FGFS-4.1/OpenSceneGraph
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Added support for image streams

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This commit is contained in:
Robert Osfield 2009-03-24 23:17:05 +00:00
parent 3c4fc747ff
commit 31e7f32d3f
1 changed files with 11 additions and 2 deletions
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13
examples/osgstereoimage/osgstereoimage.cpp
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@ -22,6 +22,7 @@
#include <osgDB/WriteFile> #include <osgDB/WriteFile>
#include <osgUtil/Optimizer> #include <osgUtil/Optimizer>
#include <osg/ImageStream>
#include <osg/Geode> #include <osg/Geode>
#include <osg/Notify> #include <osg/Notify>
#include <osg/MatrixTransform> #include <osg/MatrixTransform>
@ -35,6 +36,7 @@ typedef std::vector<std::string> FileList;
osg::Geode* createSectorForImage(osg::Image* image, osg::TexMat* texmat, float s,float t, float radius, float height, float length) osg::Geode* createSectorForImage(osg::Image* image, osg::TexMat* texmat, float s,float t, float radius, float height, float length)
{ {
bool flip = image->getOrigin()==osg::Image::TOP_LEFT;
int numSegments = 20; int numSegments = 20;
float Theta = length/radius; float Theta = length/radius;
@ -74,8 +76,8 @@ osg::Geode* createSectorForImage(osg::Image* image, osg::TexMat* texmat, float s
coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,height*0.5f)); // top coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,height*0.5f)); // top
coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,-height*0.5f)); // bottom. coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,-height*0.5f)); // bottom.
tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f,1.0f)); // top tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f, flip ? 0.0f : 1.0f)); // top
tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f,0.0f)); // bottom. tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f, flip ? 1.0f : 0.0f)); // bottom.
} }
@ -106,6 +108,13 @@ osg::Group * loadImages(std::string image1, std::string image2, osg::TexMat* tex
osg::ref_ptr<osg::Image> imageRight = osgDB::readImageFile(image2); osg::ref_ptr<osg::Image> imageRight = osgDB::readImageFile(image2);
if (imageLeft.valid() && imageRight.valid()) if (imageLeft.valid() && imageRight.valid())
{ {
osg::ImageStream* streamLeft = dynamic_cast<osg::ImageStream*>(imageLeft.get());
if (streamLeft) streamLeft->play();
osg::ImageStream* streamRight = dynamic_cast<osg::ImageStream*>(imageRight.get());
if (streamRight) streamRight->play();
float average_s = (imageLeft->s()+imageRight->s())*0.5f; float average_s = (imageLeft->s()+imageRight->s())*0.5f;
float average_t = (imageLeft->t()+imageRight->t())*0.5f; float average_t = (imageLeft->t()+imageRight->t())*0.5f;
osg::Geode* geodeLeft = createSectorForImage(imageLeft.get(),texmatLeft,average_s,average_t, radius, height, length); osg::Geode* geodeLeft = createSectorForImage(imageLeft.get(),texmatLeft,average_s,average_t, radius, height, length);