paysages: More water settings + lighted preview.

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@247 b1fd45b6-86a6-48da-8261-f70d1f35bdcc

gui_qt/formwater.cpp

@@ -7,6 +7,7 @@
 
 #include "../lib_paysages/terrain.h"
 #include "../lib_paysages/water.h"
+#include "../lib_paysages/lighting.h"
 #include "../lib_paysages/scenery.h"
 #include "../lib_paysages/renderer.h"
 #include "../lib_paysages/shared/functions.h"
@@ -36,7 +37,7 @@ protected:
         }
         else
         {
-            return colorToQColor(_definition.main_color);
+            return colorToQColor(_definition.material.base);
         }
     }
     void updateData()
@@ -54,11 +55,27 @@ class PreviewWaterColor:public Preview
 public:
     PreviewWaterColor(QWidget* parent):Preview(parent)
     {
+        LightDefinition light;
+        
         _water = waterCreateDefinition();
         
+        _lighting = lightingCreateDefinition();
+        light.color = COLOR_WHITE;
+        light.amplitude = 0.0;
+        light.direction.x = 0.0;
+        light.direction.y = -0.4794;
+        light.direction.z = 0.8776;
+        light.filtered = 0;
+        light.masked = 0;
+        light.reflection = 1.0;
+        lightingAddLight(&_lighting, light);
+        lightingValidateDefinition(&_lighting);
+
         _renderer = rendererGetFake();
         _renderer.rayWalking = _rayWalking;
-        // TODO Lighting
+        _renderer.applyLightingToSurface = _applyLightingToSurface;
+        _renderer.customData[0] = &_water;
+        _renderer.customData[1] = &_lighting;
     }
 protected:
     QColor getColor(double x, double y)
@@ -98,6 +115,8 @@ protected:
 private:
     Renderer _renderer;
     WaterDefinition _water;
+    LightingDefinition _lighting;
+    
     static RayCastingResult _rayWalking(Renderer* renderer, Vector3 location, Vector3 direction, int terrain, int water, int sky, int clouds)
     {
         RayCastingResult result;
@@ -129,6 +148,17 @@ private:
 
         return result;
     }
+    static Color _applyLightingToSurface(Renderer* renderer, Vector3 location, Vector3 normal, SurfaceMaterial material)
+    {
+        if (location.x >= 0.0)
+        {
+            return lightingApplyToSurface((LightingDefinition*)renderer->customData[1], renderer, location, normal, material);
+        }
+        else
+        {
+            return material.base;
+        }
+    }
 };
 
 /**************** Form ****************/
@@ -140,14 +170,17 @@ FormWater::FormWater(QWidget *parent):
     previewCoverage = new PreviewWaterCoverage(this);
     previewColor = new PreviewWaterColor(this);
     addPreview(previewCoverage, QString("Coverage preview"));
-    addPreview(previewColor, QString("Color preview"));
+    addPreview(previewColor, QString("Rendered preview (without/with lighting)"));
 
     addInputDouble("Height", &_definition.height, -10.0, 10.0, 0.1, 1.0);
-    addInputColor("Surface color", &_definition.main_color);
+    addInputColor("Surface color", &_definition.material.base);
+    addInputDouble("Light reflection", &_definition.material.reflection, 0.0, 1.0, 0.01, 0.1);
+    addInputDouble("Shininess to light", &_definition.material.shininess, 0.0, 20.0, 0.1, 1.0);
     addInputDouble("Transparency", &_definition.transparency, 0.0, 1.0, 0.001, 0.1);
     addInputDouble("Reflection", &_definition.reflection, 0.0, 1.0, 0.001, 0.1);
+    addInputDouble("Transparency distance", &_definition.transparency_depth, 0.0, 20.0, 0.1, 1.0);
     addInputColor("Depth color", &_definition.depth_color);
-    addInputDouble("Depth filtering", &_definition.transparency_depth, 0.0, 100.0, 0.5, 5.0);
+    addInputDouble("Light-through distance", &_definition.lighting_depth, 0.0, 20.0, 0.1, 1.0);
     addInputNoise("Waves noise", _definition.waves_noise);
     addInputDouble("Waves height", &_definition.waves_noise_height, 0.0, 0.1, 0.001, 0.01);
     addInputDouble("Waves scaling", &_definition.waves_noise_scale, 0.01, 1.0, 0.01, 0.1);

lib_paysages/auto.c

@@ -115,14 +115,17 @@ void autoGenRealisticLandscape(int seed)
     water.transparency = 0.5;
     water.reflection = 0.3;
     water.transparency_depth = 6.0;
-    water.main_color.r = 0.1;
+    water.material.base.r = 0.1;
-    water.main_color.g = 0.3;
+    water.material.base.g = 0.3;
-    water.main_color.b = 0.4;
+    water.material.base.b = 0.4;
-    water.main_color.a = 1.0;
+    water.material.base.a = 1.0;
+    water.material.reflection = 1.0;
+    water.material.shininess = 12.0;
     water.depth_color.r = 0.0;
     water.depth_color.g = 0.2;
     water.depth_color.b = 0.3;
     water.depth_color.a = 1.0;
+    water.lighting_depth = 3.0;
     water.waves_noise_height = 0.015;
     water.waves_noise_scale = 0.2;
     noiseGenerateBaseNoise(water.waves_noise, 262144);

lib_paysages/shared/functions.h

@@ -79,6 +79,8 @@ void toolsSaveDouble(FILE* f, double value);
 double toolsLoadDouble(FILE* f);
 void toolsSaveInt(FILE* f, int value);
 int toolsLoadInt(FILE* f);
+void materialSave(FILE* f, SurfaceMaterial* material);
+void materialLoad(FILE* f, SurfaceMaterial* material);
 
 /* zone.c */
 Zone* zoneCreate();

lib_paysages/tools.c

@@ -79,3 +79,16 @@ int toolsLoadInt(FILE* f)
     return value;
 }
 
+void materialSave(FILE* f, SurfaceMaterial* material)
+{
+    colorSave(material->base, f);
+    toolsSaveDouble(f, material->reflection);
+    toolsSaveDouble(f, material->shininess);
+}
+
+void materialLoad(FILE* f, SurfaceMaterial* material)
+{
+    material->base = colorLoad(f);
+    material->reflection = toolsLoadDouble(f);
+    material->shininess = toolsLoadDouble(f);
+}

lib_paysages/water.c

@@ -17,11 +17,12 @@ void waterInit()
 void waterSave(FILE* f, WaterDefinition* definition)
 {
     toolsSaveDouble(f, definition->height);
-    colorSave(definition->main_color, f);
+    materialSave(f, &definition->material);
     colorSave(definition->depth_color, f);
     toolsSaveDouble(f, definition->transparency_depth);
     toolsSaveDouble(f, definition->transparency);
     toolsSaveDouble(f, definition->reflection);
+    toolsSaveDouble(f, definition->lighting_depth);
     noiseSave(definition->waves_noise, f);
     toolsSaveDouble(f, definition->waves_noise_height);
     toolsSaveDouble(f, definition->waves_noise_scale);
@@ -30,11 +31,12 @@ void waterSave(FILE* f, WaterDefinition* definition)
 void waterLoad(FILE* f, WaterDefinition* definition)
 {
     definition->height = toolsLoadDouble(f);
-    definition->main_color = colorLoad(f);
+    materialLoad(f, &definition->material);
     definition->depth_color = colorLoad(f);
     definition->transparency_depth = toolsLoadDouble(f);
     definition->transparency = toolsLoadDouble(f);
     definition->reflection = toolsLoadDouble(f);
+    definition->lighting_depth = toolsLoadDouble(f);
     noiseLoad(definition->waves_noise, f);
     definition->waves_noise_height = toolsLoadDouble(f);
     definition->waves_noise_scale = toolsLoadDouble(f);
@@ -46,12 +48,15 @@ WaterDefinition waterCreateDefinition()
 {
     WaterDefinition result;
 
-    result.main_color = COLOR_BLACK;
+    result.material.base = COLOR_BLACK;
+    result.material.reflection = 0.0;
+    result.material.shininess = 0.0;
     result.depth_color = COLOR_BLACK;
     result.height = -1000.0;
     result.reflection = 0.0;
     result.transparency = 0.0;
     result.transparency_depth = 0.0;
+    result.lighting_depth = 0.0;
     result.waves_noise = noiseCreateGenerator();
     result.waves_noise_height = 0.02;
     result.waves_noise_scale = 0.2;
@@ -137,7 +142,7 @@ Color waterLightFilter(WaterDefinition* definition, Renderer* renderer, Color li
     {
         if (direction_to_light.y > 0.00001)
         {
-            factor = (definition->height - location.y) / (direction_to_light.y * 3.0); // TODO Configurable
+            factor = (definition->height - location.y) / (direction_to_light.y * definition->lighting_depth);
             if (factor > 1.0)
             {
                 factor = 1.0;
@@ -193,18 +198,17 @@ WaterResult waterGetColorDetail(WaterDefinition* definition, Renderer* renderer,
         result.refracted.a = 1.0;
     }
 
-    color.r = definition->main_color.r * (1.0 - definition->transparency) + result.reflected.r * definition->reflection + result.refracted.r * definition->transparency;
+    color.r = definition->material.base.r * (1.0 - definition->transparency) + result.reflected.r * definition->reflection + result.refracted.r * definition->transparency;
-    color.g = definition->main_color.g * (1.0 - definition->transparency) + result.reflected.g * definition->reflection + result.refracted.g * definition->transparency;
+    color.g = definition->material.base.g * (1.0 - definition->transparency) + result.reflected.g * definition->reflection + result.refracted.g * definition->transparency;
-    color.b = definition->main_color.b * (1.0 - definition->transparency) + result.reflected.b * definition->reflection + result.refracted.b * definition->transparency;
+    color.b = definition->material.base.b * (1.0 - definition->transparency) + result.reflected.b * definition->reflection + result.refracted.b * definition->transparency;
     color.a = 1.0;
 
+    material = definition->material;
     material.base = color;
-    material.reflection = 1.0;
-    material.shininess = 12.0;
     color = renderer->applyLightingToSurface(renderer, location, normal, material);
     color = renderer->applyAtmosphere(renderer, location, color);
 
-    result.base = definition->main_color;
+    result.base = definition->material.base;
     result.final = color;
 
     return result;

lib_paysages/water.h

@@ -16,9 +16,10 @@ typedef struct
     double height;
     double transparency;
     double reflection;
-    Color main_color;
+    SurfaceMaterial material;
     Color depth_color;
     double transparency_depth;
+    double lighting_depth;
     NoiseGenerator* waves_noise;
     double waves_noise_height;
     double waves_noise_scale;