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fltLightSourceDefinition.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file fltLightSourceDefinition.h
10 * @author drose
11 * @date 2000-08-26
12 */
13
14#ifndef FLTLIGHTSOURCEDEFINITION_H
15#define FLTLIGHTSOURCEDEFINITION_H
16
17#include "pandatoolbase.h"
18
19#include "fltRecord.h"
20
21#include "luse.h"
22
23/**
24 * Represents a single entry in the light source palette. This completely
25 * defines the color, etc. of a single light source, which may be referenced
26 * later by a FltLightSource bead in the hierarchy.
27 */
29public:
31
32 enum LightType {
33 LT_infinite = 0,
34 LT_local = 1,
35 LT_spot = 2
36 };
37
38 int _light_index;
39 std::string _light_name;
40 LColor _ambient;
41 LColor _diffuse;
42 LColor _specular;
43 LightType _light_type;
44 PN_stdfloat _exponential_dropoff;
45 PN_stdfloat _cutoff_angle; // in degrees
46
47 // yaw and pitch only for modeling lights, which are positioned at the
48 // eyepoint.
49 PN_stdfloat _yaw;
50 PN_stdfloat _pitch;
51
52 PN_stdfloat _constant_coefficient;
53 PN_stdfloat _linear_coefficient;
54 PN_stdfloat _quadratic_coefficient;
55 bool _modeling_light;
56
57protected:
58 virtual bool extract_record(FltRecordReader &reader);
59 virtual bool build_record(FltRecordWriter &writer) const;
60
61public:
62 virtual TypeHandle get_type() const {
63 return get_class_type();
64 }
65 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
66 static TypeHandle get_class_type() {
67 return _type_handle;
68 }
69 static void init_type() {
70 FltRecord::init_type();
71 register_type(_type_handle, "FltLightSourceDefinition",
72 FltRecord::get_class_type());
73 }
74
75private:
76 static TypeHandle _type_handle;
77
78 friend class FltHeader;
79};
80
81#endif
This is the first bead in the file, the top of the bead hierarchy, and the primary interface to readi...
Definition fltHeader.h:44
Represents a single entry in the light source palette.
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
The base class for all kinds of records in a MultiGen OpenFlight file.
Definition fltRecord.h:36
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...