Release Atlas PNG and JSON as One Versioned Pair
When an atlas looks correct after a hard refresh but wrong for returning users, inspect the PNG and metadata as a pair. A new JSON rectangle can point into an old cached image, or old metadata can cro
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Keep Animation Holds When Moving a Sprite Between Tools
An animation can contain all the right images and still feel wrong because its importer replaced unequal frame holds with one frame rate. Preserve the ordered frame-duration pairs, their units and the
Sprite Halos or Atlas Bleed? Run These Controls
A dark sprite outline and a line sampled from a neighboring atlas cell need different fixes. First draw the sprite as a standalone image using the same alpha interpretation, filter and scale as the at
Find Pixel Jitter Before Changing Your Sprite Art
To diagnose pixel-art jitter, freeze one source frame and change only the camera, then restore a fixed camera and change only the animation. That split tells you whether the defect follows scene sampl
Stop Sprite Foot Drift After Atlas Trimming
If a character's planted foot jumps when an animation changes frames, compare that foot in the original canvas coordinates before moving the game object. Independent trimming changes a frame's stored
Keep Sprite Equipment Attached When Facing Left
Store an equipment socket in a declared character coordinate space and mirror it exactly once. Texture flipping, transform mirroring and atlas trimming affect different parts of that calculation. A we
Trace a Sprite Hitch From Download to First Draw
When a sprite hitches on first appearance, trace its path from request to first visible draw. A completed download or resolved asset promise does not, by itself, identify the remaining work. Compare c
Budget Sprite Memory Beyond the PNG File Size
Budget sprite memory from texture dimensions, pixel formats and simultaneously live resources. The PNG download size is a separate network cost. A highly compressed image can still require a large dec
Approve Sprite Timing Without Trusting the GIF
Approve a sprite animation against its ordered frame IDs and intended hold durations, then compare the target runtime with that record. Use a GIF as a convenient visual preview. Its appearance alone c
