pipeline2 attempt 4

Author: malytomas

sources/libengine/graphics/renderPipeline.cpp

@@ -114,6 +114,7 @@ namespace cage
 		{
 			// opaque first, translucent last; translucent is ordered back-to-front, opaque is ordered front-to-back
 			// reduce switching shaders, then depth test/writes and other states, then meshes
+
 			bool translucent = false; // transparent or fade
 			sint32 renderLayer = 0;
 			Real depth1;
@@ -122,6 +123,8 @@ namespace cage
 			void *pointer = nullptr; // mesh or font
 			bool skeletal = false;
 			Real depth2;
+
+			auto operator<=>(const OrderData &) const = default;
 		};
 #pragma pack(pop)
 		static_assert(sizeof(OrderData) == 22 + sizeof(void *));
@@ -826,7 +829,7 @@ namespace cage
 					return;
 				RenderData rd;
 				rd.model = modelTransform(e) * Mat4(Vec3(rt.layout.size * Vec2(-0.5, 0.5), 0));
-				rd.color = Vec4(colorGammaToLinear(tc.color) * tc.intensity, 1); // todo opacitY
+				rd.color = Vec4(colorGammaToLinear(tc.color) * tc.intensity, 1); // todo opacity
 				rd.orderData.translucent = true;
 				rd.orderData.renderLayer = tc.renderLayer;
 				rd.orderData.pointer = +rt.font;
@@ -901,7 +904,7 @@ namespace cage
 				{
 					ProfilingScope profiling("sort");
 					static_assert(std::is_trivially_copyable_v<OrderData>);
-					std::sort(renderData.begin(), renderData.end(), [](const RenderData &a, const RenderData &b) -> bool { return detail::memcmp(&a.orderData, &b.orderData, sizeof(a.orderData)) < 0; });
+					std::sort(renderData.begin(), renderData.end(), [](const RenderData &a, const RenderData &b) -> bool { return a.orderData < b.orderData; });
 				}
 			}