---------- Initial Header ----------- >From : [EMAIL PROTECTED] To : "OpenSceneGraph Users" [email protected] Cc : Date : Wed, 2 Apr 2008 09:31:37 +0100 Subject : Re: [osg-users] How to load different tga files in a smoothly way like a movie
Hi bobby lobby (just a likely a name ...I presume this is fine ;-) like Umpa Lumpa) As you know, what you are planning to do next summer is what we are going to realize in our building. :) Where i will find Quicktime and Xine-lib plugins? thanks > Hi Umpa Lumpa (just a likely a name as digitcodecpp so I presume this > is fine ;-) > > The best guide is the existing Quicktime and Xine-lib plugins, they > both run a background thread for the movies stream and subclass from > osg::ImageStream. ImageStream by default constructs a > PixelBufferObject which helps immensly with stream data to textures. > osg::Texture* itself supports texture subloading, but I'm not sure if > 1.2 requires you to reuse the same osg::Image/ImageStream rather than > applying a separate osg::Image on each update. > > It just so happens for my future work on Present3D due later this > Spring and through the summer I plan to write a movie class that > enables streaming of movies form standard image formats, this is > something I would integrate into the core OSG. The motivation is the > ability to use non standard video dimensions and full RGBA or > intensity data streams. It also opens the possibility of stream 3D > textures as well. > > Robert. > > On Wed, Apr 2, 2008 at 8:03 AM, digitcodecpp <[EMAIL PROTECTED]> wrote: > > Hi guys, > > my goal is to create an application that load different .tga files in a > > sequence like a movie. > > To do that, i have created a geometry that will contain all the textures > > (images). First of all, i load all images file, using : > > mImageTexture = new osg::Texture2D; > > typedef osg::Image* _IMAGES; > > std::vector<_IMAGES> mImgFaceArray; > > osg::StateSet* mStateOne; > > > > ... a loop to load different .tga file (myfile_000k.tga . where k is > > between 0...1000 with 720x576 resolution) in mImgFaceArray. > > > > Then, i use StateSet : > > > > mStateOne->setTextureAttributeAndModes(0,mImageTexture,osg::StateAttribute::ON); > > mStateOne->setMode(GL_LIGHTING, osg::StateAttribute::OFF); > > > > Once i have load all images, in a method that i call continuosly i'm using: > > > > .... > > mImageTexture.get()->setDataVariance(osg::Object::DYNAMIC); > > mImageTexture.get()->setResizeNonPowerOfTwoHint(false); > > mImageTexture.get()->setImage(mImgFaceArray.at(imageIndexArray)); > > .... > > > > to change textures at 30 fps. > > But, when new image is load, there is a delay that prevent application to > > run smoothly like a movie. > > I tryed it also with .jpg files, but i get the same delay when i load a > > new texture. > > I tryed also to use osg::TextureRectangle instead osg::Texture2D, but in > > this case i don't see the texture. > > Could anyone give me any suggest about? > > I'm using openscenegraph 1.2. > > Thank in advance. > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
