Changeset 13041 for OpenSceneGraph/trunk/src/osgShadow/StandardShadowMap.cpp

Timestamp:

03/21/12 18:36:20 (14 months ago)

Author:

robert

Message:

Ran script to remove trailing spaces and tabs

Files:

• OpenSceneGraph/trunk/src/osgShadow/StandardShadowMap.cpp (modified) (33 diffs)

OpenSceneGraph/trunk/src/osgShadow/StandardShadowMap.cpp

@@ -1 @@
-/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield 
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
  *
- * This library is open source and may be redistributed and/or modified under  
- * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
  * (at your option) any later version.  The full license is in LICENSE file
  * included with this distribution, and on the openscenegraph.org website.
- * 
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * OpenSceneGraph Public License for more details.
  *
@@ -34 +34 @@
 
 StandardShadowMap::StandardShadowMap():
-    BaseClass(),    
+    BaseClass(),
     _polygonOffsetFactor( 1.1f ),
     _polygonOffsetUnits( 4.0f ),
@@ -43 +43 @@
     _shadowTextureCoordIndex( 1 )
 
-{ 
+{
 #if FRAGMENT_SHADERS_ONLY
     _mainFragmentShader = new osg::Shader( osg::Shader::FRAGMENT,
@@ -70 +70 @@
 //      "  color.rgb = mix( gl_Fog.color.rgb, color.rgb, fog );                  \n"
         "  gl_FragColor = color;                                                 \n"
-        "} \n" );   
+        "} \n" );
 
     _shadowFragmentShader = new osg::Shader( osg::Shader::FRAGMENT,
@@ -82 +82 @@
         "    return shadow2DProj( shadowTexture, gl_TexCoord[1] ).r;            \n"
         "} \n" );
-    
-    
+
+
     _shadowVertexShader = NULL;
     _mainVertexShader = NULL;
@@ -112 +112 @@
 //      "  color.rgb = mix( gl_Fog.color.rgb, color.rgb, fog );                  \n"
         "  gl_FragColor = color;                                                 \n"
-        "} \n" );   
-    
-    
+        "} \n" );
+
+
     _shadowFragmentShader = new osg::Shader( osg::Shader::FRAGMENT,
         " // following expressions are auto modified - do not change them:      \n"
@@ -126 +126 @@
         "} \n" );
 
-    
-    
+
+
     _shadowVertexShader = new osg::Shader( osg::Shader::VERTEX,
         " // following expressions are auto modified - do not change them:      \n"
@@ -144 +144 @@
         "    gl_TexCoord[1].q = dot( ecPosition, gl_EyePlaneQ[1] );             \n"
         "} \n" );
-    
+
     _mainVertexShader = new osg::Shader( osg::Shader::VERTEX,
         " // following expressions are auto modified - do not change them:      \n"
@@ -237 +237 @@
         "    d = length(VP);                                                    \n"
         "                                                                       \n"
-        "    // Normalize the vector from surface to light position             \n" 
+        "    // Normalize the vector from surface to light position             \n"
         "    VP = normalize(VP);                                                \n"
         "                                                                       \n"
@@ -361 +361 @@
 }
 
-StandardShadowMap::~StandardShadowMap(void)                                        
-{                                                                                
-                                                                                
-}                                    
+StandardShadowMap::~StandardShadowMap(void)
+{
+
+}
 
 void StandardShadowMap::updateTextureCoordIndices( unsigned int fromTextureCoordIndex, unsigned int toTextureCoordIndex )
@@ -387 +387 @@
         char acFrom[ 32 ], acTo[32];
 
-        // its not elegant to mix stdio & stl strings 
+        // its not elegant to mix stdio & stl strings
         // but in this context I do an exception for cleaner code
 
@@ -413 +413 @@
 
     std::string::size_type fromLength = fromString.length();
-    std::string::size_type srceLength = srceString.length();   
+    std::string::size_type srceLength = srceString.length();
 
     for( std::string::size_type pos = 0; pos < srceLength; )
@@ -423 +423 @@
 
         destString.append( srceString, pos, end - pos );
-        
+
         if( end == srceLength )
             break;
@@ -436 +436 @@
 void StandardShadowMap::ViewData::cull()
 {
-    // step 1: 
-    // cull shadowed scene ie put into render bins and states into stage graphs 
+    // step 1:
+    // cull shadowed scene ie put into render bins and states into stage graphs
     cullShadowReceivingScene( );
 
     // step 2:
-    // find the light casting our shadows 
+    // find the light casting our shadows
     osg::Vec4 lightPos;
     osg::Vec3 lightDir;
@@ -455 +455 @@
 
     // step 4:
-    // cull scene casting shadow and generate render  
+    // cull scene casting shadow and generate render
     cullShadowCastingScene( );
 
     // step 5:
-    // setup texgen generating shadow map coords for the shadow receiving scene 
+    // setup texgen generating shadow map coords for the shadow receiving scene
     addShadowReceivingTexGen( );
 
@@ -488 +488 @@
         _texture = texture;
     }
-    
+
     _camera = new osg::Camera;
-    { // Setup shadow map camera 
+    { // Setup shadow map camera
         _camera->setName( "ShadowCamera" );
 #if 0  // Absolute reference frame INHERIT_VIEWPOINT works better than this
         _camera->setCullingMode
-                ( _camera->getCullingMode() & ~osg::CullSettings::SMALL_FEATURE_CULLING ); 
+                ( _camera->getCullingMode() & ~osg::CullSettings::SMALL_FEATURE_CULLING );
 #endif
         _camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF_INHERIT_VIEWPOINT);
@@ -504 +504 @@
         _camera->setClearColor( osg::Vec4(1.0f,1.0f,1.0f,1.0f) );
 #endif
-        _camera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);        
+        _camera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR);
         _camera->setViewport(0,0, st->_textureSize.x(), st->_textureSize.y() );
-        _camera->setRenderOrder(osg::Camera::PRE_RENDER);        
-        _camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);        
+        _camera->setRenderOrder(osg::Camera::PRE_RENDER);
+        _camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
         _camera->attach(osg::Camera::DEPTH_BUFFER, _texture.get());
     }
@@ -518 +518 @@
         image->allocateImage( 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE );
         *(osg::Vec4ub*)image->data() = osg::Vec4ub( 0xFF, 0xFF, 0xFF, 0xFF );
-        
+
         osg::Texture2D* fakeTex = new osg::Texture2D( image );
         fakeTex->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::REPEAT);
@@ -524 +524 @@
         fakeTex->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::NEAREST);
         fakeTex->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::NEAREST);
-        
+
         _stateset->setTextureAttribute(st->_baseTextureUnit,fakeTex,osg::StateAttribute::ON);
         _stateset->setTextureMode(st->_baseTextureUnit,GL_TEXTURE_2D,osg::StateAttribute::ON);
@@ -533 +533 @@
     }
 
-    { // Add shadow texture 
+    { // Add shadow texture
         _stateset->setTextureAttributeAndModes(st->_shadowTextureUnit,_texture.get(),osg::StateAttribute::ON);
         _stateset->setTextureMode(st->_shadowTextureUnit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
@@ -541 +541 @@
     }
 
-    {  // Setup shaders used in shadow casting        
+    {  // Setup shaders used in shadow casting
         osg::Program * program = new osg::Program();
         _stateset->setAttribute( program );
@@ -565 +565 @@
     { // Setup states used for shadow map generation
         osg::StateSet * stateset = _camera->getOrCreateStateSet();
-     
-        stateset->setAttribute( 
+
+        stateset->setAttribute(
             new osg::PolygonOffset( st->_polygonOffsetFactor, st->_polygonOffsetUnits ),
                 osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
@@ -574 +574 @@
 
         // agressive optimization
-        stateset->setRenderBinDetails( 0, "RenderBin", 
+        stateset->setRenderBinDetails( 0, "RenderBin",
                             osg::StateSet::OVERRIDE_RENDERBIN_DETAILS );
 
@@ -589 +589 @@
 
         // note soft (attribute only no mode override) setting. When this works ?
-        // 1. for objects prepared for backface culling 
+        // 1. for objects prepared for backface culling
         //    because they usually also set CullFace and CullMode on in their state
         //    For them we override CullFace but CullMode remains set by them
-        // 2. For one faced, trees, and similar objects which cannot use 
+        // 2. For one faced, trees, and similar objects which cannot use
         //    backface nor front face so they usually use CullMode off set here.
         //    In this case we will draw them in their entirety.
@@ -599 +599 @@
               osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
 
-        // make sure GL_CULL_FACE is off by default 
-        // we assume that if object has cull face attribute set to back 
+        // make sure GL_CULL_FACE is off by default
+        // we assume that if object has cull face attribute set to back
         // it will also set cull face mode ON so no need for override
         stateset->setMode( GL_CULL_FACE, osg::StateAttribute::OFF );
 
-        // optimization attributes 
+        // optimization attributes
         osg::Program* program = new osg::Program;
         stateset->setAttribute( program, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON );
@@ -649 +649 @@
     osgUtil::RenderStage * rs = _cv->getRenderStage();
 
-    osgUtil::PositionalStateContainer::AttrMatrixList& aml = 
+    osgUtil::PositionalStateContainer::AttrMatrixList& aml =
         rs->getPositionalStateContainer()->getAttrMatrixList();
 
@@ -678 +678 @@
         if( lightPos[3] == 0 )
             lightDir.set( -lightPos[0], -lightPos[1], -lightPos[2] );
-        else 
-            lightDir = light->getDirection();            
+        else
+            lightDir = light->getDirection();
 
         lightPos = lightPos * localToWorld;
@@ -691 +691 @@
 void StandardShadowMap::ViewData::aimShadowCastingCamera( const osg::Light *light,
                                                   const osg::Vec4 &lightPos,
-                                                  const osg::Vec3 &lightDir,                                           
+                                                  const osg::Vec3 &lightDir,
                                                   const osg::Vec3 &lightUp
                                         /* by default = osg::Vec3( 0, 1 0 )*/ )
 {
-#if 0 // less precise but faster 
+#if 0 // less precise but faster
     osg::BoundingSphere bs =_st->getShadowedScene()->getBound();
 #else
@@ -709 +709 @@
 }
 
-void StandardShadowMap::ViewData::aimShadowCastingCamera( 
+void StandardShadowMap::ViewData::aimShadowCastingCamera(
                                         const osg::BoundingSphere &bs,
                                         const osg::Light *light,
                                         const osg::Vec4 &lightPos,
-                                        const osg::Vec3 &lightDir,                                           
-                                        const osg::Vec3 &lightUpVector 
+                                        const osg::Vec3 &lightDir,
+                                        const osg::Vec3 &lightUpVector
                                         /* by default = osg::Vec3( 0, 1 0 )*/ )
 {
@@ -730 +730 @@
         position = bs.center() - lightDir * bs.radius() * 2;
     }
-        
+
     float centerDistance = (position-bs.center()).length();
     float znear = centerDistance-bs.radius();
     float zfar  = centerDistance+bs.radius();
     float zNearRatio = 0.001f;
-    if (znear<zfar*zNearRatio) 
+    if (znear<zfar*zNearRatio)
         znear = zfar*zNearRatio;
 
@@ -765 +765 @@
     _cv->pushStateSet( _stateset.get() );
 
-    _st->getShadowedScene()->osg::Group::traverse( *_cv );        
+    _st->getShadowedScene()->osg::Group::traverse( *_cv );
 
     _cv->popStateSet();
@@ -771 +771 @@
 
 void StandardShadowMap::ViewData::cullShadowCastingScene( )
-{    
+{
     // record the traversal mask on entry so we can reapply it later.
     unsigned int traversalMask = _cv->getTraversalMask();
 
-    _cv->setTraversalMask( traversalMask & 
+    _cv->setTraversalMask( traversalMask &
          _st->getShadowedScene()->getCastsShadowTraversalMask() );
 
@@ -786 +786 @@
 
 void StandardShadowMap::ViewData::addShadowReceivingTexGen( )
-{     
+{
      _texgen->setMode(osg::TexGen::EYE_LINEAR);