With Lumen, you no longer have to author lightmap UVs, wait for lightmaps to bake, or place reflection captures you can simply create and edit lights inside the Unreal Editor and see the same final lighting your players will see when the game or experience is run on the target platform. At one point, we see Epic move an element of the jungle environment (a large cliff) around, and as they do, UE5 automatically fills in the area where the object once was.First off, there’s Lumen-a fully dynamic global illumination solution that enables you to create believable scenes where indirect lighting adapts on the fly to changes to direct lighting or geometry-for example, changing the sun’s angle with the time of day, turning on a flashlight, or opening an exterior door. Presumably, you could opt to have truck be made of pretty much anything.įor developers, perhaps the most exciting new Unreal Engine 5.2 feature are its new procedural content creation tools. In the demo, Epic instantly swaps the car’s paint job for a reflective “opal” coat. Basically, devs will be able to quickly and easily swap out what an object is made of. Valve also shows off their new “Substrate” material framework. Everything from the vines, to the rocks and water the truck drives over react appropriately, thanks to Valve’s Chaos physics engine. We see a vehicle (a Rivian R1T electric pickup truck) make its way through a near-photorealistic jungle environment. Past Unreal Engine 5 demos Valve has offered have largely taken place in rocky, barren landscapes, so it’s pretty clear they made a pointed decision to focus on a lush, living environment this time around.
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