Looking for a point of reference considering unreal units and texture creation.

Community Community & Industry Discussion
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Now i am not completely new to the world of game design but i feel like i have been hit and buried by a avalanche with unreal engine 4. Most of my experience with level design is wit half-life 2 source and the hammer editor by valve so im used to measuring my geometry by 8x8, 16x16, 32x32, 256x256, 1024x1024 and in correlation my textures or materials. Unreals engine however seems to be in powers of 10 (metric system) so im confused. Can some give me some pointers on the player height, a normal step and door size in a house, and do the textures im going to make need to be in powers of ten. im Thanks for any advice you can share with me.

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Textures need to be in a power of two 512x512, 1024x1024, 2048x2048,…
The scale is 1uu = 1 cm (I think the blue character is around 192cm tall) :slight_smile:

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I’d just like to point out that 1uu = 1cm is the default. What matters is the relationship between objects, and mechanics that rely on units like gravity. If you have a character that is supposed to be 2 meters tall and you want a crate to be 1 meters tall you will, after fighters explanation, make the character 200 units and the box 100 units. It’s easy to work with for games that are in some way based in a realistic world.

But if you were to make your character 400 units and your box 200 units you would still get the same result. The default gravity setting would be half of earths until you changed it of course, and some things like camera speed in the editor would be different, but the relationship between the character and the box would be the same. In this case 1uu would equal 0.5cm.

I post this to take the magic away from the relationship between Unreal Units (or Maya//Blender units) and real world measurements like centimeters. The only reason the game engine cares about this relationship is because it comes with a couple of these mechanics that care about units, gravity being the most obvious one. The community in turn cares because of things like Marketplace assets that would be a pain in the butt if everyone used their own relations between the units.