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Viewing changes to data/shaders/lights/DirSpotLight.glsl

  • Committer: Bazaar Package Importer
  • Author(s): Steve M. Robbins
  • Date: 2008-06-28 02:38:17 UTC
  • mfrom: (1.2.5 upstream)
  • Revision ID: james.westby@ubuntu.com-20080628023817-lgrh0u677j1gcqgf
Tags: 2.5.0-2
http://bugs.debian.org/488001
* debian/control: Change suggests from libopenal0 to libopenal0a.
  Closes: #488001.  Change ${Source-Version} to ${binary:Version}.
  Update to standards version 3.8.0.

* debian/rules: Do not ignore errors in clean rule.

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data/shaders/lights/DirSpotLight.glsl
 
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float DirSpotLight(in int i, 
 
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                             in vec3 eye, 
 
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                             in vec3 ecPosition3,
 
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                             in vec3 normal,
 
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                             inout vec4 ambient,
 
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                             inout vec4 diffuse,
 
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                             inout vec4 specular)
 
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{
 
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  float nDotVP;
 
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  float nDotHV;
 
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  float pf;
 
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  vec3 dir = -normalize(vec3(gl_LightSource[i].spotDirection));
 
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  vec3 hv = normalize(eye + dir);
 
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  nDotVP = max(0.0, dot(normal, dir));
 
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  nDotHV = max(0.0, dot(normal, hv));
 
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  float shininess = gl_FrontMaterial.shininess;
 
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  if (nDotVP == 0.0)
 
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    pf = 0.0;
 
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  else
 
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    pf = pow(nDotHV, shininess);
 
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  ambient += gl_LightSource[i].ambient;
 
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  diffuse += gl_LightSource[i].diffuse * nDotVP;
 
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  specular += gl_LightSource[i].specular * pf;
 
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  return length(vec3(gl_LightSource[i].position) - ecPosition3);
 
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}