Is there an efficient way to create images (height maps) in Blender so that they can be used as alphas in other applications like Substance Painter? If so, what's the proper way to do it? Preferrably without having to uv-unwrap.
What I tried
I tried various settings and came up with this, but it doesn't seem to be right for everything and I hope there's a more efficient way. Here are the changes I did on the default blend file:
* delete lamp * camera object transform reset location / rotation / scale, then set location z to 2 data lens orthographic orthographic scale: 2 * render resolution x: 2048 px y: 2048 px percentage scale: 100% shading alpha mode transparent * render layer solid: true, all else: false (especially sky or else you'd get some grey background) * scene color management display device: none * object set scale to 0.5 for x/y/z material shading shadeless: true texture type: blend colors ramp: true color stop: set alpha from 0 to 1 blend progression: linear or quadratic, depends on the effect you want vertical: true mapping coordinates: generated mapping X: Z Y: Z Z: Z * select object apply -> rotation
And then render the image and save it.
Here are the settings as graphics:
Using a cylinder as object:
And the final alpha / height map: