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17    <h1>MaterialCarpaint</h1>
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19    <p>MaterialCarpaint is an expression of paint on a car.</p>
20    <p>This expression is made using distribution lookup tables.</p>
21    <p>This section describes material settings for MaterialCarpaint.</p>
22    <img src="assets/chess02.png" alt="carpaint_chess Image"/>
23    <h2>Material Settings</h2>
24    <p>Click on carpaint_mat displayed on the CreativeStudio Contents panel to open the material Properties panel.</p>
25    <p>All descriptions here are based on the material Properties panel in <em>Details</em> mode.</p>
26    <h3>General</h3>
27    <p>Check the <B>General</B> tab on the material <B>Properties</B> panel.</p>
28    <p><B>Enable fragment lighting</B> is set for lighting.</p>
29    <p>This indicates settings that use the MaterialCarpaint lookup table are carried out using fragment lighting.</p>
30    <img src="assets/carpaint_chess02.png" alt="carpaint_chess Image 02"/>
31    <p class="new_hint"><B>Note:</B> Rendering settings must be changed to match the light being used.</p>
32    <h3>Color Settings</h3>
33    <p>Check the <B>Color</B> tab on the material <B>Properties</B> panel.</p>
34    <p>Colors have been set for Specular 0 and 1.</p>
35    <p>MaterialCarpaint expresses different relections using the lookup table for the specular colors set for these parameters.</p>
36    <img src="assets/carpaint_chess03.png" alt="carpaint_chess Image 03"/>
37    <p>With MaterialCarpain, white color remains unchanged because diffuse is not used.</p>
38    <p>This white color is used for parts of the model where the color of Specular 0 and 1 are not reflected.</p>
39    <h3>Fragment Settings</h3>
40    <p>With fragment lighting, set layer config and a lookup table.</p>
41    <p>MaterialCarpain uses Layer Config 2.</p>
42    <p class="new_hint"><B>Note:</B> The layer configuration is a combination of reference tables that can be used for fragment lighting calculations. For details on layer configurations, click <a href="../../../../user_guide/material/layer_configuration/index.html">here</a>.</p>
43    <img src="assets/carpaint_chess04.png" alt="carpaint_chess Image 04"/>
44    <h4>Lookup tables</h4>
45    <p>The following settings are made in the lookup table for MaterialCarpaint.</p>
46    <h5>Lookup table set</h5>
47    <p>LookupTableSetContentCtr0 is selected.</p>
48    <p>Lookup tables that can be used are managed in the lookup table set.</p>
49    <p>Clicking on LookupTableSetContentCtr0 displayed in the <B>Contents</B> panel allows you to check the lookup tables being managed on the lookup table set <B>Properties</B> panel.</p>
50    <p>For details on lookup tables used with MaterialCarpaint, click <a href="#lookup_car">here</a>.</p>
51    <h5>Comp.</h5>
52    <p>With <B>MaterialCarpon</B>, lookup tables have been set for Distribution 0 and Distribution 1.</p>
53    <p class="hint">The lookup tables for Distribution 0 and Distribution 1 adjust the color (light) set for Specular 1 and 2 on the Color tab.</p>
54    <p>For details on lookup tables, click <a href="../../../../user_guide/material/lookup_tables/index.html">here</a>.</p>
55    <h5>Input angle</h5>
56    <p>With MaterialCarpaint, both Distribution 0 and Distribution 1 use input angle NH.</p>
57    <img src="assets/carpaint_chess07.png" alt="carpaint_chess Image 07"/>
58    <p class="new_hint"><B>Note:</B> The input angle NH represents light that is affected by the light and viewpoint.<br /> This is primarly used for specular expressions.<BR> For details on the types of input angle, click <a href="../../../../user_guide/material/lookup_tables/index.html#input_angle">here</a>.</p>
59    <p class="hint">The speculars set for Distribution 0 and Distribution 1 are added.</p>
60    <h5>Texture combiners</h5>
61    <p>The color of Combiner 0 is set for MaterialCarpaint.</p>
62    <img src="assets/carpaint_chess09.png" alt="carpaint_chess Image 09"/>
63    <p>This setting indicates that the secondary color will be used as-is.</p>
64    <p class="new_hint"><B>Note:</B> The output result of the vertex shader is used for Source 1 and Source 2. However, there is no effect on the model because the result is not used by the calculation formula.</p>
65    <a name="lookup_car" id="lookup_car"></a>
66    <h2>Checking lookup tables</h2>
67    <p>Check the CurveEditor panel for the lookup tables actually used with MaterialCarpaint.</p>
68    <p>Select LookupTableSetContentCtr0 located on the Creative Studio Contents panel.</p>
69    <p>While in the state described, select <B>Window</B> &gt; <B>Curve editor...</B> from the menu bar to open the CurveEditor panel.</p>
70    <ul>
71      <li>Horizontal axis: results in a change from 0 to 1 (from 90 degress to 0 degrees) using the angle created by input angle elements.</li>
72      <li>Vertical axis represents color (light) intensity.</li>
73    </ul>
74    <h3>carpaint_distribution0 settings</h3>
75    <p>This setting expresses Specular 0 (yellow) sharply in the region where the angle created by NH is small (1 on the horizontal axis).</p>
76    <a href="assets/carpaint_chess11.png" rel="ibox" title="Click image to enlarge"><img class="ui_thumb" src="assets/carpaint_chess11.png" alt="carpain_chess Image 11"/></a>
77    <h3>carpaint_distribution1 settings</h3>
78    <p>Compared to the carpaint_distribution0 setting, a more gradual curve is created from the region where the angle created by NH is large (near 0 on the horizontal axis).</p>
79    <a href="assets/carpaint_chess12.png" rel="ibox" title="Click image to enlarge"><img class="ui_thumb" src="assets/carpaint_chess12.png" alt="carpain_chess Image 12"/></a>
80    <p>This makes parts of the MaterialCarpaint model that use Specular 1 (red) appear more gradual.</p>
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