#include "sio2.h"
| unsigned char sio2CameraCubeInFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v, | |||
| vec3 * | _dim | |||
| ) |
Determine whether or not a cube is inside the frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: A 3D position in world coordinate, representing the pivot point of the cube.
_dim: The XYZ size from its origin.
return 1 if the point is inside the frustum, else return 0.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
| unsigned char sio2CameraCubeIntersectFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v, | |||
| vec3 * | _dim | |||
| ) |
Determine where is a cube from the SIO2camera frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: A 3D position in world coordinate, representing the pivot point of the cube.
_dim: The XYZ size from its origin.
return 0 if it is outside.
return 1 if it intersect the frustum.
return 2 if it is inside the frustum.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
| SIO2camera* sio2CameraFree | ( | SIO2camera * | _SIO2camera | ) |
Free a previously initialized SIO2camera structure from the memory. The SIO2camera will be removed from the global sio2 SIO2resource handle.
_SIO2camera: The SIO2camera handle to remove.
return a NULL SIO2camera pointer.
References SIO2::_SIO2resource, sio2, SIO2_CAMERA, and sio2ResourceDel().
Referenced by sio2ResourceUnload().
| unsigned char sio2CameraGeometryInFrustum | ( | SIO2camera * | _SIO2camera, | |
| unsigned int | _nvert, | |||
| float * | _vert | |||
| ) |
Determine if a geometry constructed from point cloud is inside the frustum.
_SIO2camera: A valid SIO2camera pointer.
_nvert: The number of vertices.
_vert: An array of vertices ordered in a standard XYZ fashion for every vertice.
return 1 if inside, 0 if not.
References SIO2camera::frustum.
| void sio2CameraGetModelviewMatrix | ( | SIO2camera * | _SIO2camera | ) |
Get the current OpenGL modelview matrix.
_SIO2camera: A valid SIO2camera pointer.
References SIO2camera::mat_modelview.
| void sio2CameraGetProjectionMatrix | ( | SIO2camera * | _SIO2camera | ) |
Get the current OpenGL projection matrix.
_SIO2camera: A valid SIO2camera pointer.
References SIO2camera::mat_projection.
| SIO2camera* sio2CameraInit | ( | char * | _name | ) |
Initialize a new SIO2camera structure. This new SIO2camera will be added to the global sio2 SIO2resource handle.
_name: The name to use for the new SIO2camera.
return a new SIO2camera structure pointer.
References SIO2::_SIO2resource, SIO2camera::_SIO2transform, SIO2camera::name, sio2, SIO2_CAMERA, sio2ResourceAdd(), sio2StringCpy(), sio2TransformLoadIdentity(), SIO2camera::up_vector, vec3::x, vec3::y, and vec3::z.
Referenced by sio2CameraLoad().
Function callback used by the parser to parse an SIO2camera file.
_root: The root token.
_tok: The current token to parse.
_val: The value of the token.
return 1 or 0 if the token have been found.
References SIO2::_SIO2camera, SIO2camera::_SIO2transform, SIO2camera::cend, SIO2camera::cstart, SIO2transform::dir, SIO2camera::fov, SIO2camera::iponame, SIO2transform::loc, sio2, SIO2_MAX_CHAR, sio2CameraInit(), sio2StringCmp(), sio2StringScanf(), vec3::x, vec3::y, and vec3::z.
Referenced by sio2ResourceCreateDictionary().
| unsigned char sio2CameraPointInFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v | |||
| ) |
Determine whether or not a 3D point is inside the frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: A 3D point in world coordinate.
return 1 if the point is inside the frustum, else return 0.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
| void sio2CameraRender | ( | SIO2camera * | _SIO2camera | ) |
Render an SIO2camera based on its current transformation information. Please take note that the SIO2camera render function is a lite version of sio2LookAt. It is build around the same concept at the exception that no extensive check or normalization is done on the vector. And it assume that the data have already been properly set. The main information needed by this function in order to render the SIO2camera properly is the SIO2transform->loc which represent the camera position in world space. And SIO2transform->dir that represent a normalized direction vector. In addition, as no extensive checks are done, if you are experiencing issues (in example your SIO2camera is looking straight down on the negative axis of the direction vector) please use sio2LookAt, that is basically the same implementation as the well known gluLookAt function.
_SIO2camera: A valid SIO2camera pointer.
References SIO2camera::_SIO2ipo, SIO2ipo::_SIO2transform, SIO2camera::_SIO2transform, SIO2transform::dir, SIO2transform::loc, SIO2transform::mat, SIO2transform::rot, SIO2_PLAY, sio2Rotate3D(), sio2TransformRender(), sio2TransformSetLoc(), sio2TransformSetRot(), sio2Vec3Diff(), SIO2ipo::state, SIO2camera::up_vector, vec3::x, vec3::y, and vec3::z.
| float sio2CameraSphereDistInFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v, | |||
| float | _r | |||
| ) |
Get the distance of a sphere located inside the SIO2camera frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: The position in world space, representing the pivot point of the sphere.
_r: The radius of the sphere.
return the distance of the sphere within the frustum. Instead return 0.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
Referenced by sio2ResourceCull().
| unsigned char sio2CameraSphereInFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v, | |||
| float | _r | |||
| ) |
Determine whether or not a sphere is inside the frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: A 3D point in world coordinate, representing the pivot point of the sphere.
_r: The radius of the sphere.
return 1 if the point is inside the frustum, else return 0.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
| unsigned char sio2CameraSphereIntersectFrustum | ( | SIO2camera * | _SIO2camera, | |
| vec3 * | _v, | |||
| float | _r | |||
| ) |
Determine where is a sphere from the SIO2camera frustum.
_SIO2camera: A valid SIO2camera pointer.
_v: The position in world space, representing the pivot point of the sphere.
_r: The radius of the sphere.
return 0 if it is outside.
return 1 if it intersect the frustum.
return 2 if it is inside the frustum.
References SIO2camera::frustum, vec3::x, vec3::y, and vec3::z.
| void sio2CameraUpdateFrustum | ( | SIO2camera * | _SIO2camera | ) |
Update the SIO2camera frustum information (6 clipping planes) based on the current SIO2camera modelview and projection matrix.
_SIO2camera: A valid SIO2camera pointer.
References SIO2camera::frustum, SIO2camera::mat_modelview, and SIO2camera::mat_projection.
1.5.6