paysages3d/gui_qt/formwater.cpp

265 lines
8.1 KiB
C++

#include "basepreview.h"
#include "formwater.h"
#include <QColor>
#include <QSlider>
#include <math.h>
#include "../lib_paysages/tools/euclid.h"
#include "../lib_paysages/tools/lighting.h"
#include "../lib_paysages/renderer.h"
#include "../lib_paysages/scenery.h"
#include "../lib_paysages/water/public.h"
#include "tools.h"
static WaterDefinition* _definition;
/**************** Previews ****************/
class PreviewWaterCoverage:public BasePreview
{
public:
PreviewWaterCoverage(QWidget* parent):BasePreview(parent)
{
_renderer = waterCreatePreviewCoverageRenderer();
_highlight_enabled = true;
addOsd(QString("geolocation"));
addToggle("highlight", tr("Coverage highlight"), true);
configScaling(20.0, 1000.0, 20.0, 50.0);
configScrolling(-1000.0, 1000.0, 0.0, -1000.0, 1000.0, 0.0);
}
protected:
Color getColor(double x, double y)
{
return waterGetPreviewCoverage(_renderer, x, y, scaling, _highlight_enabled ? 1 : 0);
}
void updateData()
{
WaterRendererClass.bind(_renderer, _definition);
// TODO Do this only on full refresh
TerrainDefinition* terrain = (TerrainDefinition*)TerrainDefinitionClass.create();
sceneryGetTerrain(terrain);
TerrainRendererClass.bind(_renderer, terrain);
TerrainDefinitionClass.destroy(terrain);
}
void toggleChangeEvent(QString key, bool value)
{
if (key == "highlight")
{
_highlight_enabled = value;
redraw();
}
}
private:
Renderer* _renderer;
bool _highlight_enabled;
};
class PreviewWaterColor:public BasePreview
{
public:
PreviewWaterColor(QWidget* parent):BasePreview(parent)
{
_background = 0;
_lighting_enabled = false;
_renderer = rendererCreate();
_renderer->atmosphere->getLightingStatus = _getLightingStatus;
_renderer->rayWalking = _rayWalking;
_renderer->customData[0] = this;
//cameraSetTarget(&_renderer->render_camera, 0.0, 0.0, 0.0);
configScaling(10.0, 1000.0, 10.0, 250.0);
//configScrolling(-30.0, 30.0, 0.0, -20.0, 20.0, 0.0);
addChoice("bg", tr("Background"), QStringList(tr("None")) << tr("Grid") << tr("Sinusoid"), 2);
addToggle("light", tr("Light reflection"), true);
}
int _background;
bool _lighting_enabled;
protected:
Color getColor(double x, double y)
{
Vector3 eye, look;
double target_x, target_z;
eye.x = 0.0;
eye.y = scaling;
eye.z = -10.0 * scaling;
look.x = x * 0.01 / scaling;
look.y = -y * 0.01 / scaling - 0.3;
look.z = 1.0;
look = v3Normalize(look);
if (look.y > -0.0001)
{
return _rayWalking(_renderer, eye, look, 0, 0, 0, 0).hit_color;
}
target_x = eye.x - look.x * eye.y / look.y;
target_z = eye.z - look.z * eye.y / look.y;
if (target_z > 0.0)
{
return _rayWalking(_renderer, eye, look, 0, 0, 0, 0).hit_color;
}
return _renderer->water->getResult(_renderer, target_x, target_z).final;
}
void cameraEvent()
{
cameraSetLocation(&_renderer->render_camera, 0.0, scaling, -10.0 * scaling);
}
void updateData()
{
WaterRendererClass.bind(_renderer, _definition);
_renderer->water->definition->height = 0.0;
}
void choiceChangeEvent(const QString& key, int position)
{
if (key == "bg")
{
_background = position;
redraw();
}
}
void toggleChangeEvent(QString key, bool value)
{
if (key == "light")
{
_lighting_enabled = value;
redraw();
}
}
private:
Renderer* _renderer;
static RayCastingResult _rayWalking(Renderer* renderer, Vector3 location, Vector3 direction, int, int, int, int)
{
RayCastingResult result;
PreviewWaterColor* preview = (PreviewWaterColor*)renderer->customData[0];
double x, y;
result.hit = 1;
if (direction.z < 0.0001)
{
result.hit_color = COLOR_WHITE;
result.hit_location = location;
}
else
{
x = location.x + direction.x * (0.0 - location.z) / direction.z;
y = location.y + direction.y * (0.0 - location.z) / direction.z;
switch (preview->_background)
{
case 1:
result.hit_color = (((int)ceil(x * 0.2) % 2 == 0) ^ ((int)ceil(y * 0.2 - 0.5) % 2 == 0)) ? COLOR_WHITE : COLOR_BLACK;
break;
case 2:
result.hit_color = (y * 0.1 > x * 0.03 + sin(x - M_PI_2)) ? COLOR_WHITE : COLOR_BLACK;
break;
default:
result.hit_color = COLOR_WHITE;
}
result.hit_location.x = x;
result.hit_location.y = y;
result.hit_location.z = 0.0;
if (result.hit_location.y < 0.0)
{
if (result.hit_location.y < -renderer->water->definition->lighting_depth)
{
result.hit_color = COLOR_BLACK;
}
else
{
double attenuation = -result.hit_location.y / renderer->water->definition->lighting_depth;
result.hit_color.r *= 1.0 - attenuation;
result.hit_color.g *= 1.0 - attenuation;
result.hit_color.b *= 1.0 - attenuation;
}
}
}
return result;
}
static void _getLightingStatus(Renderer* renderer, LightStatus* status, Vector3, int)
{
LightDefinition light;
PreviewWaterColor* preview = (PreviewWaterColor*)renderer->customData[0];
light.color = COLOR_WHITE;
light.direction.x = 0.0;
light.direction.y = -0.4794;
light.direction.z = -0.8776;
light.altered = 0;
if (preview->_lighting_enabled)
{
light.reflection = 1.0;
}
else
{
light.reflection = 0.0;
}
lightingPushLight(status, &light);
}
};
/**************** Form ****************/
FormWater::FormWater(QWidget *parent):
BaseForm(parent)
{
addAutoPreset(tr("Lake surface"));
addAutoPreset(tr("Standard sea"));
_definition = (WaterDefinition*)WaterDefinitionClass.create();
previewCoverage = new PreviewWaterCoverage(this);
previewColor = new PreviewWaterColor(this);
addPreview(previewCoverage, tr("Coverage preview"));
addPreview(previewColor, tr("Rendered preview"));
addInputDouble(tr("Height"), &_definition->height, -15.0, 15.0, 0.1, 1.0);
addInputMaterial(tr("Surface material"), &_definition->material);
addInputColor(tr("Depth color"), &_definition->depth_color);
addInputDouble(tr("Transparency"), &_definition->transparency, 0.0, 1.0, 0.001, 0.1);
addInputDouble(tr("Reflection"), &_definition->reflection, 0.0, 1.0, 0.001, 0.1);
addInputDouble(tr("Transparency distance"), &_definition->transparency_depth, 0.0, 20.0, 0.1, 1.0);
addInputDouble(tr("Light-through distance"), &_definition->lighting_depth, 0.0, 20.0, 0.1, 1.0);
addInputDouble(tr("Waves scaling"), &_definition->scaling, 0.02, 2.0, 0.02, 0.2);
addInputDouble(tr("Waves height"), &_definition->waves_height, 0.0, 2.0, 0.02, 0.2);
addInputDouble(tr("Waves detail"), &_definition->detail_height, 0.0, 0.3, 0.003, 0.03);
addInputDouble(tr("Waves turbulence"), &_definition->turbulence, 0.0, 0.5, 0.005, 0.05);
addInputDouble(tr("Foam coverage"), &_definition->foam_coverage, 0.0, 1.0, 0.01, 0.1);
addInputMaterial(tr("Foam material"), &_definition->foam_material);
revertConfig();
}
void FormWater::revertConfig()
{
sceneryGetWater(_definition);
BaseForm::revertConfig();
}
void FormWater::applyConfig()
{
scenerySetWater(_definition);
BaseForm::applyConfig();
}
void FormWater::configChangeEvent()
{
WaterDefinitionClass.validate(_definition);
BaseForm::configChangeEvent();
}
void FormWater::autoPresetSelected(int preset)
{
waterAutoPreset(_definition, (WaterPreset)preset);
BaseForm::autoPresetSelected(preset);
}