Hi,
try in void ColorVisitor::apply(osg::Geode ) {
.
if (colorArrays) {
for (unsigned int i = 0; i < colorArrays->size(); i++)
{
osg::Vec4 *color = >operator [](i);
//
// could also use *color =
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:
Hi Diego,
can you post your Visitor code? It can be something like missing calling
->dirty() on the color array or such
On Mon, Nov 26, 2018 at 8:30 PM Diego Mancilla wrote:
> Hello,
>
> I have tried Eran's suggestion with no success. I have successfully
> created the handler, and it gets
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
Hello Eran,
Thank you again.
I will try what you suggest.
Cheers,
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=75244#75244
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Hi Diego,
You can pass user events to the viewer (and thus to its Event Handlers):
Code:
// This struct will be passed to the event handler with the relevant parameters
(for example, the node you want to affect and the color to change it to)
struct ChangeColorEvent : public osg::Referenced
{
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
Hi,
To respond to user events you can either inherit from osg::Callback and install
it on your node as an EventCallback:
Code:
class ColorCallback : public osg::Callback
{
public:
virtual bool run(osg::Object* object, osg::Object* data) override
{
auto nv =
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
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