[osg-users] openthreads compile error for wince
Hi: I have tried to compile osg2.96 for wince.It fails at the first key projects:OpenThreads. I find that Atomic in osg2.96 needs intrin.h,but under wince,there is no such file.I compare the Atomic.cpp between osg2.6 and osg2.96 and find that the osg2.6 version does not need intrin.h.So later I will try replacing Atomic and Atomic.cpp of osg2.96 with osg2.6. zhiyuan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to compile osg2.96 under WINCE
Hi: I see that osg2.96 can support OpenGL ES now,I would like to try compile osg2.96 for WINCE6.0,but I do not konw how to compile under wince6.0. Should all 3party dependecy be recompiled with deployment device:wince device 5.0 under visual studio 2005. zhi yuan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgMovie example problem
Hi: I find that there is only sound when I set useTextureRectangle to false.Does quicktime plugin only support TextrueRectangle. zhi yuan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] MatrixTransform accumulation
Hi:
I find something strange like this:
osg::Matrix _matrix;
osg::ref_prt PAT1 = new osg::MatrixTransform();
_matrix.setTrans(osg::Vec3(10.0f,10.0f,0.0f));
PAT1 ->setMatrix(_matrix);
osg::ref_prt PAT2 = new osg::MatrixTransform();
PAT2 ->setMatrix(_matrix);
osg::ref_prt PAT3= new osg::MatrixTransform();
PAT3 ->setMatrix(_matrix);
osg::ref_prt PAT4= new osg::MatrixTransform();
PAT4 ->setMatrix(_matrix);
PAT1->addChild(PAT2->get());
PAT2->addChild(PAT3->get());
PAT3->addChild(PAT4->get());
osg::Node* node = osgDB::readNodeFile("*.ive");
PAT4->addChild(node);
I think node's final position is (40,40,0),but the actual position in scene
is(10,10,0).Do I have to accumulate the four MatrixTransform manually?
tim.yan
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to draw an object once
Hi:
Is there any way to draw an object only once?For example,if I load
a model via
osgDB::readNodeFile(""),then I add the loaded model to rootNode of
scene.What
I want to do is that I want to draw the model once at the first
frame,during the other frames,I just keep the model drawn at the frist
frame(do not redraw the model ).
zhi yuan
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to change texture dynamically
Hi: If I have a node with four texure in it, what should I do if I want to change one texture of these 4 dynamically?(the new texure's size my be different) zhi yuan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] how to compile osgplugins\quicktime plugin (Robert Osfield)
Hi: The problem has been solved yet.Line 4016 and Line 4017 of QuicktimeComponents.h has been commented.Uncomment this two lines,then compile will be ok. zhi yuan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to compile osgplugins\quicktime plugin
Hi: I failed to compile osgdb_qt plugin under osgplugins\quicktime via osg2.6 and quick time 7.0&7.3 SDK.There are a lot of compile errors.I wonder that which version of quick time SDK is needed for compiling osgdb_qt plugin under osg2.6. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to get drawing primitives
Hi:
If I load a osg model like this:
osg::Node* node = osgDB::readNodeFile("modelname");
If I want to get the drawing primitives(vertex coord,normal,vertex
color and so on) form the node I created,What should I do?Is there
some member functions to call to get the primitive data I wanted.
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] problem with osg::MatrixTransform
Hi:
I try to transform osg::Node by MatrixTransform,but failed .Could
anybody tell me what is the matter.
Here is my code:
osgViewer::Viewer viewer;
osg::Node* node = osgDB::readNodeFile("car/car.osg");
osg::Group* rootNode = new osg::Group;
osg::MatrixTransform* mt1=new osg::MatrixTransform;
mt1->setMatrix(osg::Matrix::translate(osg::Vec3(0.0,0.0f,2.0f)));
mt1->addChild(node);
rootNode->addChild(mt1);
viewer.setSceneData(rootNode);
viewer.realize();
viewer.run();
another problem: can I add matrixtransform to another matrixtransfrom in
order to get the total effect the two matrixtransforms?Should I use
nodevisitor to implement this idea?
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] how to add shader to osgcal node
Hi:
I am trying to add shader to osgcal node.
I do it like this:
osgCal::CoreModel *core = new osgCal::CoreModel("dummy");
load(core); //< loading some data into it
// Creating a concrete model using the core template
osgCal::Model *model = new osgCal::Model();
model->create(core);
osgCal::Model *model_2 = new osgCal::Model();
model_2->create(core);
//osgCal::Model *model = new osgCal::Model(core);
// Setting the first animation in loop mode, weight 1, and starting just
now
model->startLoop(0, 1.0f, 0.0f);
model_2->startLoop(1, 1.0f, 0.0f);
model_2->setTimeScale(1.5f);
osg::ref_ptr escena = new osg::Group();
escena->addChild(model);
escena->addChild(model_2);
osg::StateSet* stateSet = escena->getOrCreateStateSet();
osg::Program* program= new osg::Program;
osg::Shader* shader = new osg::Shader(osg::Shader::VETEXT);
...
the problem is the shander does not apply to the osg node,is there any other
way to add shader to osgcal node?
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Re osg::getGlyphQuads
Hi:
I have solved the problem how to get one char's position inside a
osgText::Text;
The purpose is to move cursor when input text.
Here is my code:
updateCursorPos(const std::string& string, int position)
{
osg::Vec3 cursor_position = m_inputText->getPosition();
//get the font resolution
osgText::FontResolution fr;
fr.first = FONT_RES_X;
fr.second = FONT_RES_Y;
//m_inputText is the osg::Text from which you want to get the last
char's position
const osgText::Font* font = m_inputText->getFont();
osgText::Font* font1 = const_cast(font);
//get total size of input parameter string
//string is the the std::string inside the m_inputText
unsigned int size = string.size();
osgText::Font::Glyph* glyph = font1->getGlyph(fr,size-1);
osgText::Font::GlyphTexture* glyphTexture = glyph->getTexture();
const osgText::Text::GlyphQuads * glyph_quads =
m_inputText->getGlyphQuads( glyphTexture );
if( glyph_quads )
{
int coord_size = glyph_quads->getTransformedCoords(0).size();
int input_text_size = string.size(); // # chars on line.
if( position > 0 )
{
// Get position of character under cursor
// There are 4 coords per character, BottomLeft, TopLeft,
// BottomRight, TopRight. We want the BottomRight.
osg::Vec3 glyph_pos = glyph_quads->getTransformedCoords(0)[
position * 4 - 2 ];
cursor_position[0] = glyph_pos[0]; // Use only the X position
}
}
}
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgText::getGlyphQuads
Hi:
I have some code to update from osg1.2 to osg2.6 and confront with some
problem.
the input parameter for osgText::getGlyphQuads has changed from
osg::StateSet* stateSet
to Font::GlyphTexture* texture.
Here is my original code:
osg::Vec3 cursor_position = m_inputText->getPosition();
osg::StateSet* ss = m_inputText->getStateSet();
//
//m_inputText->getGlyphQuads( ss ) has to be changed.:)
const osgText::Text::GlyphQuads * glyph_quads =
m_inputText->getGlyphQuads( ss );
if( glyph_quads )
{
int coord_size = glyph_quads->getTransformedCoords(0).size();
int input_text_size = string.size(); // # chars on line.
//assert( position <= input_text_size );
//assert( position * 4 <= coord_size );
if( position > 0 )
{
// Get position of character under cursor
// There are 4 coords per character, BottomLeft, TopLeft,
// BottomRight, TopRight. We want the BottomRight.
osg::Vec3 glyph_pos = glyph_quads->getTransformedCoords(0)[
position * 4 - 2 ];
cursor_position[0] = glyph_pos[0]; // Use only the X position
}
}
Is there anyone can tell me how to modify the above function
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OSGPPU
Hi:
I just down load OSGPPU and compile it with OSG2.6.But the
example(hdr,dof) output nothing(the screen is black).Is there anybody can
tell me what is wrong.
The example viewer can not run when execute to here:
inline observer_ptr& operator = (T* ptr)
{
if (_ptr==ptr) return *this;
// it goes wrong
here!!!
if (_ptr) _ptr->removeObserver(this);
_ptr = ptr;
if (_ptr) _ptr->addObserver(this);
return *this;
}
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] HDR in osg
Hi:
I try to implement HDR render pipline in osg.Ater I render the scene to
FBO as a texture,I do not konw how to apply this texture to the original
scene after post processed.
following is the code for render to texture:
//render to texture
{
// texture to render to and to use for rendering of flag.
osg::Texture* texture = 0;
osg::TextureRectangle* textureRect = new
osg::TextureRectangle();
textureRect->setTextureSize(tex_width, tex_height);
textureRect->setInternalFormat(GL_RGBA);
textureRect->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
textureRect->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
texture = textureRect;
texture->setInternalFormat(GL_FLOAT_RGBA32_NV);
texture->setSourceFormat(GL_RGBA);
texture->setSourceType(GL_FLOAT);
osg::Camera* camera = new osg::Camera;
// set up the background color and clear mask.
camera->setClearColor(osg::Vec4(0.1f,0.1f,0.3f,1.0f));
camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// the camera is going to look at our input quad
camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrix::identity());
// set viewport
camera->setViewport(0, 0, tex_width, tex_height);
// set the camera to render before the main camera.
camera->setRenderOrder(osg::Camera::PRE_RENDER);
// tell the camera to use OpenGL frame buffer objects
camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
camera->attach(osg::Camera::BufferComponent(osg::Camera::COLOR_BUFFER0),
texture);
//camera->attach(osg::CameraNode::COLOR_BUFFER, texture);
osg::Image* image = new osg::Image;
image->allocateImage(tex_width, tex_height, 1, GL_RGBA, GL_FLOAT);
camera->attach(osg::Camera::BufferComponent(osg::Camera::COLOR_BUFFER0),
image);
textureRect->setImage(0, image);
//unsigned int numFace = texture->getNumImages();
camera->setPostDrawCallback(new MyCameraPostDrawCallback(image));
camera->addChild(rootnode);
rootGroup->addChild(camera);
}
Is there any one can tell me what to do if I want to access the texure in
pixel shader.
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
