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April 17, 2019
Question

Perspective match tool

  • April 17, 2019
  • 1 reply
  • 804 views

Hi! Could you add a perspective matching tool in order any user could manually specify Dimension CC a group of parallel lines to match the image perspective perfectly? The automatic tool which presents in Dimension CC for now is just useless because it can't compute the real perspective of image even approximately. Look as an example a perspective matching tool in SketchUP, 3ds Max or others. It's a pity thing that Adobe can't provide users to use such a tool in 2019. Even Photoshop Vanishing Point Filter works wrong. When you set parallel lines and try to back a 3D layer the FOV values becomes incorrect. Moreover Photoshop simply has wrong calculations of the horizontal field of view. You may check it. Look at the screenshot. The simple formula proves that PS says wrong Horizontal FOV

canvas width w = 5000 pixels

canvas height h = 2000 pixels

d = 3732,73 (distance to the center of projection)

Horizontal FOV    2 tan-1 ( w / 2d ) = 67.6

Vertical FOV    2 tan-1 ( h / 2d ) = 30

But somehow PS shows 75. So if you try to put FOV like 75 in Dimension CC with the same canvas size the perspective of this cube from canvas will not match, because you will have to put the value of FOV in Dimension like in formula above, i.e. 67.6 and perspective will match with this cube. And don't forget that we can't input a vertical FOV in Dimension it operates only with horizontal. So let it be an example (don't ask for what reason), but somebody created a cube in 3d photoshop and he knows the camera parametres and now he want to create the same scene in Dimension with the same camera. So he simply can't do it while he will not compute the real horizontal FOV from vertical manually because of Photoshop horizontal FOV bug and Dimension who works only with horizontal FOV. Hope you understood.

Please don't delete this post saying I have to write it on PS forum. I did it before and still no any answer. I just try to say that Adobe forces users who want to get a high accuracy in such cases to lose much time for a manual work instead of Adobe fix some items in their applications. Because when I want to match a perspective with a help of other applications (not Adobe) it will take some minutes to get the needed results.... Please, do something: add to Dimension CC proper perspective matching tool or fix PS Vanishing Filter. Hope on some reactions of you. Thanks.

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1 reply

Ussnorway7605025
Legend
April 18, 2019

максимм4949461  wrote

Please don't delete this post saying I have to write it on PS forum. I did it before and still no any answer.

this forum is for users and doesn't get much staff traffic. the correct place to give feedback and ask the design team for new options is the feedback portal... no I won't delete your post but you have a much better chance if you put your requests there... at least then the right people will see it