Re: [osg-users] Capture image on iOS get black image

Dear Duc, If you read your own first mail with the code snippet you pasted: virtual void operator () (osg::RenderInfo& renderInfo) const { #if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) glReadBuffer(_readBuffer); #else osg::notify(osg::NOTICE)<<"Error:

Re: [osg-users] Check if sampler2D is valid in fragment shader

Hi Sebastian, > > There is no direct way. If you need shaders with and without texturing > you should bind different programs to the affected geometries. > I think my problem is a little bit different. I will receive the final scene with or without textures and process it properly. I won't

Re: [osg-users] Material Properties to Change the Normal Intensity

Hi Sebastian, I followed your tip and passed the reflectance as float-uniform. Each object has a different reflectance passed by individual statesets. ... Thank you! Cheers, Rômulo -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69791#69791

Re: [osg-users] Capture image on iOS get black image

Hi, it is hard to tell what is going wrong without further information. For instance it is crucial to call the glReadPixel function in the right moment. Could you provide some example that shows the problem? Also: is the osgscreencapture or the osgviewers screenshot-functionality working? Cheers

Re: [osg-users] Capture image on iOS get black image

hartwigw wrote: > Hi, > > glReadPixels is not supported by iOS. > > Cheers, > Hartwig But my iOS device use Open GLES 2.0 an it support glReadPixels function -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69789#69789 __

[osg-users] Texturing with GLBeginEndAdapter

Hello, There is some code in a library which I want to adapt for OSG. The code is pretty old and uses the old style OpenGL. I don't have the time it would take to rewrite this code so I would like to use the GLBeginEndAdapter to make this code work with OSG. Looking at the GLBeginEndAdapt

[osg-users] mixing Direct3D and OSG...

Hello, I have a Direct3D app in where I need to render a background image using OSG. The approach I was thinking of using is to use off-screen memory or context to render the OSG imagery and then try to load the results into a Direct3D surface somehow. Perhaps a render-to-texture sort of approa

[osg-users] mixing Direct3D and OSG...

Hello, I have a Direct3D app in where I need to render a background image using OSG. The approach I was thinking of using is to use off-screen memory or context to render the OSG imagery and then try to load the results into a Direct3D surface somehow. Perhaps a render-to-texture sort of approa

Re: [osg-users] System requirements for OpenSceneGraph

"Nikita Petrov" writes: > I've googled a lot and I can't find any info about OpenGL or graphic card > requirements for OSG. > Yes, because it pretty much depends on what your code is doing and in which hardware it is executing. I would dare to say that there are not any minimum requirements for

Re: [osg-users] looking for a terrain database building toolchain

Hi, Daniel. No, unfortunately, such integration doesn't exist. Proland uses OpenGL 3.3 and also uses similar scenegraph system. Good luck! Cheers, Nickolai -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69784#69784 _

[osg-users] System requirements for OpenSceneGraph

Hi, I'm trying to run OSG and osgEarth on very old PC. nVidia GeForce MX440 with latest drivers (93.71_forceware_winxp2k_english_whql.exe) - OpenGL 1.5 Pentium 4 2.4GHz WinXP x86 I've successfully built OSG in Visual Studio 2010. osgversion.exe - works fine. But when I run anything like osgview

Re: [osg-users] Capture image on iOS get black image

Hi, glReadPixels is not supported by iOS. Cheers, Hartwig -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69782#69782 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.opensc

Re: [osg-users] looking for a terrain database building toolchain

Hi Raizel Proland Looks pretty interesting. Is there an exising OSG Integration available somewhere? Cheers, Daniel -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69781#69781 ___ osg-users mailing

Re: [osg-users] Capture image on iOS get black image

I can't get data for image with this function Code: glReadPixels(x,y,width,height,format,type,_data); the _data is always return "" Cheers, duc -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69780#69780 ___

[osg-users] Custom camera manipulator

Hi, I'm building a terrain viewer. Using the "Terrain Manipulator" as the camera Manipulator works fine, except that the movement with the middle mouse key 'sticks' to the ground (by the height) which makes little jumps when I.move How can I solve that jumps.? Thank you! Cheers, Joe ---