Cylinder

[rita]

Hello,
When I use a map on a cylinder object, the image stretches or expands (even though I didn't scale it). How can I avoid this?

Additionally, I adjusted the layer to match the image size so the entire image would be visible.(Layer-> layer to image size)

[Ofnuts]

(12-13-2024, 12:18 PM)rita Wrote: Hello,
When I use a map on a cylinder object, the image stretches or expands (even though I didn't scale it). How can I avoid this?

Additionally, I adjusted the layer to match the image size so the entire image would be visible.(Layer-> layer to image size)

It all depends what the point of view is. If you are near the cylinder, the distance between your eye and the front (blue) is smaller that the distance between you eye and the sides (red), so things on the sides appear smaller. If you have a rectangle, this translates into a continuous curve.

   

This is the same effect as the "big nose" when you take a picture of someone being too close. The farther away you are less different are the distances, and the more rectangular the shape is, but you have to be pretty far way to not see too much difference(*). For you this means using a high Z value in the plugin.

(*) In thjs example, the bottle was shot from several meters away, using my big telephoto lens..

[rita]

(12-13-2024, 01:46 PM)Ofnuts Wrote:

(12-13-2024, 12:18 PM)rita Wrote: Hello,
When I use a map on a cylinder object, the image stretches or expands (even though I didn't scale it). How can I avoid this?

Additionally, I adjusted the layer to match the image size so the entire image would be visible.(Layer-> layer to image size)

It all depends what the point of view is. If you are near the cylinder, the distance between your eye and the front (blue) is smaller that the distance between you eye and the sides (red), so things on the sides appear smaller. If you have a rectangle, this translates into a continuous curve.



This is the same effect as the "big nose" when you take a picture of someone being too close. The farther away you are less different are the distances, and the more rectangular the shape is, but you have to be pretty far way to not see too much difference(*). For you this means using a high Z value in the plugin.

(*) In thjs example, the bottle was shot from several meters away, using my big telephoto lens..

Okay, what can I do to fix my issue? Should I take the picture from a distance?
And if the image is close what should I do?

[Ofnuts]

(12-13-2024, 01:54 PM)rita Wrote:

(12-13-2024, 01:46 PM)Ofnuts Wrote:

(12-13-2024, 12:18 PM)rita Wrote: Hello,
When I use a map on a cylinder object, the image stretches or expands (even though I didn't scale it). How can I avoid this?

Additionally, I adjusted the layer to match the image size so the entire image would be visible.(Layer-> layer to image size)

It all depends what the point of view is. If you are near the cylinder, the distance between your eye and the front (blue) is smaller that the distance between you eye and the sides (red), so things on the sides appear smaller. If you have a rectangle, this translates into a continuous curve.



This is the same effect as the "big nose" when you take a picture of someone being too close. The farther away you are less different are the distances, and the more rectangular the shape is, but you have to be pretty far way to not see too much difference(*). For you this means using a high Z value in the plugin.

(*) In thjs example, the bottle was shot from several meters away, using my big telephoto lens..

Okay, what can I do to fix my issue? Should I take the picture from a distance?
And if the image is close what should I do?

As I said, the distortion of the rectangle is related to your position on the Z axis. But as I said elsewhere, that filter isn't so easy to work with.