Re: [osg-users] [build] Why Restoring OpenGL currentState is not working with OpenGLES2 but working with GLES1
Hi,
The error is not with the previous post code.
When I added the following code then the model is displayed.
Code:
mtForMarker[idx]=new osg::MatrixTransform();
osg::Shader * vshader = new osg::Shader(osg::Shader::VERTEX,
gVertexShader );
osg::Shader * fshader = new osg::Shader(osg::Shader::FRAGMENT,
gFragmentShader );
osg::Program * prog = new osg::Program;
prog-addShader ( vshader );
prog-addShader ( fshader );
mtForMarker[idx]-getOrCreateStateSet()-setAttribute ( prog );
mtForMarker[idx]-addChild(loadedModel[idx].get());
modelSwitch-addChild(mtForMarker[idx].get());
osgViewer::Viewer::Windows windows;
_viewer-getWindows(windows);
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();itr !=
windows.end();++itr)
{
(*itr)-getState()-setUseModelViewAndProjectionUniforms(true);
(*itr)-getState()-setUseVertexAttributeAliasing(true);
}
This code I added from osgAndroidOpenGLES2 example.
As I am new to OSG I have two doubts
1) Why should I add the shaders in OpenGLES2 to display model. If I remove this
code then the model is not displayed. OpenGLES1 dosnt have this shaders.
2) If I add this code then the textures are not applied to my model. I got
model from 3DS MAX. How can I get textures?
Can you please guide me how to get textures? If shaders are necessary to render
model on Android then how can I handle textures (or any others) ? Is there any
tutorial to handle this in Android?
...
Thank you!
Cheers,
Koduri
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[osg-users] Problem compiling VIrtualPlanetBuilder on OS X
I am trying to build VirtualPlanetBuilder against OpenSceneGraph 3.1.0 by using the trunk branch from the virtual planet builder svn repository on OS X Mountain Lion (10.8.2) and I am getting the following errors whilst compiling BuildOptionsIO.cpp: /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:508:42: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' unsigned int size = 0; is size IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:515:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:523:19: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os size OS_BEGIN_BRACKET std::endl; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:34:36: note: expanded from macro 'OS_BEGIN_BRACKET' #define OS_BEGIN_BRACKETos.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:529:11: error: no member named 'END_BRACKET' in 'osgDB::OutputStream' os OS_END_BRACKET std::endl; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:35:36: note: expanded from macro 'OS_END_BRACKET' #define OS_END_BRACKET os.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:539:42: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' unsigned int size = 0; is size IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:545:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:552:19: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os size OS_BEGIN_BRACKET std::endl; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:34:36: note: expanded from macro 'OS_BEGIN_BRACKET' #define OS_BEGIN_BRACKETos.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:558:11: error: no member named 'END_BRACKET' in 'osgDB::OutputStream' os OS_END_BRACKET std::endl; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:35:36: note: expanded from macro 'OS_END_BRACKET' #define OS_END_BRACKET os.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:571:11: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' is IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:577:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:586:11: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os OS_BEGIN_BRACKET std::endl; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:34:36: note: expanded from macro 'OS_BEGIN_BRACKET' #define OS_BEGIN_BRACKETos.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:594:11: error: no member
Re: [osg-users] R: building OSG 3.0.1 on Mac Snow Leopard
Hi Gianluca, the message PixelBufferCocoa :: realizeImplementation not implemented yet should not lead to a crash. Without a stack-trace it's hard to tell why your app crashes. And please keep the discussion on the osg-users-list, so other have a chance to search the archive. cheers, Stephan Am 16.11.12 12:13, schrieb Gianluca Natale: Hi Stephan, thanks for your answer. I did what you suggested, that is to say use the libs provided by the system, and set OSG_WINDOWING_SYSTEM to Cocoa. Anyway, while it builds OSG (on a MacOS 10.6.8), it gave me these warnings, which I don't know the meaning of (sorry, I don't know objective-C at all): Warning: class 'GraphicsWindowCocoaDelegate' does not implement the 'NSWindowDelegate' protocol. I ignored it, since it built OSG in any case. Then I built my application based upon OSG, and everything built without errors and warning. But when I launched it, I see this message on screen: PixelBufferCocoa :: realizeImplementation not implemented yet And my application quits unexpectedly. I still haven't debugged yet, I wonder if that might be the cause of such exit. I just took a look at your code in PixelBufferCocoa.mm, but as I told you I don't know anything of Objective-C. Thanks, Gianluca -Messaggio originale- Da: Stephan Maximilian Huber [mailto:ratzf...@digitalmind.de] Inviato: giovedì 15 novembre 2012 12:39 A: OpenSceneGraph Users Cc: Gianluca Natale Oggetto: Re: [osg-users] building OSG 3.0.1 on Mac Snow Leopard Hi Gianluca, it should be safe to use the libs provieded by the system. Carbon is deprecated, and most new features went into the cocoa window implementation of osg, so please use the cocoa window-implementation. cheers, Stephan Am 14.11.12 17:19, schrieb Gianluca Natale: Hi all, I'm trying to build OSG 3.0.1 on Mac OSX 10.6 using the procedure well-described on OSG website. But when I clicked on Configure in CMake-gui, after setting Where is the source code and Where to build the binaries, I gotten many red-highlighted options. I could fix most of them (actually I didn't set my build folder as suggested, i.e. the prebuilt packages for dependencies are not in OpenSceneGraph/3rdParty), but I have some doubt for some of them, I hope anyone can give me some tip. Sorry if these are all silly questions! CURL LIBRARY: CURL_INCLUDE_DIR points to /usr/include, instead of pointing to /myBuildfolder/3rdParty/include, where I unzipped the prebuilt packages. So, curl is already installed on my system, and the version I have there is 4. But in prebuilt packages there is version 4.1. Should I use the newest one? FREETYPE LIBRARY: Same as CURL, it is already installed on my system. Should I use in any case that provided in the prebuilt packages, or can I leave that gotten from the system? OSG_WINDOWING_SYSTEM defaults to Carbon on my machine. Isn't it deprecated? Should I change it to Cocoa? ZLIB LIBRARY: Same question as curl, should I use in any case the version provided in the prebuilt packages? Thanks, Gianluca ___ 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] Cannot set custom shader for a node
Hi. I'm using SoftShadowMap scene and I want to assign custom shader to one of the nodes, but it doesn't work. I do it like that: osg::ref_ptrosg::Shader frag = new osg::Shader(osg::Shader::FRAGMENT, code); osg::StateSet *ss = box-getOrCreateStateSet(); osg::ShaderAttribute *sa = new osg::ShaderAttribute; sa-setType(osg::StateAttribute::FRAGMENTPROGRAM); ss-setAttribute(sa); sa-addShader(frag.get()); The complete code is here: http://pastie.org/5387472 As seen from the code, I tried to enable shader composition, but that didn't help me. Am I doing it wrong? ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] slave camera using rtt texture
Hi all I have a composite viewer, where the main camera renders to texture. No I added a slave camera (POST_RENDER that uses the same graphics context as the main camera). I had a screen quad child on which I would like to render the texture from the main camera. But all I get is a black screen. Regards Daniel [code] osg::Camera* camera = new osg::Camera; // set the projection matrix camera-setProjectionMatrix(osg::Matrix::ortho2D(0,1920,0,1200)); // set the view matrix camera-setReferenceFrame(osg::Transform::ABSOLUTE_RF); camera-setViewMatrix(osg::Matrix::identity()); // only clear the depth buffer camera-setClearMask(0); // draw subgraph after main camera view. camera-setRenderOrder(osg::Camera::POST_RENDER); //GLenum buffer = traits-doubleBuffer ? GL_BACK : GL_FRONT; camera-setDrawBuffer(GL_BACK); camera-setReadBuffer(GL_BACK); // we don't want the camera to grab event focus from the viewers main camera(s). camera-setAllowEventFocus(false); camera-setGraphicsContext(a_viewer-getCamera()-getGraphicsContext()); camera-setViewport(a_viewer-getCamera()-getViewport()); camera-addChild( createScreenQuad(1.0f, 1.0f) ); osg::Camera::BufferAttachmentMap map = a_viewer-getCamera()-getBufferAttachmentMap(); osg::Texture* input = map[osg::Camera::COLOR_BUFFER0]._texture.get(); camera-getOrCreateStateSet()-setTextureAttributeAndModes(0, input); a_viewer-addSlave(camera, false); [/code] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem compiling VIrtualPlanetBuilder on OS X
Hi Tony, Raising the problem on the mailing list is the appropriate place. IF you have a fix then just post it to osg-submissions where I can merge it. Cheers, Robert. On 16 November 2012 12:47, Tony Vasile ming...@gmail.com wrote: I am trying to build VirtualPlanetBuilder against OpenSceneGraph 3.1.0 by using the trunk branch from the virtual planet builder svn repository on OS X Mountain Lion (10.8.2) and I am getting the following errors whilst compiling BuildOptionsIO.cpp: /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:508:42: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' unsigned int size = 0; is size IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:515:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:523:19: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os size OS_BEGIN_BRACKET std::endl; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:34:36: note: expanded from macro 'OS_BEGIN_BRACKET' #define OS_BEGIN_BRACKETos.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:529:11: error: no member named 'END_BRACKET' in 'osgDB::OutputStream' os OS_END_BRACKET std::endl; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:35:36: note: expanded from macro 'OS_END_BRACKET' #define OS_END_BRACKET os.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:539:42: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' unsigned int size = 0; is size IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:545:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:552:19: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os size OS_BEGIN_BRACKET std::endl; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:34:36: note: expanded from macro 'OS_BEGIN_BRACKET' #define OS_BEGIN_BRACKETos.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:558:11: error: no member named 'END_BRACKET' in 'osgDB::OutputStream' os OS_END_BRACKET std::endl; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:35:36: note: expanded from macro 'OS_END_BRACKET' #define OS_END_BRACKET os.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:571:11: error: no member named 'BEGIN_BRACKET' in 'osgDB::InputStream' is IS_BEGIN_BRACKET; ^~~~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:32:36: note: expanded from macro 'IS_BEGIN_BRACKET' #define IS_BEGIN_BRACKETis.BEGIN_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:577:11: error: no member named 'END_BRACKET' in 'osgDB::InputStream' is IS_END_BRACKET; ^~ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:33:36: note: expanded from macro 'IS_END_BRACKET' #define IS_END_BRACKET is.END_BRACKET ~~ ^ /users/tony/source/VirtualPlanetBuilder/src/vpb/BuildOptionsIO.cpp:586:11: error: no member named 'BEGIN_BRACKET' in 'osgDB::OutputStream' os OS_BEGIN_BRACKET
Re: [osg-users] slave camera using rtt texture
Hi Daniel, I'm rather lost with exactly what you want to do and the code you've used. It's probably most productive to just point you in the direction of code that probably does something similar to what you are after. The osgdistortion example is probably a good place to start - this renders the main view to a texture, then renders a camera to the main window using the texture rendering from the first camera. Robert. On 16 November 2012 14:57, Daniel Schmid daniel.sch...@swiss-simtec.chwrote: Hi all ** ** I have a composite viewer, where the main camera renders to texture. No I added a slave camera (POST_RENDER that uses the same graphics context as the main camera). I had a screen quad child on which I would like to render the texture from the main camera. But all I get is a black screen. ** ** Regards Daniel ** ** [code] osg::Camera* camera = new osg::Camera; ** ** // set the projection matrix camera-setProjectionMatrix(osg::Matrix::ortho2D(0,1920,0,1200)); ** ** // set the view matrix camera-setReferenceFrame(osg::Transform::ABSOLUTE_RF); camera-setViewMatrix(osg::Matrix::identity()); ** ** // only clear the depth buffer camera-setClearMask(0); ** ** // draw subgraph after main camera view. camera-setRenderOrder(osg::Camera::POST_RENDER); ** ** //GLenum buffer = traits-doubleBuffer ? GL_BACK : GL_FRONT; camera-setDrawBuffer(GL_BACK); camera-setReadBuffer(GL_BACK); ** ** ** ** // we don't want the camera to grab event focus from the viewers main camera(s). camera-setAllowEventFocus(false); ** ** ** ** camera-setGraphicsContext(a_viewer-getCamera()-getGraphicsContext());** ** camera-setViewport(a_viewer-getCamera()-getViewport()); ** ** camera-addChild( createScreenQuad(1.0f, 1.0f) ); ** ** osg::Camera::BufferAttachmentMap map = a_viewer-getCamera()-getBufferAttachmentMap(); osg::Texture* input = map[osg::Camera::COLOR_BUFFER0]._texture.get();* *** camera-getOrCreateStateSet()-setTextureAttributeAndModes(0, input);* *** ** ** a_viewer-addSlave(camera, false); [/code] ** ** ___ 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] Cannot set custom shader for a node
Hi Michael, It's probably a bit premature to use the OSG's shader composition work, you could try and use but it's very much bleeding edge. For non experimental work I would recommend using the standard osg::Program/osg::Shader/osg::Uniform functionality. See the osgshader example for inspiration. Robert. On 16 November 2012 13:42, michael kapelko korn...@gmail.com wrote: Hi. I'm using SoftShadowMap scene and I want to assign custom shader to one of the nodes, but it doesn't work. I do it like that: osg::ref_ptrosg::Shader frag = new osg::Shader(osg::Shader::FRAGMENT, code); osg::StateSet *ss = box-getOrCreateStateSet(); osg::ShaderAttribute *sa = new osg::ShaderAttribute; sa-setType(osg::StateAttribute::FRAGMENTPROGRAM); ss-setAttribute(sa); sa-addShader(frag.get()); The complete code is here: http://pastie.org/5387472 As seen from the code, I tried to enable shader composition, but that didn't help me. Am I doing it wrong? ___ 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] LineSegmentIntersector gives incorrect results (intersections missing)
Hello Robert. I digged a bit into the OSG source code and I found out that its a precision problem. I use big models where the vertex coordinate values are 1000. I don't know the exact process of the intersection search, but I assume that the lineSegment is clipped in the lineSegmentIntersector.cpp Code: bool LineSegmentIntersector::intersectAndClip(osg::Vec3d s, osg::Vec3d e,const osg::BoundingBox bbInput) function to the values, where the lineSegment is slightly longer, than the bounding sphere of the geometry. Code: osg::Vec3d bb_min(bbInput._min); osg::Vec3d bb_max(bbInput._max); #if 1 double epsilon = 1e-4; bb_min.x() -= epsilon; bb_min.y() -= epsilon; bb_min.z() -= epsilon; bb_max.x() += epsilon; bb_max.y() += epsilon; bb_max.z() += epsilon; #endif There is an epsilon value, which is currently set to 1e-4. I would suggest to set it bigger (1e-2 f. ex.). If I change it to 1e-2, I don't get this problem anymore. What is the exact reason of lineSegment clipping? Thank you! Cheers, Peter Code: -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51119#51119 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Change uniform array size
Hello. I try to create an algorithm which uses a configurable number of samples: uniform vec3 sample_kernel[256]; When i use value higher than 502, i get some errors which probably refer to my GPU (gtx 650). It seems gl_MaxFragmentUniformComponents is 2048. I try to use glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, value); but i dont get the correct value. In case I use a fixed size of samples and just pass as uniform the number of samplesi want to be checked, won't it affect the performance ? I mean having a large array of samples while i need the half. Thank you for your time. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Are shaders not saved during osgDB::writeNodeFile?
Hi. I've attached custom shader for a node in a ShadowedScene. I then called osgDB::writeNodeFile upon it and found out that it doesn't save those shaders into osg file. Is it so by design or am I doing it wrong? PS: Source code: http://pastie.org/5390724 Source code archive: https://dl.dropbox.com/u/12634473/osg/shader_not_saved.tar.bz2 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Ideas about a resource system, and deferred rendering framework
What's the progress on this? And is there any open repository? 2012/9/17 Jeremy Moles cubic...@gmail.com On Tue, 2012-09-11 at 10:54 +0800, Wang Rui wrote: Hi Jeremy, Thanks for the tests and feedback. I'm focusing on creating a material system which may be a little similar to the Ogre one but will be very easy to integrate with OSG scenes. I'd like to also have a benchmark including a complete deferred shading pipeline in the near future to show others how OSG produces realistic worlds. :-) Your requirement could be easiliy implemented with one forward pass rendering the scene to a texture, and two deferred passes doing the blur work with the texture as input. A final compositing pass will make use of the outputs of the blur passes and output to a new texture. You can get and use the new texture then in the scene for your own purpose instead of direct displaying them on screen. I'd like to upload a DOF effect file and an updated example some days later to demonstrate how these work. Hi Wang, Did you ever get a chance to work up an example showing something like this? I've been trying to get it to work using a modified blur-x/blur-y approach from osgPPU, but have had no success. Thanks, Wang Rui 2012/9/11 Jeremy Moles cubic...@gmail.com: On Mon, 2012-09-10 at 22:57 +0800, Wang Rui wrote: This looks really cool so far. I'd be really interested to know if it supports the following (and would be willing to create examples if you're willing to help)... Scenario: I want to render an entire subgraph to an FBO texture once, then apply 2 or more completely different shaders in some order, then put the final result into a last texture to be used somewhere in the scene. I'm doing a guassian blur, which typically applies two different shaders for x and y. I have this working in osgPPU, but I think you already have enough to do it here, I just couldn't put the pieces together. :) ___ 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] Ideas about a resource system, and deferred rendering framework
Hi Michael, Current implementation is maintained in osgRecipes ( https://github.com/xarray/osgRecipes), and some snapshots are shared in the mail-list a few days ago using both VDSM and the compositor. Wang Rui 2012/11/17 michael kapelko korn...@gmail.com What's the progress on this? And is there any open repository? 2012/9/17 Jeremy Moles cubic...@gmail.com On Tue, 2012-09-11 at 10:54 +0800, Wang Rui wrote: Hi Jeremy, Thanks for the tests and feedback. I'm focusing on creating a material system which may be a little similar to the Ogre one but will be very easy to integrate with OSG scenes. I'd like to also have a benchmark including a complete deferred shading pipeline in the near future to show others how OSG produces realistic worlds. :-) Your requirement could be easiliy implemented with one forward pass rendering the scene to a texture, and two deferred passes doing the blur work with the texture as input. A final compositing pass will make use of the outputs of the blur passes and output to a new texture. You can get and use the new texture then in the scene for your own purpose instead of direct displaying them on screen. I'd like to upload a DOF effect file and an updated example some days later to demonstrate how these work. Hi Wang, Did you ever get a chance to work up an example showing something like this? I've been trying to get it to work using a modified blur-x/blur-y approach from osgPPU, but have had no success. Thanks, Wang Rui 2012/9/11 Jeremy Moles cubic...@gmail.com: On Mon, 2012-09-10 at 22:57 +0800, Wang Rui wrote: This looks really cool so far. I'd be really interested to know if it supports the following (and would be willing to create examples if you're willing to help)... Scenario: I want to render an entire subgraph to an FBO texture once, then apply 2 or more completely different shaders in some order, then put the final result into a last texture to be used somewhere in the scene. I'm doing a guassian blur, which typically applies two different shaders for x and y. I have this working in osgPPU, but I think you already have enough to do it here, I just couldn't put the pieces together. :) ___ 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 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Why to use Shaders to render model in Android with OpenGLES2
Hi,
I completed osgAndroid Example with GLES1 successfully. If I try to run the
same example with OpenGLES2 then the OSG model is not rendering. If I add the
following code then I am able to see the model on my device.
Code:
mtForMarker[idx]=new osg::MatrixTransform();
osg::Shader * vshader = new osg::Shader(osg::Shader::VERTEX,
gVertexShader );
osg::Shader * fshader = new osg::Shader(osg::Shader::FRAGMENT,
gFragmentShader );
osg::Program * prog = new osg::Program;
prog-addShader ( vshader );
prog-addShader ( fshader );
mtForMarker[idx]-getOrCreateStateSet()-setAttribute ( prog );
mtForMarker[idx]-addChild(loadedModel[idx].get());
modelSwitch-addChild(mtForMarker[idx].get());
osgViewer::Viewer::Windows windows;
_viewer-getWindows(windows);
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();itr !=
windows.end();++itr)
{
(*itr)-getState()-setUseModelViewAndProjectionUniforms(true);
(*itr)-getState()-setUseVertexAttributeAliasing(true);
}
This code I added from osgAndroidOpenGLES2 example.
As I am new to OSG I have two doubts
1) Why should I add the shaders in OpenGLES2 to display model.Can't I display
the model with out this Shaders code. OpenGLES1 example doesn’t have this
shaders.
2) If I add the shaders then the fixed functionalities like textures, lighting
etc. were disabled. But I need to enable them because I got model from 3DS MAX.
How can I enable fixed functionalities?
Can you please guide me how to enable fixed functionalities? If shaders are
necessary to render model on Android with OpenGLES2 then how can I handle
textures (or any others fixed functionalities) ? Is there any tutorial to
handle this in Android?
NOTE:- By mistake i posted the same under Build System category.
...
Thank you!
Cheers,
Koduri
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=51130#51130
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Re: [osg-users] Why to use Shaders to render model in Android with OpenGLES2
I completed osgAndroid Example with GLES1 successfully. If I try to run the same example with OpenGLES2 then the OSG model is not rendering. If I add the following code then I am able to see the model on my device. This is normal. 1) Why should I add the shaders in OpenGLES2 to display model.Can't I display the model with out this Shaders code. OpenGLES1 example doesn’t have this shaders. No. OpenGL ES2 is not like regular OpenGL. ES2 does NOT have the fixed functionality available that ES1 has. You can have shaders OR fixed function, but not both. 2) If I add the shaders then the fixed functionalities like textures, lighting etc. were disabled. But I need to enable them because I got model from 3DS MAX. How can I enable fixed functionalities? You can not. You need to write shaders that provide that same functionality. Can you please guide me how to enable fixed functionalities? If shaders are necessary to render model on Android with OpenGLES2 then how can I handle textures (or any others fixed functionalities) ? Is there any tutorial to handle this in Android? One way to do this is to use a shader generator to create a shader to implement some of the fixed function capability in a shader. OSG has a ShaderGen tool, but it's somewhat out of date with regard to OpenGL ES2. We've been using an updated version of it, but it's not in core OSG yet. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Digital Imaging • GIS • GPS • Telemetry • Cryptography • Digital Audio • LIDAR • Kinect • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel https://twitter.com/alphapixel facebook.com/alphapixel ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
