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Tidying up...

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This commit is contained in:
David Williams 2008-06-25 20:16:58 +00:00
parent e6a7174b53
commit 9a58b83b6d
10 changed files with 155 additions and 109 deletions
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2
PolyVoxCore/CMakeLists.txt
View File

@ -20,6 +20,7 @@ SET(SRC_FILES
source/SurfaceVertex.cpp
source/Utility.cpp
source/VolumeChangeTracker.cpp
source/VoxelFilters.cpp
)
#Projects headers files
@ -50,6 +51,7 @@ SET(INC_FILES
include/Vector.h
include/Vector.inl
include/VolumeChangeTracker.h
include/VoxelFilters.h
)
FIND_PACKAGE(Boost REQUIRED)

2
PolyVoxCore/include/BlockVolumeIterator.h
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@ -43,10 +43,10 @@ namespace PolyVox
bool operator<=(const BlockVolumeIterator& rhs);
bool operator>=(const BlockVolumeIterator& rhs);
VoxelType getMaxedVoxel(boost::uint8_t uLevel) const;
boost::uint16_t getPosX(void) const;
boost::uint16_t getPosY(void) const;
boost::uint16_t getPosZ(void) const;
VoxelType getSubSampledVoxel(boost::uint8_t uLevel) const;
const BlockVolume<VoxelType>& getVolume(void) const;
VoxelType getVoxel(void) const;

38
PolyVoxCore/include/BlockVolumeIterator.inl
View File

@ -105,7 +105,25 @@ namespace PolyVox
#pragma region Getters
template <typename VoxelType>
VoxelType BlockVolumeIterator<VoxelType>::getMaxedVoxel(boost::uint8_t uLevel) const
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosX(void) const
{
return mXPosInVolume;
}
template <typename VoxelType>
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosY(void) const
{
return mYPosInVolume;
}
template <typename VoxelType>
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosZ(void) const
{
return mZPosInVolume;
}
template <typename VoxelType>
VoxelType BlockVolumeIterator<VoxelType>::getSubSampledVoxel(boost::uint8_t uLevel) const
{
if(uLevel == 0)
{
@ -142,24 +160,6 @@ namespace PolyVox
}
}
template <typename VoxelType>
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosX(void) const
{
return mXPosInVolume;
}
template <typename VoxelType>
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosY(void) const
{
return mYPosInVolume;
}
template <typename VoxelType>
boost::uint16_t BlockVolumeIterator<VoxelType>::getPosZ(void) const
{
return mZPosInVolume;
}
template <typename VoxelType>
const BlockVolume<VoxelType>& BlockVolumeIterator<VoxelType>::getVolume(void) const
{

2
PolyVoxCore/include/GradientEstimators.inl
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@ -19,7 +19,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
******************************************************************************/
#pragma endregion
#include "SurfaceAdjusters.h"
#include "VoxelFilters.h"
namespace PolyVox
{

1
PolyVoxCore/include/SurfaceAdjusters.h
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@ -33,7 +33,6 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
namespace PolyVox
{
POLYVOX_API void smoothRegionGeometry(BlockVolume<boost::uint8_t>* volumeData, RegionGeometry& regGeom);
float computeSmoothedVoxel(BlockVolumeIterator<boost::uint8_t>& volIter);
}
#endif

36
PolyVoxCore/include/VoxelFilters.h Normal file
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@ -0,0 +1,36 @@
#pragma region License
/******************************************************************************
This file is part of the PolyVox library
Copyright (C) 2006 David Williams
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
******************************************************************************/
#pragma endregion
#ifndef __PolyVox_VoxelFilters_H__
#define __PolyVox_VoxelFilters_H__
#pragma region Headers
#include "Constants.h"
#include "PolyVoxForwardDeclarations.h"
#include "TypeDef.h"
#pragma endregion
namespace PolyVox
{
float computeSmoothedVoxel(BlockVolumeIterator<boost::uint8_t>& volIter);
}
#endif

46
PolyVoxCore/source/SurfaceAdjusters.cpp
View File

@ -5,6 +5,7 @@
#include "IndexedSurfacePatch.h"
#include "RegionGeometry.h"
#include "Utility.h"
#include "VoxelFilters.h"
#include <vector>
@ -73,49 +74,4 @@ namespace PolyVox
++iterSurfaceVertex;
} //while(iterSurfaceVertex != vecVertices.end())
}
float computeSmoothedVoxel(BlockVolumeIterator<boost::uint8_t>& volIter)
{
assert(volIter.getPosX() >= 1);
assert(volIter.getPosY() >= 1);
assert(volIter.getPosZ() >= 1);
assert(volIter.getPosX() < volIter.getVolume().getSideLength() - 2);
assert(volIter.getPosY() < volIter.getVolume().getSideLength() - 2);
assert(volIter.getPosZ() < volIter.getVolume().getSideLength() - 2);
float sum = 0.0;
if(volIter.peekVoxel1nx1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px0py1nz() != 0) sum += 1.0f;
if(volIter.getVoxel() != 0) sum += 1.0f;
if(volIter.peekVoxel0px0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py1pz() != 0) sum += 1.0f;
sum /= 27.0f;
return sum;
}
}

78
PolyVoxCore/source/SurfaceExtractorsDecimated.cpp
View File

@ -129,22 +129,22 @@ namespace PolyVox
if((x==regSlice.getLowerCorner().getX()) && (y==regSlice.getLowerCorner().getY()))
{
volIter.setPosition(x,y,regSlice.getLowerCorner().getZ());
const uint8_t v000 = volIter.getMaxedVoxel(uLevel);
const uint8_t v000 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ());
const uint8_t v100 = volIter.getMaxedVoxel(uLevel);
const uint8_t v100 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v010 = volIter.getMaxedVoxel(uLevel);
const uint8_t v010 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v110 = volIter.getMaxedVoxel(uLevel);
const uint8_t v110 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v001 = volIter.getMaxedVoxel(uLevel);
const uint8_t v001 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v101 = volIter.getMaxedVoxel(uLevel);
const uint8_t v101 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v011 = volIter.getMaxedVoxel(uLevel);
const uint8_t v011 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
if (v000 == 0) iCubeIndex |= 1;
if (v100 == 0) iCubeIndex |= 2;
@ -158,14 +158,14 @@ namespace PolyVox
else if((x>regSlice.getLowerCorner().getX()) && y==regSlice.getLowerCorner().getY())
{
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ());
const uint8_t v100 = volIter.getMaxedVoxel(uLevel);
const uint8_t v100 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v110 = volIter.getMaxedVoxel(uLevel);
const uint8_t v110 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v101 = volIter.getMaxedVoxel(uLevel);
const uint8_t v101 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//x
uint8_t iPreviousCubeIndexX = bitmask[getDecimatedIndex(x- offset.getX()-uStepSize,y- offset.getY())];
@ -193,14 +193,14 @@ namespace PolyVox
else if((x==regSlice.getLowerCorner().getX()) && (y>regSlice.getLowerCorner().getY()))
{
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v010 = volIter.getMaxedVoxel(uLevel);
const uint8_t v010 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v110 = volIter.getMaxedVoxel(uLevel);
const uint8_t v110 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v011 = volIter.getMaxedVoxel(uLevel);
const uint8_t v011 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//y
uint8_t iPreviousCubeIndexY = bitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY()-uStepSize)];
@ -228,10 +228,10 @@ namespace PolyVox
else
{
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ());
const uint8_t v110 = volIter.getMaxedVoxel(uLevel);
const uint8_t v110 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//y
uint8_t iPreviousCubeIndexY = bitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY()-uStepSize)];
@ -298,13 +298,13 @@ namespace PolyVox
if((x==regSlice.getLowerCorner().getX()) && (y==regSlice.getLowerCorner().getY()))
{
volIter.setPosition(x,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v001 = volIter.getMaxedVoxel(uLevel);
const uint8_t v001 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v101 = volIter.getMaxedVoxel(uLevel);
const uint8_t v101 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v011 = volIter.getMaxedVoxel(uLevel);
const uint8_t v011 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//z
uint8_t iPreviousCubeIndexZ = previousBitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY())];
@ -318,9 +318,9 @@ namespace PolyVox
else if((x>regSlice.getLowerCorner().getX()) && y==regSlice.getLowerCorner().getY())
{
volIter.setPosition(x+uStepSize,y,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v101 = volIter.getMaxedVoxel(uLevel);
const uint8_t v101 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//z
uint8_t iPreviousCubeIndexZ = previousBitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY())];
@ -342,9 +342,9 @@ namespace PolyVox
else if((x==regSlice.getLowerCorner().getX()) && (y>regSlice.getLowerCorner().getY()))
{
volIter.setPosition(x,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v011 = volIter.getMaxedVoxel(uLevel);
const uint8_t v011 = volIter.getSubSampledVoxel(uLevel);
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//z
uint8_t iPreviousCubeIndexZ = previousBitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY())];
@ -366,7 +366,7 @@ namespace PolyVox
else
{
volIter.setPosition(x+uStepSize,y+uStepSize,regSlice.getLowerCorner().getZ()+uStepSize);
const uint8_t v111 = volIter.getMaxedVoxel(uLevel);
const uint8_t v111 = volIter.getSubSampledVoxel(uLevel);
//z
uint8_t iPreviousCubeIndexZ = previousBitmask[getDecimatedIndex(x- offset.getX(),y- offset.getY())];
@ -418,7 +418,7 @@ namespace PolyVox
const uint16_t z = regSlice.getLowerCorner().getZ();
volIter.setPosition(x,y,z);
const uint8_t v000 = volIter.getMaxedVoxel(uLevel);
const uint8_t v000 = volIter.getSubSampledVoxel(uLevel);
//Determine the index into the edge table which tells us which vertices are inside of the surface
uint8_t iCubeIndex = bitmask[getDecimatedIndex(x - offset.getX(),y - offset.getY())];
@ -435,7 +435,7 @@ namespace PolyVox
if(x != regSlice.getUpperCorner().getX())
{
volIter.setPosition(x + uStepSize,y,z);
const uint8_t v100 = volIter.getMaxedVoxel(uLevel);
const uint8_t v100 = volIter.getSubSampledVoxel(uLevel);
const Vector3DFloat v3dPosition(x - offset.getX() + 0.5f * uStepSize, y - offset.getY(), z - offset.getZ());
const Vector3DFloat v3dNormal(v000 > v100 ? 1.0f : -1.0f,0.0,0.0);
const uint8_t uMaterial = v000 | v100; //Because one of these is 0, the or operation takes the max.
@ -449,7 +449,7 @@ namespace PolyVox
if(y != regSlice.getUpperCorner().getY())
{
volIter.setPosition(x,y + uStepSize,z);
const uint8_t v010 = volIter.getMaxedVoxel(uLevel);
const uint8_t v010 = volIter.getSubSampledVoxel(uLevel);
const Vector3DFloat v3dPosition(x - offset.getX(), y - offset.getY() + 0.5f * uStepSize, z - offset.getZ());
const Vector3DFloat v3dNormal(0.0,v000 > v010 ? 1.0f : -1.0f,0.0);
const uint8_t uMaterial = v000 | v010; //Because one of these is 0, the or operation takes the max.
@ -463,7 +463,7 @@ namespace PolyVox
//if(z != regSlice.getUpperCorner.getZ())
{
volIter.setPosition(x,y,z + uStepSize);
const uint8_t v001 = volIter.getMaxedVoxel(uLevel);
const uint8_t v001 = volIter.getSubSampledVoxel(uLevel);
const Vector3DFloat v3dPosition(x - offset.getX(), y - offset.getY(), z - offset.getZ() + 0.5f * uStepSize);
const Vector3DFloat v3dNormal(0.0,0.0,v000 > v001 ? 1.0f : -1.0f);
const uint8_t uMaterial = v000 | v001; //Because one of these is 0, the or operation takes the max.
@ -606,21 +606,21 @@ namespace PolyVox
//while(volIter.moveForwardInRegionXYZ())
//{
volIter.setPosition(x,y,z);
const uint8_t v000 = volIter.getMaxedVoxel(1);
const uint8_t v000 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x+2,y,z);
const uint8_t v100 = volIter.getMaxedVoxel(1);
const uint8_t v100 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x,y+2,z);
const uint8_t v010 = volIter.getMaxedVoxel(1);
const uint8_t v010 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x+2,y+2,z);
const uint8_t v110 = volIter.getMaxedVoxel(1);
const uint8_t v110 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x,y,z+2);
const uint8_t v001 = volIter.getMaxedVoxel(1);
const uint8_t v001 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x+2,y,z+2);
const uint8_t v101 = volIter.getMaxedVoxel(1);
const uint8_t v101 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x,y+2,z+2);
const uint8_t v011 = volIter.getMaxedVoxel(1);
const uint8_t v011 = volIter.getSubSampledVoxel(1);
volIter.setPosition(x+2,y+2,z+2);
const uint8_t v111 = volIter.getMaxedVoxel(1);
const uint8_t v111 = volIter.getSubSampledVoxel(1);
//Determine the index into the edge table which tells us which vertices are inside of the surface
uint8_t iCubeIndex = 0;

51
PolyVoxCore/source/VoxelFilters.cpp Normal file
View File

@ -0,0 +1,51 @@
#include "VoxelFilters.h"
#include "BlockVolumeIterator.h"
namespace PolyVox
{
float computeSmoothedVoxel(BlockVolumeIterator<boost::uint8_t>& volIter)
{
assert(volIter.getPosX() >= 1);
assert(volIter.getPosY() >= 1);
assert(volIter.getPosZ() >= 1);
assert(volIter.getPosX() < volIter.getVolume().getSideLength() - 2);
assert(volIter.getPosY() < volIter.getVolume().getSideLength() - 2);
assert(volIter.getPosZ() < volIter.getVolume().getSideLength() - 2);
float sum = 0.0;
if(volIter.peekVoxel1nx1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1nx1py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px0py1nz() != 0) sum += 1.0f;
if(volIter.getVoxel() != 0) sum += 1.0f;
if(volIter.peekVoxel0px0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel0px1py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1ny1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px0py1pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py1nz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py0pz() != 0) sum += 1.0f;
if(volIter.peekVoxel1px1py1pz() != 0) sum += 1.0f;
sum /= 27.0f;
return sum;
}
}

8
TODO.txt
View File

@ -1,4 +1,4 @@
For Version 0.1
For Version 1.0
===============
Implement Memory Pool
Clean up normal code - make normal generation a seperate pass.
@ -16,15 +16,17 @@ Check licensing, #regions, etc.
Decimated version of marching cubes should use less memory.
Unit test - compare output to reference implementation
Sort awkward use of 'offset' in decimated marching cubes.
Use of LinearVolume instead of arrays.
Add API docs
Add manual
Finish OpenGL sample.
For Version 0.2
For Version 2.0
===============
Detect detatched regions.
Handle mesh generation for detatched regions.
Generate ambient lighting from volume?
Utility function for closing outside surfaces?
Consider how seperate surface should be generated for a single region.
Consider transparent materials like glass.
Consider transparent materials like glass.
Allow writing meshes into volumes?