46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
#include "Shapes.h"
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using namespace PolyVox;
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void createSphereInVolume(Volume<uint8>& volData, float fRadius, uint8 uValue)
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{
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//This vector hold the position of the center of the volume
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Vector3DFloat v3dVolCenter(volData.getSideLength() / 2, volData.getSideLength() / 2, volData.getSideLength() / 2);
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//This three-level for loop iterates over every voxel in the volume
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for (int z = 0; z < volData.getSideLength(); z++)
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{
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for (int y = 0; y < volData.getSideLength(); y++)
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{
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for (int x = 0; x < volData.getSideLength(); x++)
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{
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//Store our current position as a vector...
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Vector3DFloat v3dCurrentPos(x,y,z);
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//And compute how far the current position is from the center of the volume
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float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
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//If the current voxel is less than 'radius' units from the center
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//then we make it solid, otherwise we make it empty space.
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if(fDistToCenter <= fRadius)
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{
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volData.setVoxelAt(x,y,z, uValue);
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}
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}
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}
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}
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}
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void createCubeInVolume(Volume<uint8>& volData, Vector3DUint16 lowerCorner, Vector3DUint16 upperCorner, uint8 uValue)
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{
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//This three-level for loop iterates over every voxel between the specified corners
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for (int z = lowerCorner.getZ(); z <= upperCorner.getZ(); z++)
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{
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for (int y = lowerCorner.getY(); y <= upperCorner.getY(); y++)
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{
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for (int x = lowerCorner.getX() ; x <= upperCorner.getX(); x++)
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{
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volData.setVoxelAt(x,y,z, uValue);
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}
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}
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}
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} |