/bin-release/srcview/source/away3d/materials/FresnelPBMaterial.as.html

https://github.com/davidcoleman007/AS3MazeSolver · HTML · 173 lines · 144 code · 28 blank · 1 comment · 0 complexity · 0739a3d6fba3dfa433b605eec3057a39 MD5 · raw file 

    

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  6. <title>FresnelPBMaterial.as</title>
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  9. 

  10. <body><pre><span class="ActionScriptpackage">package</span> <span class="ActionScriptDefault_Text">away3d</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">materials</span>
    11. 

  11. <span class="ActionScriptBracket/Brace">{</span>
    12. 

  12.     <span class="ActionScriptReserved">import</span> <span class="ActionScriptDefault_Text">away3d</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">cameras</span><span class="ActionScriptOperator">.</span><span class="ActionScriptOperator">*</span>;
    13. 

  13.     <span class="ActionScriptReserved">import</span> <span class="ActionScriptDefault_Text">away3d</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">containers</span><span class="ActionScriptOperator">.</span><span class="ActionScriptOperator">*</span>;
    14. 

  14.     <span class="ActionScriptReserved">import</span> <span class="ActionScriptDefault_Text">away3d</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">core</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">base</span><span class="ActionScriptOperator">.</span><span class="ActionScriptOperator">*</span>;
    15. 

  15.     
    16. 

  16.     <span class="ActionScriptReserved">import</span> <span class="ActionScriptDefault_Text">flash</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">display</span><span class="ActionScriptOperator">.</span><span class="ActionScriptOperator">*</span>;
    17. 

  17.     
    18. 

  18.     <span class="ActionScriptASDoc">/**
    19. 

  19.      * BitmapData material which creates reflections based on a cube map.
    20. 

  20.      * The reflection strength changes based on the refraction of the material and its environment,
    21. 

  21.      * as well as the angle of view. This can be used to create water-like reflections.
    22. 

  22.      */</span>
    23. 

  23.     <span class="ActionScriptReserved">public</span> <span class="ActionScriptclass">class</span> <span class="ActionScriptDefault_Text">FresnelPBMaterial</span> <span class="ActionScriptReserved">extends</span> <span class="ActionScriptDefault_Text">SinglePassShaderMaterial</span>
    24. 

  24.     <span class="ActionScriptBracket/Brace">{</span>
    25. 

  25.         <span class="ActionScriptBracket/Brace">[</span><span class="ActionScriptMetadata">Embed</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"../pbks/FresnelShader.pbj"</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">mimeType</span><span class="ActionScriptOperator">=</span><span class="ActionScriptString">"application/octet-stream"</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptBracket/Brace">]</span>
    26. 

  26.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">Kernel</span> : <span class="ActionScriptDefault_Text">Class</span>;
    27. 

  27.         
    28. 

  28.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_envMapAlpha</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> 1;
    29. 

  29.         
    30. 

  30.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_outerRefraction</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> 1.0002926;
    31. 

  31.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_innerRefraction</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> 1.330;
    32. 

  32.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_fresnelMap</span> : <span class="ActionScriptDefault_Text">BitmapData</span>;
    33. 

  33.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_fresnelMapDirty</span> : <span class="ActionScriptDefault_Text">Boolean</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">true</span>;
    34. 

  34.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_exponent</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> 5;
    35. 

  35. 

  36.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">_refractionStrength</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> 0;
    37. 

  37.         
    38. 

  38.         <span class="ActionScriptASDoc">/**
    39. 

  39.          * Creates a new FresnelPBMaterial object.
    40. 

  40.          * 
    41. 

  41.          * @param bitmap The texture to be used for the diffuse shading
    42. 

  42.          * @param normalMap An object-space normal map
    43. 

  43.          * @param envMap The spherical environment map used for reflections
    44. 

  44.          * @param targetModel The target mesh for which this shader is applied
    45. 

  45.          * @param init An initialisation object
    46. 

  46.          */</span>                                                     
    47. 

  47.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptDefault_Text">FresnelPBMaterial</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">bitmap</span>:<span class="ActionScriptDefault_Text">BitmapData</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">normalMap</span>:<span class="ActionScriptDefault_Text">BitmapData</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">envMap</span> : <span class="ActionScriptDefault_Text">BitmapData</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">targetModel</span>:<span class="ActionScriptDefault_Text">Mesh</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">init</span>:<span class="ActionScriptDefault_Text">Object</span><span class="ActionScriptOperator">=</span><span class="ActionScriptReserved">null</span><span class="ActionScriptBracket/Brace">)</span>
    48. 

  48.         <span class="ActionScriptBracket/Brace">{</span>
    49. 

  49.             <span class="ActionScriptReserved">super</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">bitmap</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">normalMap</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptReserved">new</span> <span class="ActionScriptDefault_Text">Shader</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptReserved">new</span> <span class="ActionScriptDefault_Text">Kernel</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">targetModel</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">init</span><span class="ActionScriptBracket/Brace">)</span>;
    50. 

  50.             <span class="ActionScriptDefault_Text">_useWorldCoords</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">true</span>;         
    51. 

  51.             <span class="ActionScriptDefault_Text">_envMapAlpha</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">ini</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">getNumber</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"envMapAlpha"</span><span class="ActionScriptOperator">,</span> 1<span class="ActionScriptBracket/Brace">)</span>;
    52. 

  52.             <span class="ActionScriptDefault_Text">_outerRefraction</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">ini</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">getNumber</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"outerRefraction"</span><span class="ActionScriptOperator">,</span> 1.0008<span class="ActionScriptBracket/Brace">)</span>;
    53. 

  53.             <span class="ActionScriptDefault_Text">_innerRefraction</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">ini</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">getNumber</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"innerRefraction"</span><span class="ActionScriptOperator">,</span> 1.330<span class="ActionScriptBracket/Brace">)</span>;
    54. 

  54.             <span class="ActionScriptDefault_Text">_refractionStrength</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">ini</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">getNumber</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"refractionStrength"</span><span class="ActionScriptOperator">,</span> 1<span class="ActionScriptBracket/Brace">)</span>;
    55. 

  55.             <span class="ActionScriptDefault_Text">_exponent</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">ini</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">getNumber</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptString">"exponent"</span><span class="ActionScriptOperator">,</span> 5<span class="ActionScriptBracket/Brace">)</span>;
    56. 

  56. 

  57.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">alpha</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">_envMapAlpha</span> <span class="ActionScriptBracket/Brace">]</span>;
    58. 

  58.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">envMap</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">input</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">envMap</span>;
    59. 

  59.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">envMapDim</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">envMap</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">width</span><span class="ActionScriptOperator">*</span>.5 <span class="ActionScriptBracket/Brace">]</span>;
    60. 

  60.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">refractionStrength</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">_refractionStrength</span> <span class="ActionScriptBracket/Brace">]</span>;
    61. 

  61.         <span class="ActionScriptBracket/Brace">}</span>
    62. 

  62.         
    63. 

  63.         <span class="ActionScriptASDoc">/**
    64. 

  64.          * The maximum amount of refraction to be performed on the diffuse texture, used to simulate water
    65. 

  65.          */</span>
    66. 

  66.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">get</span> <span class="ActionScriptDefault_Text">refractionStrength</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptDefault_Text">Number</span>
    67. 

  67.         <span class="ActionScriptBracket/Brace">{</span>
    68. 

  68.             <span class="ActionScriptReserved">return</span> <span class="ActionScriptDefault_Text">_refractionStrength</span>;
    69. 

  69.         <span class="ActionScriptBracket/Brace">}</span>
    70. 

  70.         
    71. 

  71.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">set</span> <span class="ActionScriptDefault_Text">refractionStrength</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">value</span> : <span class="ActionScriptDefault_Text">Number</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    72. 

  72.         <span class="ActionScriptBracket/Brace">{</span>
    73. 

  73.             <span class="ActionScriptDefault_Text">_refractionStrength</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">value</span>;
    74. 

  74.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">refractionStrength</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">_refractionStrength</span> <span class="ActionScriptBracket/Brace">]</span>;
    75. 

  75.         <span class="ActionScriptBracket/Brace">}</span>
    76. 

  76. 

  77.         <span class="ActionScriptASDoc">/**
    78. 

  78.          * The refractive index of the outer medium (where the view ray starts)
    79. 

  79.          */</span>
    80. 

  80.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">get</span> <span class="ActionScriptDefault_Text">outerRefraction</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptDefault_Text">Number</span>
    81. 

  81.         <span class="ActionScriptBracket/Brace">{</span>
    82. 

  82.             <span class="ActionScriptReserved">return</span> <span class="ActionScriptDefault_Text">_outerRefraction</span>;
    83. 

  83.         <span class="ActionScriptBracket/Brace">}</span>
    84. 

  84. 

  85.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">set</span> <span class="ActionScriptDefault_Text">outerRefraction</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">value</span> : <span class="ActionScriptDefault_Text">Number</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    86. 

  86.         <span class="ActionScriptBracket/Brace">{</span>
    87. 

  87.             <span class="ActionScriptDefault_Text">_outerRefraction</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">value</span>;
    88. 

  88.             <span class="ActionScriptDefault_Text">_fresnelMapDirty</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">true</span>;
    89. 

  89.         <span class="ActionScriptBracket/Brace">}</span>
    90. 

  90. 

  91.         <span class="ActionScriptASDoc">/**
    92. 

  92.          * The refractive index of the inner medium (ie the material itself)
    93. 

  93.          */</span>
    94. 

  94.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">get</span> <span class="ActionScriptDefault_Text">innerRefraction</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptDefault_Text">Number</span>
    95. 

  95.         <span class="ActionScriptBracket/Brace">{</span>
    96. 

  96.             <span class="ActionScriptReserved">return</span> <span class="ActionScriptDefault_Text">_innerRefraction</span>;
    97. 

  97.         <span class="ActionScriptBracket/Brace">}</span>
    98. 

  98. 

  99.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">set</span> <span class="ActionScriptDefault_Text">innerRefraction</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">value</span> : <span class="ActionScriptDefault_Text">Number</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    100. 

  100.         <span class="ActionScriptBracket/Brace">{</span>
    101. 

  101.             <span class="ActionScriptDefault_Text">_innerRefraction</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">value</span>;
    102. 

  102.             <span class="ActionScriptDefault_Text">_fresnelMapDirty</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">true</span>;
    103. 

  103.         <span class="ActionScriptBracket/Brace">}</span>
    104. 

  104. 

  105.         <span class="ActionScriptASDoc">/**
    106. 

  106.          * The exponent of the calculated fresnel term. Lower values will only show reflections at steeper view angles.
    107. 

  107.          */</span>
    108. 

  108.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">get</span> <span class="ActionScriptDefault_Text">exponent</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptDefault_Text">Number</span>
    109. 

  109.         <span class="ActionScriptBracket/Brace">{</span>
    110. 

  110.             <span class="ActionScriptReserved">return</span> <span class="ActionScriptDefault_Text">_exponent</span>;
    111. 

  111.         <span class="ActionScriptBracket/Brace">}</span>
    112. 

  112. 

  113.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">set</span> <span class="ActionScriptDefault_Text">exponent</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">value</span> : <span class="ActionScriptDefault_Text">Number</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    114. 

  114.         <span class="ActionScriptBracket/Brace">{</span>
    115. 

  115.             <span class="ActionScriptDefault_Text">_exponent</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">value</span>;
    116. 

  116.             <span class="ActionScriptDefault_Text">_fresnelMapDirty</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">true</span>;
    117. 

  117.         <span class="ActionScriptBracket/Brace">}</span>
    118. 

  118. 

  119.         <span class="ActionScriptReserved">private</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptDefault_Text">initFresnelMap</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    120. 

  120.         <span class="ActionScriptBracket/Brace">{</span>
    121. 

  121.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">i</span> : <span class="ActionScriptDefault_Text">int</span> <span class="ActionScriptOperator">=</span> 256;
    122. 

  122.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">fres</span> : <span class="ActionScriptDefault_Text">Number</span>;
    123. 

  123.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">vec</span> : <span class="ActionScriptDefault_Text">Vector</span><span class="ActionScriptBracket/Brace">.&lt;</span><span class="ActionScriptDefault_Text">uint</span><span class="ActionScriptBracket/Brace">&gt;</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">new</span> <span class="ActionScriptDefault_Text">Vector</span><span class="ActionScriptBracket/Brace">.&lt;</span><span class="ActionScriptDefault_Text">uint</span><span class="ActionScriptBracket/Brace">&gt;</span><span class="ActionScriptBracket/Brace">(</span>256<span class="ActionScriptBracket/Brace">)</span>;
    124. 

  124.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">dot</span> : <span class="ActionScriptDefault_Text">Number</span>;
    125. 

  125. 

  126.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">r0</span> : <span class="ActionScriptDefault_Text">Number</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_outerRefraction</span><span class="ActionScriptOperator">-</span><span class="ActionScriptDefault_Text">_innerRefraction</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptOperator">*</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_outerRefraction</span><span class="ActionScriptOperator">-</span><span class="ActionScriptDefault_Text">_innerRefraction</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptOperator">/</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_outerRefraction</span><span class="ActionScriptOperator">+</span><span class="ActionScriptDefault_Text">_innerRefraction</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptOperator">*</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_outerRefraction</span><span class="ActionScriptOperator">+</span><span class="ActionScriptDefault_Text">_innerRefraction</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptBracket/Brace">)</span>;
    127. 

  127. 

  128.             <span class="ActionScriptReserved">if</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptOperator">!</span><span class="ActionScriptDefault_Text">_fresnelMap</span><span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptDefault_Text">_fresnelMap</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">new</span> <span class="ActionScriptDefault_Text">BitmapData</span><span class="ActionScriptBracket/Brace">(</span>256<span class="ActionScriptOperator">,</span> 1<span class="ActionScriptOperator">,</span> <span class="ActionScriptReserved">false</span><span class="ActionScriptOperator">,</span> 1<span class="ActionScriptBracket/Brace">)</span>;
    129. 

  129. 

  130.             <span class="ActionScriptReserved">while</span> <span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">i</span><span class="ActionScriptOperator">--</span><span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptBracket/Brace">{</span>
    131. 

  131.                 <span class="ActionScriptComment">// view vector is inverted in pixel shader (and so is dot product), hence no 1-i/256 as is usual
    132. 

  132. </span>                <span class="ActionScriptDefault_Text">dot</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">i</span><span class="ActionScriptOperator">/</span>256;
    133. 

  133.                 <span class="ActionScriptDefault_Text">fres</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">r0</span><span class="ActionScriptOperator">+</span><span class="ActionScriptBracket/Brace">(</span>1<span class="ActionScriptOperator">-</span><span class="ActionScriptDefault_Text">r0</span><span class="ActionScriptBracket/Brace">)</span><span class="ActionScriptOperator">*</span><span class="ActionScriptDefault_Text">Math</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">pow</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">dot</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">_exponent</span><span class="ActionScriptBracket/Brace">)</span>;
    134. 

  134. 

  135.                 <span class="ActionScriptReserved">if</span> <span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">fres</span> <span class="ActionScriptOperator">&gt;</span> 1.0<span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptDefault_Text">fres</span> <span class="ActionScriptOperator">=</span> 1.0;
    136. 

  136.                 <span class="ActionScriptReserved">else</span> <span class="ActionScriptReserved">if</span> <span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">fres</span> <span class="ActionScriptOperator">&lt;</span> 0.0<span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptDefault_Text">fres</span> <span class="ActionScriptOperator">=</span> 0.0;
    137. 

  137. 

  138.                 <span class="ActionScriptDefault_Text">vec</span><span class="ActionScriptBracket/Brace">[</span><span class="ActionScriptDefault_Text">i</span><span class="ActionScriptBracket/Brace">]</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">int</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">fres</span><span class="ActionScriptOperator">*</span>0xff<span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptOperator">&lt;&lt;</span> 16;
    139. 

  139.             <span class="ActionScriptBracket/Brace">}</span>
    140. 

  140. 

  141.             <span class="ActionScriptDefault_Text">_fresnelMap</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">setVector</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_fresnelMap</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">rect</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">vec</span><span class="ActionScriptBracket/Brace">)</span>;
    142. 

  142. 

  143.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">fresnelMap</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">input</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">_fresnelMap</span>;
    144. 

  144.         <span class="ActionScriptBracket/Brace">}</span>
    145. 

  145. 

  146.         <span class="ActionScriptASDoc">/**
    147. 

  147.          * The opacity of the environment map, ie: how reflective the surface is. 1 is a perfect mirror.
    148. 

  148.          */</span>
    149. 

  149.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">get</span> <span class="ActionScriptDefault_Text">envMapAlpha</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptDefault_Text">Number</span>
    150. 

  150.         <span class="ActionScriptBracket/Brace">{</span>
    151. 

  151.             <span class="ActionScriptReserved">return</span> <span class="ActionScriptDefault_Text">_envMapAlpha</span>;
    152. 

  152.         <span class="ActionScriptBracket/Brace">}</span>
    153. 

  153.         
    154. 

  154.         <span class="ActionScriptReserved">public</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptReserved">set</span> <span class="ActionScriptDefault_Text">envMapAlpha</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">value</span> : <span class="ActionScriptDefault_Text">Number</span><span class="ActionScriptBracket/Brace">)</span> : <span class="ActionScriptReserved">void</span>
    155. 

  155.         <span class="ActionScriptBracket/Brace">{</span>
    156. 

  156.             <span class="ActionScriptDefault_Text">_envMapAlpha</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">value</span>; 
    157. 

  157.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">alpha</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptBracket/Brace">]</span>;
    158. 

  158.         <span class="ActionScriptBracket/Brace">}</span>
    159. 

  159.         
    160. 

  160.         <span class="ActionScriptReserved">override</span> <span class="ActionScriptReserved">protected</span> <span class="ActionScriptfunction">function</span> <span class="ActionScriptDefault_Text">updatePixelShader</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">source</span>:<span class="ActionScriptDefault_Text">Object3D</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">view</span>:<span class="ActionScriptDefault_Text">View3D</span><span class="ActionScriptBracket/Brace">)</span>:<span class="ActionScriptReserved">void</span>
    161. 

  161.         <span class="ActionScriptBracket/Brace">{</span>
    162. 

  162.             <span class="ActionScriptReserved">if</span> <span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">_fresnelMapDirty</span><span class="ActionScriptBracket/Brace">)</span> <span class="ActionScriptBracket/Brace">{</span>
    163. 

  163.                 <span class="ActionScriptDefault_Text">initFresnelMap</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptBracket/Brace">)</span>;
    164. 

  164.                 <span class="ActionScriptDefault_Text">_fresnelMapDirty</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptReserved">false</span>;
    165. 

  165.             <span class="ActionScriptBracket/Brace">}</span>
    166. 

  166. 

  167.             <span class="ActionScriptvar">var</span> <span class="ActionScriptDefault_Text">camera</span> : <span class="ActionScriptDefault_Text">Camera3D</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptDefault_Text">view</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">camera</span>;
    168. 

  168.             <span class="ActionScriptDefault_Text">_pointLightShader</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">data</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">viewPos</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">value</span> <span class="ActionScriptOperator">=</span> <span class="ActionScriptBracket/Brace">[</span> <span class="ActionScriptDefault_Text">camera</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">x</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">camera</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">y</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">camera</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">z</span> <span class="ActionScriptBracket/Brace">]</span>;
    169. 

  169.             <span class="ActionScriptReserved">super</span><span class="ActionScriptOperator">.</span><span class="ActionScriptDefault_Text">updatePixelShader</span><span class="ActionScriptBracket/Brace">(</span><span class="ActionScriptDefault_Text">source</span><span class="ActionScriptOperator">,</span> <span class="ActionScriptDefault_Text">view</span><span class="ActionScriptBracket/Brace">)</span>;
    170. 

  170.         <span class="ActionScriptBracket/Brace">}</span>
    171. 

  171.     <span class="ActionScriptBracket/Brace">}</span>
    172. 

  172. <span class="ActionScriptBracket/Brace">}</span></pre></body>
    173. 

  173. </html>
    174.