:none\" =
src=3D\"http://visit.webhosting.yahoo.com/visit.gif?"+z+"\">");=0A=
  ycsdone=3D1;=0A=
}=0A=

------=_NextPart_000_0468_01CB840E.D9E73D10--
