Re: [osg-users] glmultmatrix in osg

Hi, I also have problem regarding what is the difference between premult and postmult. Which one of the two is similar to opengl transformations??? Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=17320#17320 __

[osg-users] glmultmatrix in osg

Hi, I want set my matrix to current modelview matrix and want to multiply it myself.Can someone please help me how to do it in osg. Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=17319#17319 _

Re: [osg-users] Updating a scene using OSG and VRJuggler

Hi, Thank you very much for the help.So I need to call scene->accept(updateVisitor); every frame instead of using updatetraversal or update right??By the way I am updating a scene for a prerender camera. Thank you! Cheers, Tim -- Read this topic online here: http://forum.ope

Re: [osg-users] Problem with a program in osg qsg

Hi, Thank you very much for the reply.I also have an another question , in this code while(!viewer.done()) { viewer.advance(); viewer.eventTraversal(); viewer.updateTraversal(); viewer.renderingTraversals(); } if I remove viewer.updateTraversal(); and Is there a way to update the scene witho

Re: [osg-users] Updating a scene using OSG and VRJuggler

Hi, I will explain what I didnt understand in the code.Does calling scene->accept(updateVisitor); everyframe will automatically call the updatecallbacks and update the scene.Because here no viewer.updateTraversal() or sceneview->update() methods are not called to update the scene. Thank y

Re: [osg-users] Updating a scene using OSG and VRJuggler

Hi, Can you please eloborate a little bit Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=17105#17105 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://list

[osg-users] Updating a scene using OSG and VRJuggler

Hi, I am using Openscenegraph in VRJuggler.I want to update the scene.Since there wont be any things like viewer.run() or viewer.updateTraversal I dont know how to update my scene.There's update() method but the update() method uses a predefined nodecallback to update the scene and its defin

Re: [osg-users] Updating a texture(urgent)

Hi, The real problem im facing is when Im editing the images i am getting popping textures. Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16726#16726 ___ osg-users mailing

Re: [osg-users] Updating a texture(urgent)

Hi Updating means i am changing the image in the texture. Thanks & RegaRds, Tim. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16712#16712 ___ osg-users mailing list osg-users@lists.openscenegraph.o

[osg-users] Updating a texture(urgent)

Hi, I am trying to update a texture in one node and Im applying it in other node.The problem Im facing with this is only the update to the current frame is seen.The previous updates are not seen on the texture.If I want to update a texture and those updates need to be permanently applied to the

Re: [osg-users] question regarding attribute functor

Hello I also have an another question,I want to update my textures dynamically and my app dont use any multithreading. Do I need to use update or drawcallback??The other thing is since textures are attached to a stateset and stateset in turn to a geode I think I need to use a Node callback or a

[osg-users] question regarding attribute functor

Hi, What is the function of osg::Drawable::AttributeFunctor class in osg.What does it do?? Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16615#16615 ___ osg-users mailing

[osg-users] Setting a texture

Hi, I have a question regarding setting a same texture for two nodes.I can inherit the state but two nodes have different properties(like material).The main reason for doing this is to update the texture in a particular node and apply this to a model an another node.Thanks in advance. -

Re: [osg-users] apply() method??

Thank you.I also have one more question,In some source example I find derived class is derived from osg::Drawable::UpdateCallback instead of a NodeCallback or DrawableCallback.Why is it used?? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16519#1

Re: [osg-users] apply() method??

Hi Jason Thank you very much for the quick reply. Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16510#16510 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.ope

[osg-users] apply() method??

Hi, I dont understand why apply() method is used in osg??? That means a function needs to be applied for all particular node types?? Thank you! Cheers, Tim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16508#16508 _

[osg-users] Filling a quad in a texture

Hi, I have four points of 2d texture coordinates inside a texture and I need to fill the quad formed by these four points in the texture.That is I need to update the texture array at those pixels.I actually use openGL to be specific.Can someone suggest an easy way of doing it??Is there an osg s

Re: [osg-users] Texture problems with OSG

Max wrote: > Hi, > > > eatpepsi wrote: > > > > 2)Considering second question I want to find texture coordinate of a > > particular point on the model.Using picking I can find the 3d position of > > an object,Similarly can I get the assigned texture coordinates at an > > arbitrary point using

Re: [osg-users] Texture problems with OSG

Hi, Thank you for the reply guys. 1)The first question I want to find a function similar to glTexImage2D in osg. Here is some code regarding this, [code] /* Create checkerboard texture */ #define checkImageWidth 64 #define checkImageHeight 64 static GLubyte checkImage[checkImageHeight][checkIm

[osg-users] Texture problems with OSG

Hi, I have two problems with texturing in osg. 1)The first problem is to create a procedural 2D texture.The setImage function doesnt work for me. I created a 2D texture array image[64][64][4]; image->setImage(64,64,1,4,GL_RGBA,GL_UNSIGNED_BYTE,(unsigned char*)checkImage,osg::Image::USE_NEW_DEL