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24<title>Creating Cube Maps</title>
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27<h1>Creating Cube Maps</h1>
28<p>Cubemaps are created under Photoshop as shown below by arranging images for each view direction in a horizontal cross pattern without gaps between images.</p>
29<table class="custom1"><tbody>
30<tr height="32"><td width="30" style="background:white;"> </td><td width="30">+Y</td><td width="30" style="background:white;"> </td><td width="30" style="background:white;"> </td></tr>
31<tr height="32"><td>-X</td><td>-Z</td><td>+X</td><td>+Z</td></tr>
32<tr height="32"><td style="background:white;"> </td><td>-Y</td><td style="background:white;"> </td><td style="background:white;"> </td></tr>
33</tbody></table>
34<p>(The white parts in each of the four corners are not used.)</p>
35<p>Images for each view direction must be squares (with same width and height) having a size that is a power of two equal to or greater than 8 and equal to or less than 1024.<BR> The coordinate axes of each view direction image under Photoshop are defined as follows.</p>
36<table class="arguments" style="width:auto;"><tbody>
37<tr><th style="width:70px;">View Direction</th><th style="width:70px;">Up</th><th style="width:70px;">Right</th></tr>
38<tr><td>+X</td><td>+Y</td><td>+Z</td></tr>
39<tr><td>-X</td><td>+Y</td><td>-Z</td></tr>
40<tr><td>+Y</td><td>+Z</td><td>+X</td></tr>
41<tr><td>-Y</td><td>-Z</td><td>+X</td></tr>
42<tr><td>+Z</td><td>+Y</td><td>-X</td></tr>
43<tr><td>-Z</td><td>+Y</td><td>+X</td></tr>
44</tbody></table>
45<p>Because the direction going up is -Y under CTR, data rotated 180 degrees is output in TGA file additional information and ctex files for images representing the +X, -X, +Z, and -Z view directions.</p>
46
47<p>For images arranged in a horizontal cross, a mipmap image for the cubemap can be created by executing the <a href="NW4C_CreateMipMap.html">mipmap creation plug-in</a>.</p>
48<p><img src="images/CubeMipMap1.gif" border="0"></p>
49
50<p><br><br></p>
51<hr><p>CONFIDENTIAL</p></body>
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