110 lines
No EOL
6.6 KiB
C++
110 lines
No EOL
6.6 KiB
C++
// Copyright 2020 Phyronnaz
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#pragma once
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#include "FastNoise/VoxelFastNoise_CubicNoise.h"
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#include "FastNoise/VoxelFastNoiseBase.inl"
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// THIS CODE IS A MODIFIED VERSION OF FAST NOISE: SEE LICENSE BELOW
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//
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// MIT License
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//
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// Copyright(c) 2017 Jordan Peck
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files(the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions :
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// The developer's email is jorzixdan.me2@gzixmail.com (for great email, take
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// off every 'zix'.)
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//
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// VERSION: 0.4.1
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// ReSharper disable CppUE4CodingStandardNamingViolationWarning
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template<typename T>
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FN_FORCEINLINE_SINGLE v_flt TVoxelFastNoise_CubicNoise<T>::SingleCubic_2D(uint8 offset, v_flt x, v_flt y) const
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{
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const int32 x1 = FNoiseMath::FastFloor(x);
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const int32 y1 = FNoiseMath::FastFloor(y);
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const int32 x0 = x1 - 1;
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const int32 y0 = y1 - 1;
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const int32 x2 = x1 + 1;
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const int32 y2 = y1 + 1;
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const int32 x3 = x1 + 2;
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const int32 y3 = y1 + 2;
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const v_flt xs = x - v_flt(x1);
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const v_flt ys = y - v_flt(y1);
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return FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(This().ValCoord2DFast(offset, x0, y0), This().ValCoord2DFast(offset, x1, y0), This().ValCoord2DFast(offset, x2, y0), This().ValCoord2DFast(offset, x3, y0), xs),
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FNoiseMath::CubicLerp(This().ValCoord2DFast(offset, x0, y1), This().ValCoord2DFast(offset, x1, y1), This().ValCoord2DFast(offset, x2, y1), This().ValCoord2DFast(offset, x3, y1), xs),
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FNoiseMath::CubicLerp(This().ValCoord2DFast(offset, x0, y2), This().ValCoord2DFast(offset, x1, y2), This().ValCoord2DFast(offset, x2, y2), This().ValCoord2DFast(offset, x3, y2), xs),
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FNoiseMath::CubicLerp(This().ValCoord2DFast(offset, x0, y3), This().ValCoord2DFast(offset, x1, y3), This().ValCoord2DFast(offset, x2, y3), This().ValCoord2DFast(offset, x3, y3), xs),
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ys) * CUBIC_2D_BOUNDING;
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}
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template<typename T>
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FN_FORCEINLINE_SINGLE v_flt TVoxelFastNoise_CubicNoise<T>::SingleCubic_3D(uint8 offset, v_flt x, v_flt y, v_flt z) const
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{
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const int32 x1 = FNoiseMath::FastFloor(x);
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const int32 y1 = FNoiseMath::FastFloor(y);
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const int32 z1 = FNoiseMath::FastFloor(z);
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const int32 x0 = x1 - 1;
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const int32 y0 = y1 - 1;
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const int32 z0 = z1 - 1;
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const int32 x2 = x1 + 1;
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const int32 y2 = y1 + 1;
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const int32 z2 = z1 + 1;
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const int32 x3 = x1 + 2;
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const int32 y3 = y1 + 2;
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const int32 z3 = z1 + 2;
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const v_flt xs = x - v_flt(x1);
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const v_flt ys = y - v_flt(y1);
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const v_flt zs = z - v_flt(z1);
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return FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y0, z0), This().ValCoord3DFast(offset, x1, y0, z0), This().ValCoord3DFast(offset, x2, y0, z0), This().ValCoord3DFast(offset, x3, y0, z0), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y1, z0), This().ValCoord3DFast(offset, x1, y1, z0), This().ValCoord3DFast(offset, x2, y1, z0), This().ValCoord3DFast(offset, x3, y1, z0), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y2, z0), This().ValCoord3DFast(offset, x1, y2, z0), This().ValCoord3DFast(offset, x2, y2, z0), This().ValCoord3DFast(offset, x3, y2, z0), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y3, z0), This().ValCoord3DFast(offset, x1, y3, z0), This().ValCoord3DFast(offset, x2, y3, z0), This().ValCoord3DFast(offset, x3, y3, z0), xs),
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ys),
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FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y0, z1), This().ValCoord3DFast(offset, x1, y0, z1), This().ValCoord3DFast(offset, x2, y0, z1), This().ValCoord3DFast(offset, x3, y0, z1), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y1, z1), This().ValCoord3DFast(offset, x1, y1, z1), This().ValCoord3DFast(offset, x2, y1, z1), This().ValCoord3DFast(offset, x3, y1, z1), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y2, z1), This().ValCoord3DFast(offset, x1, y2, z1), This().ValCoord3DFast(offset, x2, y2, z1), This().ValCoord3DFast(offset, x3, y2, z1), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y3, z1), This().ValCoord3DFast(offset, x1, y3, z1), This().ValCoord3DFast(offset, x2, y3, z1), This().ValCoord3DFast(offset, x3, y3, z1), xs),
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ys),
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FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y0, z2), This().ValCoord3DFast(offset, x1, y0, z2), This().ValCoord3DFast(offset, x2, y0, z2), This().ValCoord3DFast(offset, x3, y0, z2), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y1, z2), This().ValCoord3DFast(offset, x1, y1, z2), This().ValCoord3DFast(offset, x2, y1, z2), This().ValCoord3DFast(offset, x3, y1, z2), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y2, z2), This().ValCoord3DFast(offset, x1, y2, z2), This().ValCoord3DFast(offset, x2, y2, z2), This().ValCoord3DFast(offset, x3, y2, z2), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y3, z2), This().ValCoord3DFast(offset, x1, y3, z2), This().ValCoord3DFast(offset, x2, y3, z2), This().ValCoord3DFast(offset, x3, y3, z2), xs),
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ys),
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FNoiseMath::CubicLerp(
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y0, z3), This().ValCoord3DFast(offset, x1, y0, z3), This().ValCoord3DFast(offset, x2, y0, z3), This().ValCoord3DFast(offset, x3, y0, z3), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y1, z3), This().ValCoord3DFast(offset, x1, y1, z3), This().ValCoord3DFast(offset, x2, y1, z3), This().ValCoord3DFast(offset, x3, y1, z3), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y2, z3), This().ValCoord3DFast(offset, x1, y2, z3), This().ValCoord3DFast(offset, x2, y2, z3), This().ValCoord3DFast(offset, x3, y2, z3), xs),
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FNoiseMath::CubicLerp(This().ValCoord3DFast(offset, x0, y3, z3), This().ValCoord3DFast(offset, x1, y3, z3), This().ValCoord3DFast(offset, x2, y3, z3), This().ValCoord3DFast(offset, x3, y3, z3), xs),
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ys),
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zs) * CUBIC_3D_BOUNDING;
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} |