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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/nurbs_patch.h>
#include <k3dsdk/renderable_ri.h>
#include <k3dsdk/selection.h>
#include <k3dsdk/utility_gl.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace renderman
{
namespace painters
{
/////////////////////////////////////////////////////////////////////////////
// nurbs_patch_painter
class nurbs_patch_painter :
public k3d::node,
public k3d::ri::imesh_painter
{
typedef k3d::node base;
public:
nurbs_patch_painter(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document)
{
}
~nurbs_patch_painter()
{
}
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::nurbs_patch::const_primitive> nurbs(k3d::nurbs_patch::validate(Mesh, **primitive));
if(!nurbs)
continue;
const k3d::mesh::points_t& points = *Mesh.points;
const k3d::uint_t patch_begin = 0;
const k3d::uint_t patch_end = patch_begin + nurbs->patch_first_points.size();
for(k3d::uint_t patch = patch_begin; patch != patch_end; ++patch)
{
k3d::ri::reals u_knots(nurbs->patch_u_knots.begin() + nurbs->patch_u_first_knots[patch], nurbs->patch_u_knots.begin() + nurbs->patch_u_first_knots[patch] + nurbs->patch_u_point_counts[patch] + nurbs->patch_u_orders[patch]);
k3d::ri::reals v_knots(nurbs->patch_v_knots.begin() + nurbs->patch_v_first_knots[patch], nurbs->patch_v_knots.begin() + nurbs->patch_v_first_knots[patch] + nurbs->patch_v_point_counts[patch] + nurbs->patch_v_orders[patch]);
array_copier ri_constant_attributes;
ri_constant_attributes.add_arrays(nurbs->constant_attributes);
array_copier ri_uniform_attributes;
// K-3D NURBS patch attributes do not have the same cardinality as RenderMan NURBS uniform attributes!
// ri_uniform_attributes.add_arrays(nurbs->uniform_attributes);
array_copier ri_varying_attributes;
ri_varying_attributes.add_arrays(nurbs->parameter_attributes);
array_copier ri_vertex_attributes;
ri_vertex_attributes.add_arrays(Mesh.point_attributes);
k3d::typed_array<k3d::ri::hpoint>* const ri_points = new k3d::typed_array<k3d::ri::hpoint>();
const k3d::uint_t point_begin = nurbs->patch_first_points[patch];
const k3d::uint_t point_end = point_begin + (nurbs->patch_u_point_counts[patch] * nurbs->patch_v_point_counts[patch]);
for(k3d::uint_t point = point_begin; point != point_end; ++point)
{
ri_points->push_back(k3d::ri::hpoint(
nurbs->patch_point_weights[point] * points[nurbs->patch_points[point]][0],
nurbs->patch_point_weights[point] * points[nurbs->patch_points[point]][1],
nurbs->patch_point_weights[point] * points[nurbs->patch_points[point]][2],
nurbs->patch_point_weights[point]));
ri_vertex_attributes.push_back(nurbs->patch_points[point]);
}
ri_constant_attributes.push_back(patch);
ri_uniform_attributes.push_back(patch);
ri_varying_attributes.insert(4 * patch, 4 * (patch + 1));
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_varying_attributes.copy_to(k3d::ri::VARYING, ri_parameters);
ri_vertex_attributes.copy_to(k3d::ri::VERTEX, ri_parameters);
ri_parameters.push_back(k3d::ri::parameter(k3d::ri::RI_PW(), k3d::ri::VERTEX, 1, ri_points));
k3d::ri::setup_material(nurbs->patch_materials[patch], RenderState);
if(nurbs->patch_trim_loop_counts[patch])
{
k3d::ri::unsigned_integers ri_curve_counts;
k3d::ri::unsigned_integers ri_trim_orders;
k3d::ri::reals ri_trim_knots;
k3d::ri::reals ri_trim_mins;
k3d::ri::reals ri_trim_maxs;
k3d::ri::unsigned_integers ri_trim_point_counts;
k3d::ri::reals ri_trim_u;
k3d::ri::reals ri_trim_v;
k3d::ri::reals ri_trim_w;
k3d::uint_t loops_start = nurbs->patch_first_trim_loops[patch];
k3d::uint_t loops_end = loops_start + nurbs->patch_trim_loop_counts[patch];
for (k3d::uint_t loop_index = loops_start; loop_index != loops_end; ++loop_index)
{
k3d::uint_t curves_start = nurbs->trim_loop_first_curves[loop_index];
k3d::uint_t curves_end = curves_start + nurbs->trim_loop_curve_counts[loop_index];
ri_curve_counts.push_back(nurbs->trim_loop_curve_counts[loop_index]);
for (k3d::uint_t curve = curves_start; curve != curves_end; ++curve)
{
ri_trim_orders.push_back(nurbs->curve_orders[curve]);
ri_trim_knots.insert(ri_trim_knots.end(), nurbs->curve_knots.begin() + nurbs->curve_first_knots[curve], nurbs->curve_knots.begin() + nurbs->curve_first_knots[curve] + nurbs->curve_point_counts[curve] + nurbs->curve_orders[curve]);
ri_trim_mins.push_back(nurbs->curve_knots[nurbs->curve_orders[curve] - 1]);
ri_trim_maxs.push_back(nurbs->curve_knots[nurbs->curve_point_counts[curve]]);
ri_trim_point_counts.push_back(nurbs->curve_point_counts[curve]);
k3d::uint_t points_start = nurbs->curve_first_points[curve];
k3d::uint_t points_end = points_start + nurbs->curve_point_counts[curve];
for (k3d::uint_t point = points_start; point != points_end; ++point)
{
k3d::point2 control_point = nurbs->points[nurbs->curve_points[point]];
double weight = nurbs->curve_point_weights[point];
ri_trim_u.push_back(static_cast<k3d::ri::real>(control_point[0] * weight));
ri_trim_v.push_back(static_cast<k3d::ri::real>(control_point[1] * weight));
ri_trim_w.push_back(static_cast<k3d::ri::real>(weight));
}
}
}
RenderState.stream.RiTrimCurve(
ri_curve_counts,
ri_trim_orders,
ri_trim_knots,
ri_trim_mins,
ri_trim_maxs,
ri_trim_point_counts,
ri_trim_u,
ri_trim_v,
ri_trim_w
);
}
RenderState.stream.RiNuPatchV(
nurbs->patch_u_point_counts[patch],
nurbs->patch_u_orders[patch],
u_knots,
u_knots[nurbs->patch_u_orders[patch] - 1],
u_knots[nurbs->patch_u_point_counts[patch]],
nurbs->patch_v_point_counts[patch],
nurbs->patch_v_orders[patch],
v_knots,
v_knots[nurbs->patch_v_orders[patch] - 1],
v_knots[nurbs->patch_v_point_counts[patch]],
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<nurbs_patch_painter, k3d::interface_list<k3d::ri::imesh_painter > > factory(
k3d::uuid(0x120d87f0, 0xfe05419f, 0xae2d14ce, 0xea9c32b4),
"RenderManNURBSPatchPainter",
_("Renders NURBS patches"),
"RenderMan Painter",
k3d::iplugin_factory::STABLE);
return factory;
}
};
/////////////////////////////////////////////////////////////////////////////
// nurbs_patch_painter_factory
k3d::iplugin_factory& nurbs_patch_painter_factory()
{
return nurbs_patch_painter::get_factory();
}
} // namespace painters
} // namespace renderman
} // namespace module
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