Changeset 331

Timestamp:

Mar 11, 2012, 9:45:19 AM (13 years ago)

Author:

Torben Dannhauer

Message:

Initial intensityMap support added

Location:

experimental/distortionNG

Files:

• distortionNG.cpp (modified) (1 diff)
• extViewer.cpp (modified) (4 diffs)
• extViewer.h (modified) (1 diff)
• intensitymap.png (added)
• main.cpp (modified) (1 diff)

experimental/distortionNG/distortionNG.cpp

@@ -124 +124 @@
         _highlighter->dirtyBound(); 
 }
+
+/*
+        Grundsätzliche Gedanken Schritte:
+ Die Verzerrung kann auf zwei Arten realisiert werden
+        - Verzerrung der Textur-Koordinaten aus der RTT-Szene
+    - Verzerrung des Meshes im Verzerrungs-Rendern
+ Die IntensityMap muss über das fertige verzerrte Bild gelegt werden.
+
+
+
+*/

experimental/distortionNG/extViewer.cpp

@@ -30 +30 @@
 {
 
+}
+
+static osg::Geometry* createMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, unsigned int columns, unsigned int rows, osg::Image* intensityMap, const osg::Matrix& projectorMatrix)
+{
+        // Create Quad to render on
+        osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
+
+        geom->setUseDisplayList( false );
+
+        osg::Vec3 xAxis(widthVector);
+    float width = widthVector.length();
+    xAxis /= width;
+
+    osg::Vec3 yAxis(heightVector);
+    float height = heightVector.length();
+    yAxis /= height;
+
+        osg::Vec3 dx = xAxis*(width/((float)(columns-1)));
+    osg::Vec3 dy = yAxis*(height/((float)(rows-1)));
+
+
+        // Create vertices and coordinates
+        osg::Vec3Array* vertices = new osg::Vec3Array;
+    osg::Vec2Array* texcoords0 = new osg::Vec2Array;
+    osg::Vec2Array* texcoords1 = intensityMap==0 ? new osg::Vec2Array : 0;
+    osg::Vec4Array* colors = new osg::Vec4Array;
+
+        geom->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED);
+
+        for ( unsigned int row=0; row<rows; row++ )
+        {
+                for ( unsigned int col=0; col<columns; col++ )
+                {
+                        // Create coordinates of the mesh node (geometry).
+                        vertices->push_back( origin+dy*row+dx*col );
+
+                        // Create tex coordinates
+                        osg::Vec2 texcoord = osg::Vec2((float)col/(float)(columns-1), (float)row/(float)(rows-1));
+
+                        // Set Coordinates for RTT-Texture (scene rendering)
+                        texcoords0->push_back( texcoord );
+
+                        // Set Color of the mesh node
+                        if (intensityMap)
+                        {
+                                colors->push_back(intensityMap->getColor(texcoord));
+                        }
+                        else
+                        {
+                                colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
+                        }
+
+                        // Set coordinates for second texcoords array (if applyIntensityMapAsColours==true)
+                        if (texcoords1) texcoords1->push_back( texcoord );
+                }
+        }
+
+        // Pass the created vertex array to the points geometry object.
+        geom->setUseVertexBufferObjects( true );
+        geom->setVertexArray(vertices);
+
+        geom->setColorArray(colors);
+    geom->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
+
+    geom->setTexCoordArray(0,texcoords0);
+    if (texcoords1) geom->setTexCoordArray(1,texcoords1);
+
+ //   osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES);
+ //   geometry->addPrimitiveSet(elements);
+
+        for ( unsigned int row=0; row<rows-1; row++ )   // each strip consists of two affected vertex rows, so we need only row-1 strips.
+        {
+                osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(GL_QUAD_STRIP, columns*2);   // columns*2 = number of involved vertices for this strip.
+                for ( unsigned int col=0; col<columns; col++ )
+                {
+                        (*de)[col*2 + 0] = row*columns + col;
+                        (*de)[col*2 + 1] = (row+1)*columns + col;
+                }
+                geom->addPrimitiveSet( de.get() );
+        }
+
+        return geom.release();
 }
 
@@ -66 +148 @@
     traits->sharedContext = 0;
 
-        bool applyIntensityMapAsColours = true;
+        bool applyIntensityMapAsColours = false;
 
         osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get());
@@ -132 +214 @@
     {
         osg::Geode* geode = new osg::Geode();
-                //geode->addDrawable(createParoramicSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 1, 0.45, 0, projectorMatrix));
-                osg::Geometry* distortionMesh = createMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 20, 20, projectorMatrix);
+                //geode->addDrawable(createParoramicSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 1, 0.45, intensityMap, projectorMatrix));
+                osg::Geometry* distortionMesh = createMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 20, 20, intensityMap, projectorMatrix);
                 geode->addDrawable(distortionMesh);
 
-        // new we need to add the texture to the mesh, we do so by creating a
+        // new we need to add the scene texture to the mesh, we do so by creating a
         // StateSet to contain the Texture StateAttribute.
         osg::StateSet* stateset = geode->getOrCreateStateSet();
@@ -189 +271 @@
     }
 }
-
-osg::Geometry* extViewer::createMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, unsigned int columns, unsigned int rows, const osg::Matrix& projectorMatrix)
-{
-        // Create Quad to render on
-        osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
-
-        geom->setUseDisplayList( false );
-
-        osg::Vec3 xAxis(widthVector);
-    float width = widthVector.length();
-    xAxis /= width;
-
-    osg::Vec3 yAxis(heightVector);
-    float height = heightVector.length();
-    yAxis /= height;
-
-        osg::Vec3 dx = xAxis*(width/((float)(columns-1)));
-    osg::Vec3 dy = yAxis*(height/((float)(rows-1)));
-
-
-        // Create vertices and coordinates
-        osg::Vec3Array* vertices = new osg::Vec3Array;
-    osg::Vec2Array* texcoords0 = new osg::Vec2Array;
-    //osg::Vec2Array* texcoords1 = intensityMap==0 ? new osg::Vec2Array : 0;
-    osg::Vec4Array* colors = new osg::Vec4Array;
-
-        geom->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED);
-
-        for ( unsigned int row=0; row<rows; row++ )
-        {
-                for ( unsigned int col=0; col<columns; col++ )
-                {
-                        vertices->push_back( origin+dy*row+dx*col );    // geometry
-                        osg::Vec2 texcoord = osg::Vec2((float)col/(float)(columns-1), (float)row/(float)(rows-1));
-                        texcoords0->push_back( texcoord );
-
-//      if (intensityMap)
-//    {
-//        colors->push_back(intensityMap->getColor(texcoord1));
-//    }
-//    else
-//    {
-        colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
-//        if (texcoords1) texcoords1->push_back( texcoord1 );
-//    }
-
-                }
-        }
-
-        // Pass the created vertex array to the points geometry object.
-        geom->setUseVertexBufferObjects( true );
-        geom->setVertexArray(vertices);
-
-        geom->setColorArray(colors);
-    geom->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
-
-    geom->setTexCoordArray(0,texcoords0);
-    //if (texcoords1) geometry->setTexCoordArray(1,texcoords1);
-
- //   osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES);
- //   geometry->addPrimitiveSet(elements);
-
-        for ( unsigned int row=0; row<rows-1; row++ )   // each strip consists of two affected vertex rows, so we need only row-1 strips.
-        {
-                osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(GL_QUAD_STRIP, columns*2);   // columns*2 = number of involved vertices for this strip.
-                for ( unsigned int col=0; col<columns; col++ )
-                {
-                        (*de)[col*2 + 0] = row*columns + col;
-                        (*de)[col*2 + 1] = (row+1)*columns + col;
-                }
-                geom->addPrimitiveSet( de.get() );
-        }
-
-        return geom.release();
-}

experimental/distortionNG/extViewer.h

@@ -15 +15 @@
                 /** Convenience method for projection on curved screens using a slave camera rendering scene and a second camera doing distortion correction to present on a nonplaner display.*/
         void setUpViewForManualDistortion(unsigned int screenNum=0, osg::Image* intensityMap=0, const osg::Matrixd& projectorMatrix = osg::Matrixd());
-
-                static osg::Geometry* createMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, unsigned int columns, unsigned int rows, const osg::Matrix& projectorMatrix);
 };

experimental/distortionNG/main.cpp

@@ -41 +41 @@
     // construct the viewer.
     extViewer viewer(arguments);
-        viewer.setUpViewForManualDistortion();
-        //viewer.setUpViewFor3DSphericalDisplay();
 
-    // set up the camera manipulators.
+        osg::Image* intMap = osgDB::readImageFile("intensitymap.png");
+        if (!intMap)
+        {
+                osg::notify(osg::WARN) << "Couldn't find intensity map, quiting." << std::endl;
+                return -1;
+        } 
+
+        viewer.setUpViewForManualDistortion(0, intMap);
+        //viewer.setUpViewForPanoramicSphericalDisplay(1, 0, 0, intMap);
+    
+        // set up the camera manipulators.
     {
         osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;