From 52c2bc3ff5186601f4957d06fb4879136868839e Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 2 Sep 2011 10:16:16 +0000
Subject: [PATCH] Added s/getTextureSize() method for setting the shadow map
 texture size.

---
 include/osgShadow/ViewDependentShadowMap |  7 +++++++
 src/osgShadow/ViewDependentShadowMap.cpp | 10 ++++++----
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/include/osgShadow/ViewDependentShadowMap b/include/osgShadow/ViewDependentShadowMap
index 8746e28dc..bebb5fa0f 100644
--- a/include/osgShadow/ViewDependentShadowMap
+++ b/include/osgShadow/ViewDependentShadowMap
@@ -159,6 +159,12 @@ class OSGSHADOW_EXPORT ViewDependentShadowMap : public ShadowTechnique
         /** Get the texture unit that the first shadow map will be placed on.*/
         unsigned int getBaseShadowTextureUnit() const { return _baseShadowTextureUnit; }
 
+        /** Set the size of the shadow map textures.*/
+        void setTextureSize(const osg::Vec2s& textureSize) { _textureSize = textureSize; }
+        
+        /** Get the size of the shadow map textures.*/
+        const osg::Vec2s& getTextureSize() const { return _textureSize; }
+
         enum ShadowMapProjectionHint
         {
             ORTHOGRAPHIC_SHADOW_MAP,
@@ -203,6 +209,7 @@ protected:
         ViewDependentDataMap                    _viewDependentDataMap;
 
         unsigned int                            _baseShadowTextureUnit;
+        osg::Vec2s                              _textureSize;
 
         osg::ref_ptr<osg::StateSet>             _shadowRecievingPlaceholderStateSet;
 
diff --git a/src/osgShadow/ViewDependentShadowMap.cpp b/src/osgShadow/ViewDependentShadowMap.cpp
index ff19f65ad..4e65a981d 100644
--- a/src/osgShadow/ViewDependentShadowMap.cpp
+++ b/src/osgShadow/ViewDependentShadowMap.cpp
@@ -293,9 +293,9 @@ ViewDependentShadowMap::ShadowData::ShadowData(ViewDependentShadowMap::ViewDepen
     // set up the texture
     _texture = new osg::Texture2D;
 
-    unsigned int textureSize = debug ? 512 : 2048;
+    osg::Vec2s textureSize = debug ? osg::Vec2s(512,512) : vdd->getViewDependentShadowMap()->getTextureSize();    
+    _texture->setTextureSize(textureSize.x(), textureSize.y());
     
-    _texture->setTextureSize(textureSize, textureSize);
     if (debug)
     {
         _texture->setInternalFormat(GL_RGB);
@@ -327,7 +327,7 @@ ViewDependentShadowMap::ShadowData::ShadowData(ViewDependentShadowMap::ViewDepen
     _camera->setComputeNearFarMode(osg::Camera::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES);
 
     // set viewport
-    _camera->setViewport(0,0,textureSize,textureSize);
+    _camera->setViewport(0,0,textureSize.x(),textureSize.y());
 
 
     if (debug)
@@ -522,7 +522,8 @@ void ViewDependentShadowMap::ViewDependentData::releaseGLObjects(osg::State* sta
 //
 ViewDependentShadowMap::ViewDependentShadowMap():
     ShadowTechnique(),
-    _baseShadowTextureUnit(1),    
+    _baseShadowTextureUnit(1),
+    _textureSize(2048,2048),
     _shadowMapProjectionHint(PERSPECTIVE_SHADOW_MAP),
     _minimumShadowMapNearFarRatio(0.01),
     _debugDraw(false)
@@ -533,6 +534,7 @@ ViewDependentShadowMap::ViewDependentShadowMap():
 ViewDependentShadowMap::ViewDependentShadowMap(const ViewDependentShadowMap& vdsm, const osg::CopyOp& copyop):
     ShadowTechnique(vdsm,copyop),
     _baseShadowTextureUnit(vdsm._baseShadowTextureUnit),
+    _textureSize(vdsm._textureSize),
     _shadowMapProjectionHint(vdsm._shadowMapProjectionHint),
     _minimumShadowMapNearFarRatio(vdsm._minimumShadowMapNearFarRatio),
     _debugDraw(vdsm._debugDraw)