d2a6a32213
* Some fixes * fix fractalnoisefx Signed-off-by: Jeremy Bullock <jcbullock@gmail.com> * gui modifications Signed-off-by: Jeremy Bullock <jcbullock@gmail.com> * Finish to style update patch * OpenToonz #3510 Co-authored-by: shun-iwasawa shun-iwasawa@users.noreply.github.com Co-authored-by: shun-iwasawa <shun.iwasawa@ghibli.jp>
471 lines
17 KiB
C++
471 lines
17 KiB
C++
#include "iwa_fractalnoisefx.h"
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#include "iwa_noise1234.h"
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#include "tparamuiconcept.h"
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namespace {
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// convert sRGB color space to power space
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template <typename T = double>
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inline T to_linear_color_space(T nonlinear_color, T exposure, T gamma) {
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// return -std::log(T(1) - std::pow(nonlinear_color, gamma)) / exposure;
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return std::pow(nonlinear_color, gamma) / exposure;
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}
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// convert power space to sRGB color space
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template <typename T = double>
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inline T to_nonlinear_color_space(T linear_color, T exposure, T gamma) {
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// return std::pow(T(1) - std::exp(-exposure * linear_color), T(1) / gamma);
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return std::pow(exposure * linear_color, T(1) / gamma);
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}
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inline double hardlight(const double *dn, const double *up) {
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if ((*up) < 0.5)
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return (*up) * (*dn) * 2.0;
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else
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return 1.0 - 2.0 * (1.0 - (*up)) * (1.0 - (*dn));
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}
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template <class T = double>
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inline const T &clamp(const T &v, const T &lo, const T &hi) {
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assert(!(hi < lo));
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return (v < lo) ? lo : (hi < v) ? hi : v;
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}
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const double turbulentGamma = 2.2;
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// magic number to offset evolution between generations
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const double evolutionOffsetStep = 19.82;
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} // namespace
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//------------------------------------------------------------------
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Iwa_FractalNoiseFx::Iwa_FractalNoiseFx()
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: m_fractalType(new TIntEnumParam(Basic, "Basic"))
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, m_noiseType(new TIntEnumParam(Block, "Block"))
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, m_invert(false)
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, m_rotation(0.0)
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, m_uniformScaling(true)
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, m_scale(100.0)
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, m_scaleW(100.0)
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, m_scaleH(100.0)
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, m_offsetTurbulence(TPointD(0.0, 0.0))
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, m_perspectiveOffset(false)
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, m_complexity(6.0)
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, m_subInfluence(70.0)
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, m_subScaling(56.0)
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, m_subRotation(0.0)
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, m_subOffset(TPointD(0.0, 0.0))
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///, m_centerSubscale(false)
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, m_evolution(0.0)
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, m_cycleEvolution(false)
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, m_cycleEvolutionRange(1.0)
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///, m_randomSeed(0)
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, m_dynamicIntensity(1.0)
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, m_alphaRendering(false) {
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m_fractalType->addItem(TurbulentSmooth, "Turbulent Smooth");
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m_fractalType->addItem(TurbulentBasic, "Turbulent Basic");
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m_fractalType->addItem(TurbulentSharp, "Turbulent Sharp");
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m_fractalType->addItem(Dynamic, "Dynamic");
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m_fractalType->addItem(DynamicTwist, "Dynamic Twist");
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m_fractalType->addItem(Max, "Max");
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m_fractalType->addItem(Rocky, "Rocky");
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m_noiseType->addItem(Smooth, "Smooth");
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m_noiseType->setValue(Smooth);
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m_rotation->setMeasureName("angle");
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m_rotation->setValueRange(-360.0, 360.0);
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m_scale->setMeasureName("fxLength");
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m_scale->setValueRange(20.0, 600.0);
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m_scaleW->setMeasureName("fxLength");
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m_scaleW->setValueRange(20.0, 600.0);
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m_scaleH->setMeasureName("fxLength");
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m_scaleH->setValueRange(20.0, 600.0);
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m_offsetTurbulence->getX()->setMeasureName("fxLength");
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m_offsetTurbulence->getY()->setMeasureName("fxLength");
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m_complexity->setValueRange(1.0, 10.0);
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m_subInfluence->setValueRange(25.0, 100.0);
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m_subScaling->setValueRange(25.0, 100.0);
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m_subRotation->setMeasureName("angle");
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m_subRotation->setValueRange(-360.0, 360.0);
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m_subOffset->getX()->setMeasureName("fxLength");
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m_subOffset->getY()->setMeasureName("fxLength");
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m_evolution->setValueRange(-100.0, 100.0);
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m_cycleEvolutionRange->setValueRange(0.1, 30.0);
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m_dynamicIntensity->setValueRange(-10.0, 10.0);
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bindParam(this, "fractalType", m_fractalType);
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bindParam(this, "noiseType", m_noiseType);
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bindParam(this, "invert", m_invert);
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bindParam(this, "rotation", m_rotation);
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bindParam(this, "uniformScaling", m_uniformScaling);
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bindParam(this, "scale", m_scale);
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bindParam(this, "scaleW", m_scaleW);
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bindParam(this, "scaleH", m_scaleH);
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bindParam(this, "offsetTurbulence", m_offsetTurbulence);
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bindParam(this, "perspectiveOffset", m_perspectiveOffset);
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bindParam(this, "complexity", m_complexity);
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bindParam(this, "subInfluence", m_subInfluence);
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bindParam(this, "subScaling", m_subScaling);
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bindParam(this, "subRotation", m_subRotation);
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bindParam(this, "subOffset", m_subOffset);
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/// bindParam(this, "centerSubscale", m_centerSubscale);
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bindParam(this, "evolution", m_evolution);
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bindParam(this, "cycleEvolution", m_cycleEvolution);
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bindParam(this, "cycleEvolutionRange", m_cycleEvolutionRange);
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/// bindParam(this, "randomSeed", m_randomSeed);
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bindParam(this, "dynamicIntensity", m_dynamicIntensity);
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bindParam(this, "alphaRendering", m_alphaRendering);
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}
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//------------------------------------------------------------------
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bool Iwa_FractalNoiseFx::doGetBBox(double frame, TRectD &bBox,
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const TRenderSettings &ri) {
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bBox = TConsts::infiniteRectD;
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return true;
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}
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//------------------------------------------------------------------
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void Iwa_FractalNoiseFx::doCompute(TTile &tile, double frame,
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const TRenderSettings &ri) {
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// obtain current parameters
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FNParam param;
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obtainParams(param, frame, ri.m_affine);
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Noise1234 pn;
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TDimension outDim = tile.getRaster()->getSize();
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// allocate buffer for accumulating the noise patterns
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TRasterGR8P out_buf_ras = TRasterGR8P(outDim.lx * sizeof(double), outDim.ly);
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out_buf_ras->clear();
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out_buf_ras->lock();
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double *out_buf = (double *)out_buf_ras->getRawData();
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// allocate buffer for storing the noise pattern of each generation
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TRasterGR8P work_buf_ras = TRasterGR8P(outDim.lx * sizeof(double), outDim.ly);
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work_buf_ras->lock();
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double *work_buf = (double *)work_buf_ras->getRawData();
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// affine transformations
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TAffine globalAff = TTranslation(-tile.m_pos) * ri.m_affine;
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TAffine parentOffsetAff = TTranslation(param.offsetTurbulence);
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TAffine parentAff =
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TScale(param.scale.lx, param.scale.ly) * TRotation(-param.rotation);
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TAffine subAff = TTranslation(param.subOffset) * TScale(param.subScaling) *
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TRotation(-param.subRotation);
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TAffine genAff;
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// for cyclic evolution, rotate the sample position in ZW space instead of
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// using the periodic noise in Z space so that it can cycle in arbitral
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// period.
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double evolution_z = param.evolution;
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TPointD evolution_zw;
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if (param.cycleEvolution) {
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double theta = 2.0 * M_PI * param.evolution / param.cycleEvolutionRange;
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double d = param.cycleEvolutionRange / (2.0 * M_PI);
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evolution_zw.x = d * cos(theta);
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evolution_zw.y = d * sin(theta);
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}
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int genCount = (int)std::ceil(param.complexity);
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// accumulate base noise pattern for each generation
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for (int gen = 0; gen < genCount; gen++) {
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// affine transformation for the current generation
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TAffine currentAff =
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(globalAff * parentOffsetAff * parentAff * genAff).inv();
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// scale of the current pattern ( used for the Dynamic / Dynamic Twist
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// offset )
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double scale = sqrt(std::abs(currentAff.det()));
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// for each pixel
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double *buf_p = work_buf;
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for (int y = 0; y < outDim.ly; y++) {
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for (int x = 0; x < outDim.lx; x++, buf_p++) {
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// obtain sampling position
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// For Dynamic and Dynamic Twist patterns, the position offsets using
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// gradient / rotation of the parent pattern
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TPointD samplePos =
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getSamplePos(x, y, outDim, out_buf, gen, scale, param);
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// multiply affine transformation
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samplePos = currentAff * samplePos;
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// adjust postion for the block pattern
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if (param.noiseType == Block)
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samplePos = TPointD(std::floor(samplePos.x) + 0.5,
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std::floor(samplePos.y) + 0.5);
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// calculate the base noise
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if (param.cycleEvolution)
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*buf_p = (pn.noise(samplePos.x, samplePos.y, evolution_zw.x,
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evolution_zw.y) +
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1.0) *
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0.5;
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else
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*buf_p =
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(pn.noise(samplePos.x, samplePos.y, evolution_z) + 1.0) * 0.5;
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// convert the noise
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convert(buf_p, param);
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}
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}
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// just copy the values for the first generation
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if (gen == 0) {
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memcpy(out_buf, work_buf, outDim.lx * outDim.ly * sizeof(double));
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} else {
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// intensity of the last generation will take the fraction part of
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// complexity
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double genIntensity = std::min(1.0, param.complexity - (double)gen);
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// influence of the current generation
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double influence =
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genIntensity * std::pow(param.subInfluence, (double)gen);
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// composite the base noise pattern
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buf_p = work_buf;
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double *out_p = out_buf;
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for (int i = 0; i < outDim.lx * outDim.ly; i++, buf_p++, out_p++)
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composite(out_p, buf_p, influence, param);
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}
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// update affine transformations (for the next generation loop)
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genAff *= subAff;
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// When the "Perspective Offset" option is ON, reduce the offset amount
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// according to the sub scale
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if (param.perspectiveOffset)
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parentOffsetAff = TScale(param.subScaling) *
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TRotation(-param.subRotation) * parentOffsetAff *
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TRotation(param.subRotation) *
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TScale(1 / param.subScaling);
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if (param.cycleEvolution)
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evolution_zw.x += evolutionOffsetStep;
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else
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evolution_z += evolutionOffsetStep;
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}
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work_buf_ras->unlock();
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// finalize pattern (coverting the color space)
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if (param.fractalType == TurbulentSmooth ||
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param.fractalType == TurbulentBasic ||
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param.fractalType == TurbulentSharp) {
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double *out_p = out_buf;
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for (int i = 0; i < outDim.lx * outDim.ly; i++, out_p++)
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finalize(out_p, param);
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}
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tile.getRaster()->clear();
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// convert to RGB channel values
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TRaster32P ras32 = (TRaster32P)tile.getRaster();
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TRaster64P ras64 = (TRaster64P)tile.getRaster();
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if (ras32)
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outputRaster<TRaster32P, TPixel32>(ras32, out_buf, param);
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else if (ras64)
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outputRaster<TRaster64P, TPixel64>(ras64, out_buf, param);
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out_buf_ras->unlock();
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}
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//------------------------------------------------------------------
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// obtain current parameters
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void Iwa_FractalNoiseFx::obtainParams(FNParam ¶m, const double frame,
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const TAffine &aff) {
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param.fractalType = (FractalType)m_fractalType->getValue();
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param.noiseType = (NoiseType)m_noiseType->getValue();
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param.invert = m_invert->getValue();
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param.rotation = m_rotation->getValue(frame); // in degree, not radian
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if (m_uniformScaling->getValue()) { // uniform case
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double s = m_scale->getValue(frame);
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param.scale = TDimensionD(s, s);
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} else { // non-uniform case
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param.scale.lx = m_scaleW->getValue(frame);
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param.scale.ly = m_scaleH->getValue(frame);
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}
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assert(param.scale.lx != 0.0 && param.scale.ly != 0.0);
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if (param.scale.lx == 0.0) param.scale.lx = 1e-8;
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if (param.scale.ly == 0.0) param.scale.ly = 1e-8;
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param.offsetTurbulence = m_offsetTurbulence->getValue(frame);
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param.perspectiveOffset = m_perspectiveOffset->getValue();
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param.complexity = m_complexity->getValue(frame);
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if (param.complexity < 1.0)
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param.complexity =
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1.0; // at least the first generation is rendered in full opacity
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param.subInfluence =
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m_subInfluence->getValue(frame) / 100.0; // normalize to 0 - 1
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param.subScaling =
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m_subScaling->getValue(frame) / 100.0; // normalize to 0 - 1
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param.subRotation = m_subRotation->getValue(frame); // in degree, not radian
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param.subOffset = m_subOffset->getValue(frame);
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param.evolution = m_evolution->getValue(frame);
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param.cycleEvolution = m_cycleEvolution->getValue();
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param.cycleEvolutionRange = m_cycleEvolutionRange->getValue(frame);
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param.dynamicIntensity = m_dynamicIntensity->getValue(frame) * 10.0;
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param.alphaRendering = m_alphaRendering->getValue();
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}
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//------------------------------------------------------------------
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template <typename RASTER, typename PIXEL>
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void Iwa_FractalNoiseFx::outputRaster(const RASTER outRas, double *out_buf,
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const FNParam ¶m) {
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TDimension dim = outRas->getSize();
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double *buf_p = out_buf;
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for (int j = 0; j < dim.ly; j++) {
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PIXEL *pix = outRas->pixels(j);
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for (int i = 0; i < dim.lx; i++, pix++, buf_p++) {
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double val = (param.invert) ? 1.0 - (*buf_p) : (*buf_p);
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val = clamp(val, 0.0, 1.0);
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typename PIXEL::Channel chan = static_cast<typename PIXEL::Channel>(
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val * (double)PIXEL::maxChannelValue);
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pix->r = chan;
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pix->g = chan;
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pix->b = chan;
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pix->m = (param.alphaRendering) ? chan : PIXEL::maxChannelValue;
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}
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}
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}
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//------------------------------------------------------------------
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void Iwa_FractalNoiseFx::getParamUIs(TParamUIConcept *&concepts, int &length) {
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concepts = new TParamUIConcept[length = 2];
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concepts[0].m_type = TParamUIConcept::POINT;
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concepts[0].m_label = "Offset Turbulence";
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concepts[0].m_params.push_back(m_offsetTurbulence);
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concepts[1].m_type = TParamUIConcept::POINT;
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concepts[1].m_label = "Sub Offset";
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concepts[1].m_params.push_back(m_subOffset);
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}
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//------------------------------------------------------------------
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// For Dynamic and Dynamic Twist patterns, the position offsets using gradient /
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// rotation of the parent pattern
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TPointD Iwa_FractalNoiseFx::getSamplePos(int x, int y, const TDimension outDim,
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const double *out_buf, const int gen,
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const double scale,
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const FNParam ¶m) {
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// the position does not offset in the first generation
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if (gen == 0 || param.dynamicIntensity == 0.0 ||
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(param.fractalType != Dynamic && param.fractalType != DynamicTwist))
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return TPointD((double)x, (double)y);
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auto clampPos = [&](int x, int y) {
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if (x < 0)
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x = 0;
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else if (x >= outDim.lx)
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x = outDim.lx - 1;
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if (y < 0)
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y = 0;
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else if (y >= outDim.ly)
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y = outDim.ly - 1;
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return TPoint(x, y);
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};
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auto val = [&](const TPoint &p) { return out_buf[p.y * outDim.lx + p.x]; };
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int range = std::max(2, (int)(0.1 / scale));
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TPoint left = clampPos(x - range, y);
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TPoint right = clampPos(x + range, y);
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TPoint down = clampPos(x, y - range);
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TPoint up = clampPos(x, y + range);
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double dif_x = param.dynamicIntensity * (1 / scale) *
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(val(left) - val(right)) / (left.x - right.x);
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double dif_y = param.dynamicIntensity * (1 / scale) * (val(up) - val(down)) /
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(up.y - down.y);
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if (param.fractalType == Dynamic)
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return TPointD((double)x + dif_x, (double)y + dif_y); // gradient
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else // Dynamic_twist
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return TPointD((double)x + dif_y, (double)y - dif_x); // rotation
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}
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//------------------------------------------------------------------
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// convert the noise
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void Iwa_FractalNoiseFx::convert(double *buf, const FNParam ¶m) {
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if (param.fractalType == Basic || param.fractalType == Dynamic ||
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param.fractalType == DynamicTwist)
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return;
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switch (param.fractalType) {
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case TurbulentSmooth:
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*buf = std::pow(std::abs(*buf - 0.5), 2.0) * 3.75;
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*buf = to_linear_color_space(*buf, 1.0, turbulentGamma);
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break;
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case TurbulentBasic:
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*buf = std::pow(std::abs(*buf - 0.5), 1.62) * 4.454;
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*buf = to_linear_color_space(*buf, 1.0, turbulentGamma);
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break;
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case TurbulentSharp:
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*buf = std::pow(std::abs(*buf - 0.5), 0.725) * 1.77;
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*buf = to_linear_color_space(*buf, 1.0, turbulentGamma);
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break;
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case Max:
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*buf = std::abs(*buf - 0.5) * 1.96;
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break;
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case Rocky:
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// convertion LUT for the range from 0.43 to 0.57, every 0.01
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static double table[15] = {
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0.25, 0.256658635, 0.275550218, 0.30569519, 0.345275591,
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0.392513494, 0.440512, 0.5, 0.555085147, 0.607486506,
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0.654724409, 0.69430481, 0.724449782, 0.743341365, 0.75};
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if (*buf <= 0.43)
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*buf = 0.25;
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else if (*buf >= 0.57)
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*buf = 0.75;
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else {
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int id = (int)std::floor(*buf * 100.0) - 43;
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double t = *buf * 100.0 - (double)(id + 43);
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// linear interpolation the LUT values
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*buf = (1 - t) * table[id] + t * table[id + 1];
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}
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break;
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}
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}
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//------------------------------------------------------------------
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// composite the base noise pattern
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void Iwa_FractalNoiseFx::composite(double *out, double *buf,
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const double influence,
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const FNParam ¶m) {
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switch (param.fractalType) {
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case Basic:
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case Dynamic:
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case DynamicTwist:
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case Rocky: {
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// hard light composition
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double val = hardlight(out, buf);
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*out = (1.0 - influence) * (*out) + influence * val;
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break;
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}
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case TurbulentSmooth:
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case TurbulentBasic:
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case TurbulentSharp:
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// add composition in the linear color space
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*out += (*buf) * influence;
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|
break;
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|
case Max:
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|
// max composition
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|
*out = std::max(*out, influence * (*buf));
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|
break;
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|
default: {
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|
double val = hardlight(out, buf);
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*out = (1.0 - influence) * (*out) + influence * val;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
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//------------------------------------------------------------------
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|
// finalize pattern (coverting the color space)
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void Iwa_FractalNoiseFx::finalize(double *out, const FNParam ¶m) {
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|
assert(param.fractalType == TurbulentSmooth ||
|
|
param.fractalType == TurbulentBasic ||
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|
param.fractalType == TurbulentSharp);
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|
|
|
// TurbulentSmooth / TurbulentBasic / TurbulentSharp
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|
*out = to_nonlinear_color_space(*out, 1.0, turbulentGamma);
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|
}
|
|
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FX_PLUGIN_IDENTIFIER(Iwa_FractalNoiseFx, "iwa_FractalNoiseFx");
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