paysages : Added noise ridge factor.
git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@425 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
This commit is contained in:
ThunderK
parent
6cd571f92f
commit
163cca53a9
10 changed files with 174 additions and 44 deletions
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@ -8,6 +8,7 @@
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#include <QSlider>
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#include <QScrollArea>
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#include <QPushButton>
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#include <math.h>
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/**************** Previews ****************/
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class PreviewLevel:public BasePreview
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@ -34,13 +35,13 @@ protected:
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}
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QColor getColor(double x, double y)
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{
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if ((_level >= 0) && (y > noiseGet1DLevel(_noise_preview, _level, x)))
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if ((_level >= 0) && (-y > noiseGet1DLevel(_noise_preview, _level, x)))
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{
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return QColor(255, 255, 255);
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return Qt::black;
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}
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else
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{
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return QColor(0, 0, 0);
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return Qt::white;
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}
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}
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private:
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@ -66,13 +67,13 @@ protected:
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}
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QColor getColor(double x, double y)
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{
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if (y > noiseGet1DTotal(_noise_preview, x))
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if (-y > noiseGet1DTotal(_noise_preview, x))
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{
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return QColor(255, 255, 255);
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return Qt::black;
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}
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else
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{
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return QColor(0, 0, 0);
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return Qt::white;
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}
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}
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private:
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@ -84,6 +85,7 @@ private:
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DialogNoise::DialogNoise(QWidget *parent, NoiseGenerator* value):
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DialogWithPreview(parent)
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{
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QWidget* function;
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QWidget* previews;
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QWidget* form;
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QWidget* buttons;
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@ -116,6 +118,23 @@ DialogNoise::DialogNoise(QWidget *parent, NoiseGenerator* value):
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form->setLayout(new QVBoxLayout());
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layout()->addWidget(form);
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function = new QWidget(form);
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function->setLayout(new QHBoxLayout());
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form->layout()->addWidget(function);
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function->layout()->addWidget(new QLabel(tr("Noise function")));
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function_algo = new QComboBox(function);
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function_algo->addItems(QStringList(tr("Simplex")) << tr("Perlin") << tr("Naive"));
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function->layout()->addWidget(function_algo);
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function->layout()->addWidget(new QLabel(tr("Ridge factor")));
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function_ridge = new QSlider(Qt::Horizontal, function);
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function_ridge->setRange(-10, 10);
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function_ridge->setTickInterval(10);
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function_ridge->setTickPosition(QSlider::TicksBelow);
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function->layout()->addWidget(function_ridge);
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QObject::connect(function_algo, SIGNAL(currentIndexChanged(int)), this, SLOT(functionChanged()));
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QObject::connect(function_ridge, SIGNAL(valueChanged(int)), this, SLOT(functionChanged()));
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form->layout()->addWidget(new QLabel(tr("Noise components")));
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levels = new QListWidget(form);
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form->layout()->addWidget(levels);
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@ -223,6 +242,7 @@ void DialogNoise::revertToCurrent()
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{
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int i, n;
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int selected;
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NoiseFunction function;
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selected = levels->currentRow();
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@ -246,6 +266,10 @@ void DialogNoise::revertToCurrent()
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levels->setCurrentRow(selected);
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}
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function = noiseGetFunction(_current);
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function_algo->setCurrentIndex((int)function.algorithm);
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function_ridge->setValue(round(function.ridge_factor * 20.0));
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previewLevel->redraw();
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previewTotal->redraw();
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}
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@ -283,6 +307,20 @@ void DialogNoise::removeLevel()
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levels->setCurrentRow(row);
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}
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void DialogNoise::functionChanged()
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{
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NoiseFunction function;
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function.algorithm = (NoiseFunctionAlgorithm)function_algo->currentIndex();
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function.ridge_factor = (double)function_ridge->value() * 0.05;
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noiseSetFunction(_current, &function);
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noiseValidate(_current);
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previewLevel->redraw();
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previewTotal->redraw();
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}
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void DialogNoise::levelChanged(int row)
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{
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if (noiseGetLevel(_current, row, &_current_level_params))
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@ -2,6 +2,7 @@
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#define _PAYSAGES_QT_DIALOGNOISE_H_
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#include <QListWidget>
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#include <QComboBox>
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#include "basepreview.h"
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#include "tools.h"
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@ -29,6 +30,7 @@ private:
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private slots:
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void addLevel();
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void removeLevel();
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void functionChanged();
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void levelChanged(int row);
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void heightChanged(int value);
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void scalingChanged(int value);
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@ -40,6 +42,8 @@ private:
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NoiseLevel _current_level_params;
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BasePreview* previewLevel;
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BasePreview* previewTotal;
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QComboBox* function_algo;
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QSlider* function_ridge;
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QListWidget* levels;
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QSlider* slider_height;
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QSlider* slider_scaling;
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@ -14,7 +14,7 @@ public:
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PreviewCloudsCoverage(QWidget* parent, CloudsLayerDefinition* layer):BasePreview(parent)
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{
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_renderer = rendererCreate();
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_renderer.render_quality = 3;
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_renderer.render_quality = 5;
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_renderer.applyLightStatus = _applyLightStatus;
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_original_layer = layer;
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@ -81,7 +81,7 @@ public:
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lightingValidateDefinition(&_lighting);
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_renderer = rendererCreate();
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_renderer.render_quality = 3;
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_renderer.render_quality = 8;
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_renderer.alterLight = _alterLight;
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_renderer.getLightStatus = _getLightStatus;
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_renderer.customData[0] = _preview_layer;
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@ -109,9 +109,9 @@ protected:
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void updateData()
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{
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cloudsLayerCopyDefinition(_original_layer, _preview_layer);
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//noiseForceValue(_preview_layer.shape_noise, 1.0);
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//noiseForceValue(_preview_layer->shape_noise, 1.0);
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_preview_layer->lower_altitude = -_preview_layer->thickness * 0.5;
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//curveClear(_preview_layer.coverage_by_altitude);
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//curveClear(_preview_layer->coverage_by_altitude);
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_preview_layer->base_coverage = 1.0;
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_preview_layer->_custom_coverage = _coverageFunc;
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}
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@ -172,8 +172,8 @@ FormClouds::FormClouds(QWidget *parent):
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addInputDouble(tr("Edge length"), &_layer->edge_length, 0.0, 1.0, 0.01, 0.1);
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addInputMaterial(tr("Material"), &_layer->material);
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addInputDouble(tr("Hardness to light"), &_layer->hardness, 0.0, 1.0, 0.01, 0.1);
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addInputDouble(tr("Transparency depth"), &_layer->transparencydepth, 0.0, 100.0, 0.5, 5.0);
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addInputDouble(tr("Light traversal depth"), &_layer->lighttraversal, 0.0, 100.0, 0.5, 5.0);
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addInputDouble(tr("Transparency depth"), &_layer->transparencydepth, 0.0, 10.0, 0.1, 1.0);
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addInputDouble(tr("Light traversal depth"), &_layer->lighttraversal, 0.0, 10.0, 0.1, 1.0);
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addInputDouble(tr("Minimum lighting"), &_layer->minimumlight, 0.0, 1.0, 0.01, 0.1);
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setLayers(_definition.layers);
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@ -31,10 +31,10 @@ public:
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for (int x = 0; x < width; x++)
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{
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factor = ((double)(height / 2)) / noiseGetMaxValue(noise);
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value = noiseGet1DTotal(noise, ((double)x) / factor) * factor;
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painter.setPen(QColor(255, 255, 255));
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value = -noiseGet1DTotal(noise, ((double)x) / factor) * factor;
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painter.setPen(Qt::white);
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painter.drawLine(x, 0, x, height / 2 + value);
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painter.setPen(QColor(0, 0, 0));
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painter.setPen(Qt::black);
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painter.drawLine(x, height / 2 + value + 1, x, height);
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}
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}
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@ -100,6 +100,7 @@ void autoGenRealisticLandscape(int seed)
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noiseClearLevels(water.waves_noise);
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noiseAddLevelsSimple(water.waves_noise, 2, 1.0, 1.0);
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noiseAddLevelsSimple(water.waves_noise, 3, 0.15, 0.1);
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noiseSetFunctionParams(water.waves_noise, NOISE_FUNCTION_SIMPLEX, -0.3);
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scenerySetWater(&water);
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waterDeleteDefinition(&water);
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@ -137,8 +138,9 @@ void autoGenRealisticLandscape(int seed)
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terrain = terrainCreateDefinition();
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noiseClearLevels(terrain.height_noise);
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noiseAddLevelsSimple(terrain.height_noise, 10, 1.0, 1.0);
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noiseSetFunctionParams(terrain.height_noise, NOISE_FUNCTION_SIMPLEX, -0.2);
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terrain.height_factor = 12.0 / noiseGetMaxValue(terrain.height_noise);
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terrain.scaling = 60.0;
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terrain.scaling = 80.0;
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terrain.shadow_smoothing = 0.03;
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scenerySetTerrain(&terrain);
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terrainDeleteDefinition(&terrain);
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@ -89,13 +89,15 @@ CloudsLayerDefinition* cloudsLayerCreateDefinition()
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result->lighttraversal = 7.0;
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result->minimumlight = 0.4;
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result->shape_scaling = 10.0;
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result->edge_scaling = 0.2;
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result->edge_length = 0.2;
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result->edge_scaling = 0.3;
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result->edge_length = 0.4;
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result->base_coverage = 0.35;
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result->shape_noise = noiseCreateGenerator();
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noiseAddLevelsSimple(result->shape_noise, 5, 1.0, 1.0);
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noiseAddLevelsSimple(result->shape_noise, 6, 1.0, 1.0);
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noiseSetFunctionParams(result->shape_noise, NOISE_FUNCTION_SIMPLEX, 0.3);
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result->edge_noise = noiseCreateGenerator();
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noiseAddLevelsSimple(result->edge_noise, 8, 1.0, 1.0);
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noiseSetFunctionParams(result->edge_noise, NOISE_FUNCTION_SIMPLEX, 0.5);
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result->_custom_coverage = _standardCoverageFunc;
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@ -13,11 +13,15 @@ struct NoiseLevel;
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struct NoiseGenerator
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{
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NoiseFunction function;
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double height_offset;
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int level_count;
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struct NoiseLevel levels[MAX_LEVEL_COUNT];
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double _max_height;
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double (*_func_noise_1d)(double x);
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double (*_func_noise_2d)(double x, double y);
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double (*_func_noise_3d)(double x, double y, double z);
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};
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void noiseInit()
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@ -45,6 +49,8 @@ NoiseGenerator* noiseCreateGenerator()
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/* initialize */
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result = malloc(sizeof(NoiseGenerator));
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result->function.algorithm = NOISE_FUNCTION_SIMPLEX;
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result->function.ridge_factor = 0.0;
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result->level_count = 0;
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result->height_offset = 0.0;
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@ -62,6 +68,10 @@ void noiseSaveGenerator(PackStream* stream, NoiseGenerator* generator)
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{
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int x;
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x = (int)generator->function.algorithm;
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packWriteInt(stream, &x);
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packWriteDouble(stream, &generator->function.ridge_factor);
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packWriteDouble(stream, &generator->height_offset);
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packWriteInt(stream, &generator->level_count);
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@ -81,6 +91,10 @@ void noiseLoadGenerator(PackStream* stream, NoiseGenerator* generator)
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{
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int x;
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packReadInt(stream, &x);
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generator->function.algorithm = (NoiseFunctionAlgorithm)x;
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packReadDouble(stream, &generator->function.ridge_factor);
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packReadDouble(stream, &generator->height_offset);
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packReadInt(stream, &generator->level_count);
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@ -100,6 +114,7 @@ void noiseLoadGenerator(PackStream* stream, NoiseGenerator* generator)
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void noiseCopy(NoiseGenerator* source, NoiseGenerator* destination)
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{
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destination->function = source->function;
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destination->height_offset = source->height_offset;
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destination->level_count = source->level_count;
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@ -113,6 +128,34 @@ void noiseValidate(NoiseGenerator* generator)
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int x;
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double max_height = generator->height_offset;
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if (generator->function.algorithm < 0 || generator->function.algorithm > NOISE_FUNCTION_NAIVE)
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{
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generator->function.algorithm = NOISE_FUNCTION_SIMPLEX;
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}
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switch (generator->function.algorithm)
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{
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case NOISE_FUNCTION_SIMPLEX:
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generator->_func_noise_1d = noiseSimplexGet1DValue;
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generator->_func_noise_2d = noiseSimplexGet2DValue;
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generator->_func_noise_3d = noiseSimplexGet3DValue;
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break;
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case NOISE_FUNCTION_PERLIN:
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/*TODO*/
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break;
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case NOISE_FUNCTION_NAIVE:
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/* TODO */
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break;
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}
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if (generator->function.ridge_factor > 0.5)
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{
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generator->function.ridge_factor = 0.5;
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}
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if (generator->function.ridge_factor < -0.5)
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{
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generator->function.ridge_factor = -0.5;
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}
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for (x = 0; x < generator->level_count; x++)
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{
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max_height += generator->levels[x].height / 2.0;
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@ -121,6 +164,23 @@ void noiseValidate(NoiseGenerator* generator)
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generator->_max_height = max_height;
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}
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NoiseFunction noiseGetFunction(NoiseGenerator* generator)
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{
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return generator->function;
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}
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void noiseSetFunction(NoiseGenerator* generator, NoiseFunction* function)
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{
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generator->function = *function;
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noiseValidate(generator);
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}
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void noiseSetFunctionParams(NoiseGenerator* generator, NoiseFunctionAlgorithm algorithm, double ridge_factor)
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{
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NoiseFunction function = {algorithm, ridge_factor};
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noiseSetFunction(generator, &function);
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}
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void noiseForceValue(NoiseGenerator* generator, double value)
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{
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noiseClearLevels(generator);
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@ -269,17 +329,28 @@ void noiseNormalizeHeight(NoiseGenerator* generator, double min_height, double m
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noiseValidate(generator);
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}
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static inline double _get1DRawNoiseValue(NoiseGenerator* generator, double x)
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static inline double _applyRidge(double value, double ridge)
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{
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return noiseSimplexGet2DValue(x, 0.0) * 0.5;
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if (ridge > 0.0)
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{
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return fabs(value + 0.5 - ridge) - 0.5 + ridge;
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}
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else if (ridge < 0.0)
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{
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return -fabs(value - 0.5 - ridge) + 0.5 + ridge;
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}
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else
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{
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return value;
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}
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}
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static inline double _get1DLevelValue(NoiseGenerator* generator, NoiseLevel* level, double x)
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{
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return _get1DRawNoiseValue(generator, x / level->scaling + level->xoffset) * level->height;
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return _applyRidge(generator->_func_noise_1d(x / level->scaling + level->xoffset) * level->height, generator->function.ridge_factor);
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}
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double noiseGet1DLevel(NoiseGenerator* generator, int level, double x)
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@ -334,14 +405,9 @@ double noiseGet1DDetail(NoiseGenerator* generator, double x, double detail)
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static inline double _get2DRawNoiseValue(NoiseGenerator* generator, double x, double y)
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{
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return noiseSimplexGet2DValue(x, y) * 0.5;
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}
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static inline double _get2DLevelValue(NoiseGenerator* generator, NoiseLevel* level, double x, double y)
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{
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return _get2DRawNoiseValue(generator, x / level->scaling + level->xoffset, y / level->scaling + level->yoffset) * level->height;
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return _applyRidge(generator->_func_noise_2d(x / level->scaling + level->xoffset, y / level->scaling + level->yoffset) * level->height, generator->function.ridge_factor);
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}
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double noiseGet2DLevel(NoiseGenerator* generator, int level, double x, double y)
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@ -396,14 +462,9 @@ double noiseGet2DDetail(NoiseGenerator* generator, double x, double y, double de
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static inline double _get3DRawNoiseValue(NoiseGenerator* generator, double x, double y, double z)
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{
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return noiseSimplexGet3DValue(x, y, z) * 0.5;
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}
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static inline double _get3DLevelValue(NoiseGenerator* generator, NoiseLevel* level, double x, double y, double z)
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{
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return _get3DRawNoiseValue(generator, x / level->scaling + level->xoffset, y / level->scaling + level->yoffset, z / level->scaling + level->zoffset) * level->height;
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return _applyRidge(generator->_func_noise_3d(x / level->scaling + level->xoffset, y / level->scaling + level->yoffset, z / level->scaling + level->zoffset) * level->height, generator->function.ridge_factor);
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}
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double noiseGet3DLevel(NoiseGenerator* generator, int level, double x, double y, double z)
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@ -7,6 +7,19 @@
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extern "C" {
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#endif
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typedef enum
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{
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NOISE_FUNCTION_SIMPLEX,
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NOISE_FUNCTION_PERLIN,
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NOISE_FUNCTION_NAIVE
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} NoiseFunctionAlgorithm;
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typedef struct
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{
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NoiseFunctionAlgorithm algorithm;
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double ridge_factor;
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} NoiseFunction;
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struct NoiseLevel
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{
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double scaling;
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@ -29,6 +42,9 @@ void noiseSaveGenerator(PackStream* stream, NoiseGenerator* generator);
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void noiseLoadGenerator(PackStream* stream, NoiseGenerator* generator);
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void noiseCopy(NoiseGenerator* source, NoiseGenerator* destination);
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void noiseValidate(NoiseGenerator* generator);
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NoiseFunction noiseGetFunction(NoiseGenerator* generator);
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void noiseSetFunction(NoiseGenerator* generator, NoiseFunction* function);
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void noiseSetFunctionParams(NoiseGenerator* generator, NoiseFunctionAlgorithm algorithm, double ridge_factor);
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||||
void noiseForceValue(NoiseGenerator* generator, double value);
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double noiseGetMaxValue(NoiseGenerator* generator);
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int noiseGetLevelCount(NoiseGenerator* generator);
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||||
|
|
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|||
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|
@ -139,6 +139,12 @@ void noiseSimplexInit()
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|||
_G4 = (5.0 - sqrt(5.0)) / 20.0;
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||||
}
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||||
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||||
double noiseSimplexGet1DValue(double xin)
|
||||
{
|
||||
/* TODO Find custom function */
|
||||
return noiseSimplexGet2DValue(xin, 0.0);
|
||||
}
|
||||
|
||||
double noiseSimplexGet2DValue(double xin, double yin)
|
||||
{
|
||||
double n0, n1, n2; /* Noise contributions from the three corners */
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|
|
@ -200,8 +206,8 @@ double noiseSimplexGet2DValue(double xin, double yin)
|
|||
n2 = t2 * t2 * _dot2(_grad3[gi2], x2, y2);
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||||
}
|
||||
/* Add contributions from each corner to get the final noise value.
|
||||
The result is scaled to return values in the interval [-1,1]. */
|
||||
return 70.0 * (n0 + n1 + n2);
|
||||
The result is scaled to return values in the interval [-0.5,0.5]. */
|
||||
return 35.0 * (n0 + n1 + n2);
|
||||
}
|
||||
|
||||
double noiseSimplexGet3DValue(double xin, double yin, double zin)
|
||||
|
|
@ -334,8 +340,8 @@ double noiseSimplexGet3DValue(double xin, double yin, double zin)
|
|||
n3 = t3 * t3 * _dot3(_grad3[gi3], x3, y3, z3);
|
||||
}
|
||||
/* Add contributions from each corner to get the final noise value.
|
||||
The result is scaled to stay just inside [-1,1] */
|
||||
return 32.0 * (n0 + n1 + n2 + n3);
|
||||
The result is scaled to stay just inside [-0.5,0.5] */
|
||||
return 16.0 * (n0 + n1 + n2 + n3);
|
||||
}
|
||||
|
||||
double noiseSimplexGet4DValue(double x, double y, double z, double w)
|
||||
|
|
@ -462,6 +468,6 @@ double noiseSimplexGet4DValue(double x, double y, double z, double w)
|
|||
t4 *= t4;
|
||||
n4 = t4 * t4 * _dot4(_grad4[gi4], x4, y4, z4, w4);
|
||||
}
|
||||
/* Sum up and scale the result to cover the range [-1,1] */
|
||||
return 27.0 * (n0 + n1 + n2 + n3 + n4);
|
||||
/* Sum up and scale the result to cover the range [-0.5,0.5] */
|
||||
return 13.5 * (n0 + n1 + n2 + n3 + n4);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@ extern "C" {
|
|||
#endif
|
||||
|
||||
void noiseSimplexInit();
|
||||
double noiseSimplexGet1DValue(double xin);
|
||||
double noiseSimplexGet2DValue(double xin, double yin);
|
||||
double noiseSimplexGet3DValue(double xin, double yin, double zin);
|
||||
double noiseSimplexGet4DValue(double x, double y, double z, double w);
|
||||
|
|
|
|||
Loading…
Reference in a new issue