How find atlas animation geometry-data?

Questions
1

Atlas animations are good way to organize your atlas. But, afaik, if you put your images into animation you can’t access to images geometry data (uvs, vertices, indices, width, height…)

image
image480×270 23.4 KB

I can loop through images like this:

local image_num
for i, animation in ipairs(atlas_data.animations) do
    if animation.id == image_id then
        image_num = animation.frame_start
        break
    end
end

it will give output like this:

{ --[[0x7e122c023ef0]]
  fps = 30,
  frame_start = 11,
  frame_end = 12,
  playback = 0,
  id = "header",
  flip_vertical = false,
  width = 16,
  flip_horizontal = false,
  height = 17
}
DEBUG:SCRIPT: 50,
{ --[[0x7e122c0243f0]]
  fps = 30,
  frame_start = 7,
  frame_end = 8,
  playback = 0,
  id = "button_g",
  flip_vertical = false,
  width = 16,
  flip_horizontal = false,
  height = 18
}
DEBUG:SCRIPT: 51,
{ --[[0x7e122c0248f0]]
  fps = 8,
  frame_start = 45,
  frame_end = 47,
  playback = 4,
  id = "pointer",
  flip_vertical = false,
  width = 36,
  flip_horizontal = false,
  height = 18
}
DEBUG:SCRIPT: 52,
{ --[[0x7e122c024df0]]
  fps = 30,
  frame_start = 50,
  frame_end = 197,
  playback = 4,
  id = "tileset",
  flip_vertical = false,
  width = 32,
  flip_horizontal = false,
  height = 48
}

But there is completely diffrent image data at range 50 and 197, is there the way to find correct data?

1 Like
2

If you pprint(atlas_data), you’ll see the full structure of the atlas.
The fields are described here: API reference (Resource)

3

I replied in the created issue with an example and explanation. @boruok I do not see any data missing and it is perfectly possible to get uvs of each frame of an animation.

2 Likes