FindTextureVisitor .. in files)
2009/7/1 Maxim Gammer <maxgam...@gmail.com>:
> //Находим объект
> osg::ref_ptr<FindNamedNodeVisitor> fnnv = new
> FindNamedNodeVisitor(ObjectName);
> root->accept(*fnnv.get());
> //Если такой объект есть, ищем текстуру
> if (!fnnv->_foundNodes.empty())
> {
> if (fnnv->_foundNodes.size()>1) std::cout << "Warning:
> Duplicate
> names - " << ObjectName << std::endl;
> osg::ref_ptr<FindTextureVisitor> zzz = new
> FindTextureVisitor(UnitNumber);
> fnnv->_foundNodes.front().get()->accept (*zzz.get());
> //Если текстура есть
> if (zzz->image.get())
> {
> /*
> std::cout << "texture find";
> std::cout << zzz->image->s() << std::endl; //ширина
> std::cout << zzz->image->t() << std::endl; //высота
> std::cout << zzz->image->r() << std::endl; //глубина
> */
> int format = zzz->image->getPixelSizeInBits();
> //std::cout <<"getPixelSizeInBits : "<< format
> <<std::endl;
> int width = zzz->image->s();
> int heught = zzz->image->t();
> //
> GLubyte *ptr;
> int inc=0;
> ptr = zzz->image->data();
> if (x>=width) x= 0;
> if (y>=heught) y= 0;
> if (x<0) x= 0;
> if (y<0) y= 0;
> inc=(y*width + x)*format/8; //смещение по
> RGBARGBARGBA... или 4
> *(ptr+inc+0) = (GLubyte)(r*255.0f);
> *(ptr+inc+1) = (GLubyte)(g*255.0f);
> *(ptr+inc+2) = (GLubyte)(b*255.0f);
> //если RGBA
> if ((format/8)>24)
> {
> *(ptr+inc+3) = (GLubyte)(a*255.0f);
> }
> //Отправляем текстуру в видеопамять)
> if (flush)
> {
> //osg::Image* dest =dynamic_cast<osg::Image*>
> (zzz->image->clone(osg::CopyOp::DEEP_COPY_ALL));
> //zzz->texture->setImage(dest);//zzz->image
>
> // dirty the image (increments the modified
> count) so that any textures
> // using the image can be informed that they
> need to update.
> zzz->image->dirty();
>
>
> //zzz->texture->setDataVariance(osg::Object::DYNAMIC);
>
> //zzz->stateset->setTextureAttributeAndModes(UnitNumber,
> zzz->texture, osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
> //zzz->drawable->setStateSet(zzz->stateset);
> }
> }
> else
> {
> std::cout << "texture NOT find";
> //delete zzz;
> //delete fnnv;
> return false;
> }
> //Чистим мусор
> //delete zzz;
> }
> else
> {
> std::cout << "Find objects in Root - FALSE! " << ObjectName <<
> std::endl;
> //delete fnnv;
> return false;
> }
> //Чистим мусор
> //delete fnnv;
> return true;
>
> 2009/6/30 Großer Martin <grosser.mar...@gmx.de>:
>> Hello,
>>
>> i would like paint on a 3d object in my scene. This object has a texture
>> and i want to paint into this texture. My paint brush should be another
>> texture. There are a nice solution in OSG? This problem is not trivial
>> for me.
>>
>> I hope everyone can give me a example, a tip or a suitable keyword for
>> my research.
>>
>>
>> Cheers,
>>
>>
>> Martin
>>
>> _______________________________________________
>> osg-users mailing list
>> osg-users@lists.openscenegraph.org
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
>
>
>
> --
> Maxim Gammer
>
--
Maxim Gammer
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osg/CoordinateSystemNode>
#include <osg/PositionAttitudeTransform>
#include <osg/MatrixTransform>
#include <osg/Material>
#include <iostream>
class FindTextureVisitor : public osg::NodeVisitor
{
public:
FindTextureVisitor(unsigned int channel=0):
osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
{
Channel = channel;
setTraversalMask(0xffffffff);
setNodeMaskOverride(0xffffffff);
Sucessful=false;
}
virtual void apply(osg::Node& node);
virtual void apply(osg::MatrixTransform& node);
virtual void apply(osg::Geode& geode);
virtual void apply(osg::Group& group);
unsigned int Channel;
osg::ref_ptr<osg::Texture2D> texture;
osg::ref_ptr<osg::Image> image;
osg::ref_ptr<osg::Material> material;
osg::ref_ptr<osg::StateSet> stateset;
osg::ref_ptr<osg::Drawable> drawable;
private:
bool Sucessful;
};
/***************************************************************************
FindTexture.cpp - Êëàññ äëÿ íàõîæäåíèÿ òåêñòóðû è öâåòà ìàòåðèàëà óêàçàííîãî
îáûåêòà
-------------------
begin : 15 ìàÿ 2007
copyright : (C) 2007 by Ãàììåð Ìàêñèì Äìèòðèåâè÷ (maximum2000)
email : gammer...@yandex.ru
***************************************************************************/
#include "FindTexture.h"
void FindTextureVisitor::apply(osg::Node& node)
{
traverse(node);
}
void FindTextureVisitor::apply(osg::Geode& geode)
{
for(unsigned int i=0;i<geode.getNumDrawables();i++) //++i
{
if (Sucessful==true) return;
//std::cout << "+";
if (geode.getDrawable(i)->getStateSet())
{
drawable = geode.getDrawable(i);
//òåêñòóðà
stateset = geode.getDrawable(i)->getStateSet();
//getOrCreateStateSet();
texture =
dynamic_cast<osg::Texture2D*>(geode.getDrawable(i)->getStateSet()->getTextureAttribute(Channel,osg::StateAttribute::TEXTURE));
if (texture.get())
{
image = texture->getImage();
Sucessful=true;
}
else
{
image=NULL;
}
//ðàçìåð è ò.ä.
//öâåò
//material->setDiffuse(osg::Material::FRONT_AND_BACK,
color);
//stateset->setAttributeAndModes(material,
osg::StateAttribute::ON);
material =
dynamic_cast<osg::Material*>(geode.getDrawable(i)->getStateSet()->getAttribute(osg::StateAttribute::MATERIAL));
if (material.get())
{
//std::cout << "@";
}
}
}
}
void FindTextureVisitor::apply(osg::Group& group)
{
traverse(group);
}
void FindTextureVisitor::apply(osg::MatrixTransform& node)
{
apply((osg::Node&)node);
}
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