I’m lost on scale in blender. I was following along with JW’s female mesh tutorial where he said that the grid is roughly one meter. then I downloaded a free mesh to use as comparison to see if I was close to a correct human scale, they are not even close as far as being the same size (grid comparison) in the 3d viewport. What I was thinking about was say I want to model a car or space ship. I am familiar with the human size comparison from every day life so I have a basic frame of reference on size comparison between the human and the car. So in the default launch of blender what is the grid size? We all use scale references in our modeling so how do you all set a new project up.
By default 1 Blender Unit is 1 meter. But you’d best forget about any real-world measurements while modeling. They may come in useful later, while rendering (light setups), physics, hair, etc, but at modeling stage you’re free to consider 1 BU equal to anything, and so long as your model is consistent with that scale, you’ll be able to easily resize it to accomodate any units you’ll need.
Blender doesn’t necessarily conform to any scale, but for most calculations it treats 1 grid unit as 1 meter by default. That doesn’t mean every model conforms to that scale; you can make your model whatever size you want. And since people often start modeling from a default cube or a plane, some people’s models are huge on that scale. Think about it, the default cube is 2X2 Blender Units. if you subdivide that default cube, apply a mirror modifier, then box model it into a human head, then build a body to go with it, we’re talking about a model that could be something like 16 meters tall on the default scale. If the modeler of your random free mesh didn’t shrink it down, yeah, it’s probably enormous.