1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 5<meta http-equiv="Content-Style-Type" content="text/css"> 6<link rel="stylesheet" href="css/manpage.css" type="text/css"> 7<title>Scene Data</title> 8</head> 9<body> 10 11<h1>Scene Data</h1> 12 13<p>This chapter describes procedures and precautions for creating scene data using NintendoWare in Softimage.</p> 14<p> 15<a href="#camera">Camera</a><br> <a href="#light">Light</a><br> 16</p> 17 18<h2><a name="camera">Camera</a></h3> 19<p> 20<ul> 21<li>Camera Types 22 <p>Supported camera types are: Perspective, Telephoto, Wide Angle, and Orthographic. 23 </p></li> 24 25<li>Cameras that are not output 26 <p>A camera will not be output if its Visibility property <B>View Visibility</B> is OFF. 27 </p></li> 28 29<li>Aspect Ratio 30 <p>The aspect ratio is set by selecting <B>Primitive</B> > <B>Pict. Ratio</B> under Camera Properties, or <B>Projection Plane</B> > <B>Film Aperture (Fixed Aspect Ratio OFF)</B>.<br> 31 </p></li> 32<li>Angle of View 33 <p>Angle of view is set by selecting <B>Primitive</B> > <B>Field Of View</B> > <B>Angle</B> under Camera Properties or <B>Projection Plane</B> > <B>Film Aperture (Fix Aspect Ratio ON)</B>. Since vertical Field of View (Fovy) is output to the intermediate file, if <B>Primitive</B> > <B>Field Of View</B> is set to <B>Horizontal</B>, convert it to <B>Vertical Field of View</B> before exporting. The relationship between Horizontal Angle of View and Vertical Angle of View is determined by the Aspect Ratio.<BR> The relationship between the Vertical Field of View (Fovy) and the Horizontal Field of View (Fovx) is given by the following formula: 34 <pre>Fovy = 2 * atan( tan( Fovx * 0.5 ) / aspect )</pre> 35 <p></p></li> 36 37 38 39</ul> 40<p></p> 41 42<h2><a name="light">Lights</a></h3> 43<p> 44<ul> 45<li>Light Types 46 <p>Supported light types are: Infinite, Point, and Spot.<br> <B>Render</B> > <B>Edit</B> > <B>Ambience</B> converts light into ambient light. However, there can only be one ambient light. 47 </p></li> 48<li>Lights that are not output 49 <p>A light is not output if the Visibility property <B>View Visibility</B> is not animated and is OFF. 50 </p></li> 51<li>The Spotlight's <CODE>Visibility</CODE> property 52 <p>A spotlight is not output if either its own <CODE>Visibility</CODE> or the <CODE>Visibility</CODE> of <CODE>Spot_Root</CODE> is OFF.</p></li> 53<li>Light Contribution 54 <p>If the light property <B>Light Contribution</B> > <B>Specular</B> is ON, then the <CODE>color </CODE>value is output as specular color.<br/> If it is OFF, then black is output to the specular color. 55 <p>If the light property <B>Light Contribution</B> > <B>Diffuse</B> is ON, then the <CODE>color </CODE>value is output as diffuse color.<br/> If it is OFF, then black is output to the diffuse color. 56 </p></li> 57<li>Ambient color 58 <p>Black is always exported for the ambient color of Infinite, Point, and Spot light types.</p></li> 59 60<li>Specular Color 0, Specular Color 1 61 <p>The intermediate file can have two settings for specular color, but the same value is output for both from Softimage. 62 </p></li> 63<li>Exportable Attributes 64 <p>Attributes that can be output to intermediate files are collected below.</p> 65<ul> 66<li> The light kinematics <B>Translate </B>and <B>Rotate</B> (Global Coordinates)</li> 67<li> The light Visibility property <B>View Visibility</B> (except for Ambient Lights)</li> 68<li> The light Color, Cone Angle and Spread (Cone Angle and spread are for Spot Lights only)</li> 69<li> Ambient Light <B>Color</B></li> 70<li> <B>Intensity </B>is output as the alpha component of the light color. (Valid values range between 0.0 and 1.0. (Valid values are 0.0 through 1.0 and correspond to alpha values ranging from 0 to 255 in the intermediate file.)<br/>However, 1 is always exported for the alpha value of the ambient color of Ambient Lights and Lights. </li> 71<li> The kinematics <strong>Translate</strong> of the spot light <CODE>Interest</CODE> node (Global Coordinates).</li> 72</ul> 73 <p></p></li> 74 75<p></p> 76<p><br></p> 77</ul><hr><p>CONFIDENTIAL</p></body> 78</html> 79