Re: [osg-users] ViewDependentShadowMap memory leaks with CompositeViewer
Hi Robert Sounds like a good idea to use observers. I just did the following: - Derived my customized ViewDependentShadowMap class also from Observer. - override the createViewDependentData method to add this-ptr to CullVisitors observers - implemented Observers objectDeleted method to remove the CullVisitors map entry from _viewDependentDataMap. Now I noticed that the CullVisitors pointer that is passed into objectDeleted method does not match any of the CullVisitors that are used for culling, therefore the entry in the map is never found and never deleted. This is strange... Next I try to store the pointer to the View object and add an observer onto it. Maybe I have more luck... Cheers, Daniel -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51641#51641 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ViewDependentShadowMap memory leaks with CompositeViewer
HI Daniel, The CullVisitor's no matching is an odd one. Any chance it's an issue of virtual inheritance somewhere along the line. Do you try a dynamic_cast to CullVistor on the object deleted? Robert. On 20 December 2012 08:27, Daniel Schmid daniel.sch...@swiss-simtec.chwrote: Hi Robert Sounds like a good idea to use observers. I just did the following: - Derived my customized ViewDependentShadowMap class also from Observer. - override the createViewDependentData method to add this-ptr to CullVisitors observers - implemented Observers objectDeleted method to remove the CullVisitors map entry from _viewDependentDataMap. Now I noticed that the CullVisitors pointer that is passed into objectDeleted method does not match any of the CullVisitors that are used for culling, therefore the entry in the map is never found and never deleted. This is strange... Next I try to store the pointer to the View object and add an observer onto it. Maybe I have more luck... Cheers, Daniel -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51641#51641 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OSG + QT + Mac focus issue
Hi I have a bug where, after closing an OSG widget, keyboard events don't get sent properly. We use Qt4.8.4 and OpenSceneGraph (latest version from SVN). We create several qwidgets as tabs widgets, and have the ability to close them (using a kb short cut or the close button on the tab). The OSG widget uses osgQt. When the OSG widget is closed, I no longer get keyboard event anywhere in the app even though focus appears to be properly set. Using the debugger, I see the event is received in QT's code in - (void)sendEvent:(NSEvent *)event in qcocoasharedwindowmethods_mac_p.h which then calls [super sendEvent:event]; but this fails somewhere in Apple's toolkit code and the application beeps (not by calling Qt's beep function). It would normally end up calling - (void)keyDown:(NSEvent *)theEvent in qcocoaview_mac.mm I tracked down the closing of the OSG widget to see if it was doing anything weird, but it all seems fine. I don't know if the bug is with our code, Qt or OSG but I'm failing to find out why this is happening and was wondering if anyone had come across anything like that. Mike Mike Krus (PhD) - Principal Software Engineer Midland Valley Exploration 144 West George Street Glasgow G2 2HG, UK Tel: +44 141 332 2681 Fax: +44 141 332 6792 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to set mouse position
Hi. Can anyone tell me how to set mouse position in OSG? I tried to google it up without any success. Thanks. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to set mouse position
HI Michael, On 20 December 2012 10:10, michael kapelko korn...@gmail.com wrote: Can anyone tell me how to set mouse position in OSG? I tried to google it up without any success. viewer.requestWarpPointer(x,y); Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG + QT + Mac focus issue
Hi Mike, Unfortunately I don't have an OSX box or much experience with Qt to contribute to resolving this issue, hopefully others might be able to help, but the combination of Qt+OSX is likely to be quite niche so it might something you'll need to spearhead. As a general comment that might help the process of characterizing the bug, does the same problem appear on other OS's? Does it appear on other versions of Qt? I do wonder if the newly released Qt5 might have changed things under OSX - possible for better or worse! Robert. On 20 December 2012 09:15, Mike Krus m...@mve.com wrote: Hi I have a bug where, after closing an OSG widget, keyboard events don't get sent properly. We use Qt4.8.4 and OpenSceneGraph (latest version from SVN). We create several qwidgets as tabs widgets, and have the ability to close them (using a kb short cut or the close button on the tab). The OSG widget uses osgQt. When the OSG widget is closed, I no longer get keyboard event anywhere in the app even though focus appears to be properly set. Using the debugger, I see the event is received in QT's code in - (void)sendEvent:(NSEvent *)event in qcocoasharedwindowmethods_mac_p.h which then calls [super sendEvent:event]; but this fails somewhere in Apple's toolkit code and the application beeps (not by calling Qt's beep function). It would normally end up calling - (void)keyDown:(NSEvent *)theEvent in qcocoaview_mac.mm I tracked down the closing of the OSG widget to see if it was doing anything weird, but it all seems fine. I don't know if the bug is with our code, Qt or OSG but I'm failing to find out why this is happening and was wondering if anyone had come across anything like that. Mike Mike Krus (PhD) - Principal Software Engineer Midland Valley Exploration 144 West George Street Glasgow G2 2HG, UK Tel: +44 141 332 2681 Fax: +44 141 332 6792 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
Is there one definitive list that explains all the built-in osg uniforms? This one would have come handy earlier, but I did not know about it. Christian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ViewDependentShadowMap memory leaks with CompositeViewer
Hi Robert I tried with dynamic_cast and also with reinterpret_cast. Both didn't give me the correct pointer. Could it be that with multiple inheriance it is not working correctly? CullVisitor is derived from NodeVisitor AND CullStack... Finally I created my own map of the following type: typedef std::maposgUtil::CullVisitor*, osg::Camera* ViewMapType; I added the observer to the camera. So as soon as a camera is deleted (view removed), I get notified. Then I iterate through the list above to find out which CullVisitors are related to the camera (can be multiple). Finally I remove these cullvisitors entries from _viewDependentDataMap. Maybe not the most beautifull solution, but this way I was succesfull. Thank you! Cheers, Daniel -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51649#51649 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
Christian Buchner writes: Is there one definitive list that explains all the built-in osg uniforms? This one would have come handy earlier, but I did not know about it. Take a look at Mike Weiblen's GLSL cheatsheet, although it could be outdated: http://mew.cx/glsl_quickref.pdf -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] multiple POST RENDER cameras
Hello, i looked for HUD and how to implement them. I also want to play a video behind the 3D scene which could also be done with POST RENDER. Is is it possible to play Video as background image (like described in the two available OSG books) then post render the 3D Scene with POST_RENDER and after that render the semi-transaprent HUD (with texts etc) POST_RENDER ? Cheers, David ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] multiple POST RENDER cameras
Hi David, You can have as many pre, nested or post Camera as you wish and can very the number and type on each frame. Robert. On 20 December 2012 13:41, DavidHornung horn...@googlemail.com wrote: Hello, i looked for HUD and how to implement them. I also want to play a video behind the 3D scene which could also be done with POST RENDER. Is is it possible to play Video as background image (like described in the two available OSG books) then post render the 3D Scene with POST_RENDER and after that render the semi-transaprent HUD (with texts etc) POST_RENDER ? Cheers, David __**_ osg-users mailing list osg-users@lists.**openscenegraph.org osg-users@lists.openscenegraph.org http://lists.openscenegraph.**org/listinfo.cgi/osg-users-** openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] DDS Texture vanish with LINEAR_MIPMAP_LINEAR
Hi, i probably have solution for this problem, i have found a bug in dds plugin ReaderWriterDDS.cpp Line 633 unsigned numMipmaps = osg::Image::computeNumberOfMipmapLevels( s, t, r ); when compute numMipmaps returns wrong number. this number is less then number of mipmaps in dds file( ddsd.dwMipMapCount ) . This bug makes that when dds mipmaps are loaded to opengl last mipmap (4x4) isn't loaded. and with combination with LINEAR_MIPMAP_LINEAR make this bug. the numMipmaps should be taken form ddsd.dwMipMapCount in attachment i send a corrected version of file. ... Thank you! Cheers, Lukasz -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51653#51653 Attachments: http://forum.openscenegraph.org//files/readerwriterdds_204.cpp ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
Hi Not sure if it is still true, but last time i used this stuff with stereo setups (not sure but it can hold for any offset-based slave cameras setup) osg_ViewMatrix and it's inverse was containing main camera view (and inverse) matrix and was same for both eyes. Cheers,Sergey. 20.12.2012, 00:12, "Glenn Waldron" gwald...@gmail.com:vec4 worldVert = osg_ViewMatrixInverse * gl_ModelViewMatrix * gl_Vertex; ...where osg_ViewMatrixInverse is a built-in OSG uniform (type mat4). Just be aware: GLSL is single-precision, so you will lose some precision doing this.Glenn Waldron / @glennwaldronOn Wed, Dec 19, 2012 at 3:03 PM, Ethan Fahy ethanf...@gmail.com wrote:Hello all, I would like to have access to vertex world coordinates in my GLSL vertex shader that is attached to an osg::Node. In GLSL the Model Matrix and the View Matrix are combined into the ModelViewMatrix, so you cannot get access to the Model Matrix without either passing in the Model Matrix itself or the Inverse View Matrix (which could be multiplied by the ModelViewMatrix to get the Model Matrix). I am familiar with how to attach an osg::Uniform to pass uniforms into the shader; my question is, what is the best way to obtain either the Model Matrix or the Inverse View Matrix from a given osg::Node? I think I may be able to use osg::getLocalToWorld() to obtain the Model Matrix? I have read through this thread: http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2008-April/009903.html but it doesn't really arrive at a satisfying conclusion and may or may not be out of date. Any advice is appreciated. Thanks, -Ethan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51639#51639 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ,___osg-users mailing listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Change Camera FBO attachment
Hi Robert, thanks for your suggestion. The reason I went for a slave camera is that it makes it easier to add the FBO path at a later point, without touching the scenegraph, as it inherits the viewer's scene data by default. Besides inserting the cameras subgraph into the main graph, do you think it's reasonable to attach the FBO cameras group as the subgraph of a fake slave camera, and attach the main scene also as FBO camera child? I draw a little graph below for clarity. Thank you, Ricky VIEWER / \ MAIN CAM SLAVE_CAM | | | | |switch | | | / | \ |/ | \ | fbo1 fbo2 fbo3 | / / / \ / / / \ / / / \ / / / | | / / | | / / SCENE On Tue, Dec 18, 2012 at 9:25 PM, Robert Osfield robert.osfi...@gmail.comwrote: Hi Riccardo, Setting up the camera's rendering backend on each frame will be expensive. Personally I'd just using multiple RTT Camera each with their own FBO and Textures associated with them. Using a Switch, Sequence or NodeMask's you can select which of the Camera you want to render to on each frame. Robert. On 18 December 2012 17:24, Riccardo Corsi riccardo.co...@kairos3d.itwrote: Hi All, in my application I need an FBO camera to render different frames into different textures, because they will be used by an encoder and thus need to persist for some time. I haven't found an easy way to copy the contents of a texture or of an FBO into another texture. So during the update traversal I change the camera texture attachment with a new texture and call Renderer::SetCameraRequiresSetUp(true). Eveything works fine, but I'm wondering if there's a better/cleaner approach to achieve the same result, as I don't know whether requesting the camera setup every frame has a huge impact on perfomances. Thank you, Ricky ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
The OpenSceneGraph Reference Manual at lulu.com also has this info, but both resources are out of date. You can easily get a list of OSG's built-in uniforms by doing a recursive grep in your OSG source tree for getOrCreateUniform. All OSG built-in uniforms are created using this function. -Paul On 12/20/2012 4:57 AM, Alberto Luaces wrote: Christian Buchner writes: Is there one definitive list that explains all the built-in osg uniforms? This one would have come handy earlier, but I did not know about it. Take a look at Mike Weiblen's GLSL cheatsheet, although it could be outdated: http://mew.cx/glsl_quickref.pdf ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
If I insert the line: vec4 worldVerts = osg_ViewMatrixInverse * gl_ModelViewMatrix * gl_Vertex; into my vertex shader (without actually using it for anything, just declaring it) I get the following error: error C1008: undefined variable osg_ViewMatrixInverse Do I have to pass osg_ViewMatrixInverse as a uniform from the osg side or should I be able to use osg_ViewMatrixInverse in any GLSL code attached to an osg::Node without any extra effort? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51660#51660 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Model Matrix in Vertex Shader
Nevermind, I figured out that you have to put the following at the top of the vertex shader before being able to use osg_ViewMatrixInverse: uniform mat4 osg_ViewMatrixInverse; -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51661#51661 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Draw shadow map to quad problem.
Hello.
I have a camera which renders to osg::Camera::DEPTH_BUFFER using
camera-attach(osg::Camera::DEPTH_BUFFER, texture);
Here is how i create the texture:
texture-setInternalFormat(GL_DEPTH_COMPONENT);
texture-setSourceFormat(GL_DEPTH_COMPONENT);
texture-setSourceType(GL_UNSIGNED_BYTE);
texture-setShadowComparison(false);
My Model draws to this texture in fragment shader using : gl_FragDepth
= gl_FragCoord.z;
After that i render this texture to a quad in fragment shader using
uniform sampler2D depth_texture;
void main(){
float depth = texture2D(depth_texture, gl_TexCoord[0]).r;
gl_FragColor = vec4(depth, depth, depth , 1.0);
}
The problem is that i get the 2 following errors and i cant figure out
where the problem is caused.
error1: 'texture2D' : no matching overloaded function found (using
implicit conversion)
error2: 'r' : field selection requires structure , vector or matrix on
left hand side.
What do i do wrong ?
Any help would much appreciated.
Thank you for your time.
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[osg-users] [vpb] osgdem with terrain from worldMachine
Hi, i would create a tiled Terrain with osgdem . i have my heightMap and colourMap made with WorldMachine a terrain editor http://www.world-machine.com/ . With the heightmap i have no problem but with the colour map i got weird artifacts. This is my process: i got the 8 bit .png colour map from WM. gdal_tranlsate colourMapDistorted_gdal_tr_16bit_02.png colourMapDistorted_gdal_tr_16bit_02.tif gdaladdo -r average colourMapDistorted_gdal_tr_16bit_02.tif 2 4 8 16 32 then osgdem: osgdem -t data/colourMapDistorted_gdal_tr_16bit_02.tif -d data/icebergHeightMapDistorted02_gdal.tif -l 8 -v 1 -o iceberg.ive -a iceberg.osga i tried with other picture format, WM may output .bmp(8bit) ,png(8bit) .tiff(8bit) ,png(16bit) .tiff(16bit). i tired with all format but with no luck. The only difference that i noticed is that when i average the .tif(16bit) i got an alpha image instead of a RGB image . Who can enlight in the right direction? Thank you! Cheers, walter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51664#51664 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] What can I do to improve rendering performance for a bunch of billboarded nodes?
I have a scene that contains 100s of small low-complexity flat geometries (triangles, squares, ngons, etc). Each of them is parented with an autotransform node so that they constantly face the camera. Color data is passed through vertex attributes and there's no texture data. Is there anything I can do to improve rendering performance in this scenario? This is on a mobile device (OpenGL ES 2) and I get a fair bit of slow down as the number of objects increases. Preet ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
