345810ef22
Performance tests on big models did not indicate any performance penalty in using doubles over floats, so the move to doubles should mainly impact precision improvements for whole earth databases. Also made improvements to osgUtil::PlaneIntersector and osgSim::ElevationSlice classes
130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
#include <osg/TexGen>
|
|
#include <osg/Notify>
|
|
#include <osg/io_utils>
|
|
|
|
using namespace osg;
|
|
|
|
TexGen::TexGen()
|
|
{
|
|
_mode = OBJECT_LINEAR;
|
|
_plane_s.set(1.0f, 0.0f, 0.0f, 0.0f);
|
|
_plane_t.set(0.0f, 1.0f, 0.0f, 0.0f);
|
|
_plane_r.set(0.0f, 0.0f, 1.0f, 0.0f);
|
|
_plane_q.set(0.0f, 0.0f, 0.0f, 1.0f);
|
|
}
|
|
|
|
|
|
TexGen::~TexGen()
|
|
{
|
|
}
|
|
|
|
|
|
void TexGen::setPlane(Coord which, const Plane& plane)
|
|
{
|
|
switch( which )
|
|
{
|
|
case S : _plane_s = plane; break;
|
|
case T : _plane_t = plane; break;
|
|
case R : _plane_r = plane; break;
|
|
case Q : _plane_q = plane; break;
|
|
default : notify(WARN)<<"Error: invalid 'which' passed TexGen::setPlane("<<(unsigned int)which<<","<<plane<<")"<<std::endl; break;
|
|
}
|
|
}
|
|
|
|
const Plane& TexGen::getPlane(Coord which) const
|
|
{
|
|
switch( which )
|
|
{
|
|
case S : return _plane_s;
|
|
case T : return _plane_t;
|
|
case R : return _plane_r;
|
|
case Q : return _plane_q;
|
|
default : notify(WARN)<<"Error: invalid 'which' passed TexGen::getPlane(which)"<<std::endl; return _plane_r;
|
|
}
|
|
}
|
|
|
|
Plane& TexGen::getPlane(Coord which)
|
|
{
|
|
switch( which )
|
|
{
|
|
case S : return _plane_s;
|
|
case T : return _plane_t;
|
|
case R : return _plane_r;
|
|
case Q : return _plane_q;
|
|
default : notify(WARN)<<"Error: invalid 'which' passed TexGen::getPlane(which)"<<std::endl; return _plane_r;
|
|
}
|
|
}
|
|
|
|
void TexGen::setPlanesFromMatrix(const Matrixd& matrix)
|
|
{
|
|
_plane_s.set(matrix(0,0),matrix(1,0),matrix(2,0),matrix(3,0));
|
|
_plane_t.set(matrix(0,1),matrix(1,1),matrix(2,1),matrix(3,1));
|
|
_plane_r.set(matrix(0,2),matrix(1,2),matrix(2,2),matrix(3,2));
|
|
_plane_q.set(matrix(0,3),matrix(1,3),matrix(2,3),matrix(3,3));
|
|
}
|
|
|
|
void TexGen::apply(State&) const
|
|
{
|
|
|
|
if (_mode == OBJECT_LINEAR || _mode == EYE_LINEAR)
|
|
{
|
|
GLenum glmode = _mode == OBJECT_LINEAR ? GL_OBJECT_PLANE : GL_EYE_PLANE;
|
|
|
|
if (sizeof(_plane_s[0])==sizeof(GLfloat))
|
|
{
|
|
glTexGenfv(GL_S, glmode, (const GLfloat*)_plane_s.ptr());
|
|
glTexGenfv(GL_T, glmode, (const GLfloat*)_plane_t.ptr());
|
|
glTexGenfv(GL_R, glmode, (const GLfloat*)_plane_r.ptr());
|
|
glTexGenfv(GL_Q, glmode, (const GLfloat*)_plane_q.ptr());
|
|
}
|
|
else
|
|
{
|
|
glTexGendv(GL_S, glmode, (const GLdouble*)_plane_s.ptr());
|
|
glTexGendv(GL_T, glmode, (const GLdouble*)_plane_t.ptr());
|
|
glTexGendv(GL_R, glmode, (const GLdouble*)_plane_r.ptr());
|
|
glTexGendv(GL_Q, glmode, (const GLdouble*)_plane_q.ptr());
|
|
}
|
|
|
|
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, _mode );
|
|
|
|
}
|
|
else if (_mode == NORMAL_MAP)
|
|
{
|
|
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, _mode );
|
|
// glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, _mode );
|
|
}
|
|
else if (_mode == REFLECTION_MAP)
|
|
{
|
|
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, _mode );
|
|
// glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, _mode );
|
|
}
|
|
else // SPHERE_MAP
|
|
{
|
|
// Also don't set the mode of GL_R & GL_Q as these will generate
|
|
// GL_INVALID_ENUM (See OpenGL Refrence Guide, glTexGEn.)
|
|
|
|
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, _mode );
|
|
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, _mode );
|
|
}
|
|
|
|
}
|