1/** 2 * Mandelbulber v2, a 3D fractal generator _%}}i*<. ____ _______ 3 * Copyright (C) 2020 Mandelbulber Team _>]|=||i=i<, / __ \___ ___ ___ / ___/ / 4 * \><||i|=>>%) / /_/ / _ \/ -_) _ \/ /__/ /__ 5 * This file is part of Mandelbulber. )<=i=]=|=i<> \____/ .__/\__/_//_/\___/____/ 6 * The project is licensed under GPLv3, -<>>=|><|||` /_/ 7 * see also COPYING file in this folder. ~+{i%+++ 8 * 9 * benesi T5 10 * @reference 11 * http://www.fractalforums.com/new-theories-and-research/ 12 * do-m3d-formula-have-to-be-distance-estimation-formulas/ 13 14 * This file has been autogenerated by tools/populateUiInformation.php 15 * from the file "fractal_transf_benesi_t5b.cpp" in the folder formula/definition 16 * D O N O T E D I T T H I S F I L E ! 17 */ 18 19REAL4 TransfBenesiT5bIteration(REAL4 z, __constant sFractalCl *fractal, sExtendedAuxCl *aux) 20{ 21 Q_UNUSED(aux); 22 23 REAL tempXZ = z.x * SQRT_2_3_F - z.z * SQRT_1_3_F; 24 z = (REAL4){(tempXZ - z.y) * SQRT_1_2_F, (tempXZ + z.y) * SQRT_1_2_F, 25 z.x * SQRT_1_3_F + z.z * SQRT_2_3_F, z.w}; 26 27 // if (z.x > -1e-21f && z.x < 1e-21f) 28 // z.x = (z.x > 0) ? 1e-21f : -1e-21f; 29 // if (z.y > -1e-21f && z.y < 1e-21f) 30 // z.y = (z.y > 0) ? 1e-21f : -1e-21f; 31 // if (z.z > -1e-21f && z.z < 1e-21f) 32 // z.z = (z.z > 0) ? 1e-21f : -1e-21f; 33 REAL4 tempV2 = z; 34 tempV2.x = fabs(native_powr(native_powr(z.y, fractal->transformCommon.int8X) 35 + native_powr(z.z, fractal->transformCommon.int8X), 36 fractal->transformCommon.power025.x)); 37 tempV2.y = fabs(native_powr(native_powr(z.x, fractal->transformCommon.int8Y) 38 + native_powr(z.z, fractal->transformCommon.int8Y), 39 fractal->transformCommon.power025.y)); 40 tempV2.z = fabs(native_powr(native_powr(z.x, fractal->transformCommon.int8Z) 41 + native_powr(z.y, fractal->transformCommon.int8Z), 42 fractal->transformCommon.power025.z)); 43 z = (fabs(tempV2 - fractal->transformCommon.offsetC111)) * fractal->transformCommon.scale3Dd222; 44 45 REAL avgScale = length(z) / length(tempV2); 46 if (fractal->analyticDE.enabled) 47 { 48 aux->DE = aux->DE * avgScale * fractal->analyticDE.scale1 + fractal->analyticDE.offset1; 49 } 50 51 if (fractal->transformCommon.rotationEnabled) 52 z = Matrix33MulFloat4(fractal->transformCommon.rotationMatrix, z); 53 54 tempXZ = (z.y + z.x) * SQRT_1_2_F; 55 z = (REAL4){z.z * SQRT_1_3_F + tempXZ * SQRT_2_3_F, (z.y - z.x) * SQRT_1_2_F, 56 z.z * SQRT_2_3_F - tempXZ * SQRT_1_3_F, z.w}; 57 return z; 58}