Stuff for volumetric clouds

src/client/client.h

@@ -37,6 +37,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "gameparams.h"
 #include "clientdynamicinfo.h"
 #include "util/numeric.h"
+#include "clouds.h"
 
 #ifdef SERVER
 #error Do not include in server builds
@@ -373,6 +374,9 @@ public:
 	Camera* getCamera () { return m_camera; }
 	scene::ISceneManager *getSceneManager();
 
+	Clouds* getClouds() { return m_clouds; }
+	void setClouds(Clouds* clouds) { m_clouds = clouds; }
+
 	// IGameDef interface
 	IItemDefManager* getItemDefManager() override;
 	const NodeDefManager* getNodeDefManager() override;
@@ -498,6 +502,7 @@ private:
 	ELoginRegister m_allow_login_or_register = ELoginRegister::Any;
 	Camera *m_camera = nullptr;
 	Minimap *m_minimap = nullptr;
+	Clouds *m_clouds = nullptr;
 
 	// Server serialization version
 	u8 m_server_ser_ver;

src/client/clouds.cpp

@@ -396,6 +396,13 @@ void Clouds::render()
 			fog_pixelfog, fog_rangefog);
 }
 
+void Clouds::renderVolumetrics() {
+	video::IVideoDriver* driver = SceneManager->getVideoDriver();
+	v2u32 ss = driver->getScreenSize();
+	core::rect<s32> rect(0, 0, ss.X, ss.Y);
+	driver->draw2DRectangle(video::SColor(255, 255, 255, 255), rect);
+}
+
 void Clouds::step(float dtime)
 {
 	m_origin = m_origin + dtime * BS * m_params.speed;

src/client/clouds.h

@@ -52,6 +52,8 @@ public:
 
 	virtual void render();
 
+	void renderVolumetrics();
+
 	virtual const aabb3f &getBoundingBox() const
 	{
 		return m_box;
@@ -145,6 +147,8 @@ private:
 
 	bool gridFilled(int x, int y) const;
 
+	video::SMaterial m_volume_material;
+
 	video::SMaterial m_material;
 	irr_ptr<scene::SMeshBuffer> m_meshbuffer;
 	// Value of m_origin at the time the mesh was last updated

src/client/game.cpp

@@ -1516,6 +1516,7 @@ bool Game::createClient(const GameStartData &start_data)
 	 */
 	if (m_cache_enable_clouds)
 		clouds = new Clouds(smgr, shader_src, -1, rand());
+	client->setClouds(clouds);
 
 	/* Skybox
 	 */

src/client/render/plain.cpp

@@ -66,6 +66,11 @@ void DrawHUD::run(PipelineContext &context)
 		context.client->getCamera()->drawNametags();
 	}
 	context.device->getGUIEnvironment()->drawAll();
+
+	// TODO: proper settings
+	if (true && context.client->getClouds()) {
+		context.client->getClouds()->renderVolumetrics();
+	}
 }