65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
/*******************************************************************************
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Copyright (c) 2005-2009 David Williams
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*******************************************************************************/
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#ifndef __PolyVox_GradientEstimators_H__
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#define __PolyVox_GradientEstimators_H__
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#include "PolyVox/Vector.h"
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#include "PolyVox/VoxelFilters.h"
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#include <vector>
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namespace PolyVox
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{
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enum NormalGenerationMethod
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{
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SIMPLE, ///<Fastest
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CENTRAL_DIFFERENCE,
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SOBEL,
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CENTRAL_DIFFERENCE_SMOOTHED,
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SOBEL_SMOOTHED ///<Smoothest
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};
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template<typename VolumeType>
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Vector3DFloat computeCentralDifferenceGradient(const typename VolumeType::Sampler& volIter);
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template<typename VolumeType>
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Vector3DFloat computeSmoothCentralDifferenceGradient(typename VolumeType::Sampler& volIter);
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template<typename VolumeType>
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Vector3DFloat computeDecimatedCentralDifferenceGradient(typename VolumeType::Sampler& volIter);
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template<typename VolumeType>
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Vector3DFloat computeSobelGradient(const typename VolumeType::Sampler& volIter);
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template<typename VolumeType>
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Vector3DFloat computeSmoothSobelGradient(typename VolumeType::Sampler& volIter);
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//POLYVOX_API void computeNormalsForVertices(VolumeType<uint8_t>* volumeData, Mesh<PositionMaterialNormal>& mesh, NormalGenerationMethod normalGenerationMethod);
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//POLYVOX_API Vector3DFloat computeNormal(VolumeType<uint8_t>* volumeData, const Vector3DFloat& v3dPos, NormalGenerationMethod normalGenerationMethod);
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}
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#include "PolyVox/GradientEstimators.inl"
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#endif //__PolyVox_GradientEstimators_H__
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