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// K-3D
// Copyright (c) 1995-2008, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This program 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 GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/** \file
\author Timothy M. Shead (tshead@k-3d.com)
*/
#include "array_helpers.h"
#include <k3d-i18n-config.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/imaterial.h>
#include <k3dsdk/imesh_painter_ri.h>
#include <k3dsdk/node.h>
#include <k3dsdk/polyhedron.h>
#include <k3dsdk/renderable_ri.h>
#include <k3dsdk/selection.h>
#include <k3dsdk/utility_gl.h>
#include <boost/scoped_ptr.hpp>
#include <set>
namespace module
{
namespace renderman
{
namespace painters
{
/////////////////////////////////////////////////////////////////////////////
// polyhedron_painter
class polyhedron_painter :
public k3d::node,
public k3d::ri::imesh_painter
{
typedef k3d::node base;
public:
polyhedron_painter(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document)
{
}
void paint_mesh(const k3d::mesh& Mesh, const k3d::ri::render_state& RenderState)
{
for(k3d::mesh::primitives_t::const_iterator primitive = Mesh.primitives.begin(); primitive != Mesh.primitives.end(); ++primitive)
{
boost::scoped_ptr<k3d::polyhedron::const_primitive> polyhedron(k3d::polyhedron::validate(Mesh, **primitive));
if(!polyhedron)
continue;
const k3d::mesh::points_t& points = *Mesh.points;
const k3d::mesh::table_t& point_attributes = Mesh.point_attributes;
const k3d::uint_t shell_begin = 0;
const k3d::uint_t shell_end = shell_begin + polyhedron->shell_types.size();
for(k3d::uint_t shell = shell_begin; shell != shell_end; ++shell)
{
if(polyhedron->shell_types[shell] != k3d::polyhedron::POLYGONS)
continue;
// Get the set of all materials used in this polyhedron ...
typedef std::set<k3d::imaterial*> materials_t;
materials_t materials;
const k3d::uint_t faces_begin = 0;
const k3d::uint_t faces_end = faces_begin + polyhedron->face_shells.size();
for(k3d::uint_t face = faces_begin; face != faces_end; ++face)
{
if(polyhedron->face_shells[face] != shell)
continue;
materials.insert(polyhedron->face_materials[face]);
}
// Iterate over each material, rendering all the faces that use that material in a single pass
for(materials_t::iterator m = materials.begin(); m != materials.end(); ++m)
{
k3d::imaterial* const material = *m;
k3d::ri::unsigned_integers loop_counts;
k3d::ri::unsigned_integers vertex_counts;
k3d::ri::unsigned_integers vertex_ids;
array_copier ri_constant_attributes;
ri_constant_attributes.add_arrays(polyhedron->constant_attributes);
array_copier ri_uniform_attributes;
ri_uniform_attributes.add_arrays(polyhedron->face_attributes);
array_copier ri_facevarying_attributes;
ri_facevarying_attributes.add_arrays(polyhedron->vertex_attributes);
array_copier ri_vertex_attributes;
ri_vertex_attributes.add_array(k3d::ri::RI_P(), points);
ri_vertex_attributes.add_arrays(point_attributes);
ri_constant_attributes.push_back(0);
for(k3d::uint_t face = faces_begin; face != faces_end; ++face)
{
if(polyhedron->face_shells[face] != shell)
continue;
if(polyhedron->face_materials[face] != material)
continue;
loop_counts.push_back(polyhedron->face_loop_counts[face]);
ri_uniform_attributes.push_back(face);
const k3d::uint_t loop_begin = polyhedron->face_first_loops[face];
const k3d::uint_t loop_end = loop_begin + polyhedron->face_loop_counts[face];
for(k3d::uint_t loop = loop_begin; loop != loop_end; ++loop)
{
k3d::uint_t vertex_count = 0;
const k3d::uint_t first_edge = polyhedron->loop_first_edges[loop];
for(k3d::uint_t edge = first_edge; ; )
{
ri_facevarying_attributes.push_back(edge);
++vertex_count;
vertex_ids.push_back(polyhedron->vertex_points[edge]);
edge = polyhedron->clockwise_edges[edge];
if(edge == first_edge)
break;
}
vertex_counts.push_back(vertex_count);
}
}
ri_vertex_attributes.insert(0, points.size());
k3d::ri::parameter_list ri_parameters;
ri_constant_attributes.copy_to(k3d::ri::CONSTANT, ri_parameters);
ri_uniform_attributes.copy_to(k3d::ri::UNIFORM, ri_parameters);
ri_facevarying_attributes.copy_to(k3d::ri::FACEVARYING, ri_parameters);
ri_vertex_attributes.copy_to(k3d::ri::VERTEX, ri_parameters);
k3d::ri::setup_material(material, RenderState);
RenderState.stream.RiPointsGeneralPolygonsV(loop_counts, vertex_counts, vertex_ids, ri_parameters);
}
}
}
}
void paint_complete(const k3d::mesh& Mesh, const k3d::ri::render_state& RenderState)
{
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<polyhedron_painter, k3d::interface_list<k3d::ri::imesh_painter > > factory(
k3d::uuid(0x0771ea79, 0x6c8c4c6d, 0x8bab8c83, 0x42fc73e9),
"RenderManPolyhedronPainter",
_("Renders mesh polyhedra"),
"RenderMan Painter",
k3d::iplugin_factory::STABLE);
return factory;
}
};
/////////////////////////////////////////////////////////////////////////////
// polyhedron_painter_factory
k3d::iplugin_factory& polyhedron_painter_factory()
{
return polyhedron_painter::get_factory();
}
} // namespace painters
} // namespace renderman
} // namespace module
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