Scaling in image editing programs means more or less a reduction of the image quality. Is this comparable to the scale function in a 3d program?
Scaling a 3D model should not make any difference. Do you mean the quality of the texture applied to the model?
If so, it depends on the size of the render as to what size of image is used, so you should not see any loss of quality. What are you thinking of doing, and matbe we can help further?
If you're thinking that you can do larger scenes if you shrink down the character models, you'd be sadly mistaken. Scaling a figure doesn't change the amount of detail on that figure, it just makes that detail smaller and more compact. It still has the same number of vertices and polygons, and still uses the same high-resolution textures even if that detail isn't being used as much.
If you are planning to make busy scenes, you can somewhat get around this by faking your own mipmaps and intentionally using resized lower resolution textures on distant characters, which will help reduce the overhead a little. You can also disable any subdivision on the figures, as that extra detail won't be needed as much if they're farther from the camera.
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Not typically
Scaling a 3D model should not make any difference. Do you mean the quality of the texture applied to the model?
If so, it depends on the size of the render as to what size of image is used, so you should not see any loss of quality. What are you thinking of doing, and matbe we can help further?
If you're thinking that you can do larger scenes if you shrink down the character models, you'd be sadly mistaken. Scaling a figure doesn't change the amount of detail on that figure, it just makes that detail smaller and more compact. It still has the same number of vertices and polygons, and still uses the same high-resolution textures even if that detail isn't being used as much.
If you are planning to make busy scenes, you can somewhat get around this by faking your own mipmaps and intentionally using resized lower resolution textures on distant characters, which will help reduce the overhead a little. You can also disable any subdivision on the figures, as that extra detail won't be needed as much if they're farther from the camera.