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Further work on osg::ImageSequence/osgDB::ImagePager

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This commit is contained in:
Robert Osfield
2008-07-21 21:00:57 +00:00
parent 73bcc2613c
commit 041a06b89d
12 changed files with 168 additions and 68 deletions
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29
examples/osgimagesequence/osgimagesequence.cpp
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@@ -31,24 +31,9 @@
#include <iostream>
//
// A simple demo demonstrating different texturing modes,
// including using of texture extensions.
// A simple demo demonstrating how to set on an animated texture using an osg::ImageSequence
//
struct ImageUpdateCallback : public osg::StateAttribute::Callback
{
/** do customized update code.*/
virtual void operator () (osg::StateAttribute* attr, osg::NodeVisitor* nv)
{
const osg::FrameStamp* fs = nv!=0 ? nv->getFrameStamp() : 0;
osg::Texture2D* texture2D = dynamic_cast<osg::Texture2D*>(attr);
if (texture2D && texture2D->getImage() && fs)
{
texture2D->getImage()->update(fs);
}
}
};
osg::StateSet* createState()
{
// read 4 2d images
@@ -58,11 +43,11 @@ osg::StateSet* createState()
osg::ref_ptr<osg::Image> image_3 = osgDB::readImageFile("Images/skymap.jpg");
osg::ref_ptr<osg::ImageSequence> imageSequence = new osg::ImageSequence;
imageSequence->addImage(image_0.get(), 0.25);
imageSequence->addImage(image_1.get(), 0.25);
imageSequence->addImage(image_2.get(), 0.25);
imageSequence->addImage(image_3.get(), 0.25);
imageSequence->addImage(image_0.get());
imageSequence->addImage(image_1.get());
imageSequence->addImage(image_2.get());
imageSequence->addImage(image_3.get());
osg::Texture2D* texture = new osg::Texture2D;
texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
@@ -71,7 +56,7 @@ osg::StateSet* createState()
texture->setImage(imageSequence.get());
//texture->setTextureSize(512,512);
texture->setUpdateCallback(new ImageUpdateCallback);
texture->setUpdateCallback(new osg::ImageSequence::UpdateCallback);
// create the StateSet to store the texture data
osg::StateSet* stateset = new osg::StateSet;