Source which does a unary operation to another one. More...
#include <OgreVolumeCSGSource.h>
Public Member Functions | |
bool | getFirstRayIntersection (const Ray &ray, Vector3 &result, Real scale=(Real) 1.0, size_t maxIterations=5000, Real maxDistance=(Real) 10000.0) const |
Gets the first intersection of a ray with the volume. | |
virtual const Source * | getSource (void) const |
Gets the source. | |
virtual Real | getValue (const Vector3 &position) const =0 |
Gets the density value at a specific position. | |
virtual Vector4 | getValueAndGradient (const Vector3 &position) const =0 |
Gets the density value and gradient at a specific position. | |
Real | getVolumeSpaceToWorldSpaceFactor (void) const |
Gets a factor to come from volume coordinate to world coordinate. | |
void | serialize (const Vector3 &from, const Vector3 &to, float voxelWidth, const String &file) |
Serializes a volume source to a discrete grid file with deflated compression. | |
void | serialize (const Vector3 &from, const Vector3 &to, float voxelWidth, Real maxClampedAbsoluteDensity, const String &file) |
Same as the other serialize function but with a user definable maximum absolute density value. | |
virtual void | setSource (Source *a) |
Sets the source. | |
Static Public Attributes | |
static const size_t | SERIALIZATION_CHUNK_SIZE |
The amount of items being written as one chunk during serialization. | |
static const uint32 | VOLUME_CHUNK_ID |
The id of volume files. | |
static const uint16 | VOLUME_CHUNK_VERSION |
The version of volume files. | |
Protected Member Functions | |
CSGUnarySource (const Source *src) | |
Constructor. | |
CSGUnarySource (void) | |
Constructor. | |
virtual Vector3 | getIntersectionEnd (const Ray &ray, Real maxDistance) const |
Gets the end vector of an intersection. | |
virtual Vector3 | getIntersectionStart (const Ray &ray, Real maxDistance) const |
Gets the start vector of an intersection. | |
Protected Attributes | |
const Source * | mSrc |
The first operant. | |
Source which does a unary operation to another one.
Definition at line 301 of file OgreVolumeCSGSource.h.
Constructor.
Protected to be callable from child classes.
src | The operator. |
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protected |
Constructor.
Sets the source to null. Protected to be callable from child classes.
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inherited |
Gets the first intersection of a ray with the volume.
If you are using this together with the VolumeChunk: Beware of the possible scaling or other transformations you did on the Chunk! Do the inverse first on the ray origin. Example of a scaling with the factor 10: ray.setOrigin(ray.getOrigin() / (Real)10.0);
ray | The ray. |
result | Will hold the intersection point if there is an intersection. |
scale | The scaling of the volume compared to the world. |
maxIterations | The maximum amount of iterations on the ray before giving up. |
maxDistance | The maximum distance of the intersection point. |
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protectedvirtualinherited |
Gets the end vector of an intersection.
This is needed for restricted volumes like discreet grids.
ray | The ray of the intersection. |
maxDistance | The maximum distance to query the ray for intersections. |
Reimplemented in Ogre::Volume::GridSource.
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protectedvirtualinherited |
Gets the start vector of an intersection.
This is needed for restricted volumes like discreet grids.
ray | The ray of the intersection. |
maxDistance | The maximum distance to query the ray for intersections. |
Reimplemented in Ogre::Volume::GridSource.
Gets the source.
Gets the density value at a specific position.
position | The position. |
Implemented in Ogre::Volume::CacheSource, Ogre::Volume::CSGSphereSource, Ogre::Volume::CSGPlaneSource, Ogre::Volume::CSGCubeSource, Ogre::Volume::CSGIntersectionSource, Ogre::Volume::CSGUnionSource, Ogre::Volume::CSGDifferenceSource, Ogre::Volume::CSGNegateSource, Ogre::Volume::CSGScaleSource, Ogre::Volume::CSGNoiseSource, and Ogre::Volume::GridSource.
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pure virtualinherited |
Gets the density value and gradient at a specific position.
position | The position. |
Implemented in Ogre::Volume::CacheSource, Ogre::Volume::CSGSphereSource, Ogre::Volume::CSGPlaneSource, Ogre::Volume::CSGCubeSource, Ogre::Volume::CSGIntersectionSource, Ogre::Volume::CSGUnionSource, Ogre::Volume::CSGDifferenceSource, Ogre::Volume::CSGNegateSource, Ogre::Volume::CSGScaleSource, Ogre::Volume::CSGNoiseSource, and Ogre::Volume::GridSource.
Referenced by Ogre::Volume::CacheSource::getFromCache().
Gets a factor to come from volume coordinate to world coordinate.
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inherited |
Serializes a volume source to a discrete grid file with deflated compression.
To achieve better compression, all density values are clamped within a maximum absolute value of (to - from).length() / 16.0. The values are scanned in this inner-loop-order: z, x, y. y last because there is usually the least isosurface intersection to be expected in the use case of terrain and so more often the maximum density value hit. The values are written as 16 Bit floats to save space. Note that this process is not lossless, the tradeoff is between accuracy of the source-reproduction (smaller voxelWidth) and smaller filesize (bigger voxelWidth).
from | The start point to scan the volume. |
to | The end point to scan the volume. |
voxelWidth | The width of a single cube in the density grid. |
file | The file to write the grid to. |
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inherited |
Same as the other serialize function but with a user definable maximum absolute density value.
from | The start point to scan the volume. |
to | The end point to scan the volume. |
voxelWidth | The width of a single cube in the density grid. |
maxClampedAbsoluteDensity | The maximum absolute density value to be written into the file, influencing the compression rate. |
file | The file to write the grid to. |
Sets the source.
a | The source. |
The first operant.
Definition at line 306 of file OgreVolumeCSGSource.h.
The amount of items being written as one chunk during serialization.
Definition at line 76 of file OgreVolumeSource.h.
The id of volume files.
Definition at line 70 of file OgreVolumeSource.h.
The version of volume files.
Definition at line 73 of file OgreVolumeSource.h.
Copyright © 2012 Torus Knot Software Ltd
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