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This commit is contained in:
Robert Osfield
2012-03-21 17:36:20 +00:00
parent 1e35f8975d
commit 14a563dc9f
1495 changed files with 21873 additions and 21873 deletions
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186
src/osgPlugins/obj/OBJWriterNodeVisitor.cpp
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@@ -8,66 +8,66 @@
* Modified by Robert Osfield to support per Drawable coord, normal and
* texture coord arrays, bug fixes, and support for texture mapping.
*
* Writing support added 2007 by Stephan Huber, http://digitalmind.de,
* Writing support added 2007 by Stephan Huber, http://digitalmind.de,
* some ideas taken from the dae-plugin
*
* The Open Scene Graph (OSG) is a cross platform C++/OpenGL library for
* real-time rendering of large 3D photo-realistic models.
* The Open Scene Graph (OSG) is a cross platform C++/OpenGL library for
* real-time rendering of large 3D photo-realistic models.
* The OSG homepage is http://www.openscenegraph.org/
*/
#include <osg/io_utils>
#include "OBJWriterNodeVisitor.h"
/** writes all values of an array out to a stream, applies a matrix beforehand if necessary */
class ValueVisitor : public osg::ValueVisitor {
public:
ValueVisitor(std::ostream& fout, const osg::Matrix& m = osg::Matrix::identity(), bool isNormal = false) :
osg::ValueVisitor(),
_fout(fout),
_m(m),
ValueVisitor(std::ostream& fout, const osg::Matrix& m = osg::Matrix::identity(), bool isNormal = false) :
osg::ValueVisitor(),
_fout(fout),
_m(m),
_isNormal(isNormal)
{
{
_applyMatrix = (_m != osg::Matrix::identity());
if (_isNormal) _origin = osg::Vec3(0,0,0) * _m;
}
virtual void apply (osg::Vec2 & inv)
{
_fout << inv[0] << ' ' << inv[1];
virtual void apply (osg::Vec2 & inv)
{
_fout << inv[0] << ' ' << inv[1];
}
virtual void apply (osg::Vec3 & inv)
{
virtual void apply (osg::Vec3 & inv)
{
osg::Vec3 v(inv);
if (_applyMatrix) v = (_isNormal) ? (v * _m) - _origin : v * _m;
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
}
virtual void apply (osg::Vec2b & inv)
{
_fout << inv[0] << ' ' << inv[1];
{
_fout << inv[0] << ' ' << inv[1];
}
virtual void apply (osg::Vec3b & inv)
{
virtual void apply (osg::Vec3b & inv)
{
osg::Vec3 v(inv[0], inv[1], inv[2]);
if (_applyMatrix) v = (_isNormal) ? (v * _m) - _origin : v * _m;
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
}
virtual void apply (osg::Vec2s & inv)
{
_fout << inv[0] << ' ' << inv[1];
virtual void apply (osg::Vec2s & inv)
{
_fout << inv[0] << ' ' << inv[1];
}
virtual void apply (osg::Vec3s & inv)
{
virtual void apply (osg::Vec3s & inv)
{
osg::Vec3 v(inv[0], inv[1], inv[2]);
if (_applyMatrix) v = (_isNormal) ? (v * _m) - _origin : v * _m;
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
_fout << v[0] << ' ' << v[1] << ' ' << v[2];
}
private:
@@ -81,10 +81,10 @@ class ValueVisitor : public osg::ValueVisitor {
/** writes all primitives of a primitive-set out to a stream, decomposes quads to triangles, line-strips to lines etc */
class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
public:
ObjPrimitiveIndexWriter(std::ostream& fout,osg::Geometry* geo, unsigned int normalIndex, unsigned int lastVertexIndex, unsigned int lastNormalIndex, unsigned int lastTexIndex) :
osg::PrimitiveIndexFunctor(),
ObjPrimitiveIndexWriter(std::ostream& fout,osg::Geometry* geo, unsigned int normalIndex, unsigned int lastVertexIndex, unsigned int lastNormalIndex, unsigned int lastTexIndex) :
osg::PrimitiveIndexFunctor(),
_fout(fout),
_lastVertexIndex(lastVertexIndex),
_lastNormalIndex(lastNormalIndex),
@@ -95,29 +95,29 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
_normalIndex(normalIndex)
{
}
virtual void setVertexArray(unsigned int,const osg::Vec2*) {}
virtual void setVertexArray(unsigned int ,const osg::Vec3* ) {}
virtual void setVertexArray(unsigned int,const osg::Vec4* ) {}
virtual void setVertexArray(unsigned int,const osg::Vec2d*) {}
virtual void setVertexArray(unsigned int ,const osg::Vec3d* ) {}
virtual void setVertexArray(unsigned int,const osg::Vec4d* ) {}
void write(unsigned int i)
void write(unsigned int i)
{
_fout << (i + _lastVertexIndex) << "/";
if (_hasTexCoords || _hasNormalCoords)
if (_hasTexCoords || _hasNormalCoords)
{
if (_hasTexCoords)
_fout << (i + _lastTexIndex);
_fout << "/";
if (_hasNormalCoords)
if (_hasNormalCoords)
{
if (_geo->getNormalBinding() == osg::Geometry::BIND_PER_VERTEX)
_fout << (i+_lastNormalIndex);
@@ -127,7 +127,7 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
}
_fout << " ";
}
// operator for triangles
void writeTriangle(unsigned int i1, unsigned int i2, unsigned int i3)
{
@@ -139,9 +139,9 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
// not sure if this is correct?
if(_geo->getNormalBinding() && _geo->getNormalBinding() == osg::Geometry::BIND_PER_PRIMITIVE) ++_normalIndex;
}
// operator for lines
void writeLine(unsigned int i1, unsigned int i2)
void writeLine(unsigned int i1, unsigned int i2)
{
_fout << "l ";
write(i1);
@@ -150,9 +150,9 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
// not sure if this is correct?
if(_geo->getNormalBinding() && _geo->getNormalBinding() == osg::Geometry::BIND_PER_PRIMITIVE) ++_normalIndex;
}
// operator for points
void writePoint(unsigned int i1)
void writePoint(unsigned int i1)
{
_fout << "p ";
write(i1);
@@ -180,8 +180,8 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
}
}
virtual void drawArrays(GLenum mode,GLint first,GLsizei count);
virtual void drawArrays(GLenum mode,GLint first,GLsizei count);
virtual void drawElements(GLenum mode,GLsizei count,const GLubyte* indices)
{
drawElementsImplementation<GLubyte>(mode, count, indices);
@@ -189,21 +189,21 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
virtual void drawElements(GLenum mode,GLsizei count,const GLushort* indices)
{
drawElementsImplementation<GLushort>(mode, count, indices);
}
}
virtual void drawElements(GLenum mode,GLsizei count,const GLuint* indices)
{
drawElementsImplementation<GLuint>(mode, count, indices);
}
}
protected:
template<typename T>void drawElementsImplementation(GLenum mode, GLsizei count, const T* indices)
template<typename T>void drawElementsImplementation(GLenum mode, GLsizei count, const T* indices)
{
if (indices==0 || count==0) return;
typedef const T* IndexPointer;
switch(mode)
{
case(GL_TRIANGLES):
@@ -211,7 +211,7 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
IndexPointer ilast = &indices[count];
for(IndexPointer iptr=indices;iptr<ilast;iptr+=3)
writeTriangle(*iptr,*(iptr+1),*(iptr+2));
break;
}
case(GL_TRIANGLE_STRIP):
@@ -260,7 +260,7 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
{
IndexPointer ilast = &indices[count];
for(IndexPointer iptr=indices;iptr<ilast;++iptr)
{
writePoint(*iptr);
}
@@ -278,7 +278,7 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
}
case(GL_LINE_STRIP):
{
IndexPointer ilast = &indices[count];
for(IndexPointer iptr=indices+1;iptr<ilast;iptr+=2)
@@ -302,8 +302,8 @@ class ObjPrimitiveIndexWriter : public osg::PrimitiveIndexFunctor {
// uhm should never come to this point :)
break;
}
}
}
private:
ObjPrimitiveIndexWriter& operator = (const ObjPrimitiveIndexWriter&) { return *this; }
@@ -373,7 +373,7 @@ void ObjPrimitiveIndexWriter::drawArrays(GLenum mode,GLint first,GLsizei count)
}
case(GL_POINTS):
{
for(GLsizei i=0;i<count;++i)
{
writePoint(i);
@@ -407,11 +407,11 @@ void ObjPrimitiveIndexWriter::drawArrays(GLenum mode,GLint first,GLsizei count)
break;
}
default:
OSG_WARN << "OBJWriterNodeVisitor :: can't handle mode " << mode << std::endl;
OSG_WARN << "OBJWriterNodeVisitor :: can't handle mode " << mode << std::endl;
break;
}
}
OBJWriterNodeVisitor::OBJMaterial::OBJMaterial(osg::Material* mat, osg::Texture* tex) :
diffuse(1,1,1,1),
@@ -421,40 +421,40 @@ OBJWriterNodeVisitor::OBJMaterial::OBJMaterial(osg::Material* mat, osg::Texture*
{
static unsigned int s_objmaterial_id = 0;
++s_objmaterial_id;
std::stringstream ss;
std::stringstream ss;
ss << "material_" << s_objmaterial_id;
name = ss.str();
if (mat) {
diffuse = mat->getDiffuse(osg::Material::FRONT);
ambient = mat->getAmbient(osg::Material::FRONT);
specular = mat->getSpecular(osg::Material::FRONT);
}
if (tex) {
osg::Image* img = tex->getImage(0);
if ((img) && (!img->getFileName().empty()))
image = img->getFileName();
}
}
std::ostream& operator<<(std::ostream& fout, const OBJWriterNodeVisitor::OBJMaterial& mat) {
fout << "newmtl " << mat.name << std::endl;
fout << " " << "Ka " << mat.ambient << std::endl;
fout << " " << "Kd " << mat.diffuse << std::endl;
fout << " " << "Ks " << mat.specular << std::endl;
if(!mat.image.empty())
fout << " " << "map_Kd " << mat.image << std::endl;
return fout;
}
void OBJWriterNodeVisitor::writeMaterials(std::ostream& fout)
void OBJWriterNodeVisitor::writeMaterials(std::ostream& fout)
{
for(MaterialMap::iterator i = _materialMap.begin(); i != _materialMap.end(); ++i)
{
@@ -464,19 +464,19 @@ void OBJWriterNodeVisitor::writeMaterials(std::ostream& fout)
std::string OBJWriterNodeVisitor::getUniqueName(const std::string& defaultvalue) {
std::string name = "";
for(std::list<std::string>::iterator i = _nameStack.begin(); i != _nameStack.end(); ++i) {
if (!name.empty()) name+="_";
name += (*i);
}
if (!defaultvalue.empty())
name += "_" +defaultvalue;
if (_nameMap.find(name) == _nameMap.end())
_nameMap.insert(std::make_pair(name, 0u));
std::stringstream ss;
ss << name << "_" << _nameMap[name];
++(_nameMap[name]);
@@ -488,7 +488,7 @@ void OBJWriterNodeVisitor::processArray(const std::string& key, osg::Array* arra
{
if (array == NULL)
return;
ValueVisitor vv(_fout, m, isNormal);
_fout << std::endl;
for(unsigned int i = 0; i < array->getNumElements(); ++i) {
@@ -496,57 +496,57 @@ void OBJWriterNodeVisitor::processArray(const std::string& key, osg::Array* arra
array->accept(i, vv);
_fout << std::endl;
}
_fout << "# " << array->getNumElements() << " elements written" << std::endl;
}
void OBJWriterNodeVisitor::processStateSet(osg::StateSet* ss)
void OBJWriterNodeVisitor::processStateSet(osg::StateSet* ss)
{
if (_materialMap.find(ss) != _materialMap.end()) {
_fout << "usemtl " << _materialMap[ss].name << std::endl;
return;
}
osg::Material* mat = dynamic_cast<osg::Material*>(ss->getAttribute(osg::StateAttribute::MATERIAL));
osg::Texture* tex = dynamic_cast<osg::Texture*>(ss->getTextureAttribute(0, osg::StateAttribute::TEXTURE));
if (mat || tex)
if (mat || tex)
{
_materialMap.insert(std::make_pair(osg::ref_ptr<osg::StateSet>(ss), OBJMaterial(mat, tex)));
_fout << "usemtl " << _materialMap[ss].name << std::endl;
}
}
void OBJWriterNodeVisitor::processGeometry(osg::Geometry* geo, osg::Matrix& m) {
_fout << std::endl;
_fout << "o " << getUniqueName( geo->getName().empty() ? geo->className() : geo->getName() ) << std::endl;
processStateSet(_currentStateSet.get());
processArray("v", geo->getVertexArray(), m, false);
processArray("vn", geo->getNormalArray(), m, true);
processArray("vt", geo->getTexCoordArray(0)); // we support only tex-unit 0
unsigned int normalIndex = 0;
for(unsigned int i = 0; i < geo->getNumPrimitiveSets(); ++i)
for(unsigned int i = 0; i < geo->getNumPrimitiveSets(); ++i)
{
osg::PrimitiveSet* ps = geo->getPrimitiveSet(i);
ObjPrimitiveIndexWriter pif(_fout, geo, normalIndex, _lastVertexIndex, _lastNormalIndex, _lastTexIndex);
ps->accept(pif);
if(geo->getNormalArray() && geo->getNormalBinding() == osg::Geometry::BIND_PER_PRIMITIVE_SET)
++normalIndex;
}
if (geo->getVertexArray())
if (geo->getVertexArray())
_lastVertexIndex += geo->getVertexArray()->getNumElements();
if (geo->getNormalArray())
_lastNormalIndex += geo->getNormalArray()->getNumElements();
if(geo->getTexCoordArray(0))
_lastTexIndex += geo->getTexCoordArray(0)->getNumElements();
}
void OBJWriterNodeVisitor::apply( osg::Geode &node )
@@ -562,9 +562,9 @@ void OBJWriterNodeVisitor::apply( osg::Geode &node )
if ( g != NULL )
{
pushStateSet(g->getStateSet());
processGeometry(g,m);
popStateSet(g->getStateSet());
}
}