Perspective

Currently Zdog uses _orthogonal_ perspective, where all projected lines are parallel with no vanishing point. This works nice with stroke volume — as stroke volume is applied to the entire shape uniformly. So, with the same shape, a corner close to the camera will have the same stroke as the corner far from the camera.

That said, adding perspective would be a good feature to add. It's a relatively low-complexity addition that provides a wide range of capability. Vanishing point perspective is an expected feature of any 3D library. Zdog may be special, but it should get it the same.

**Add a 👍 reaction** to this issue if you would like to see this feature added. Do not add +1 comments — [They will be deleted](https://metafizzy.co/blog/use-github-reactions-delete-plus-1-comments/).

No files, tests, or entry points are named. Start by tracing Zdog's current orthogonal projection and establish how vanishing-point perspective and stroke volume should behave; done means the feature is implemented and validated.

Written by the indexing model from the issue text.