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#include "export.h"
#include "printutils.h"
#include "OffscreenView.h"
#include "CsgInfo.h"
#include <stdio.h>
#include "polyset.h"
#include "rendersettings.h"
#ifdef ENABLE_CGAL
#include "CGALRenderer.h"
#include "CGAL_renderer.h"
#include "cgal.h"
void export_png_with_cgal(CGAL_Nef_polyhedron *root_N, Camera &cam, std::ostream &output)
{
OffscreenView *glview;
try {
glview = new OffscreenView( cam.pixel_width, cam.pixel_height );
} catch (int error) {
fprintf(stderr,"Can't create OpenGL OffscreenView. Code: %i.\n", error);
return;
}
CGALRenderer cgalRenderer(*root_N);
BoundingBox bbox;
if (cgalRenderer.polyhedron) {
CGAL::Bbox_3 cgalbbox = cgalRenderer.polyhedron->bbox();
bbox = BoundingBox(
Vector3d(cgalbbox.xmin(), cgalbbox.ymin(), cgalbbox.zmin()),
Vector3d(cgalbbox.xmax(), cgalbbox.ymax(), cgalbbox.zmax()) );
}
else if (cgalRenderer.polyset) {
bbox = cgalRenderer.polyset->getBoundingBox();
}
if (cam.type == Camera::NONE) {
cam.type = Camera::VECTOR;
cam.center = getBoundingCenter(bbox);
double radius = getBoundingRadius(bbox);
Vector3d cameradir(1, 1, -0.5);
cam.eye = cam.center - radius*2*cameradir;
}
glview->setCamera( cam );
glview->setRenderer(&cgalRenderer);
glview->paintGL();
glview->save(output);
}
enum Previewer { OPENCSG, THROWN } previewer;
#ifdef ENABLE_OPENCSG
#include "OpenCSGRenderer.h"
#include <opencsg.h>
#endif
#include "ThrownTogetherRenderer.h"
void export_png_preview_common( Tree &tree, Camera &cam, std::ostream &output, Previewer previewer = OPENCSG )
{
CsgInfo csgInfo = CsgInfo();
if ( !csgInfo.compile_chains( tree ) ) {
fprintf(stderr,"Couldn't initialize CSG chains\n");
return;
}
try {
csgInfo.glview = new OffscreenView( cam.pixel_width, cam.pixel_height );
} catch (int error) {
fprintf(stderr,"Can't create OpenGL OffscreenView. Code: %i.\n", error);
return;
}
#ifdef ENABLE_OPENCSG
OpenCSGRenderer openCSGRenderer(csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain, csgInfo.glview->shaderinfo);
#endif
ThrownTogetherRenderer thrownTogetherRenderer( csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain );
if (cam.type == Camera::NONE) {
cam.type = Camera::VECTOR;
double radius = 1.0;
if (csgInfo.root_chain) {
BoundingBox bbox = csgInfo.root_chain->getBoundingBox();
cam.center = (bbox.min() + bbox.max()) / 2;
radius = (bbox.max() - bbox.min()).norm() / 2;
}
Vector3d cameradir(1, 1, -0.5);
cam.eye = cam.center - radius*1.8*cameradir;
}
csgInfo.glview->setCamera( cam );
if ( previewer == OPENCSG )
csgInfo.glview->setRenderer( &openCSGRenderer );
else
csgInfo.glview->setRenderer( &thrownTogetherRenderer );
#ifdef ENABLE_OPENCSG
OpenCSG::setContext( 0 );
OpenCSG::setOption( OpenCSG::OffscreenSetting, OpenCSG::FrameBufferObject );
#endif
csgInfo.glview->paintGL();
csgInfo.glview->save( output );
}
void export_png_with_opencsg(Tree &tree, Camera &cam, std::ostream &output)
{
#ifdef ENABLE_OPENCSG
export_png_preview_common( tree, cam, output, OPENCSG );
#else
fprintf(stderr,"This openscad was built without OpenCSG support\n");
#endif
}
void export_png_with_throwntogether(Tree &tree, Camera &cam, std::ostream &output)
{
export_png_preview_common( tree, cam, output, THROWN );
}
#endif // ENABLE_CGAL
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