Separated MoonRenderer

src/definition/TextureLayerDefinition.cpp

@@ -80,7 +80,7 @@ void TextureLayerDefinition::applyPreset(TextureLayerPreset preset, RandomGenera
         break;
     case TEXTURES_LAYER_PRESET_ROCK:
         terrain_zone->addHeightRangeQuick(1.0, 0.6, 0.7, 0.87, 0.95);
-        displacement_noise->setConfig(4.0, 0.3, 0.5, 0.85);
+        displacement_noise->setConfig(4.0, 0.15, 0.5, 0.8);
         detail_noise->setConfig(0.02, 0.04);
         material->setColor(0.6, 0.55, 0.57, 1.0);
         material->reflection = 0.006;

src/render/software/AtmosphereRenderer.cpp

@@ -10,6 +10,7 @@
 #include "LightStatus.h"
 #include "Scenery.h"
 #include "NightSky.h"
+#include "MoonRenderer.h"
 #include "CelestialBodyDefinition.h"
 #include "FloatNode.h"
 
@@ -171,6 +172,9 @@ AtmosphereResult SoftwareBrunetonAtmosphereRenderer::getSkyColor(const Vector3 &
         }
     }*/
 
+    // Get the moon
+    base.mask(parent->getMoonRenderer().getColor(camera_location, direction_norm, parent->getLightingManager()));
+
     // Get scattering
     AtmosphereResult result;
     Vector3 location = camera_location.add(direction_norm.scale(Scenery::FAR_LIMIT_SCALED));
@@ -194,6 +198,7 @@ AtmosphereResult SoftwareBrunetonAtmosphereRenderer::getSkyColor(const Vector3 &
 bool SoftwareBrunetonAtmosphereRenderer::getLightsAt(vector<LightComponent> &result, const Vector3 &location) const {
     bool changed = false;
     changed |= model->getLightsAt(result, location);
+    // FIXME Should be registered on its own
     changed |= parent->getNightSky()->getLightsAt(result, location);
     return changed;
 }

src/render/software/MoonRenderer.cpp

@@ -0,0 +1,72 @@
+#include "MoonRenderer.h"
+
+#include "CelestialBodyDefinition.h"
+#include "Color.h"
+#include "LightingManager.h"
+#include "Geometry.h"
+#include "SurfaceMaterial.h"
+#include "FloatNode.h"
+
+class MoonRenderer::pimpl {
+  public:
+    pimpl() : definition(NULL, "moon"), material(Color(3.0, 3.0, 3.0)) {
+        // TODO Put material in scenery
+    }
+    CelestialBodyDefinition definition;
+    SurfaceMaterial material;
+};
+
+MoonRenderer::MoonRenderer(CelestialBodyDefinition *moon_node) : impl(new pimpl()) {
+    startWatching(moon_node->getRoot(), moon_node->getPath());
+
+    // FIXME should not be needed because the above watcher should watch the whole node
+    //   and call nodeChanged
+    moon_node->copy(&impl->definition);
+}
+
+MoonRenderer::~MoonRenderer() {
+}
+
+void MoonRenderer::nodeChanged(const DefinitionNode *node, const DefinitionDiff *) {
+    if (auto moon_node = static_cast<const CelestialBodyDefinition *>(node)) {
+        moon_node->copy(&impl->definition);
+    }
+}
+
+bool MoonRenderer::getLightsAt(vector<LightComponent> &result, const Vector3 &location) const {
+    LightComponent light;
+
+    // TODO Don't add if its contribution is negligible
+    // TODO Take moon phase into account
+
+    light.color = Color(0.03, 0.03, 0.03);
+    light.direction = location.sub(impl->definition.getLocation()).normalize();
+    light.reflection = 0.2;
+    light.altered = true;
+
+    result.push_back(light);
+    return true;
+}
+
+Color MoonRenderer::getColor(const Vector3 &eye, const Vector3 &direction, LightingManager *lighting) const {
+    auto moon_location = impl->definition.getLocation();
+    auto moon_direction = moon_location.sub(eye).normalize();
+    if (moon_direction.dotProduct(direction) >= 0) {
+        // TODO Alter radius near horizon (lens effect)
+        double moon_radius = impl->definition.propRadius()->getValue();
+        Vector3 hit1, hit2;
+        int hits = Geometry::rayIntersectSphere(eye, direction, moon_location, moon_radius, &hit1, &hit2);
+        if (hits > 1) {
+            // distance between intersection points (relative to radius)
+            double dist = hit2.sub(hit1).getNorm() / moon_radius;
+            auto nearest = (hit1.sub(eye).getNorm() > hit2.sub(eye).getNorm()) ? hit2 : hit1;
+
+            auto moon_color = lighting->apply(eye, nearest, nearest.sub(moon_location).normalize(), impl->material);
+            if (dist <= 0.05) {
+                moon_color.a *= 1.0 - dist / 0.05;
+            }
+            return moon_color;
+        }
+    }
+    return COLOR_TRANSPARENT;
+}

src/render/software/MoonRenderer.h

@@ -0,0 +1,40 @@
+#ifndef MOONRENDERER_H
+#define MOONRENDERER_H
+
+#include "software_global.h"
+
+#include "DefinitionWatcher.h"
+#include "LightSource.h"
+
+#include <memory>
+
+namespace paysages {
+namespace software {
+
+/**
+ * Moon renderer.
+ */
+class SOFTWARESHARED_EXPORT MoonRenderer : public DefinitionWatcher, public LightSource {
+  public:
+    MoonRenderer(CelestialBodyDefinition *moon_node);
+    virtual ~MoonRenderer();
+
+    virtual void nodeChanged(const DefinitionNode *node, const DefinitionDiff *diff) override;
+    virtual bool getLightsAt(vector<LightComponent> &result, const Vector3 &location) const override;
+
+    /**
+     * Get the final moon color, given a looking ray.
+     *
+     * The result will be lighted with *lighting*.
+     */
+    Color getColor(const Vector3 &eye, const Vector3 &direction, LightingManager *lighting) const;
+
+  private:
+    class pimpl;
+    unique_ptr<pimpl> impl;
+
+};
+}
+}
+
+#endif // MOONRENDERER_H

src/render/software/NightSky.cpp

@@ -51,44 +51,11 @@ const Color NightSky::getColor(double altitude, const Vector3 &direction) {
         }
     }
 
-    // Get moon
-    Vector3 moon_position = atmosphere->childMoon()->getLocation();
-    Vector3 moon_direction = moon_position.sub(renderer->getCameraLocation()).normalize();
-    if (moon_direction.dotProduct(direction) >= 0) {
-        double moon_radius = atmosphere->childMoon()->propRadius()->getValue();
-        Vector3 hit1, hit2;
-        int hits = Geometry::rayIntersectSphere(location, direction, moon_position, moon_radius, &hit1, &hit2);
-        if (hits > 1) {
-            double dist =
-                hit2.sub(hit1).getNorm() / moon_radius; // distance between intersection points (relative to radius)
-
-            Vector3 nearest = (hit1.sub(location).getNorm() > hit2.sub(location).getNorm()) ? hit2 : hit1;
-            SurfaceMaterial moon_material(Color(3.0, 3.0, 3.0));
-            moon_material.validate();
-
-            Color moon_color =
-                renderer->applyLightingToSurface(nearest, nearest.sub(moon_position).normalize(), moon_material);
-            if (dist <= 0.05) {
-                moon_color.a *= 1.0 - dist / 0.05;
-            }
-            result.mask(moon_color);
-        }
-    }
-
     return result;
 }
 
-bool NightSky::getLightsAt(vector<LightComponent> &result, const Vector3 &loc) const {
-    LightComponent moon, sky;
-
-    AtmosphereDefinition *atmosphere = renderer->getScenery()->getAtmosphere();
-
-    moon.color = Color(0.03, 0.03, 0.03); // TODO take moon phase into account
-    moon.direction = loc.sub(atmosphere->childMoon()->getLocation()).normalize();
-    moon.reflection = 0.2;
-    moon.altered = 1;
-
-    result.push_back(moon);
+bool NightSky::getLightsAt(vector<LightComponent> &result, const Vector3 &) const {
+    LightComponent sky;
 
     sky.color = Color(0.01, 0.012, 0.03);
     sky.direction = VECTOR_DOWN;

src/render/software/SoftwareRenderer.cpp

@@ -16,6 +16,7 @@
 #include "TerrainRasterizer.h"
 #include "WaterRasterizer.h"
 #include "NightSky.h"
+#include "MoonRenderer.h"
 #include "LightStatus.h"
 #include "LightingManager.h"
 #include "GodRaysSampler.h"
@@ -37,6 +38,7 @@ SoftwareRenderer::SoftwareRenderer(Scenery *scenery) : scenery(scenery) {
     water_renderer = new WaterRenderer(this);
 
     nightsky_renderer = new NightSky(this);
+    moon_renderer = new MoonRenderer(scenery->getAtmosphere()->childMoon());
 
     fluid_medium = new FluidMediumManager(this);
     lighting = new LightingManager();
@@ -47,6 +49,7 @@ SoftwareRenderer::SoftwareRenderer(Scenery *scenery) : scenery(scenery) {
     lighting->registerFilter(vegetation_renderer);
     lighting->registerFilter(clouds_renderer);
     lighting->registerSource(atmosphere_renderer);
+    lighting->registerSource(moon_renderer);
 
     setQuality(0.5);
 }
@@ -59,6 +62,7 @@ SoftwareRenderer::~SoftwareRenderer() {
     delete godrays;
 
     delete nightsky_renderer;
+    delete moon_renderer;
 
     delete atmosphere_renderer;
     delete clouds_renderer;

src/render/software/SoftwareRenderer.h

@@ -68,6 +68,9 @@ class SOFTWARESHARED_EXPORT SoftwareRenderer {
     inline NightSky *getNightSky() const {
         return nightsky_renderer;
     }
+    inline const MoonRenderer &getMoonRenderer() const {
+        return *moon_renderer;
+    }
 
     inline FluidMediumManager *getFluidMediumManager() const {
         return fluid_medium;
@@ -98,6 +101,7 @@ class SOFTWARESHARED_EXPORT SoftwareRenderer {
     TexturesRenderer *textures_renderer;
     WaterRenderer *water_renderer;
     NightSky *nightsky_renderer;
+    MoonRenderer *moon_renderer;
     VegetationRenderer *vegetation_renderer;
 };
 }

src/render/software/software_global.h

@@ -49,6 +49,7 @@ class RayCastingManager;
 class RayCastingResult;
 
 class NightSky;
+class MoonRenderer;
 
 class TerrainRayWalker;