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29 lines
752 B
C++
29 lines
752 B
C++
//
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// octal.cpp
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// interface
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//
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// Created by Philip on 2/4/13.
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// Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
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//
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// Various subroutines for converting between X,Y,Z coords and octree coordinates.
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//
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#include "Util.h"
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#include "octal.h"
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#include <cstring>
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const int X = 0;
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const int Y = 1;
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const int Z = 2;
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domainNode rootNode;
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// Given a position vector between zero and one (but less than one), and a voxel scale 1/2^scale,
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// returns the smallest voxel at that scale which encloses the given point.
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void getVoxel(float * pos, int scale, float * vpos) {
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float vscale = powf(2, scale);
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vpos[X] = floor(pos[X]*vscale)/vscale;
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vpos[Y] = floor(pos[Y]*vscale)/vscale;
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vpos[Z] = floor(pos[Z]*vscale)/vscale;
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}
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