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kirkr5689
Inspiring
September 30, 2021
Question

A crop node without blurring?

  • September 30, 2021
  • 1 reply
  • 461 views

Can we have a crop  node that could crop precisely on pixels  and would't add extra blur to result.    So we could crop  exactly 32x2048 pixel  stripe from a square 2048 image , no-rescaling  the pixels into a new size.      With "safe" shift  in XY  to  exact pixel either

 

I am trying to do one  out of pixel processor or new function    for years.   Still  zero sucsess.  .    Would appriciate  any idea.

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1 reply

Nicolas3D
Community Manager
Nicolas3DCommunity Manager
Community Manager
October 1, 2021

Hi 

Can you please give me more details about this request? If you have a visual sample of what you want to achieve it would really help me to answer your question. Thanks in advance. 

K
kirkr5689Author
Inspiring
October 1, 2021

Basically I want the   crop frame  be set like  256 pixels from zero on X scale to 288  pixels   and same on Y axis  with output side be changing accordingly to 32 pixels wide

 

Right now if I want to crop  exact 32 pixels wide  vertical stripe  for example  from 2048x2048 image I have to first  enter   50%width   6 times and then  set output size to 32 pix width.

If I want to crop 512k stripe  from same 2048   I do 50%width  only 2 times but now  the offset cant move a frame to a single pixel  at all   and I how to move gizmo  nodes  instead.

 

  It's monstrously inconvenient   and since the gizmo can't  snap to a pixel grid  like in Photoshop  or scale around a defined center of transform  like in Photoshop with exact value input,     I always end up with that gizmo frame border  somewhere in a middle of a pixel  that immediatly results in  blurry result.

 

I hate  that crop node so much I do it in Photoshop  usually

 

 

Luca Giarrizzo
Community Manager
Luca GiarrizzoCommunity Manager
Community Manager
October 4, 2021

Hello @kirkr5689,

 

Have you set the Filtering parameter of the Crop node set to Nearest? By default it is set to Bilinear; which will result in a some blurring in the output image.

 

Best regards.

 

Luca Giarrizzo | Quality Engineer - Substance 3D Designer | Adobe
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