rework label drawable and text drawable's API

examples/ExampleApps/LabelDrawableExampleApp.cpp

@@ -61,11 +61,7 @@ namespace OpenVulkano
 			m_nodesPool.resize(N);
 			m_drawablesPool.reserve(N);
 
-			static TextDrawable textDrawable(sdfMetadataInfo);
-			auto& sh = TextDrawable::GetSdfDefaultShader();
-			sh.depthWrite = false;
-			sh.depthCompareOp = CompareOp::LESS_OR_EQUAL;
-			textDrawable.SetShader(&sh);
+			TextDrawable textDrawable(sdfMetadataInfo);
 			const std::vector<std::string> texts = { "Hello", "1", "XYZ" };
 			BillboardControlBlock billboardSettings;
 			LabelDrawableSettings labelSettings;
@@ -75,14 +71,14 @@ namespace OpenVulkano
 				//labelSettings.hasRoundedCorners = (i % 2 == 0 ? 1 : 0);
 				labelSettings.hasArrow = (i % 2 == 0 ? 1 : 0);
 				bool isBillboard = (i % 2 == 0 ? 1 : 0);
-				LabelDrawable& label = m_drawablesPool.emplace_back(labelSettings, isBillboard);
+				LabelDrawable& label = m_drawablesPool.emplace_back(textDrawable.GetAtlasData(), labelSettings, isBillboard);
 				label.SetBillboardSettings(billboardSettings);
-				label.AddText(&textDrawable, texts[i]);
+				label.AddText(texts[i]);
 				if (i == 2)
 				{
 					for (int j = 0; j < 3; j++)
 					{
-						label.AddText(&textDrawable, "Additional text" + std::to_string(j));
+						label.AddText("Additional text" + std::to_string(j));
 					}
 				}
 				m_scene.GetRoot()->AddChild(&m_nodesPool[i]);

examples/ExampleApps/TextExampleApp.cpp

@@ -74,6 +74,8 @@ namespace OpenVulkano
 			msdf_atlas::Charset charset = SdfFontAtlasGenerator::LoadAllGlyphs(fontPath);
 			m_atlasGenerator.GenerateAtlas(fontPath, charset);
 			m_msdfAtlasGenerator.GenerateAtlas(fontPath, charset);
+			m_atlasGenerator.SaveAtlasMetadataInfo("sdf_atlas.png");
+			m_msdfAtlasGenerator.SaveAtlasMetadataInfo("msdf_atlas");
 #else 
 			auto sdfMetadataInfo = resourceLoader.GetResource("sdf_atlas_packed.png");
 			auto msdfMetadataInfo = resourceLoader.GetResource("msdf_atlas_packed.png");
@@ -86,12 +88,12 @@ namespace OpenVulkano
 #if defined(MSDFGEN_AVAILABLE) && defined(CREATE_NEW_ATLAS)
 				if (i < texts.size()) 
 				{ 
-					t = new TextDrawable(&m_atlasGenerator, texts[textIdx].second); 
+					t = new TextDrawable(m_atlasGenerator.GetAtlasData(), texts[textIdx].second); 
 					t->SetShader(&TextDrawable::GetSdfDefaultShader());
 				}
 				else
 				{ 
-					t = new TextDrawable(&m_msdfAtlasGenerator, texts[textIdx].second); 
+					t = new TextDrawable(m_msdfAtlasGenerator.GetAtlasData(), texts[textIdx].second); 
 					t->SetShader(&TextDrawable::GetMsdfDefaultShader());
 				}
 #else