[osg-users] Texture, Materials and Effects

Hi, Is there any example that deals with simple-to-use effects, change of texture, etc, so I can make my scene a little bit more attractive? Like making drawables have a metallic appearance. Thanks, Renan M

Re: [osg-users] Texture, Materials and Effects

Thanks, Robert. I'll have a look. Renan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Camera control and view matrix

Hi, I need some references on camera control and view matrices. The tutorial in OSG's website is outdated, for it still makes use of osg::Producer. Can anyone send me a few suggestions? Thanks, Renan M Z Mendes _

Re: [osg-users] Camera control and view matrix

Robert, The page I'm talking about that still references osg::Producer is http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/CameraControl. Basically, all pages related to camera control tutorials. It even has a wiki editing note about this. Renan M Z Mendes __

Re: [osg-users] Camera control and view matrix

Hi, Robert. You've said: "As for examples of manage the view matrix, there should be examples in the archives, but in the end it all boils down to not using a CameraManipulator and instead calling on each frame: viewer.getCamera()->setViewMatrix(viewMatrix);" How do I stop using the default cam

[osg-users] Linear Systems Solvers

Hi, there. I was wondering if there were any preexisting member functions that solve linear systems of 2 and 3 variables, already considering cases of numerical instability. I could create my own method, but I would be a little insecure about these particular situations... If anyone know that,

[osg-users] Events and Key Detection

Hi, everyone. My messages have been kind of ignored these days, but I'll give it another try with a different problem: In my GUIEventHandler derived class, I'm doing the usual override of the osgGA::GUIEventHandler::handle() function. Well, I made that whole switch-case structure and I would like

Re: [osg-users] Events and Key Detection

Sorry, Robert, I think I wasn't very clear. What I meant was: when I detect a drag event, I'd like to also detect a keydown event. It would be like testing for simultaneity of events... Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscen

Re: [osg-users] Events and Key Detection

Yeah, that was the kind of approach I was thinking in the beginning. I thought there would be something else. OK, then. Thanks, Jean and Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/os

Re: [osg-users] Events and Key Detection

Thanks, Robert, that' s some useful information. Another thing: when is the handle method called exactly? My point is: If I want some other function to be called continuously, do I have to put it on the FRAME event, or if I only put it inside the handle method my objectives will be accomplished? T

Re: [osg-users] Events and Key Detection

Thanks, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

Hi, I am using these two methods: setViewMatrixAsLookAt(eye, center, up) and getViewMatrixAsLookAt(&eye, ¢er, &up) with the viewer's camera in this order and WITHOUT manipulating the camera elsewhere in my code. I don't have much experience with OSG but isn't the last method supposed to retur

Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

Thanks, Paul and Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

Now that you have explained to me how it works, maybe you could give me an idea on how to solve a small problem I have. In my application, the user can move the camera freely (all directions and eye positions), but when the camera's direction is close to a given one, it snaps into that given direc

[osg-users] Callbacks: operator() call

Hi, I'm having some trouble when using a whole lot of callbacks at the same time... Apparently it has something to do with the order that they're being called. I want to know how is it done. Are the operator()'s executed one by one in a given order or are they executed in a parallel manner?

[osg-users] Debugging using Visual Studio

Hi, Until the present date, I've been using cout's to debug my application, which is really annoying, for I didn't know how to configure Visual Studio to be able to debug running a OSG application. At one time I've read how to do it, but I lost that source... Can anyone teach me how? Thanks.

Re: [osg-users] Debugging using Visual Studio

Hi, J-S. You've said that: If you want to debug into OSG itself, you'll need to have compiled OSG with debug symbols too (i.e. in Debug configuration), and link to that. I didn't understand this... What does it mean to "debug into OSG itself"? Another remark: You can debug your application wit

Re: [osg-users] Debugging using Visual Studio

> > If you get more crashes when doing that, you'll need to be more specific > and provide for example a stack trace for us to help you find out what's > going on. I've realized I wasn't too specific... Next time I'll come with details. But thanks, anyway. Renan _

[osg-users] osg::Plane

Stupid but fast question. Just want to make sure I'm getting it right, as notations can vary and there is no explanation at the reference docs. Let's say I have an osg::Plane that can be represented as ax + by + cz + d = 0. The method asVec4() from that class gives me an osg::Vec4 object with x = a

Re: [osg-users] Pergunta

Hi, In my application, I'm trying to create a point (a small sphere) and alter its properties, like shininess and transparency. When I execute the following method, the point is created with shininess effects alright. However, no matter how much I change the values related to transparency (valu

Re: [osg-users] Pergunta

Hi, Can. The stateSet whose mode you are setting is from the drawable or the geode? And how exactly can I do that without destroying my previous settings? (geode -> getOrCreateStateSet() -> setAttributeAndModes(this->material.get(), osg::StateAttribute::ON);) Thanks again,

Re: [osg-users] osg::Plane

OK, thanks. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] osgViewer osgCool

Hi, everyone. I was looking through the examples and found an effect that can be useful to my application. It is in osgviewer osgcool, but I can't find the code neither in the examples I've download with the osg package nor at the osg website... Does anyone have it and can send it to me? Th

Re: [osg-users] osgViewer osgCool

My mistake, I thought it was an example but it is only an argument for the application. Either way, I really wanted to learn how that particular particle effect was generated... How can I do it? Thanks, Renan ___ osg-users mailing list osg-users@lists.

Re: [osg-users] osgViewer osgCool

I will look into that. Thanks J-S. Renan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] osgViewer osgCool

Thanks. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Text at fixed position on screen

Hi, everyone. I'm using the osgText::Text class to create texts that are always parallel to the screen. In addition to that, I would like to fix them at a certain position of the screen, say on given coordinates (x,y). Any suggestion on how to do it? Thanks,

Re: [osg-users] Text at fixed position on screen

Hi, Dusten. I've looked at the osgtext example, but I couldn't figure out one thing (perhaps because I didn't know what to look for). There is one piece of text that says: text->setFontResolution(10,10); // blocky but small texture memory usage and it is displayed on the top left corner. No matter

Re: [osg-users] Text at fixed position on screen

> > What you need are multiple cameras. One moves when navigating in the scene, > the other doesn´t. This is done in osgHud. > > But why does it work on osgText? I'm not sure I understand. Renan ___ osg-users mailing list osg-users@lists.openscenegraph.

Re: [osg-users] Text at fixed position on screen

It works. Thank you Sukender and Andreas. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Creating window

Hi, I'm currently running my application on full screen mode, because that's the default configuration. I wanted to know how to change this configuration to a true window. Thanks, Renan M Z Mendes ___ osg-users mailing list osg-users@l

Re: [osg-users] Creating window

Well, this is simple. Thanks! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Creating window

Thanks, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Picking

Hi, My question is regarding picking using LineSegmentIntersector. Based on what I have seen at the osg documentation, the following steps are required to get the coordinates of the intersection between a drawable at the scene and a line segment: 1) Create a LineSegmentIntersector:

Re: [osg-users] Picking

Thanks, J-S. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Using OSG on Windows on Bootcamp

Hi, I have a MacBook and I'm using OSG on Windows, installed with bootcamp. My application doesn't detect the right mouse button even though I am using a regular two-button mouse (Microsoft's). I was wondering if anyone stumbled upon anything of the kind and could tell me wether the problem is

Re: [osg-users] Using OSG on Windows on Bootcamp

Thanks, Robert, that really helped. Renan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Problem with moving a group

Hi, everyone. In my application the user is suuposed to be able to select several shapes (cylinders, boxes and spheres) and move them altogether as if they were one. The obvious solution would be to attach this group of shapes to a matrixtransform node, and only change the matrix of this node. Th

[osg-users] World to Local Coordinates

Hi, I wanted to have the position of a certain shape of my scene in relation to another shape's coordinate system. As I read in the documentation, there is a member function of MatrixTransform that computes "WorldToLocalMatrix", but I'm not sure on how to use it properly. This function has two

Re: [osg-users] World to Local Coordinates

Vincent, Thanks for your help, but what I want is exactly the opposite. To transform from world to local... Does anybody know the answer to my last email? Thank you. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.

[osg-users] Conical and Parallel Projections

Hi, I'd like to know if there was a way to change the default projection in OSG. By default the view uses conical projection, but in some situations I'd need a parallel projection. How can I do that? Thanks, Renan ___ osg-users mail

Re: [osg-users] Conical and Parallel Projections

Thanks J-S and Gordon, that was exactly what I wanted. I'm sorry about the terminology, I was just translating literally from Portuguese, since I'm not familiarised with the terms in English. Renan ___ osg-users mailing list osg-users@lists.openscenegra

[osg-users] Traversing

Hi, everyone. I have a class called Point that is derived from MatrixTransform. An instance of this class always has a Geode child, which has a Drawable, which is a ShapeDrawable. For better understanding of things, I'll use a simple shape for a drawable, let's say a sphere. Let's suppos

Re: [osg-users] Traversing

Hi, Robert. I'm sorry, Robert, but would you mind explaining a little bit more on how do I get access to this list? And from this, how do I choose specifically the Drawable leaf? Thanks, Renan ___ osg-users mailing list osg-users@lists.openscenegraph.o

Re: [osg-users] Traversing

Hello, Jean-Sébastien. Although it didn't seem so, I have looked through the doxygen documentation. The thing is that they aren't good enough for someone who hasn't any experience what so ever with this kind of programming. Some of the methods aren't fully explained, at least to my understa

Re: [osg-users] Traversing

Hi, Jean-Sébastien. I'm gonna take advantage of the fact you are there and ask you one thing. I tried using that last part of code you've given me, but my compiler acused an error: 1>.\Classe Pick Handler.cpp(23) : error C2682: cannot use 'dynamic_cast' to convert from 'osg::ref_ptr' to 'osg

Re: [osg-users] Traversing

Hey, don`t you ever worry about it! I'm lucky enough you do answer my questions. Thanks again, Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Traversing

Hi, Jean-Sébastien. When you've given me that code I've rearranged it in a way that would be more intuitive to me and it turned out to be this one below. Nothing much really. Just some methods calls,... well, see for yourself - nothing really changed. But I'm worried about something, since

Re: [osg-users] Traversing

awable.valid()) nest and I saw that it never entered the 'for'... Just in case you've erased my previous messages, I'm copying the new code with the appear-if-worked messages (that didn't appear). Thanks Renan Mendes bool PickHandler::handle(const osgGA::GUIE

Re: [osg-users] Traversing

There was a mistake in my previous message. I was testing the code after subtle changes but I forgot to change it back to normal... (But it doesn't work all the same...) bool PickHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa) { osgViewer::Viewer* viewer = dynami

Re: [osg-users] Traversing

Hi, Jean-Sébastien. OK, I've had some trouble with the first bug, but the second one I've corrected. I've sent you two messages. The last one got rid that ! problem. I was just testing the program in various manners to see where was the mistake. About the first error: I was told th

Re: [osg-users] Traversing

Hi, Jean-Sébastien. I agree with you on the "read more the provided documentation" part. My last message was just so you knew I'm not completely idiot on the subject, although I recognise I need a lot of learning to do. Well, I thank you for this good lesson you've given me on picking.

[osg-users] Path from ShapeDrawable to Parents above...

Hello, everyone. In my application, I use ShapeDrawables, which are selected by the user by mouse picking. An extract of the code concerning the picking is as follows: bool PickHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa) { osgViewer::Viewer* viewer = dyn

Re: [osg-users] Path from ShapeDrawable to Parents above...

Hi, Paul. What I really want to do is to be able to deal with the instance of the class created by me, which has a drawable part that is selectes on the screen. All the methods return the parents in the form of osg::Node, but what I want is to be able to deal with that instance of the class

Re: [osg-users] Path from ShapeDrawable to Parents above...

Hi, Paul. I've managed to do it on my own. Thanks anyway. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] STL vectors and function calls

Hi, everyone. I've got quick question on STL vectors. I've created a class (let's call it MyClass) with the method 'bool MyMethod(std::vector MyVector)' that calls another method 'void AnotherMethod()' that makes a simple check on a variable inherent to every instance of MyClass. How do I writ

Re: [osg-users] STL vectors and function calls

Thanks, Gordon. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Error: 'Debug Assertion Failure!'

Hi, everyone. When testing my application, an error message appeared saying: 'Debug Assertion Failure' and 'vector subscription out of range'. This error occured when: 1) I wrote the following code: case(osgGA::GUIEventAdapter::KEYDOWN): { if(!ponto.empty()) //

Re: [osg-users] Error: 'Debug Assertion Failure!'

Hi, Gordon. I've looked up the doxygen documentation, and the second argument of removeChild is numChildrenToRemove, which I thought stood for 'number of children to remove'. If so, wouldn't I want 1 child to be removed? Isn't my index correct? Thanks,

Re: [osg-users] Error: 'Debug Assertion Failure!'

Hi, Rafa. I'll try and do that. Thanks. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Error: 'Debug Assertion Failure!'

Hi, Rafa, I've tried doing something like what you've said before: every time before I checked for selections with verifySelection(), I searched for a NULL member and erased it, like it's done below. Can you tell me why it still isn't working? Is there a logical flaw in my code? Th

[osg-users] Bizarre crash

Hi, The most bizarre happened in my application during tests. When I open the prompt window to check some printed data, the program crashes and Windows closes it automatically. The most weird thing is that when I don't select the prompt window on the task bar, my application runs perfectly. Bu

Re: [osg-users] Bizarre crash

No need. Solved. Thanks, Renan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Creating shapes under mouse cursor

Hi everyone. In my application, when I press the 'p' key, when no shape is selected, I create a small ShapeDrawable sphere and add it to the root node. I'd like to be able to create that shape right under the mouse cursor. I've tried using the coordinates from ea.getX() and ea.getY(), but th

[osg-users] Mathematical foundations

Hi everyone, Since I'm new on the whole computer graphics world, I don't have the mathematical foundations needed to fully comprehend the geometric transformations involved in a scene graph and used by OSG in its methods. I'd like to ask anybody who knows about a good website that deals with

Re: [osg-users] Creating shapes under mouse cursor

In 3d coordinates... I know, we'll have to do something about the depth. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Mathematical foundations

Oh, that is already done, but thanks for the advice. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Creating shapes under mouse cursor

> Hi Renan, > > what I do for this is the following: > > - compute the line behind the mouse cursor perpendicular to the screen. > You will ned the transformation and view matrices for this > > - intersect this line with a plane parallel to the screen through the > origin. You can use the line comp

[osg-users] decompose and osg::Quat

Hi, everyone. I've got a simple question that I'm sure everyone will be able to answer. When I have a matrix and use it in matrix.decompose (osg::Vec3 &translation, osg::Quat &rotation, osg::Vec3 &scale, osg::Quat &so), my second argument will be filled with numbers that are supposed to repre

Re: [osg-users] decompose and osg::Quat

Hi, Jean-Sébastien. Thanks for the interest, I'll check into that link you gave me. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-user

Re: [osg-users] Creating shapes under mouse cursor

Hi, Andreas here a bit of code, which you will have to adjust to your setup (meaning > that I use a GUI and you use a Viewer, where Functions for retrieving > the mouse are different): // //Here you get the mou

Re: [osg-users] Creating shapes under mouse cursor

Hi, Jean-Sébastien. Andreas told me that I needed to create a method to compute the intersection of the line and plane. I was searching for a way reading the doxygen documentation and expecting something similar to what I had done with shapedrawable picking when I realised that neither lines

[osg-users] ShapeDrawables intersection

Hi, everyone. I'd like to know a way to detect intersection between two ShapeDrawables and its position. Thanks, Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org ht

Re: [osg-users] ShapeDrawables intersection

Hi, Robert. I think I really need a tutorial on intersections. How to compute them, how to locate it in my world coordinates, etc. I don't really know what Polytopes are, let alone deal with them... Could you give me a reference (or several) on the subject?

[osg-users] Shape Intersection

Hi everyone, I need to detect when two shapes intersect and I need to know the point (or set of points) where it happens. I'm using shape drawables and I've been told that OSG doesn't have any support in that case. I was suggested, then, to fit a polytope around my shapedrawables and compute

[osg-users] Stereoscopy in OSG

Hi, everyone. What is OSG's support on stereoscopy? I have a dual-head video card and I needed that the images shown in the two monitors were slightly different in terms of view angle (my final objective, of course, is to project these two images on a screen making use of the stereoscopi

[osg-users] LineSegment and Plane Intersection

Hi, everyone. I'm having some trouble with computing the coordinates of the intersection between a osg::Plane and an osg::LineSegment. In addition, I'd like to be able to compute only the intersection with the plane, and forget about the rest of my scene... Is it possible? Thanks, Renan M Z Mend

Re: [osg-users] LineSegment and Plane Intersection

Hi, Robert. I am aware of the analytical way of solving my problems. Thanks, anyway. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-

[osg-users] Setting BoundingBox

Hi, everyone. I am currently trying to implement 'snaps' in my application. I don't know if that's the standard nomenclature, so I'll explain briefly what I mean with that. A snap is basically a sudden transformation of the shape on the screen to a certain orientation and position i

[osg-users] Stereoscopy, part 2

Hi, It's been a couple of weeks since I first asked about stereoscopy in OSG. I've had an answer from Rémy (which I forgot to thank for, sorry), but I still have some questions on the subject. I've managed to use the stereoscopy option, which provided me with a split image of my scene. W

[osg-users] Representing projections

Hi, In my application, I need to represent simple shapes' projections. For instance, project a line on a plane. I was thinking about using textures, but my problem is that my projection will have to be to be rotated and translated all the time, which, according to what I've noticed in some exa

Re: [osg-users] Setting BoundingBox

Hi, Ulrich. This is what I've said in my first email: "I am currently trying to implement 'snaps' in my application. I don't know if that's the standard nomenclature, so I'll explain briefly what I mean with that. A snap is basically a sudden transformation of the shape on the screen

Re: [osg-users] Stereoscopy, part 2

Thanks for your help. everyone. I haven't tested your suggestion yet, but when I do (probably Tuesday), I'll let you know. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-use

[osg-users] Transforms

Quick notation question: When I have a MatrixTransform* mt and a Matrix m and I do this: mt->postMult(m), which of the following am I mathematically doing? mt = mt * m; or mt = m * mt Thanks, Renan M Z Mendes ___ osg-users mailing list osg-use

[osg-users] SpaceNavigator

Hi, Has anyone used the 3Dconnexion SpaceNavigator in an OSG application? I'm intending on using it as a mouse substitute (somehow create a mouse-like cursor to be displayed), and use its 3D direction signals to rotate and translate my shapes, and also my viewer. I don't know where to beg

Re: [osg-users] SpaceNavigator

OK, Mike. I'll have a look and come back with my questions. Thanks, Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Saving and Loading Scenes

Hi, I need some help on saving and loading scenegraphs. Reading the OSG documentation, specifically the osgDB namespace, I saw that I have no idea where to begin! Can someone give me a reference? Thanks, Renan M Z Mendes ___

Re: [osg-users] Saving and Loading Scenes

Benjamin, I've used this function (it compiled alright), but when running my aplication, there was an error message, saying that I didn't have the plugin for reading and writing files... I went to the OSG website and searched for reading and writing plugins, but there were so many, I didn't

[osg-users] get function in osg::Matrixf

Hi, I'm new in using open source software. Because of that I don't know how to modify the library's code according to my needs. For instance, I'd like to create a getCoefficients() function in osg::Matrix, but I don't know where to make that change. I'm using windows and I've followed the ins

Re: [osg-users] get function in osg::Matrixf

Robert, Sorry it took me forever to reply. The getCoefficients was just an example. The point was just to be able to change OSG's source code when I felt the need. Sorry if it was a bad example... Renan M Z Mendes ___ osg-users mailin

Re: [osg-users] get function in osg::Matrixf

Thanks, Gordon. I'll keep that in mind when I manage to change OSG's code. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Assertion failure - using removeChild

Hi, everyone. I wrote the following code: case(osgGA::GUIEventAdapter::KEYDOWN): { if(ea.getKey() == ea.KEY_Delete) { if(!vprim.empty()) { vprim_itr = vprim.begin();

[osg-users] Callbacks

Hi, I'm new in OSG and when I was reading about callbacks and how to implement them, I couldn't understand one thing: for every different callback you need a different class? Thanks, Renan M Z Mendes ___ osg-users mailing

Re: [osg-users] Callbacks

OK, thank you. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] LINE

Hi, I'd like to know if there is some way of making the LINE that is used to draw geometry based on OpenGL primitives a little bit thicker. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://list

Re: [osg-users] LINE

Thank you all, for the help provided. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Highlights

Hi, everyone. I'd like to know how to create highlights around drawables. In my case I'm using ShapeDrawables, I don't know if that changes anything. Thanks, Renan M Z Mendes ___ osg-users mailing list o

[osg-users] Colors and Lighting

Hi, I'm new at OSG and computer graphics in general, so I'd like to ask a few very simple questions: 1) When I use an osg::Vec4 for setting the clear color, I have, of course, 4 parameters. The first three are the proportion of red, green and blue. But what does the last one do? 2) Thi

[osg-users] New Device Input

Hi, I'm working on a project that requires the use of a new input device, called space navigator. I have the method that gets the 6 coordinates from it. I'd like to know how to get it at every frame. I thought of using a callback, but it doesn't seem right, for the object from that class is n

Re: [osg-users] New Device Input

Thank you, all. Very good ideas. I'll check into what you've said. Once again, thanks. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

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