Grass instances and Lightmap issue
Hello Epic Team,
when i try to build a 15x15quad landscape and put grass on it the lightmap calculation freezes my whole machine, nothing works and the harddrive is running like crazy. The same when i use dynamic light. Turned off shadows, lightmap resolution is set to 4....nothins solves the issue. I have grass mesh of about 750 triangles and seed 21k instances in the scene... What shall i do when i want to put a scene like in the Kite Demo???
I use Version 4.8.
Thanks a lot for helping me.
When creating a scene like the Kite Demo, or any densely populated open world scene, there are a lot of things you need to take into account before beginning design. The first thing you want to account for is the hardware you are using, and its limitations. The GDC demo was created by a collection of professional developers on very high end machines. They also used a combination of different lighting techniques and features to have everything work together.
The best answer I can give you is to start small and work towards scaling outwards. This way, once you have optimized the smaller sections, you can work on expanding. The answer to your question of how to make something like the Kite Demo can be found on our Youtube page. We created a two part twitch stream that goes through the creation process of our Kite Demo, and will provide you with much insight on what it actually takes to create an open world scene like this!
A Boy and His Kite Part 1
A Boy and His Kite Part 2
answered Jul 20 '15 at 03:08 PM
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