historical/toontown-classic.git/panda/include/geomPatches.h
2024-01-16 11:20:27 -06:00

73 lines
1.9 KiB
C++

/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file geomPatches.h
* @author drose
* @date 2012-04-27
*/
#ifndef GEOMPATCHES_H
#define GEOMPATCHES_H
#include "pandabase.h"
#include "geomPrimitive.h"
/**
* Defines a series of "patches", fixed-size groupings of vertices that must
* be processed by a tessellation shader.
*/
class EXPCL_PANDA_GOBJ GeomPatches : public GeomPrimitive {
PUBLISHED:
explicit GeomPatches(int num_vertices_per_patch, UsageHint usage_hint);
GeomPatches(const GeomPatches &copy);
virtual ~GeomPatches();
ALLOC_DELETED_CHAIN(GeomPatches);
public:
virtual PT(GeomPrimitive) make_copy() const;
virtual PrimitiveType get_primitive_type() const;
virtual int get_num_vertices_per_primitive() const;
public:
virtual bool draw(GraphicsStateGuardianBase *gsg,
const GeomPrimitivePipelineReader *reader,
bool force) const;
private:
int _num_vertices_per_patch;
public:
static void register_with_read_factory();
virtual void write_datagram(BamWriter *manager, Datagram &dg);
protected:
void fillin(DatagramIterator &scan, BamReader *manager);
static TypedWritable *make_from_bam(const FactoryParams &params);
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
GeomPrimitive::init_type();
register_type(_type_handle, "GeomPatches",
GeomPrimitive::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
friend class Geom;
};
#endif