Shadow mapping render pass (#11244)

Co-authored-by: x2048 <codeforsmile@gmail.com>

2 files changed, 24 insertions, 2 deletions

diff --git a/src/client/render/core.cpp b/src/client/render/core.cpp
index 3c4583623..4a820f583 100644
--- a/src/client/render/core.cpp
+++ b/src/client/render/core.cpp
@@ -24,25 +24,35 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/clientmap.h"
 #include "client/hud.h"
 #include "client/minimap.h"
+#include "client/shadows/dynamicshadowsrender.h"
 
 RenderingCore::RenderingCore(IrrlichtDevice *_device, Client *_client, Hud *_hud)
 	: device(_device), driver(device->getVideoDriver()), smgr(device->getSceneManager()),
 	guienv(device->getGUIEnvironment()), client(_client), camera(client->getCamera()),
-	mapper(client->getMinimap()), hud(_hud)
+	mapper(client->getMinimap()), hud(_hud),
+	shadow_renderer(nullptr)
 {
 	screensize = driver->getScreenSize();
 	virtual_size = screensize;
+
+	if (g_settings->getBool("enable_shaders") &&
+			g_settings->getBool("enable_dynamic_shadows")) {
+		shadow_renderer = new ShadowRenderer(device, client);
+	}
 }
 
 RenderingCore::~RenderingCore()
 {
 	clearTextures();
+	delete shadow_renderer;
 }
 
 void RenderingCore::initialize()
 {
 	// have to be called late as the VMT is not ready in the constructor:
 	initTextures();
+	if (shadow_renderer)
+		shadow_renderer->initialize();
 }
 
 void RenderingCore::updateScreenSize()
@@ -72,7 +82,14 @@ void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_min
 
 void RenderingCore::draw3D()
 {
-	smgr->drawAll();
+	if (shadow_renderer) {
+		// Shadow renderer will handle the draw stage
+		shadow_renderer->setClearColor(skycolor);
+		shadow_renderer->update();
+	} else {
+		smgr->drawAll();
+	}
+
 	driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 	if (!show_hud)
 		return;
diff --git a/src/client/render/core.h b/src/client/render/core.h
index 52ea8f99f..cabfbbfad 100644
--- a/src/client/render/core.h
+++ b/src/client/render/core.h
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #pragma once
 #include "irrlichttypes_extrabloated.h"
 
+class ShadowRenderer;
 class Camera;
 class Client;
 class Hud;
@@ -47,6 +48,8 @@ protected:
 	Minimap *mapper;
 	Hud *hud;
 
+	ShadowRenderer *shadow_renderer;
+
 	void updateScreenSize();
 	virtual void initTextures() {}
 	virtual void clearTextures() {}
@@ -72,4 +75,6 @@ public:
 			bool _draw_wield_tool, bool _draw_crosshair);
 
 	inline v2u32 getVirtualSize() const { return virtual_size; }
+
+	ShadowRenderer *get_shadow_renderer() { return shadow_renderer; };
 };