/******************************************************************************* Copyright (c) 2005-2009 David Williams This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. *******************************************************************************/ #include "OpenGLWidget.h" #include "MaterialDensityPair.h" #include "SurfaceExtractor.h" #include "SurfaceMesh.h" #include "Volume.h" #include //Some namespaces we need using namespace std; using namespace PolyVox; using namespace std; void createSphereInVolume(Volume& volData, float fRadius, uint8_t uValue) { //This vector hold the position of the center of the volume Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2); //This three-level for loop iterates over every voxel in the volume for (int z = 0; z < volData.getWidth(); z++) { for (int y = 0; y < volData.getHeight(); y++) { for (int x = 0; x < volData.getDepth(); x++) { //Store our current position as a vector... Vector3DFloat v3dCurrentPos(x,y,z); //And compute how far the current position is from the center of the volume float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length(); //Default to values representing empty space. uint8_t uMaterial = 0; uint8_t uDensity = MaterialDensityPair44::getMinDensity(); //If the current voxel is less than 'radius' units from the center then we make it solid. if(fDistToCenter <= fRadius) { uMaterial = 1; uDensity = MaterialDensityPair44::getMaxDensity(); } //Wrte the voxel value into the volume MaterialDensityPair44 voxel(uMaterial, uDensity); volData.setVoxelAt(x, y, z, voxel); } } } } const uint16_t g_uVolumeSideLength = 64; int main(int argc, char *argv[]) { QApplication app(argc, argv); OpenGLWidget openGLWidget(0); openGLWidget.show(); Volume volData(g_uVolumeSideLength, g_uVolumeSideLength, g_uVolumeSideLength); createSphereInVolume(volData, 30, 1); SurfaceExtractor surfaceExtractor(volData); shared_ptr surface = surfaceExtractor.extractSurfaceForRegion(volData.getEnclosingRegion()); //OpenGLSurfaceMesh mesh = BuildOpenGLSurfaceMesh(*surface); //openGLWidget.mesh = BuildOpenGLSurfaceMesh(*(surface.get())); //openGLWidget.surfaceMesh = *surface; openGLWidget.setSurfaceMeshToRender(*surface); return app.exec(); }