Panda3D

lwoSurfaceBlockOpacity.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 lwoSurfaceBlockOpacity.h
10 * @author drose
11 * @date 2001-04-24
12 */
13
14 #ifndef LWOSURFACEBLOCKOPACITY_H
15 #define LWOSURFACEBLOCKOPACITY_H
16
17 #include "pandatoolbase.h"
18
19 #include "lwoChunk.h"
20
21 /**
22 * Indicates how transparent or opaque this particular layer is in relation to
23 * the layers beneath it. This is a subchunk of LwoSurfaceBlockHeader.
24 */
25 class LwoSurfaceBlockOpacity : public LwoChunk {
26 public:
27 enum Type {
28 T_additive = 0,
29 T_subtractive = 1,
30 T_difference = 2,
31 T_multiply = 3,
32 T_divide = 4,
33 T_alpha = 5,
34 T_texture_displacement = 6
35 };
36
37 Type _type;
38 PN_stdfloat _opacity;
39 int _envelope;
40
41 public:
42 virtual bool read_iff(IffInputFile *in, size_t stop_at);
43 virtual void write(std::ostream &out, int indent_level = 0) const;
44
45 public:
46 virtual TypeHandle get_type() const {
47 return get_class_type();
48 }
49 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
50 static TypeHandle get_class_type() {
51 return _type_handle;
52 }
53 static void init_type() {
54 LwoChunk::init_type();
55 register_type(_type_handle, "LwoSurfaceBlockOpacity",
56 LwoChunk::get_class_type());
57 }
58
59 private:
60 static TypeHandle _type_handle;
61 };
62
63 #endif
IffInputFile
A wrapper around an istream used for reading an IFF file.
Definition: iffInputFile.h:30
LwoChunk
A specialization of IffChunk for Lightwave Object files.
Definition: lwoChunk.h:26
LwoSurfaceBlockOpacity
Indicates how transparent or opaque this particular layer is in relation to the layers beneath it.
Definition: lwoSurfaceBlockOpacity.h:25
LwoSurfaceBlockOpacity::read_iff
virtual bool read_iff(IffInputFile *in, size_t stop_at)
Reads the data of the chunk in from the given input file, if possible.
Definition: lwoSurfaceBlockOpacity.cxx:29
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
lwoChunk.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandatoolbase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22