sils_texture.C

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/**********************************************************************
 * sils_texture.C
 **********************************************************************/
#include "std/config.H"
#include "geom/gl_view.H"
#include "sils_texture.H"

/**********************************************************************
 * SilsTexture:
 **********************************************************************/
int
SilsTexture::draw(CVIEWptr& v)
{
   if (_ctrl)
      return _ctrl->draw(v);

   if (!_patch)
      return 0;

   static bool antialias = Config::get_var_bool("ANTIALIAS_SILS",true);
   if (antialias) {
      // push attributes, enable line smoothing, and set line width
      GL_VIEW::init_line_smooth(GLfloat(v->line_scale()*_width),
                                GL_CURRENT_BIT);
   } else {
      // enable line smoothing and and set line width
      glPushAttrib(GL_LINE_BIT | GL_ENABLE_BIT | GL_CURRENT_BIT);
      glLineWidth(float(v->line_scale()*_width)); // GL_LINE_BIT
   }

   glDisable(GL_LIGHTING);      // GL_ENABLE_BIT
   GL_COL(_color, alpha());     // GL_CURRENT_BIT

   if (_draw_borders)
      _patch->cur_sils().draw(_cb);
   else
      _patch->cur_sils().get_filtered(!BorderEdgeFilter()).draw(_cb);
   
   // restore gl state:
   glPopAttrib();

   return 1;
}
   
int 
SilsTexture::draw_vis_ref() 
{
   // You can pick what you can see ... for SilsTexture you see
   // silhouettes, so that's what we draw into the visibility
   // reference image:

   if (!_patch)
      return 0;

   if (_draw_borders)
      return ColorIDTexture::draw_edges(&_patch->cur_sils(), 3.0);

   EdgeStrip sils = _patch->cur_sils().get_filtered(!BorderEdgeFilter());
   return ColorIDTexture::draw_edges(&sils, 3.0);
}

/* end of file sils_texture.C */

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