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Unknown5FB4
Participant
August 10, 2021
Answered

Zoom in issue. Pixel distortion

  • August 10, 2021
  • 1 reply
  • 1914 views

Hello. I'm from Russia and new to Photoshop, I'm sorry for any grammar mistakes. I've been using Paint Tool SAI for awhile and now I'm learning Photoshop. There is an issue I've never seen before and I'm not sure what to do. 

When I zoom in [Starting from around 190%] the image becomes "Fuzzy", " Distorted", and something like "Stairstepped effect" happens; I can't zoom in smoothly like in SAI or Clip Studio Paint, the pixels/lines act a little weird when I'm scaling them. Like they dislocate a little bit and become jagged, the pixels "dance". Scaling in SAI and CSP doesn't do that; Scaling there appears to be more smooth and doesn't distort the lines/pixels unlike Photoshop.  I made some screenshot to show the difference.

The same image, the same DPI, the same scaling percentage, yet you can the that SAI lines are more smooth than PS lines.

Please help me and let me know why this is happening, and if it possible to make Photoshop scaling as smooth as SAI/CSP scaling. To me looks like Photoshop has more "Rough" interpolation. Is this because PS has different pixel dimension? Is it possible to prevent jagged and distorted lines [This overall "Dancing fuzziness"] when I zoom in and out? Thank you.

    This topic has been closed for replies.
    Correct answer JJMack

    Photoshop zooming is done quickly for performance so paint lag will be a small as posible.  It is not done via interpolation for best image quality.  You should only judge your image quality when you are zoomed to 100% where you are actually viewing your images actual pixels.  At any other zoom percentage you are viewing a quickly  scaling of your image. At some zoom percentages image quality can be quite poor.  You are not actually viewing your actual image. Even with this fast scaling if you use a mixer brush with a large tips size and spacing set to 1%  the lag a paint stroke has  makes it painful to use.

     

    Judge your image quality only at 100% zoom where you are viewing you actual Image not a scaling. Photoshop brush support has many options overhead painting can be quite high. If you like the Paint programs use them. I would think that any paint program the support huge canvas sizes will have Lag when you zoom out where a single paint stroke repeatedly has the update millions your images pixels picking up paint mixing paint and laying down paint rendering the paint stroke.  Paint Programs are design for painting where Photoshop is designed for image editing not paintings.

     

    Printed pixels have size and shape.  A Digital Image Canvas has a number of pixels, There is a color space and color bit depth    Large Canvas sizes have a large number of pixels  and requite some number of bits for each pixel . Layer can be smaller  or larger than a images canvas size. Photoshop support up the 8000 layers the canvas pixels are blended layer pixels.  Painting is done on some layers  so at least that layer a the document composite layer is involved during a paint stroke.  If Painting is at some zoom percentages then there is is a scaled composite images being painted on. The stroke needs to be scaled to the actual images size applied to the Layer being painted on and blended into the document composite then quickly scaled for the zoomed image being displayed and rendering the stroke.  There is a lot of work when it come to rendering a paint stroke. Photoshop Brush engine is feature rich has many option Brushes strokes can be quite complex to render. 

    1 reply

    JJMack
    Community Expert
    JJMackCommunity ExpertCorrect answer
    Community Expert
    August 10, 2021

    Photoshop zooming is done quickly for performance so paint lag will be a small as posible.  It is not done via interpolation for best image quality.  You should only judge your image quality when you are zoomed to 100% where you are actually viewing your images actual pixels.  At any other zoom percentage you are viewing a quickly  scaling of your image. At some zoom percentages image quality can be quite poor.  You are not actually viewing your actual image. Even with this fast scaling if you use a mixer brush with a large tips size and spacing set to 1%  the lag a paint stroke has  makes it painful to use.

     

    Judge your image quality only at 100% zoom where you are viewing you actual Image not a scaling. Photoshop brush support has many options overhead painting can be quite high. If you like the Paint programs use them. I would think that any paint program the support huge canvas sizes will have Lag when you zoom out where a single paint stroke repeatedly has the update millions your images pixels picking up paint mixing paint and laying down paint rendering the paint stroke.  Paint Programs are design for painting where Photoshop is designed for image editing not paintings.

     

    Printed pixels have size and shape.  A Digital Image Canvas has a number of pixels, There is a color space and color bit depth    Large Canvas sizes have a large number of pixels  and requite some number of bits for each pixel . Layer can be smaller  or larger than a images canvas size. Photoshop support up the 8000 layers the canvas pixels are blended layer pixels.  Painting is done on some layers  so at least that layer a the document composite layer is involved during a paint stroke.  If Painting is at some zoom percentages then there is is a scaled composite images being painted on. The stroke needs to be scaled to the actual images size applied to the Layer being painted on and blended into the document composite then quickly scaled for the zoomed image being displayed and rendering the stroke.  There is a lot of work when it come to rendering a paint stroke. Photoshop Brush engine is feature rich has many option Brushes strokes can be quite complex to render. 

    JJMack
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