rewrite renderPipeline

generates a single list of renders that is quickly sorted

adds render layer to the RenderComponent and TextComponent

Author: malytomas

sources/include/cage-engine/scene.h

@@ -20,6 +20,7 @@ namespace cage
 		Real opacity = Real::Nan();
 		uint32 object = 0;
 		uint32 sceneMask = 1;
+		sint32 layer = 0;
 	};
 
 	union CAGE_ENGINE_API ShaderDataComponent
@@ -74,9 +75,10 @@ namespace cage
 		// real opacity; // todo
 		uint32 textId = 0;
 		uint32 font = 0;
-		uint32 sceneMask = 1;
-		Real lineSpacing = 1;
 		TextAlignEnum align = TextAlignEnum::Center;
+		Real lineSpacing = 1;
+		uint32 sceneMask = 1;
+		sint32 renderLayer = 0;
 	};
 
 	struct CAGE_ENGINE_API CameraCommonProperties

sources/libcore/geometry/geometry.cpp

@@ -488,6 +488,9 @@ namespace cage
 
 	bool intersects(Sphere sphere, const Frustum &frustum)
 	{
+		return intersects(Aabb(sphere), frustum);
+
+		// the following seems broken
 		// https://www.flipcode.com/archives/Frustum_Culling.shtml modified
 		for (int i = 0; i < 6; i++)
 		{