Script For Custom Zoom?

saiyanelite · December 21, 2023, 5:54pm

Hello everyone. I am trying to locate a script where I can change the zoom levels in increments of 50 and 100%. The level of zoom I need is somewhere between 1000 and 1200 for the project I am working on. Is there a script created for this? I haven’t been able to find it. Thanks!

Ethan_Buttazzi · December 21, 2023, 8:44pm

the program has fixed zooms because in between pixelart would look janky and wrong, it would just fuck up the scale.

behreandtjeremy · December 23, 2023, 9:22am

This is where the zoom levels are hardcoded in the source code. In the off-chance that anyone with this question builds Aseprite from the source code, the scales array can be customized.

github.com

aseprite/aseprite/blob/main/src/render/zoom.cpp#L19


      
          #include "config.h"
          #endif
          
          #include "base/debug.h"
          #include "render/zoom.h"
          
          #include <algorithm>
          
          namespace render {
          
          static int scales[][2] = {
            { 1, 64 },
            { 1, 48 },
            { 1, 32 },
            { 1, 24 },
            { 1, 16 },
            { 1, 12 },
            { 1, 8 },
            { 1, 6 },
            { 1, 5 },
            { 1, 4 },

For 1000-1200%, the numbers would look like

  { 10,  1 }, // 1000
  { 21,  2 }, // 1050
  { 11,  1 }, // 1100
  { 23,  2 }, // 1150
  { 12,  1 }, // 1200

Each zoom is the ratio expressed in integers. It’s probably a good idea to think through both zoom in and out before you make changes. For example, { 1, 12 } is 8.333%, { 2, 23 } is 8.696%.

Source for test image is from Magus’s Castle, Chrono Trigger. UI and screen scaling are 100%.

The artefacts you see depend on whether you’ve zoomed in or out. Also on what your downsampling is set to under Edit > Preferences > Editor or under the zoom tool context bar (Nearest, Bilinear, Mipmapping, Trilinear). I’ve seen visual artefacts where pixels shift slightly between preview and committed change. I generally don’t mind them, but it’s a matter of opinion. I also use my own increments, not 50%.