[osg-users] Get Animation current time

Hello, I have several AnimationPath intances for a number of moving objects. Each object has the same number of ControlPoints on their path. I need to know if there is a proper way to retrieve the current time of the animation (using a callback, for instance). I need this number in order to

[osg-users] Working with osg::Text on animation

Hello, I have a couple of doubts regarding the proper way of handling osg::Text inside an animation. For the sake of simplicity lets say we are working on the osganimate example, and we have multiple cessna moving around. 1- What is the proper way of changing the text of osg::Text on

Re: [osg-users] Working with osg::Text on animation

ot;insert dynamically-generated string here"); > > > You can show/hide the text with its node mask: >     text->setNodeMask(0x0); // NodeMask = 0 to hide >     text->setNodeMask(~0x0); // NodeMask = 0x to show > > > Hope that helps, > Ravi > >

Re: [osg-users] Working with osg::Text on animation

ext("insert dynamically-generated string here"); > > > You can show/hide the text with its node mask: >     text->setNodeMask(0x0); // NodeMask = 0 to hide >     text->setNodeMask(~0x0); // NodeMask = 0x to show > > > Hope that helps, >

[osg-users] Colors on GL_LINES

Hello, I'm drawing some simple lines on osg. So far I have successfully draw the lines and set a single color for each of them... but when I rotate the view the color is shown only on one direction of the camera, for instance, if rotate on 180 degrees the view, all lines are shown in black

Re: [osg-users] Colors on GL_LINES

Hello ravidavi, Thank you for your answer. Your suuggestion solved my problem. Cheers, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=75348#75348 ___ osg-users mailing list

[osg-users] Speeding u/down animation smoothly

Hello, I'm trying to sppeding up/down an animation using AnimationPathCallback. The idea is to pause/speed/up/down the animation using key strokes, for this I have a GuiEventHandler derived class and a NodeVisitor derived class. So far I've playing round with the base clases AnimationPath and

Re: [osg-users] Speeding u/down animation smoothly

Hi, Thank you for your answer mp3butcher. Regarding the math issue: actually the arithmethic is correct in my code, the problem, as I found, was that the _latestTime and _fisrtTime in the AnimationPathCallback won't match the ones provided in AnimationPath, so I subclassed

[osg-users] Update node color on demand

Hello, I'm trying to change a node color on demand from my application. The idea is that the user, once the initial rendering took place can change the color of a node by pressing a key (or something similar). I know already hoy to change the color using a NodeVisitor (previous to the

Re: [osg-users] Update node color on demand

Hello Eran, Thank you very much for your answer. I should have been more explicit, due to the fact than I'm a newbie on OSG (and 3D development). I have an OSG viewer embedded on a Qt5 application. So the idea is that the user can change the color of one node (some dxf lines) on demand

Re: [osg-users] Change color of node read from dxf file

Hello Chris, Thank you for your answer. My code, actually compiles, nevertheless I was expecting a conceptual error from my side. I will try what you suggest. Cheers, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=75217#75217

[osg-users] Change color of node read from dxf file

I'm a newbie on OpenSceneGraph and 3D development. I have a dxf file that contains a bunch of 3DPOLYLINES (with different colors). So far I have been able to read and display them on a viewer, but I haven been able to change the color of the rendered lines. I believe that I'm not

Re: [osg-users] Change color of node read from dxf file

Hi, The suggestion of Chris solve the problem. The actual code: Code: osg::Node* lines = osgDB::readNodeFile("lines.dxf"); osg::Geode* geode = new osg::Geode; ColorVisitor newColor; newColor.setColor( 1.0f, 0.0f, 0.0f ); topography->accept(newColor); geode->addChild(lines);

Re: [osg-users] Update node color on demand

Hello Eran, Thank you again. I will try what you suggest. Cheers, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=75244#75244 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] Update node color on demand

Hello, I have tried Eran's suggestion with no success. I have successfully created the handler, and it gets called but no color change... My current code: On main: Code: _lines = osgDB::readNodeFile("lines.dxf"); _topo->setDataVariance(osg::Object::DYNAMIC); osg::Geode* geode = new

Re: [osg-users] Update node color on demand

Hello Trajce, The visitor class implementation is on my previous post on this thread. I took that code from Gordon Tomlison's OSG Samples, and it works when is used previous to the rendering as you can see on my initial post (other thread:

Re: [osg-users] Get Animation current time

Hello Robert, Thank you very much for you complete response. I'm trying to do what you suggest and have my on AnimationPath/AnimationPathCallback classes that handle my data. But I stumble into a problem. When I subclass AnimationPath and AnimationPathCallback I have no problems. But when

Re: [osg-users] Get Animation current time

Hello Robert, Thank you again. It turns out that I forgot to initialize the _timeMultiplier variable on the constructor of my AnimationPath class. Also I had a problem with some crazy references retrieved wrongly: for some reason on a "for (auto e: stl_map)..." loop, , was not getting the

Re: [osg-users] Get Animation current time

Hello Robert, Thank you again for your answer. Regarding your question "the AnimationPathCallback::update method)?": yes, from the source: Code: void AnimationPathCallback::update(osg::Node& node) { AnimationPath::ControlPoint cp; if

Re: [osg-users] Get Animation current time

Hello Robert, First of all, thank you for your answer. I'm just starting to use OSG so I'm learning as I go. So, my issue is a little more complicated (I think). I have serveral AnimationPath instances. Each one with a AnimationPathCallback derived class attached to it. So, the thing is that

[osg-users] osgText::Text dissapears when reparent container window on qt

Hello, This is a mixed OSG/Qt question. I asked first here due to previous experiences with the community. I'm following a minimal example of embedding OSG into a Qt5 application from https://gist.github.com/vicrucann/874ec3c0a7ba4a814bd84756447bc798. When I modify that example, and add a

[osg-users] Colored Bounding Box over osgText::Text

Hello, I'm trying to draw a bounding box around a osgText::Text instance. Setting the draw mode to 'osgText::Text::TEXT|osgText::Text::BOUNDINGBOX' draws a white box around the text. Does anyone knows a simple way to get this box color match the text color? Or, better yet, a way to draw the

Re: [osg-users] Colored Bounding Box over osgText::Text

Hello, I've found a workaround my problem. I had to inherit a class from osgText::Text and override the drawImplementation method like so: Code: void MyTextNode::drawImplementation(osg::RenderInfo& renderInfo) const { osg::Vec4 color = getColor(); # stored custom color

[osg-users] Really basic question light/material on surface

Hello, I've playing aorund with some examples on the "OpenSceneGraph 3 Cookbook" by Wang and Quian. Specifically, with Chapter 10's "Playing with delaunay triangulator". Here is the official repository code (with one small modification -commented-) Code: int main(int argc, char** argv) {