Re: [osg-users] [osgPlugins] osgDB::readImageFile() chooses ffmpeg over libpng
Hi Paul, This sounds like a bug, the ffmpeg plugin should not attempt to load a png file. What exactly happens? As for changing the order, simple pre load the png plugin as this will ensure it gets called first thanks to the Chain-Of-Responsibility pattern used by it. Robert On 10 May 2015 at 23:49, Paul aquawic...@hotmail.com wrote: OSG-3.3.7 both plugins osgdb_png and osgdb_ffmpeg loaded. osgDB::readImageFile(image.png) chooses ffmpeg over libpng to load .png image files. I checked ReaderWriterFFmpeg.cpp, and it does not add the .png extention. How do I give libpng priority on .png files. Thanks :) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63688#63688 ___ 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] Forcing a scene to rebind textures
Hi Philippe, On 10 May 2015 at 22:24, Philippe Renon philippe_re...@yahoo.fr wrote: As a matter of fact I have a GraphicsContext managed by osg. And it properly gets destroyed. I later create a new View and set on it the scene data that was previously set on the other view (which is now discarded). I then see the errors below and get crashes. Please note that this does not happen on simple scenes but on scenes containing osgearth maps. There is something I am not doing properly when destorying the 1s view which leaves the scene in a bad state. Question is to find what is wrong with the scene. Is there any chance your application is caching a subgraph that isn't attached to the view/contexts that are destroyed so are effectively hidden by the releaseGLObjects() operation? If you re-attach such a subgraph to a new context it's handles to GL objects will all still be there but won't be valid. If you do cache subgraphs in this way then you need to call rootnode-releaseGLObjects(); on it prior to deleting the context, or call releaseGLObjectse() afterwards then osg::discardAllGLObjects(); Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] qt plots over viewer
Hi All,
I tried several solutions but I didn't find a full working solution yet.
Here is a piece of code that shows and is able to update the image of a qt
widget but I'm not able to make the move and resize working.
Code:
void MyViewer::addOverlay(QWidget* iWidget)
{
osgWidget::Window* osgwindow = new osgWidget::Canvas;
osgwindow-attachMoveCallback();
osgwindow-attachScaleCallback();
osgwindow-setVisibilityMode(osgWidget::Window::VM_ENTIRE);
osgwindow-getBackground()-setColor(osg::Vec4(1, 1, 1, 0.5));
osg::ref_ptrosgQt::QWidgetImage widgetImage = new
osgQt::QWidgetImage(iWidget);
widgetImage-getQGraphicsViewAdapter()-setBackgroundColor(QColor(0xff,
0xff, 0xff, 0x80));
osg::Geometry* quad = osg::createTexturedQuadGeometry(osg::Vec3(0,0,0),
osg::Vec3(1,0,0), osg::Vec3(0,1,0), 1, 1);
osg::Geode* geode = new osg::Geode;
geode-addDrawable(quad);
osg::Texture2D* texture = new osg::Texture2D(widgetImage.get());
texture-setResizeNonPowerOfTwoHint(false);
texture-setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
texture-setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
texture-setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
osg::Camera* camera = new osg::Camera;
camera-setProjectionResizePolicy(osg::Camera::FIXED);
camera-setProjectionMatrix(osg::Matrix::ortho2D(0,1,0,1));
camera-setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera-setViewMatrix(osg::Matrix::identity());
camera-setClearMask(GL_DEPTH_BUFFER_BIT);
camera-setRenderOrder(osg::Camera::POST_RENDER);
camera-addChild(geode);
camera-setViewport(0, 0, 512, 384);
osgwindow-getOrCreateStateSet()-setTextureAttributeAndModes(0, texture,
osg::StateAttribute::ON);
osgwindow-getOrCreateStateSet()-setMode(GL_LIGHTING,
osg::StateAttribute::OFF);
osgwindow-getOrCreateStateSet()-setMode(GL_BLEND, osg::StateAttribute::ON);
osgwindow-getOrCreateStateSet()-setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
osgwindow-getOrCreateStateSet()-setAttribute(new osg::Program);
osgwindow-addChild(camera);
osgViewer::InteractiveImageHandler* handler = new
osgViewer::InteractiveImageHandler(widgetImage.get(), texture, camera);
quad-setEventCallback(handler);
quad-setCullCallback(handler);
windowManager-addChild(osgwindow);
}
Can anybody explain me please why
osgwindow-attachMoveCallback();
osgwindow-attachScaleCallback();
do not work?
I can discard that and derive my own InteractiveImageHandler but first of all
that's not what I did for other 3D widgets where I used a drawable as child
of an osgwindow's geode and move/scale works correctly.
On the other side I would like to know which is the proper way to show a qt
widget in a 3D viewer so that its image can be updated but also its rectangle
moved and scaled.
Regards,
Gianni
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Re: [osg-users] [forum] Huge delays while mouse clicking with many draggers in scene
Dear all, I agree with Robert that the whole scene has to be tested to avoid picking obscured draggers. But this will not be a real computational burden if it would happen only once for every new event. As long as it is not redone for every dragger again. I am aware that the original dragger code was made by others. And our current workaround works fine for us. We do not need an immediate fix. The main reason to post it on the forum is to signal that the problem exists and to share our findings with others that may search for an explanation or a solution. Best regards, Jaap Glas -- dr Jaap C. Glas -- Software Engineer -- dGB Earth Sciences -- Phone: +31 53 4315155 -- Email: -- Internet: dgbes.com opendtect.org robertosfield wrote: Hi Jaap, The whole scene is tested so that obscured dragger don't get picked unintentionally. Each dragger doing the same intersection traversal is inefficient though, athough as I'm not the original author of osgManipulator I'd had to do a code review to look at all the possibilities and consequences. I'm current deep in another complex part of the OSG so don't have the spare brain capacity or time to do a review right away. Cheers, Robert. On 6 May 2015 at 17:49, Jaap Glas wrote: Dear all, I am an employee of dGB Earth Sciences, and we use OpenSceneGraph for the 3D visualization of our open-source seismic interpretation package OpendTect. Our scenes may sometimes contain hundreds to thousands of draggers, mostly Translate(1D/2D)Draggers. We found that mouse clicking in the scene becomes very slow in that case. It turns out that every OSG dragger tries to intersect the line from camera eye to mouse position with all objects in the scene in order to produce its private list of intersections: [osgManipulator/Dragger.cpp:371] if ( view-computeIntersections(ea ,intersections,_intersectionMask) ) My question is whether this is really necessary? I don't see (yet) why this list cannot be calculated only once and shared by all OSG draggers. Or alternatively, only calculated for draggers that are located under the mouse pointer. Our current workaround consists of derived dragger classes that overload the Dragger::traverse(.) function to test this latter alternative in advance, passing the current node path as an extra parameter: if ( !view-computeIntersections(*ea,nv.getNodePath(),intersections, _intersectionMask) ) continue; This reduces the computational order of mouse clicking from quadratic to linear with the number of draggers in the scene. And mouse clicking in the scene can be done again without huge delay. However, the question is whether such a shortcut would apply in the general case. Why is the osgManipulator::Dragger class doing this the way it does? Best regards, Jaap Glas -- dr Jaap C. Glas -- Software Engineer -- dGB Earth Sciences -- Phone: +31 53 435155 -- Email: -- Internet: dgbes.com opendtect.org -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63651#63651 ___ osg-users mailing list http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Post generated by Mail2Forum -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63699#63699 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [GL ES2] Add slave camera
Hi everyone, Is it possible to add a slave camera in an embedded viewer? I am trying to perform render-to-texture in multiple cameras simultaneously and everything works fine until I try to add a slave camera on the viewer. Here is the context (simplified): Code: // Create an X11/EGL display/context ... // Create a viewer viewer = new osgViewer::Viewer(); osg::ref_ptrosgViewer::GraphicsWindow graphics_window = viewer-setUpViewerAsEmbeddedInWindow(0, 0, 640, 480); // Create a texture texture = new osg::Texture2D; texture-setTextureSize(640, 480); texture-setInternalFormat(GL_RGBA); texture-setSourceFormat(GL_RGBA); texture-setSourceType(GL_FLOAT); texture-setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR); texture-setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR); texture-setWrap(osg::Texture2D::WRAP_S, osg::Texture2D::CLAMP_TO_EDGE); texture-setWrap(osg::Texture2D::WRAP_T, osg::Texture2D::CLAMP_TO_EDGE); // Create a camera camera = new osg::Camera; camera-setViewport(0, 0, texture-getTextureWidth(), texture-getTextureHeight()); camera-setClearColor(osg::Vec4(1.0f, 1.0f, 1.0f, 0.0f)); camera-setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); camera-setRenderOrder(osg::Camera::PRE_RENDER); camera-setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); camera-setReferenceFrame(osg::Camera::ABSOLUTE_RF); // Attach texture to camera camera-attach(osg::Camera::COLOR_BUFFER, texture); // Bind the texture object osg::State state = *graphics_window-getState(); texture-apply(state); // Load the camera viewer-addSlave(camera-get()); The last call fails with the message: free(): invalid pointer Am I missing something? Thank you! Cheers, Jean -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63701#63701 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Light/Material flickering
Hi, On Mon, May 11, 2015 at 4:03 PM, João joao.henrique.pi...@hotmail.com wrote: I'm currently loading .osg models to a scene, and I'm experiencing some inconsistencies when it comes to texturing and lighting in those models. I'm not sure, but did you try enabling the GL_RESCALE_NORMAL attribute for the state sets of the objects? It's also mentioned in the FAQ. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Light/Material flickering
Neither GL_RESCALE_NORMAL or GL_NORMALIZE resolved the situation. Date: Mon, 11 May 2015 16:09:56 +0300 From: sgu...@350.su To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] Light/Material flickering Hi, On Mon, May 11, 2015 at 4:03 PM, João joao.henrique.pi...@hotmail.com wrote: I'm currently loading .osg models to a scene, and I'm experiencing some inconsistencies when it comes to texturing and lighting in those models. I'm not sure, but did you try enabling the GL_RESCALE_NORMAL attribute for the state sets of the objects? It's also mentioned in the FAQ. ___ 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] serializer,custom node with custom nodecallback
Hi,
I want to implement a custom node with a custom nodecallback by serializer.
I have read a chapter of serializer in OpenSceneGraph 3.0 Beginner's Guide and
this webpage -
http://trac.openscenegraph.org/projects/osg//wiki/Support/KnowledgeBase/SerializationSupport
I know how to implement a custom node now.
But I am somewhat confused about how to implement custom node with a custom
nodecallback.
I can do it with Custom Serializers now.
Code:
namespace test {
class CustomNode : public osg::Group
{
public:
CustomNode() : osg::Group(), _exampleID(0) {}
CustomNode(const CustomNode copy,const osg::CopyOp
copyop=osg::CopyOp::SHALLOW_COPY)
: osg::Group(copy, copyop), _exampleID(copy._exampleID)
{}
META_Node(test, CustomNode)
void setExampleID( unsigned int id ) { _exampleID = id;
}
unsigned int getExampleID() const { return _exampleID; }
protected:
unsigned int _exampleID;
};
}
class CustomNodeCallBack : public osg::NodeCallback
{
virtual void operator()( osg::Node* node, osg::NodeVisitor* nv )
{
printf (custom node call back.\n);
}
};
static bool checkCustomCallBack( const test::CustomNode node )
{
return true;
}
static bool writeCustomCallBack( osgDB::OutputStream os, const
test::CustomNode node )
{
return true;
}
static bool readCustomCallBack( osgDB::InputStream is, test::CustomNode node )
{
node.addUpdateCallback( new CustomNodeCallBack );
return true;
}
REGISTER_OBJECT_WRAPPER( CustomNode_Wrapper,
new test::CustomNode,
test::CustomNode,
osg::Object osg::Node
osg::Group test::CustomNode )
{
ADD_UINT_SERIALIZER( ExampleID, 0 );
ADD_USER_SERIALIZER( CustomCallBack );
}
I think maybe I can also do this without Custom Serializers.
Which means I think I can implement a node serializer and a nodecallback
serializer, then add the callback to the node.
the code may look like this
Code:
namespace test {
class CustomNodeCallBack : public osg::NodeCallback
{
public:
..
META_NodeCallBack(test, CustomNode)
..
};
}
REGISTER_OBJECT_WRAPPER( CustomNodeCallBack_Wrapper,
new test::CustomNodeCallBack,
test::CustomNodeCallBack,
osg::Object osg::NodeCallBack
test::CustomNodeCallBack )
{
..
}
namespace test {
class CustomNode : public osg::Group
{
public:
..
META_Node(test, CustomNode)
..
};
}
REGISTER_OBJECT_WRAPPER( CustomNode_Wrapper,
new test::CustomNode,
test::CustomNode,
osg::Object osg::Node
osg::Group test::CustomNode )
{
ADD_OBJECT_SERIALIZER( UpdateCallback, test::CustomNodeCallBack , NULL)
}
But I do not know how to implement a nodecallback serializer. There is
META_Node for node serializer, but there is nothing named META_NodeCallBack.
I want to know how to implement a nodecallback serializer.
Or If there are other ways to make a custom node with a custom nodecallback.
Thank you!
Cheers,
Xia[/code]
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[osg-users] Texture Mapping Meeting Point Shadow
Hello all! I'm having trouble with image texture mapping a geode. Specifically, where the top and the bottom of the image meet, there is a dark shadow effect that I want to avoid. I've created the simplest example of how I'm attempting the texture mapping and I've taken screenshots that show the unwanted shadow (please see the attached screenshots and the overlay image itself). Below is the code I'm using. As you can see, it's very simple: just four quadrangle faces that form four sides of an open-ended box. I've attempted to map the overlay image around the entire box so that the top and bottom meet at one of the four edges. Does anyone have any idea what I'm doing wrong or how I can modify my code to get rid of the shadow effect? Thanks a bunch in advance! Code: // Create the new geode node osg::ref_ptr osg::Geode pGeode = new osg::Geode; // Create the single new geometry osg::ref_ptr osg::Geometry pGeometry = new osg::Geometry; // The vertex array to define the geometry shape osg::ref_ptr osg::Vec3Array pVertices = new osg::Vec3Array; // Add face 1/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(10.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(0.0f, 5.0f, 5.0f)); // Add face 2/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(0.0f, 0.0f, 10.0f)); // Add face 3/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(10.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(0.0f, -5.0f, 5.0f)); // Add face 4/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(0.0f, 0.0f, 0.0f)); // Set the vertex array on the geometry pGeometry-setVertexArray(pVertices); // Create the geometry's color array osg::ref_ptr osg::Vec4Array pColors = new osg::Vec4Array; pColors-push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f)); // Set the color array on the geometry pGeometry-setColorArray(pColors); pGeometry-setColorBinding(osg::Geometry::BIND_OVERALL); // Set the quad draw array on the geometry osg::ref_ptr osg::DrawArrays pDrawArrays = new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0, static_cast GLsizei (pVertices-size())); pGeometry-addPrimitiveSet(pDrawArrays); // Load the overlay image osg::ref_ptr osg::Image pImage = osgDB::readImageFile(overlay.png); // Create the image texture osg::ref_ptr osg::Texture2D pTexture = new osg::Texture2D(pImage); // Create the texture coordinates array osg::ref_ptr osg::Vec2Array pTexCoords = new osg::Vec2Array; // Set face 1/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.0f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.0f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.25f)); // Set face 2/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.50f)); // Set 3/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.75f)); // Set 4/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(1.0f, 1.0f)); pTexCoords-push_back(osg::Vec2(0.0f, 1.0f)); // Set the geometry's texture coordinates array pGeometry-setTexCoordArray(0, pTexCoords); // Get the geometry's stateset osg::ref_ptr osg::StateSet pStateSet = pGeometry-getOrCreateStateSet(); // Set the texture on the stateset pStateSet-setTextureAttributeAndModes(0, pTexture, osg::StateAttribute::ON); // Set the geometry's stateset pGeometry-setStateSet(pStateSet); // Add the single drawable to the geode node pGeode-addDrawable(pGeometry); // Add this new geode to the scene pTopGroupNode-addChild(pGeode); Cheers, Erik -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63711#63711 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Forcing a scene to rebind textures
robertosfield wrote:
Hi Philippe,
Is there any chance your application is caching a subgraph that isn't
attached to the view/contexts that are destroyed so are effectively
hidden by the releaseGLObjects() operation? If you re-attach such a
subgraph to a new context it's handles to GL objects will all still be
there but won't be valid.
If you do cache subgraphs in this way then you need to call
rootnode-releaseGLObjects(); on it prior to deleting the context, or
call releaseGLObjectse() afterwards then osg::discardAllGLObjects();
Thank Robert,
I think you are pointing me in the right direction.
By caching do you mean such a scenario:
1- realize and render a scene
2- detach a subgraph
3- remove View / close the GraphicsContext
4- create a new View with some scene and reattach the subgraph from step 2
Note that in my scenario (i.e. creating/detroying the same view+scene
multiple times) the CompositeViewer itself remains the same. Views get added
and removed but there is only one View at any time in that viewer (so I
probably should not use CompositeViewer but I don't think it is relevant and I
might need it in the future).
PS : Just tried to do the suggested cleanups after creating the view.
Code looks like this
Code:
viewer-addView(view);
// needed when adding a view a 2nd time (osg will not realize the viewer
again...)
if (!viewer-isRealized()) {
viewer-realize();
}
view-releaseGLObjects();
unsigned int contextID =
view-getCamera()-getGraphicsContext()-getState()-getContextID();
osg::discardAllGLObjects(contextID);
But I still get the invalid enumerant error followed by a crash.
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Re: [osg-users] Google and Authoritative Distributor of Open Source Software (OSG)?
Wow, sounds like they are lumping you in with all the bad apples who try and trick people into paying for free software. They've never gotten on my case for my own OSG-related ads, but that might be because I don't offer OSG for download, just SDK's that depend on OSG. The same would hopefully also be true for osgVisual, should they want to run AdWords campaigns. Completing that form would require certifying that Osfield blessed Alpha Pixel as the sole authorized distributor of OSG. My opinion is that the only way out of this would be to host your OSG binary downloads from openscenegraph.org somehow accompanied by a link back to Alpha Pixel, or perhaps from some other domain that you're not linking ads to. But now that they've flagged you, that might not be enough. That really sucks. FWIW I find the quality of AdWords traffic to be pretty suspect anyhow. Maybe you could could use this as an opportunity to see if losing AdWords traffic actually impacts your business. -- Frank Kane Founder, Sundog Software http://www.sundog-soft.com The SilverLining Sky, 3D Cloud, and Weather SDK The Triton Ocean SDK -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63717#63717 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Forcing a scene to rebind textures
Hi filnet, Code looks like this But I still get the invalid enumerant error followed by a crash. there is one missing step in your code - you said you have a detached subgraph. The OSG does not hold any pointers to detached subgraphs, so it can't do the cleanup on its own. Only your application knows where those subgraphs are stored. So instead of Code: view-releaseGLObjects(); You need to Code: for all detached subgraphs: node-releaseGLObjects(); View::releaseGLObjects can only release objects that are currently attached to the root scene graph. Cheers, Jannik[/quote][/code] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63716#63716 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture Mapping Meeting Point Shadow
Hi Erik, That looks like a texture wrap issue. Try setting your texture wrap mode to CLAMP_TO_EDGE: pTexture-setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); pTexture-setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); Cheers, Farshid On Mon, May 11, 2015 at 12:39 PM, Erik Hensens ehens...@hunter.com wrote: Hello all! I'm having trouble with image texture mapping a geode. Specifically, where the top and the bottom of the image meet, there is a dark shadow effect that I want to avoid. I've created the simplest example of how I'm attempting the texture mapping and I've taken screenshots that show the unwanted shadow (please see the attached screenshots and the overlay image itself). Below is the code I'm using. As you can see, it's very simple: just four quadrangle faces that form four sides of an open-ended box. I've attempted to map the overlay image around the entire box so that the top and bottom meet at one of the four edges. Does anyone have any idea what I'm doing wrong or how I can modify my code to get rid of the shadow effect? Thanks a bunch in advance! Code: // Create the new geode node osg::ref_ptr osg::Geode pGeode = new osg::Geode; // Create the single new geometry osg::ref_ptr osg::Geometry pGeometry = new osg::Geometry; // The vertex array to define the geometry shape osg::ref_ptr osg::Vec3Array pVertices = new osg::Vec3Array; // Add face 1/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(10.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(0.0f, 5.0f, 5.0f)); // Add face 2/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(0.0f, 0.0f, 10.0f)); // Add face 3/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 10.0f)); pVertices-push_back(osg::Vec3(10.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(0.0f, -5.0f, 5.0f)); // Add face 4/4 quad vertices pVertices-push_back(osg::Vec3(0.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, -5.0f, 5.0f)); pVertices-push_back(osg::Vec3(10.0f, 0.0f, 0.0f)); pVertices-push_back(osg::Vec3(0.0f, 0.0f, 0.0f)); // Set the vertex array on the geometry pGeometry-setVertexArray(pVertices); // Create the geometry's color array osg::ref_ptr osg::Vec4Array pColors = new osg::Vec4Array; pColors-push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f)); // Set the color array on the geometry pGeometry-setColorArray(pColors); pGeometry-setColorBinding(osg::Geometry::BIND_OVERALL); // Set the quad draw array on the geometry osg::ref_ptr osg::DrawArrays pDrawArrays = new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0, static_cast GLsizei (pVertices-size())); pGeometry-addPrimitiveSet(pDrawArrays); // Load the overlay image osg::ref_ptr osg::Image pImage = osgDB::readImageFile(overlay.png); // Create the image texture osg::ref_ptr osg::Texture2D pTexture = new osg::Texture2D(pImage); // Create the texture coordinates array osg::ref_ptr osg::Vec2Array pTexCoords = new osg::Vec2Array; // Set face 1/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.0f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.0f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.25f)); // Set face 2/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.25f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.50f)); // Set 3/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.50f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(0.0f, 0.75f)); // Set 4/4 quad texture overlay coordinates pTexCoords-push_back(osg::Vec2(0.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(1.0f, 0.75f)); pTexCoords-push_back(osg::Vec2(1.0f, 1.0f)); pTexCoords-push_back(osg::Vec2(0.0f, 1.0f)); // Set the geometry's texture coordinates array pGeometry-setTexCoordArray(0, pTexCoords); // Get the geometry's stateset osg::ref_ptr osg::StateSet pStateSet = pGeometry-getOrCreateStateSet(); // Set the texture on the stateset pStateSet-setTextureAttributeAndModes(0, pTexture, osg::StateAttribute::ON); // Set the geometry's stateset pGeometry-setStateSet(pStateSet); // Add the single drawable to the geode node pGeode-addDrawable(pGeometry); // Add this new geode to the scene pTopGroupNode-addChild(pGeode); Cheers, Erik -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63711#63711 ___ osg-users mailing list
Re: [osg-users] Texture Mapping Meeting Point Shadow
That fixed it, thank you so much! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63713#63713 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Google and Authoritative Distributor of Open Source Software (OSG)?
Has anyone else here who offers download of compiled Open Source software been hassled by Google? My Google Ads for AlphaPixel's OSG consulting services (a major part of my business) have been suspended for the following: after a discussion with our policy team, it looks like your site was correctly disabled for our Free Desktop Software policy, which you can find here http://t.signauxsix.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJW7t5XYg1pNd6vW8pTkCF2B8p26Vd76_W56dMzddZXz2n02?si=6460970642178048pi=4A19AD92-5A3E-4F9C-8500-58F2D19BDC2Ft=https%3A%2F%2Fsupport%2Egoogle%2Ecom%2Fadwordspolicy%2Fanswer%2F6023676%23uc. What they are specifically talking about is this page on your site alphapixel.com http://t.signauxsix.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJW7t5XYg1pNd6vW8pTkCF2B8p26Vd76_W56dMzddZXz2n02?si=6460970642178048pi=4A19AD92-5A3E-4F9C-8500-58F2D19BDC2Ft=http%3A%2F%2Falphapixel%2Ecom. What they are telling me is that for the software found on that page you must register as the authoritative distributor of that software through this form here http://t.signauxsix.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJW7t5XYg1pNd6vW8pTkCF2B8p26Vd76_W56dMzddZXz2n02?si=6460970642178048pi=4A19AD92-5A3E-4F9C-8500-58F2D19BDC2Ft=https%3A%2F%2Fsupport%2Egoogle%2Ecom%2Fadwordspolicy%2Fcontact%2Fadvertise%5Fsoftware%5Fpol. After submitting the form, the policy team will review your site within 1-2 weeks and if they confirm that you are the main distributors of this software and they will approve the site without any further escalation from me. I know this isnt the most ideal answer you were looking for, but I have pushed back immensely and have done all I can but they are standing firmly. At this time, I think the only option would be to go through the from process. Please let me know if you have any questions on this matter. So, it doesn't seem to me to be sensible to require we register as THE authoritative software distribution site. This would presumably exclude others such as Torben ( http://www.osgvisual.org/projects/osgvisual/wiki/Downloads ) which is not ok. It seems to me like Google somehow, doesn't even GET the idea of Open Source, at least as it applies to binary downloads. Has anyone encountered this issue? -- 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 Legal/IP • Code Forensics • Digital Imaging • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel https://twitter.com/alphapixel facebook.com/alphapixel (775) 623-PIXL [7495] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Google and Authoritative Distributor of Open Source Software (OSG)?
They've never gotten on my case for my own OSG-related ads, but that might be because I don't offer OSG for download, just SDK's that depend on OSG. Well, and those, you CAN claim to be the authoritative sole distributor for, because those SDKs are yours. I bet you'll get contacted soon about this same thing, though the issue will be easier for you to solve for the very reasons you cited. Completing that form would require certifying that Osfield blessed Alpha Pixel as the sole authorized distributor of OSG. Yeah. And I think that's absolutely silly to ask of him. My opinion is that the only way out of this would be to host your OSG binary downloads from openscenegraph.org somehow accompanied by a link back to Alpha Pixel, or perhaps from some other domain that you're not linking ads to. But now that they've flagged you, that might not be enough. Yeah. You're thinking exactly like I am. Part of the reason I offer the downloads is that I have a fast pipe on a CONUS backbone and I can afford the bandwidth for people who want to download the big files. Putting it onto OpenSceneGraph.org sort of negates most of the benefits. That really sucks. FWIW I find the quality of AdWords traffic to be pretty suspect anyhow. Maybe you could could use this as an opportunity to see if losing AdWords traffic actually impacts your business. Maybe so. I suspect I get a lot more legitimate traffic from my OSG downloads page and people who refer me (ahem, like that guy from SunDog Software -- I owe you some alcoholic beverages sometime...) than from my Ads anyway. I was just gearing up to have an SEO firm analyze my Ads and see if they were at all worth what I was paying for them. BTW, your SunDog ads are some of the prettiest I see when browsing the Internet. And I don't even need to click them to find you... ;) -- 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 Legal/IP • Code Forensics • Digital Imaging • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel https://twitter.com/alphapixel facebook.com/alphapixel (775) 623-PIXL [7495] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Forcing a scene to rebind textures
scrawl wrote: Hi filnet, there is one missing step in your code - you said you have a detached subgraph. The OSG does not hold any pointers to detached subgraphs, so it can't do the cleanup on its own. Only your application knows where those subgraphs are stored. Jannik Hi Jannik, The subgraph is supposed to be reattached before the big cleanup. I am looking in the code for such cached subgraph but can't find any. The only cached object I found is a NodeCallback that gets attached to the camera. I tried to simplify my scene to the extreme. I removed the SkyNode that was used and now I have only an osgearth map in the scene. With that change the immediate crash is gone but the enumerant error is still there. On the second use of the scene, the textures visited by zommiing around show up black. Zooming further will eventually cause new previously not shown textures to appear correctly. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63718#63718 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
