Update Buffer_for_vao and Basic_viewer_qt

This commit is contained in:
Guillaume Damiand 2017-11-30 17:33:52 +01:00 committed by Maxime Gimeno
parent b22c9959f6
commit 62492150e0
2 changed files with 263 additions and 226 deletions

View File

@ -17,8 +17,8 @@
//
// Author(s) :
#ifndef CGAL_BUFFER_FOR_VAO_H
#define CGAL_BUFFER_FOR_VAO_H
#ifndef CGAL_VBO_BUFFER_FILLER_H
#define CGAL_VBO_BUFFER_FILLER_H
#include <CGAL/Triangulation_2_projection_traits_3.h>
#include <CGAL/Triangulation_vertex_base_with_info_2.h>
@ -65,57 +65,70 @@ namespace internal {
return (typename Local_kernel::Construct_scaled_vector_3()(normal, 1.0/nb));
}
template<int dim>
struct Geom_utils;
template<>
struct Geom_utils<3>
////////////////////////////////////////////////////////////////
// Structs to transform any CGAL point/vector into a Local_point/Local_vector
template<typename K>
struct Geom_utils
{
template<typename KPoint>
static Local_point get_local_point(const KPoint& p)
static Local_point get_local_point(const typename K::Point_2& p)
{
CGAL::Cartesian_converter<typename CGAL::Kernel_traits<KPoint>::Kernel, Local_kernel> converter;
CGAL::Cartesian_converter<K, Local_kernel> converter;
return Local_point(converter(p.x()), 0, converter(p.y()));
}
static Local_point get_local_point(const typename K::Point_3& p)
{
CGAL::Cartesian_converter<K, Local_kernel> converter;
return converter(p);
}
template<typename KVector>
static Local_vector get_local_vector(const KVector& v)
static Local_point get_local_point(const typename K::Weighted_point_3& p)
{
CGAL::Cartesian_converter<typename CGAL::Kernel_traits<KVector>::Kernel, Local_kernel> converter;
typename K::Point_3 lp(p);
return Geom_utils<K>::get_local_point(lp);
}
static Local_vector get_local_vector(const typename K::Vector_2& v)
{
CGAL::Cartesian_converter<K, Local_kernel> converter;
return Local_vector(converter(v.x()), 0, converter(v.y()));
}
static Local_vector get_local_vector(const typename K::Vector_3& v)
{
CGAL::Cartesian_converter<K, Local_kernel> converter;
return converter(v);
}
};
// Specialization for Local_kernel, because there is no need of convertion here.
template<>
struct Geom_utils<2>
struct Geom_utils<Local_kernel>
{
template<typename KPoint>
static Local_point get_local_point(const KPoint& p)
{
CGAL::Cartesian_converter<typename CGAL::Kernel_traits<KPoint>::Kernel, Local_kernel> converter;
return Local_point(converter(p.x()),0,converter(p.y()));
}
template<typename KVector>
static Local_vector get_local_vector(const KVector& v)
{
CGAL::Cartesian_converter<typename CGAL::Kernel_traits<KVector>::Kernel, Local_kernel> converter;
return Local_vector(converter(v.x()),0,converter(v.y()));
}
};
static Local_point get_local_point(const typename Local_kernel::Point_2& p)
{ return Local_point(p.x(), 0, p.y()); }
static const Local_point & get_local_point(const typename Local_kernel::Point_3& p)
{ return p; }
static Local_point get_local_point(const typename Local_kernel::Weighted_point_3& p)
{ return Local_point(p);}
static Local_vector get_local_vector(const typename Local_kernel::Vector_2& v)
{ return Local_vector(v.x(), 0, v.y()); }
static const Local_vector& get_local_vector(const typename Local_kernel::Vector_3& v)
{ return v; }
};
////////////////////////////////////////////////////////////////
// Global function to simplify function calls.
template<typename KPoint>
Local_point get_local_point(const KPoint& p)
{
return Geom_utils<CGAL::Ambient_dimension<KPoint>::value>::get_local_point(p);
return Geom_utils<typename CGAL::Kernel_traits<KPoint>::Kernel>::
get_local_point(p);
}
template<typename KVector>
Local_vector get_local_vector(const KVector& v)
{
return Geom_utils<CGAL::Ambient_dimension<KVector>::value>::get_local_vector(v);
return Geom_utils<typename CGAL::Kernel_traits<KVector>::Kernel>::
get_local_vector(v);
}
} // End namespace internal
//------------------------------------------------------------------------------
template<typename BufferType=float, typename IndexType=std::size_t>
class Buffer_for_vao
@ -126,23 +139,23 @@ public:
CGAL::Bbox_3* bbox=NULL,
std::vector<BufferType>* color=NULL,
std::vector<BufferType>* flat_normal=NULL,
std::vector<BufferType>* gourod_normal=NULL) :
std::vector<BufferType>* gouraud_normal=NULL) :
m_pos_buffer(pos),
m_index_buffer(indices),
m_bb(bbox),
m_color_buffer(color),
m_flat_normal_buffer(flat_normal),
m_gourod_normal_buffer(gourod_normal),
m_gouraud_normal_buffer(gouraud_normal),
m_face_started(false)
{}
void clear()
{
if (m_pos_buffer!=NULL) { m_pos_buffer->clear(); }
if (m_color_buffer!=NULL) { m_color_buffer->clear(); }
if (m_index_buffer!=NULL) { m_index_buffer->clear(); }
if (m_flat_normal_buffer!=NULL) { m_flat_normal_buffer->clear(); }
if (m_gourod_normal_buffer!=NULL) { m_gourod_normal_buffer->clear(); }
if (m_pos_buffer!=NULL) { m_pos_buffer->clear(); }
if (m_color_buffer!=NULL) { m_color_buffer->clear(); }
if (m_index_buffer!=NULL) { m_index_buffer->clear(); }
if (m_flat_normal_buffer!=NULL) { m_flat_normal_buffer->clear(); }
if (m_gouraud_normal_buffer!=NULL) { m_gouraud_normal_buffer->clear(); }
}
bool is_empty() const
@ -151,7 +164,7 @@ public:
(m_pos_buffer!=NULL && m_pos_buffer->empty()) &&
(m_color_buffer!=NULL || m_color_buffer->empty()) &&
(m_flat_normal_buffer!=NULL || m_flat_normal_buffer->empty()) &&
(m_gourod_normal_buffer!=NULL || m_gourod_normal_buffer->empty()) &&
(m_gouraud_normal_buffer!=NULL || m_gouraud_normal_buffer->empty()) &&
(m_index_buffer!=NULL || m_index_buffer->empty());
}
@ -167,8 +180,8 @@ public:
bool has_flat_normal() const
{ return m_flat_normal_buffer!=NULL; }
bool has_gourod_normal() const
{ return m_gourod_normal_buffer!=NULL; }
bool has_gouraud_normal() const
{ return m_gouraud_normal_buffer!=NULL; }
// 1.1) Add a point, without color. Return the index of the added point.
template<typename KPoint>
@ -177,9 +190,7 @@ public:
if (!has_position()) return (std::size_t)-1;
Local_point p=internal::get_local_point(kp);
m_pos_buffer->push_back(p.x());
m_pos_buffer->push_back(p.y());
m_pos_buffer->push_back(p.z());
add_point_in_buffer(p, *m_pos_buffer);
if (m_bb!=NULL)
{ (*m_bb)=(*m_bb)+p.bbox(); }
@ -200,18 +211,9 @@ public:
void add_indexed_point(T index)
{
if (!has_indices()) return;
m_index_buffer->push_back((IndexType)index);
}
// 1.4) Add an indexed point, with color.
template<typename T>
void add_indexed_point(T index, const CGAL::Color& c)
{
add_indexed_point(index);
add_color(c);
}
// 2.1) Add a segment, without color.
template<typename KPoint>
void add_segment(const KPoint& kp1, const KPoint& kp2)
@ -236,15 +238,6 @@ public:
add_indexed_point(index1);
add_indexed_point(index2);
}
// 2.4) Add an indexed segment, with color.
template<typename T>
void add_indexed_segment(T index1, T index2, const CGAL::Color& c)
{
add_indexed_segment(index1, index2);
add_color(c);
add_color(c);
}
/// @return true iff a face has begun.
bool is_a_face_started() const
@ -279,7 +272,7 @@ public:
}
/// Add a point at the end of the current face, without giving the vertex normal.
/// When this method is used, it is not possible to use the Gourod shading.
/// When this method is used, it is not possible to use the Gouraud shading.
/// @param p the point to add
template<typename KPoint>
bool add_point_in_face(const KPoint& kp)
@ -297,7 +290,7 @@ public:
/// Add a point at the end of the current face
/// @param p the point to add
/// @p_normal the vertex normal at this point (for Gourod shading)
/// @p_normal the vertex normal at this point (for Gouraud shading)
template<typename KPoint, typename KVector>
bool add_point_in_face(const KPoint& kp, const KVector& p_normal)
{
@ -310,7 +303,8 @@ public:
}
/// Add an indexed point at the end of the current face, without giving the vertex normal.
/// When this method is used, it is not possible to use the Gourod shading.
/// When Indexation is used, it is not possible to use flat shading or multiple colors
/// for face sor edges.
/// Note that we still need the point itself, in order to triangulate the face when necessary.
template<typename T, typename KPoint>
bool add_indexed_point_in_face(T index, const KPoint& kp)
@ -323,21 +317,6 @@ public:
return false;
}
/// Add a point at the end of the current face
/// @param index the index of the point to add
/// @param p the point to add
/// @p_normal the vertex normal at this point (for Gourod shading)
template<typename T, typename KPoint, typename KVector>
bool add_indexed_point_in_face(T index, const KPoint& kp, const KVector& p_normal)
{
if (add_point_in_face(kp, p_normal))
{
m_indices_of_points_of_face.push_back(index);
return true;
}
return false;
}
/// End the face: compute the triangulation.
void face_end()
{
@ -367,7 +346,8 @@ public:
m_vertex_normals_for_face.size()!=m_points_of_face.size())
{
std::cerr<<"PB: you only gave some vertex normals (and not all) for a same face. "
<<" All vertex normal are ignored and thus it is not possible to use Gourod shading for this face."
<<"All vertex normal are ignored and thus it is not possible to use Gouraud "
<<"shading for this face."
<<std::endl;
m_vertex_normals_for_face.clear();
}
@ -392,6 +372,96 @@ public:
m_face_started=false;
}
/// adds `kp` coordinates to `buffer`
template<typename KPoint>
static void add_point_in_buffer(const KPoint& kp, std::vector<float>& buffer)
{
Local_point p=internal::get_local_point(kp);
buffer.push_back(p.x());
buffer.push_back(p.y());
buffer.push_back(p.z());
}
/// adds `kv` coordinates to `buffer`
template<typename KVector>
static void add_normal_in_buffer(const KVector& kv, std::vector<float>& buffer)
{
Local_vector n=internal::get_local_vector(kv);
buffer.push_back(n.x());
buffer.push_back(n.y());
buffer.push_back(n.z());
}
///adds `acolor` RGB components to `buffer`
static void add_color_in_buffer(const CGAL::Color& acolor, std::vector<float>& buffer)
{
buffer.push_back((float)acolor.red()/(float)255);
buffer.push_back((float)acolor.green()/(float)255);
buffer.push_back((float)acolor.blue()/(float)255);
}
/// @return true iff the points of 'facet' form a convex face
static bool is_facet_convex(const std::vector<Local_point>& facet,
const Local_vector& N)
{
typedef Local_kernel::Orientation Orientation;
Orientation orientation;
Local_vector normal = N;
bool normal_is_ok;
std::size_t id = 0;
do{
normal_is_ok = true;
//Initializes the facet orientation
Local_point S,T;
S = facet[id];
T = facet[id+1];
Local_vector V1 = Local_vector((T-S).x(), (T-S).y(), (T-S).z());
S = T;
T = facet[id+2];
Local_vector V2 = Local_vector((T-S).x(), (T-S).y(), (T-S).z());
if(normal == Local_vector(0,0,0))
normal_is_ok = false;
if(normal_is_ok)
{
orientation = Local_kernel::Orientation_3()(V1, V2, normal);
if( orientation == CGAL::COPLANAR )
normal_is_ok = false;
}
//Checks if the normal is good : if the normal is null
// or if it is coplanar to the facet, we need another one.
if(!normal_is_ok)
{
normal = CGAL::cross_product(V1,V2);
}
}while( ++id != facet.size() && !normal_is_ok);
//if no good normal can be found, stop here.
if (!normal_is_ok)
return false;
//computes convexness
//re-initializes he_end;
for(id=0; id<facet.size(); ++id)
{
Local_point S,T;
S = facet[id%facet.size()];
T = facet[(id+1)%facet.size()];
Local_vector V1 = Local_vector((T-S).x(), (T-S).y(), (T-S).z());
S = T;
T = facet[(id+2)%facet.size()];
Local_vector V2 = Local_vector((T-S).x(), (T-S).y(), (T-S).z());
Orientation res = Local_kernel::Orientation_3()(V1, V2, normal) ;
if(res!= orientation && res != CGAL::ZERO)
return false;
}
return true;
}
protected:
void face_begin_internal(bool has_color, bool has_normal)
{
@ -414,40 +484,34 @@ protected:
{
for (int i=0; i<3; ++i)
{
add_point(m_points_of_face[i]); // Add the position of the point
// If user gave vertex indices
if (m_indices_of_points_of_face.size()>0)
{
add_indexed_point(m_indices_of_points_of_face[i]);
}
else
{
add_point(m_points_of_face[i]); // Add the position of the point
if (m_started_face_is_colored)
{ add_color(m_color_of_face); } // Add the color
add_flat_normal(normal); // Add the flat normal
// If user gave vertex indices
if (m_indices_of_points_of_face.size()>0)
{ add_indexed_point(m_indices_of_points_of_face[i]); }
// Its smooth normal (if given by the user)
if (m_vertex_normals_for_face.size()>0)
{ // Here we have 3 vertex normals; we can use Gourod
add_gourod_normal(m_vertex_normals_for_face[i]);
{ // Here we have 3 vertex normals; we can use Gouraud
add_gouraud_normal(m_vertex_normals_for_face[i]);
}
else
{ // Here user does not provide all vertex normals: we use face normal istead
// and thus we will not be able to use Gourod
add_gourod_normal(normal);
// and thus we will not be able to use Gouraud
add_gouraud_normal(normal);
}
}
}
}
void convex_quadrangular_face_end_internal(const Local_vector& normal)
{
// (1) add points
add_point(m_points_of_face[0]);
add_point(m_points_of_face[1]);
add_point(m_points_of_face[2]);
add_point(m_points_of_face[0]);
add_point(m_points_of_face[2]);
add_point(m_points_of_face[3]);
// (2) Add indices when they exist
// Add indices when they exist
if (m_indices_of_points_of_face.size()>0)
{
add_indexed_point(m_indices_of_points_of_face[0]);
@ -458,19 +522,30 @@ protected:
add_indexed_point(m_indices_of_points_of_face[2]);
add_indexed_point(m_indices_of_points_of_face[3]);
}
// (3) Add flat and smooth normals and color
for(unsigned int i=0; i<6; ++i)
else
{
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
// (1) add points
add_point(m_points_of_face[0]);
add_point(m_points_of_face[1]);
add_point(m_points_of_face[2]);
add_flat_normal(normal);
if (m_vertex_normals_for_face.size()>0)
{ add_gourod_normal(m_vertex_normals_for_face[i]); }
else
{ add_gourod_normal(normal); }
add_point(m_points_of_face[0]);
add_point(m_points_of_face[2]);
add_point(m_points_of_face[3]);
// (2) Add flat and smooth normals and color
for(unsigned int i=0; i<6; ++i)
{
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
add_flat_normal(normal);
if (m_vertex_normals_for_face.size()>0)
{ add_gouraud_normal(m_vertex_normals_for_face[i]); }
else
{ add_gouraud_normal(normal); }
}
}
}
@ -478,41 +553,43 @@ protected:
{
for(std::size_t i=1; i<m_points_of_face.size()-1; ++i)
{
Local_point& p0 = m_points_of_face[0];
Local_point& p1 = m_points_of_face[i];
Local_point& p2 = m_points_of_face[i+1];
// (1) add points
add_point(p0);
add_point(p1);
add_point(p2);
// (2) Add indices when they exist
// Add indices when they exist
if (m_indices_of_points_of_face.size()>0)
{
add_indexed_point(m_indices_of_points_of_face[0]);
add_indexed_point(m_indices_of_points_of_face[i]);
add_indexed_point(m_indices_of_points_of_face[i+1]);
}
// (3) Add flat normal and color
for(unsigned int j=0; j<3; ++j)
else
{
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
Local_point& p0 = m_points_of_face[0];
Local_point& p1 = m_points_of_face[i];
Local_point& p2 = m_points_of_face[i+1];
add_flat_normal(normal);
// (1) add points
add_point(p0);
add_point(p1);
add_point(p2);
if (m_vertex_normals_for_face.size()==0)
{ add_gourod_normal(normal); } // No smooth normal, we use the flat one instead
}
// (2) Add flat normal and color
for(unsigned int j=0; j<3; ++j)
{
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
// (4) Add smooth normals if they exist
if (m_vertex_normals_for_face.size()>0)
{
add_gourod_normal(m_vertex_normals_for_face[0]);
add_gourod_normal(m_vertex_normals_for_face[i]);
add_gourod_normal(m_vertex_normals_for_face[i+1]);
add_flat_normal(normal);
if (m_vertex_normals_for_face.size()==0)
{ add_gouraud_normal(normal); } // No smooth normal, we use the flat one instead
}
// (3) Add smooth normals if they exist
if (m_vertex_normals_for_face.size()>0)
{
add_gouraud_normal(m_vertex_normals_for_face[0]);
add_gouraud_normal(m_vertex_normals_for_face[i]);
add_gouraud_normal(m_vertex_normals_for_face[i+1]);
}
}
}
}
@ -614,24 +691,25 @@ protected:
{
if(!ffit->info().is_external)
{
for(int i=0; i<3; ++i)
{
// (1) add point
add_point(ffit->vertex(i)->point());
// (2) Add indices when they exist
for(unsigned int i=0; i<3; ++i)
{
// Add indices when they exist
if (m_indices_of_points_of_face.size()>0)
{ add_indexed_point(ffit->vertex(i)->info().index); }
else
{
// (1) add point
add_point(ffit->vertex(i)->point());
// (2) Add face color
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
// (3) Add face color
if (m_started_face_is_colored)
{ add_color(m_color_of_face); }
// (4) Add flat normal
add_flat_normal(normal);
// (5) Add smooth normals (or flat if smooth normals do not exist)
add_gourod_normal(ffit->vertex(i)->info().v);
// (3) Add flat normal
add_flat_normal(normal);
// (4) Add smooth normals (or flat if smooth normals do not exist)
add_gouraud_normal(ffit->vertex(i)->info().v);
}
}
}
}
@ -645,89 +723,28 @@ protected:
/// @return true iff the current face is convex
bool is_current_face_convex(const Local_vector& N) const
{
typedef Local_kernel::Orientation Orientation;
Orientation orientation;
Local_vector normal=N;
bool normal_is_ok=true;
std::size_t id=0;
do
{
normal_is_ok=true;
//Initializes the facet orientation
const Local_point& S=m_points_of_face[id];
const Local_point& T=m_points_of_face[id+1];
Local_vector V1=Local_vector((T-S).x(), (T-S).y(), (T-S).z());
const Local_point& U=m_points_of_face[id+2];
Local_vector V2=Local_vector((U-T).x(), (U-T).y(), (U-T).z());
if(normal==Local_vector(0,0,0))
{ normal_is_ok=false; }
else
{
orientation=Local_kernel::Orientation_3()(V1, V2, normal);
if(orientation==CGAL::COPLANAR)
{ normal_is_ok=false; }
}
//Checks if the normal is good : if the normal is null
// or if it is coplanar to the facet, we need another one.
if(!normal_is_ok)
{ normal=CGAL::cross_product(V1,V2); }
}
while(++id!=m_points_of_face.size() && !normal_is_ok);
//if no good normal can be found, stop here.
if (!normal_is_ok)
{ return false; }
//computes convexness
for(id=0; id<m_points_of_face.size(); ++id)
{
const Local_point& S=m_points_of_face[id];
const Local_point& T=m_points_of_face[(id+1)%m_points_of_face.size()];
Local_vector V1=Local_vector((T-S).x(), (T-S).y(), (T-S).z());
const Local_point& U=m_points_of_face[(id+2)%m_points_of_face.size()];
Local_vector V2=Local_vector((U-T).x(), (U-T).y(), (U-T).z());
Orientation res=Local_kernel::Orientation_3()(V1, V2, normal) ;
if(res!= orientation && res!=CGAL::ZERO)
{ return false; }
}
return true;
return is_facet_convex(m_points_of_face, N);
}
void add_color(const CGAL::Color& acolor)
{
if (m_color_buffer!=NULL)
{
m_color_buffer->push_back((float)acolor.red()/(float)255);
m_color_buffer->push_back((float)acolor.green()/(float)255);
m_color_buffer->push_back((float)acolor.blue()/(float)255);
}
{ add_color_in_buffer(acolor, *m_color_buffer); }
}
template<typename KVector>
void add_normal_in_buffer(const KVector& kv, std::vector<float>* buffer)
void add_flat_normal(const KVector& kv)
{
if (buffer!=NULL)
{
Local_vector n=internal::get_local_vector(kv);
buffer->push_back(n.x());
buffer->push_back(n.y());
buffer->push_back(n.z());
}
if(m_flat_normal_buffer != NULL)
{ add_normal_in_buffer(kv, *m_flat_normal_buffer); }
}
template<typename KVector>
void add_flat_normal(const KVector& kv)
{ add_normal_in_buffer(kv, m_flat_normal_buffer); }
template<typename KVector>
void add_gourod_normal(const KVector& kv)
{ add_normal_in_buffer(kv, m_gourod_normal_buffer); }
void add_gouraud_normal(const KVector& kv)
{
if(m_gouraud_normal_buffer != NULL)
{ add_normal_in_buffer(kv, *m_gouraud_normal_buffer); }
}
protected:
// Types usefull for triangulation
@ -757,7 +774,7 @@ protected:
std::vector<IndexType>* m_index_buffer;
std::vector<BufferType>* m_color_buffer;
std::vector<BufferType>* m_flat_normal_buffer;
std::vector<BufferType>* m_gourod_normal_buffer;
std::vector<BufferType>* m_gouraud_normal_buffer;
CGAL::Bbox_3* m_bb;
@ -772,4 +789,4 @@ protected:
Local_vector m_normal_of_face;
};
#endif // CGAL_BUFFER_FOR_VAO_H
#endif // CGAL_VBO_BUFFER_FILLER_H

View File

@ -35,6 +35,7 @@
#include <CGAL/Buffer_for_vao.h>
#include <CGAL/Qt/CreateOpenGLContext.h>
#include <CGAL/Random.h>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Local_kernel;
typedef Local_kernel::Point_3 Local_point;
@ -117,6 +118,19 @@ const char fragment_source_p_l[] =
"\n"
};
//------------------------------------------------------------------------------
inline CGAL::Color get_random_color(CGAL::Random& random)
{
CGAL::Color res;
do
{
res=CGAL::Color(random.get_int(0,256),
random.get_int(0,256),
random.get_int(0,256));
}
while(res.red()==255 && res.green()==255 && res.blue()==255);
return res;
}
//------------------------------------------------------------------------------
class Basic_viewer_qt : public QGLViewer, public QOpenGLFunctions_2_1
{
public:
@ -137,25 +151,31 @@ public:
m_ambient_color(0.6f, 0.5f, 0.5f, 0.5f),
m_are_buffers_initialized(false),
m_buffer_for_mono_points(&arrays[POS_MONO_POINTS],
NULL,
&m_bounding_box,
NULL, NULL, NULL),
m_buffer_for_colored_points(&arrays[POS_COLORED_POINTS],
NULL,
&m_bounding_box,
&arrays[COLOR_POINTS],
NULL, NULL),
m_buffer_for_mono_segments(&arrays[POS_MONO_SEGMENTS],
NULL,
&m_bounding_box,
NULL, NULL, NULL),
m_buffer_for_colored_segments(&arrays[POS_COLORED_SEGMENTS],
NULL,
&m_bounding_box,
&arrays[COLOR_SEGMENTS],
NULL, NULL),
m_buffer_for_mono_faces(&arrays[POS_MONO_FACES],
NULL,
&m_bounding_box,
NULL,
&arrays[FLAT_NORMAL_MONO_FACES],
&arrays[SMOOTH_NORMAL_MONO_FACES]),
m_buffer_for_colored_faces(&arrays[POS_COLORED_FACES],
NULL,
&m_bounding_box,
&arrays[COLOR_FACES],
&arrays[FLAT_NORMAL_COLORED_FACES],