AnotherFoxGuy/polyvox
1
0
Fork 0
Code Issues Pull Requests Activity

Moved some stuff from VolumeChangeTracker to SurfaceExtractors.

Browse Source
This commit is contained in:
David Williams
2008-05-25 21:06:58 +00:00
parent 29d1cd8ad1
commit 22fd38b255
6 changed files with 46 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
source/SurfaceExtractors.cpp
View File

@ -5,12 +5,40 @@
#include "IndexedSurfacePatch.h"
#include "MarchingCubesTables.h"
#include "Region.h"
#include "RegionGeometry.h"
#include "VolumeChangeTracker.h"
#include "VolumeIterator.h"
using namespace boost;
namespace PolyVox
{
std::list<RegionGeometry> getChangedRegionGeometry(VolumeChangeTracker& volume)
{
std::list<Region> listChangedRegions;
volume.getChangedRegions(listChangedRegions);
std::list<RegionGeometry> listChangedRegionGeometry;
for(std::list<Region>::const_iterator iterChangedRegions = listChangedRegions.begin(); iterChangedRegions != listChangedRegions.end(); ++iterChangedRegions)
{
//Generate the surface
RegionGeometry regionGeometry;
regionGeometry.m_patchSingleMaterial = new IndexedSurfacePatch(false);
regionGeometry.m_patchMultiMaterial = new IndexedSurfacePatch(true);
regionGeometry.m_v3dRegionPosition = iterChangedRegions->getLowerCorner();
generateRoughMeshDataForRegion(volume.getVolumeData(), *iterChangedRegions, regionGeometry.m_patchSingleMaterial, regionGeometry.m_patchMultiMaterial);
regionGeometry.m_bContainsSingleMaterialPatch = regionGeometry.m_patchSingleMaterial->getVertices().size() > 0;
regionGeometry.m_bContainsMultiMaterialPatch = regionGeometry.m_patchMultiMaterial->getVertices().size() > 0;
regionGeometry.m_bIsEmpty = ((regionGeometry.m_patchSingleMaterial->getVertices().size() == 0) && (regionGeometry.m_patchMultiMaterial->getIndices().size() == 0));
listChangedRegionGeometry.push_back(regionGeometry);
}
return listChangedRegionGeometry;
}
void generateRoughMeshDataForRegion(BlockVolume<uint8_t>* volumeData, Region region, IndexedSurfacePatch* singleMaterialPatch, IndexedSurfacePatch* multiMaterialPatch)
{
//When generating the mesh for a region we actually look one voxel outside it in the

55
source/VolumeChangeTracker.cpp
View File

@ -56,33 +56,9 @@ namespace PolyVox
volRegionUpToDate = new LinearVolume<bool>(PolyVox::logBase2(POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS));
}
std::list<RegionGeometry> VolumeChangeTracker::getChangedRegionGeometry(void)
{
std::list<Region> listChangedRegions;
getChangedRegions(listChangedRegions);
std::list<RegionGeometry> listChangedRegionGeometry;
for(std::list<Region>::const_iterator iterChangedRegions = listChangedRegions.begin(); iterChangedRegions != listChangedRegions.end(); ++iterChangedRegions)
{
//Generate the surface
RegionGeometry regionGeometry;
regionGeometry.m_patchSingleMaterial = new IndexedSurfacePatch(false);
regionGeometry.m_patchMultiMaterial = new IndexedSurfacePatch(true);
regionGeometry.m_v3dRegionPosition = iterChangedRegions->getLowerCorner();
generateRoughMeshDataForRegion(volumeData, *iterChangedRegions, regionGeometry.m_patchSingleMaterial, regionGeometry.m_patchMultiMaterial);
regionGeometry.m_bContainsSingleMaterialPatch = regionGeometry.m_patchSingleMaterial->getVertices().size() > 0;
regionGeometry.m_bContainsMultiMaterialPatch = regionGeometry.m_patchMultiMaterial->getVertices().size() > 0;
regionGeometry.m_bIsEmpty = ((regionGeometry.m_patchSingleMaterial->getVertices().size() == 0) && (regionGeometry.m_patchMultiMaterial->getIndices().size() == 0));
listChangedRegionGeometry.push_back(regionGeometry);
}
return listChangedRegionGeometry;
}
void VolumeChangeTracker::getChangedRegions(std::list<Region>& listToFill)
void VolumeChangeTracker::getChangedRegions(std::list<Region>& listToFill) const
{
//Clear the list
listToFill.clear();
@ -127,35 +103,12 @@ namespace PolyVox
}
}
/*void VolumeChangeTracker::markRegionChanged(uint16_t firstX, uint16_t firstY, uint16_t firstZ, uint16_t lastX, uint16_t lastY, uint16_t lastZ)
{
const uint16_t firstRegionX = firstX >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t firstRegionY = firstY >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t firstRegionZ = firstZ >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionX = lastX >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionY = lastY >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionZ = lastZ >> POLYVOX_REGION_SIDE_LENGTH_POWER;
for(uint16_t zCt = firstRegionZ; zCt <= lastRegionZ; zCt++)
{
for(uint16_t yCt = firstRegionY; yCt <= lastRegionY; yCt++)
{
for(uint16_t xCt = firstRegionX; xCt <= lastRegionX; xCt++)
{
//surfaceUpToDate[xCt][yCt][zCt] = false;
volRegionUpToDate->setVoxelAt(xCt,yCt,zCt,false);
}
}
}
}*/
uint16_t VolumeChangeTracker::getSideLength(void)
{
return volumeData->getSideLength();
}
Region VolumeChangeTracker::getEnclosingRegion(void)
Region VolumeChangeTracker::getEnclosingRegion(void) const
{
return volumeData->getEnclosingRegion();
}
@ -176,7 +129,7 @@ namespace PolyVox
return volIter.getVoxel();
}
const BlockVolume<boost::uint8_t>* VolumeChangeTracker::getVolumeData(void) const
BlockVolume<boost::uint8_t>* VolumeChangeTracker::getVolumeData(void) const
{
return volumeData;
}