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Applying ker's patch unmodified.

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This commit is contained in:
David Williams
2011-03-10 20:31:11 +00:00
parent d7cea1b72e
commit 8e6b1a3b7e
14 changed files with 300 additions and 378 deletions
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82
examples/Basic/main.cpp
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@ -348,14 +348,14 @@ void createPerlinVolumeSlow(Volume<MaterialDensityPair44>& volData)
{
Perlin perlin(2,8,1,234);
for(int z = 1; z < volData.getDepth()-1; z++)
for(int z = 1; z < 256-1; z++)
{
std::cout << z << std::endl;
for(int y = 1; y < volData.getHeight()-1; y++)
for(int y = 1; y < 256-1; y++)
{
for(int x = 1; x < volData.getWidth()-1; x++)
for(int x = 1; x < 256-1; x++)
{
float perlinVal = perlin.Get3D(x /static_cast<float>(volData.getWidth()-1), (y) / static_cast<float>(volData.getHeight()-1), z / static_cast<float>(volData.getDepth()-1));
float perlinVal = perlin.Get3D(x /static_cast<float>(256-1), (y) / static_cast<float>(256-1), z / static_cast<float>(256-1));
perlinVal += 1.0f;
perlinVal *= 0.5f;
@ -435,18 +435,18 @@ void createPerlinTerrain(Volume<MaterialDensityPair44>& volData)
{
Perlin perlin(2,2,1,234);
for(int x = 1; x < volData.getWidth()-1; x++)
for(int x = 1; x < 255-1; x++)
{
if(x%(volData.getWidth()/100) == 0) {
if(x%(255/100) == 0) {
std::cout << "." << std::flush;
}
for(int y = 1; y < volData.getHeight()-1; y++)
for(int y = 1; y < 255-1; y++)
{
float perlinVal = perlin.Get(x / static_cast<float>(volData.getHeight()-1), y / static_cast<float>(volData.getDepth()-1));
float perlinVal = perlin.Get(x / static_cast<float>(255-1), y / static_cast<float>(255-1));
perlinVal += 1.0f;
perlinVal *= 0.5f;
perlinVal *= volData.getShortestSideLength();
for(int z = 1; z < volData.getDepth()-1; z++)
perlinVal *= 255;
for(int z = 1; z < 255-1; z++)
{
MaterialDensityPair44 voxel;
if(z < perlinVal)
@ -506,6 +506,53 @@ void createSphereInVolume(Volume<MaterialDensityPair44>& volData, Vector3DFloat
}
}
void load(const Volume<MaterialDensityPair44>& volume, PolyVox::Region reg)
{
Perlin perlin(2,2,1,234);
for(int x = reg.getLowerCorner().getX(); x <= reg.getUpperCorner().getX(); x++)
{
for(int y = reg.getLowerCorner().getY(); y <= reg.getUpperCorner().getY(); y++)
{
float perlinVal = perlin.Get(x / static_cast<float>(255-1), y / static_cast<float>(255-1));
perlinVal += 1.0f;
perlinVal *= 0.5f;
perlinVal *= 255;
for(int z = reg.getLowerCorner().getZ(); z <= reg.getUpperCorner().getZ(); z++)
{
MaterialDensityPair44 voxel;
if(z < perlinVal)
{
const int xpos = 50;
const int zpos = 100;
if((x-xpos)*(x-xpos) + (z-zpos)*(z-zpos) < 200) {
// tunnel
voxel.setMaterial(0);
voxel.setDensity(MaterialDensityPair44::getMinDensity());
} else {
// solid
voxel.setMaterial(245);
voxel.setDensity(MaterialDensityPair44::getMaxDensity());
}
}
else
{
voxel.setMaterial(0);
voxel.setDensity(MaterialDensityPair44::getMinDensity());
}
volume.load_setVoxelAt(x, y, z, voxel);
}
}
}
}
void unload(const Volume<MaterialDensityPair44>& vol, PolyVox::Region reg)
{
std::cout << "warning unloading region: " << reg.getLowerCorner() << " -> " << reg.getUpperCorner() << std::endl;
}
#include <boost/bind.hpp>
int main(int argc, char *argv[])
{
//Create and show the Qt OpenGL window
@ -514,13 +561,15 @@ int main(int argc, char *argv[])
openGLWidget.show();
//Create an empty volume and then place a sphere in it
Volume<MaterialDensityPair44> volData(1024*128,16,16,16);
volData.useCompatibilityMode();
Volume<MaterialDensityPair44> volData(128);
volData.m_LoadCallback = std::bind(&load, std::placeholders::_1, std::placeholders::_2);
volData.m_UnloadCallback = boost::bind(&unload, _1, _2);
volData.setBlockCacheSize(4096);
//createSphereInVolume(volData, 30);
createPerlinTerrain(volData);
//createPerlinTerrain(volData);
//createPerlinVolumeSlow(volData);
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
volData.setBlockCacheSize(64);
//volData.setBlockCacheSize(64);
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
@ -540,8 +589,11 @@ int main(int argc, char *argv[])
//Extract the surface
SurfaceMesh<PositionMaterialNormal> mesh;
//CubicSurfaceExtractorWithNormals<MaterialDensityPair44> surfaceExtractor(&volData, volData.getEnclosingRegion(), &mesh);
SurfaceExtractor<MaterialDensityPair44> surfaceExtractor(&volData, volData.getEnclosingRegion(), &mesh);
PolyVox::Region reg(Vector3DInt32(-255,0,0), Vector3DInt32(255,1024,255));
SurfaceExtractor<MaterialDensityPair44> surfaceExtractor(&volData, reg, &mesh);
//CubicSurfaceExtractorWithNormals<MaterialDensityPair44> surfaceExtractor(&volData, reg, &mesh);
surfaceExtractor.execute();
std::cout << "#vertices: " << mesh.getNoOfVertices() << std::endl;
//Pass the surface to the OpenGL window
openGLWidget.setSurfaceMeshToRender(mesh);