1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CAMERA_H__
#define __CAMERA_H__
#include "kernel_types.h"
#include "util_boundbox.h"
#include "util_transform.h"
#include "util_types.h"
CCL_NAMESPACE_BEGIN
class Device;
class DeviceScene;
class Scene;
/* Camera
*
* The camera parameters are quite standard, tested to be both compatible with
* Renderman, and Blender after remapping.
*/
class Camera {
public:
/* Specifies an offset for the shutter's time interval. */
enum MotionPosition {
/* Shutter opens at the current frame. */
MOTION_POSITION_START = 0,
/* Shutter is fully open at the current frame. */
MOTION_POSITION_CENTER = 1,
/* Shutter closes at the current frame. */
MOTION_POSITION_END = 2,
MOTION_NUM_POSITIONS,
};
/* Specifies rolling shutter effect. */
enum RollingShutterType {
/* No rolling shutter effect. */
ROLLING_SHUTTER_NONE = 0,
/* Sensor is being scanned vertically from top to bottom. */
ROLLING_SHUTTER_TOP = 1,
ROLLING_SHUTTER_NUM_TYPES,
};
/* Stereo Type */
enum StereoEye {
STEREO_NONE,
STEREO_LEFT,
STEREO_RIGHT,
};
/* motion blur */
float shuttertime;
MotionPosition motion_position;
float shutter_curve[RAMP_TABLE_SIZE];
size_t shutter_table_offset;
/* ** Rolling shutter effect. ** */
/* Defines rolling shutter effect type. */
RollingShutterType rolling_shutter_type;
/* Specifies exposure time of scanlines when using
* rolling shutter effect.
*/
float rolling_shutter_duration;
/* depth of field */
float focaldistance;
float aperturesize;
uint blades;
float bladesrotation;
/* type */
CameraType type;
float fov;
/* panorama */
PanoramaType panorama_type;
float fisheye_fov;
float fisheye_lens;
float latitude_min;
float latitude_max;
float longitude_min;
float longitude_max;
/* panorama stereo */
StereoEye stereo_eye;
bool use_spherical_stereo;
float interocular_distance;
float convergence_distance;
bool use_pole_merge;
float pole_merge_angle_from;
float pole_merge_angle_to;
/* anamorphic lens bokeh */
float aperture_ratio;
/* sensor */
float sensorwidth;
float sensorheight;
/* clipping */
float nearclip;
float farclip;
/* screen */
int width, height;
int resolution;
BoundBox2D viewplane;
/* width and height change during preview, so we need these for calculating dice rates. */
int full_width, full_height;
/* border */
BoundBox2D border;
BoundBox2D viewport_camera_border;
/* transformation */
Transform matrix;
/* motion */
MotionTransform motion;
bool use_motion, use_perspective_motion;
float fov_pre, fov_post;
PerspectiveMotionTransform perspective_motion;
/* computed camera parameters */
Transform screentoworld;
Transform rastertoworld;
Transform ndctoworld;
Transform cameratoworld;
Transform worldtoraster;
Transform worldtoscreen;
Transform worldtondc;
Transform worldtocamera;
Transform rastertocamera;
Transform cameratoraster;
float3 dx;
float3 dy;
float3 full_dx;
float3 full_dy;
/* update */
bool need_update;
bool need_device_update;
bool need_flags_update;
int previous_need_motion;
/* functions */
Camera();
~Camera();
void compute_auto_viewplane();
void update();
void device_update(Device *device, DeviceScene *dscene, Scene *scene);
void device_update_volume(Device *device, DeviceScene *dscene, Scene *scene);
void device_free(Device *device, DeviceScene *dscene, Scene *scene);
bool modified(const Camera& cam);
bool motion_modified(const Camera& cam);
void tag_update();
/* Public utility functions. */
BoundBox viewplane_bounds_get();
/* Calculates the width of a pixel at point in world space. */
float world_to_raster_size(float3 P);
private:
/* Private utility functions. */
float3 transform_raster_to_world(float raster_x, float raster_y);
};
CCL_NAMESPACE_END
#endif /* __CAMERA_H__ */
|