Shaders rework.

8 files changed, 131 insertions, 43 deletions

diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index df7570b33..68350bec0 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -126,6 +126,15 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("trilinear_filter", "false");
 	settings->setDefault("preload_item_visuals", "true");
 	settings->setDefault("enable_bumpmapping", "false");
+	settings->setDefault("enable_parallax_occlusion", "false");
+	settings->setDefault("parallax_occlusion_scale", "0.08");
+	settings->setDefault("parallax_occlusion_bias", "0.04");
+	settings->setDefault("enable_waving_water", "false");
+	settings->setDefault("water_wave_height", "1.0");
+	settings->setDefault("water_wave_length", "20.0");
+	settings->setDefault("water_wave_speed", "5.0");
+	settings->setDefault("enable_waving_leaves", "false");
+	settings->setDefault("enable_waving_plants", "false");
 	settings->setDefault("enable_shaders", "true");
 	settings->setDefault("repeat_rightclick_time", "0.25");
 	settings->setDefault("enable_particles", "true");
diff --git a/src/game.cpp b/src/game.cpp
index 71a578a65..22abe4c74 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -805,13 +805,64 @@ public:
 		float daynight_ratio_f = (float)daynight_ratio / 1000.0;
 		services->setPixelShaderConstant("dayNightRatio", &daynight_ratio_f, 1);
 		
+		u32 animation_timer = porting::getTimeMs() % 100000;
+		float animation_timer_f = (float)animation_timer / 100000.0;
+		services->setPixelShaderConstant("animationTimer", &animation_timer_f, 1);
+		services->setVertexShaderConstant("animationTimer", &animation_timer_f, 1);
+
+		LocalPlayer* player = m_client->getEnv().getLocalPlayer();
+		v3f eye_position = player->getEyePosition(); 
+		services->setPixelShaderConstant("eyePosition", (irr::f32*)&eye_position, 3);
+		services->setVertexShaderConstant("eyePosition", (irr::f32*)&eye_position, 3);
+
+		float enable_bumpmapping = 0;
+		if (g_settings->getBool("enable_bumpmapping"))
+			enable_bumpmapping = 1;
+		services->setPixelShaderConstant("enableBumpmapping", &enable_bumpmapping, 1);
+
+		float enable_parallax_occlusion = 0;
+		if  (g_settings->getBool("enable_parallax_occlusion"));{
+			enable_parallax_occlusion = 1;
+			float parallax_occlusion_scale = g_settings->getFloat("parallax_occlusion_scale");
+			services->setPixelShaderConstant("parallaxOcclusionScale", &parallax_occlusion_scale, 1);
+			float parallax_occlusion_bias = g_settings->getFloat("parallax_occlusion_bias");
+			services->setPixelShaderConstant("parallaxOcclusionBias", &parallax_occlusion_bias, 1);
+		}
+		services->setPixelShaderConstant("enableParallaxOcclusion", &enable_parallax_occlusion, 1);
+
+		float enable_waving_water = 0;
+		if (g_settings->getBool("enable_waving_water")){
+			enable_waving_water = 1;
+			float water_wave_height_f = g_settings->getFloat("water_wave_height");
+			services->setVertexShaderConstant("waterWaveHeight", &water_wave_height_f, 1);
+			float water_wave_length_f = g_settings->getFloat("water_wave_length");
+			services->setVertexShaderConstant("waterWaveLength", &water_wave_length_f, 1);
+			float water_wave_speed_f = g_settings->getFloat("water_wave_speed");
+			services->setVertexShaderConstant("waterWaveSpeed", &water_wave_speed_f, 1);
+		}
+		services->setVertexShaderConstant("enableWavingWater", &enable_waving_water, 1);
+
+		float enable_waving_leaves = 0;
+		if (g_settings->getBool("enable_waving_leaves"))
+			enable_waving_leaves = 1;
+		services->setVertexShaderConstant("enableWavingLeaves", &enable_waving_leaves, 1);
+
+		float enable_waving_plants = 0;
+		if (g_settings->getBool("enable_waving_plants"))
+			enable_waving_plants = 1;
+		services->setVertexShaderConstant("enableWavingPlants", &enable_waving_plants, 1);
+
+
 		// Normal map texture layer
-		int layer = 1;
+		int layer1 = 1;
+		int layer2 = 2;
 		// before 1.8 there isn't a "integer interface", only float
 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
-		services->setPixelShaderConstant("normalTexture" , (irr::f32*)&layer, 1);
+		services->setPixelShaderConstant("normalTexture" , (irr::f32*)&layer1, 1);
+		services->setPixelShaderConstant("useNormalmap" , (irr::f32*)&layer2, 1);
 #else
-		services->setPixelShaderConstant("normalTexture" , (irr::s32*)&layer, 1);
+		services->setPixelShaderConstant("normalTexture" , (irr::s32*)&layer1, 1);
+		services->setPixelShaderConstant("useNormalmap" , (irr::s32*)&layer2, 1);
 #endif
 	}
 };
diff --git a/src/itemdef.cpp b/src/itemdef.cpp
index d34d68582..f77a198b5 100644
--- a/src/itemdef.cpp
+++ b/src/itemdef.cpp
@@ -390,16 +390,18 @@ public:
 			/*
 				Make a mesh from the node
 			*/
+			bool reenable_shaders = false;
+			if(g_settings->getBool("enable_shaders")){
+				reenable_shaders = true;
+				g_settings->setBool("enable_shaders",false);
+			}
 			MeshMakeData mesh_make_data(gamedef);
 			MapNode mesh_make_node(id, param1, 0);
 			mesh_make_data.fillSingleNode(&mesh_make_node);
 			MapBlockMesh mapblock_mesh(&mesh_make_data);
-
 			scene::IMesh *node_mesh = mapblock_mesh.getMesh();
 			assert(node_mesh);
 			video::SColor c(255, 255, 255, 255);
-			if(g_settings->getBool("enable_shaders"))
-				c = MapBlock_LightColor(255, 0xffff, decode_light(f.light_source));
 			setMeshColor(node_mesh, c);
 
 			/*
@@ -455,6 +457,9 @@ public:
 
 			//no way reference count can be smaller than 2 in this place!
 			assert(cc->wield_mesh->getReferenceCount() >= 2);
+
+			if (reenable_shaders)
+				g_settings->setBool("enable_shaders",true);
 		}
 
 		// Put in cache
diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
index 253703ddc..81aac72d7 100644
--- a/src/mapblock_mesh.cpp
+++ b/src/mapblock_mesh.cpp
@@ -1112,18 +1112,18 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data):
 	bool enable_shaders     = g_settings->getBool("enable_shaders");
 	bool enable_bumpmapping = g_settings->getBool("enable_bumpmapping");
 
-	video::E_MATERIAL_TYPE  shadermat1, shadermat2, shadermat3, bumpmaps1, bumpmaps2;
-	shadermat1 = shadermat2 = shadermat3 = bumpmaps1 = bumpmaps2 = video::EMT_SOLID;
+	video::E_MATERIAL_TYPE  shadermat1, shadermat2, shadermat3,
+							shadermat4, shadermat5;
+	shadermat1 = shadermat2 = shadermat3 = shadermat4 = shadermat5 = 
+		video::EMT_SOLID;
 
 	if (enable_shaders) {
 		IShaderSource *shdrsrc = m_gamedef->getShaderSource();
-		shadermat1 = shdrsrc->getShader("test_shader_1").material;
-		shadermat2 = shdrsrc->getShader("test_shader_2").material;
-		shadermat3 = shdrsrc->getShader("test_shader_3").material;
-		if (enable_bumpmapping) {
-			bumpmaps1 = shdrsrc->getShader("bumpmaps_solids").material;
-			bumpmaps2 = shdrsrc->getShader("bumpmaps_liquids").material;
-		}
+		shadermat1 = shdrsrc->getShader("solids_shader").material;
+		shadermat2 = shdrsrc->getShader("liquids_shader").material;
+		shadermat3 = shdrsrc->getShader("alpha_shader").material;
+		shadermat4 = shdrsrc->getShader("leaves_shader").material;
+		shadermat5 = shdrsrc->getShader("plants_shader").material;
 	}
 
 	for(u32 i = 0; i < collector.prebuffers.size(); i++)
@@ -1204,22 +1204,18 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data):
 		material.setFlag(video::EMF_FOG_ENABLE, true);
 		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_OFF);
 		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_SIMPLE);
-		material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+		//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 		material.setTexture(0, p.tile.texture);
-	
+
 		if (enable_shaders) {
-			video::E_MATERIAL_TYPE smat1 = shadermat1;
-			video::E_MATERIAL_TYPE smat2 = shadermat2;
-			video::E_MATERIAL_TYPE smat3 = shadermat3;
-			
+			ITextureSource *tsrc = data->m_gamedef->tsrc();
+			material.setTexture(2, tsrc->getTexture("disable_img.png"));
 			if (enable_bumpmapping) {
-				ITextureSource *tsrc = data->m_gamedef->tsrc();
 				std::string fname_base = tsrc->getTextureName(p.tile.texture_id);
-
 				std::string normal_ext = "_normal.png";
 				size_t pos = fname_base.find(".");
 				std::string fname_normal = fname_base.substr(0, pos) + normal_ext;
-				
+
 				if (tsrc->isKnownSourceImage(fname_normal)) {
 					// look for image extension and replace it 
 					size_t i = 0;
@@ -1227,19 +1223,15 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data):
 						fname_base.replace(i, 4, normal_ext);
 						i += normal_ext.length();
 					}
-					
 					material.setTexture(1, tsrc->getTexture(fname_base));
-					
-					smat1 = bumpmaps1;
-					smat2 = bumpmaps2;
+					material.setTexture(2, tsrc->getTexture("enable_img.png"));
 				}
 			}
-			
-			p.tile.applyMaterialOptionsWithShaders(material, smat1, smat2, smat3);
+			p.tile.applyMaterialOptionsWithShaders(material,
+				shadermat1, shadermat2, shadermat3, shadermat4, shadermat5);
 		} else {
 			p.tile.applyMaterialOptions(material);
 		}
-
 		// Create meshbuffer
 
 		// This is a "Standard MeshBuffer",
@@ -1369,18 +1361,21 @@ bool MapBlockMesh::animate(bool faraway, float time, int crack, u32 daynight_rat
 		os<<"^[verticalframe:"<<(int)tile.animation_frame_count<<":"<<frame;
 		// Set the texture
 		buf->getMaterial().setTexture(0, tsrc->getTexture(os.str()));
+		buf->getMaterial().setTexture(2, tsrc->getTexture("disable_img.png"));
 		if (enable_shaders && enable_bumpmapping)
 			{
-				std::string basename,normal;
-				basename = tsrc->getTextureName(tile.texture_id);
+				std::string fname_base,fname_normal;
+				fname_base = tsrc->getTextureName(tile.texture_id);
 				unsigned pos;
-				pos = basename.find(".");
-				normal = basename.substr (0, pos);
-				normal += "_normal.png";
-				os.str("");
-				os<<normal<<"^[verticalframe:"<<(int)tile.animation_frame_count<<":"<<frame;
-				if (tsrc->isKnownSourceImage(normal))
+				pos = fname_base.find(".");
+				fname_normal = fname_base.substr (0, pos);
+				fname_normal += "_normal.png";
+				if (tsrc->isKnownSourceImage(fname_normal)){
+					os.str("");
+					os<<fname_normal<<"^[verticalframe:"<<(int)tile.animation_frame_count<<":"<<frame;
 					buf->getMaterial().setTexture(1, tsrc->getTexture(os.str()));
+					buf->getMaterial().setTexture(2, tsrc->getTexture("enable_img.png"));
+				}
 			}
 	}
 
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index d13d0653d..2b6de0461 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -225,6 +225,7 @@ void ContentFeatures::reset()
 	damage_per_second = 0;
 	node_box = NodeBox();
 	selection_box = NodeBox();
+	waving = 0;
 	legacy_facedir_simple = false;
 	legacy_wallmounted = false;
 	sound_footstep = SimpleSoundSpec();
@@ -292,6 +293,7 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 	writeU8(os, liquid_range);
 	// Stuff below should be moved to correct place in a version that otherwise changes
 	// the protocol version
+	writeU8(os, waving);
 }
 
 void ContentFeatures::deSerialize(std::istream &is)
@@ -359,6 +361,7 @@ void ContentFeatures::deSerialize(std::istream &is)
 	try{
 		// Stuff below should be moved to correct place in a version that
 		// otherwise changes the protocol version
+	waving = readU8(is);
 	}catch(SerializationError &e) {};
 }
 
@@ -618,6 +621,9 @@ public:
 			}
 
 			bool is_liquid = false;
+			u8 material_type;
+			material_type = (f->alpha == 255) ? TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
+
 			switch(f->drawtype){
 			default:
 			case NDT_NORMAL:
@@ -669,10 +675,14 @@ public:
 						tiledef[i].name += std::string("^[noalpha");
 					}
 				}
+				if (f->waving == 1)
+					material_type = TILE_MATERIAL_LEAVES;
 				break;
 			case NDT_PLANTLIKE:
 				f->solidness = 0;
 				f->backface_culling = false;
+				if (f->waving == 1)
+					material_type = TILE_MATERIAL_PLANTS;
 				break;
 			case NDT_TORCHLIKE:
 			case NDT_SIGNLIKE:
@@ -683,11 +693,8 @@ public:
 				break;
 			}
 
-			u8 material_type;
 			if (is_liquid)
 				material_type = (f->alpha == 255) ? TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
-			else
-				material_type = (f->alpha == 255) ? TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 
 			// Tiles (fill in f->tiles[])
 			for(u16 j=0; j<6; j++){
diff --git a/src/nodedef.h b/src/nodedef.h
index c0322d919..d4cd66f80 100644
--- a/src/nodedef.h
+++ b/src/nodedef.h
@@ -234,6 +234,8 @@ struct ContentFeatures
 	u32 damage_per_second;
 	NodeBox node_box;
 	NodeBox selection_box;
+	// Used for waving leaves/plants
+	u8 waving;
 	// Compatibility with old maps
 	// Set to true if paramtype used to be 'facedir_simple'
 	bool legacy_facedir_simple;
diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
index fd98e9480..d58479042 100644
--- a/src/script/common/c_content.cpp
+++ b/src/script/common/c_content.cpp
@@ -428,6 +428,9 @@ ContentFeatures read_content_features(lua_State *L, int index)
 		f.selection_box = read_nodebox(L, -1);
  	lua_pop(L, 1);
 
+	f.waving = getintfield_default(L, index,
+			"waving", f.waving);
+
 	// Set to true if paramtype used to be 'facedir_simple'
 	getboolfield(L, index, "legacy_facedir_simple", f.legacy_facedir_simple);
 	// Set to true if wall_mounted used to be set to true
diff --git a/src/tile.h b/src/tile.h
index 90e180a48..b748c092e 100644
--- a/src/tile.h
+++ b/src/tile.h
@@ -136,6 +136,8 @@ enum MaterialType{
 	TILE_MATERIAL_ALPHA,
 	TILE_MATERIAL_LIQUID_TRANSPARENT,
 	TILE_MATERIAL_LIQUID_OPAQUE,
+	TILE_MATERIAL_LEAVES,
+	TILE_MATERIAL_PLANTS
 };
 
 // Material flags
@@ -204,13 +206,21 @@ struct TileSpec
 		case TILE_MATERIAL_LIQUID_OPAQUE:
 			material.MaterialType = video::EMT_SOLID;
 			break;
+		case TILE_MATERIAL_LEAVES:
+			material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+			break;
+		case TILE_MATERIAL_PLANTS:
+			material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+		break;
 		}
 		material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) ? true : false;
 	}
 	void applyMaterialOptionsWithShaders(video::SMaterial &material,
 			const video::E_MATERIAL_TYPE &basic,
 			const video::E_MATERIAL_TYPE &liquid,
-			const video::E_MATERIAL_TYPE &alpha) const
+			const video::E_MATERIAL_TYPE &alpha,
+			const video::E_MATERIAL_TYPE &leaves,
+			const video::E_MATERIAL_TYPE &plants) const
 	{
 		switch(material_type){
 		case TILE_MATERIAL_BASIC:
@@ -225,6 +235,12 @@ struct TileSpec
 		case TILE_MATERIAL_LIQUID_OPAQUE:
 			material.MaterialType = liquid;
 			break;
+		case TILE_MATERIAL_LEAVES:
+			material.MaterialType = leaves;
+			break;
+		case TILE_MATERIAL_PLANTS:
+			material.MaterialType = plants;
+			break;
 		}
 		material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) ? true : false;
 	}