Black lines when rendering spine icons using spine web player 4.0.

shikhar

Black lines occur on some devices when rendering spine icons using spine web player.
Tech: Cordova iOS
SpinePlayer version: 4.0.28
Used settings:
premultipliedAlpha: false,
showControls: false,
alpha: true,
backgroundColor: "#00000000",
preserveDrawingBuffer: true,
showLoading: false,

Nate

Could you show what the rendering artifacts look like?

Mario

Use premultiplied alpha for your assets. Without knowing the devices and their OS and browser versions, it's impossible to give better advice or identify the issue. Cordova uses the OS browser engine on iOS, so this might be a Safari iOS issue for specific Safari iOS versions.

shikhar

Device name: iPhone XR, iPad Pro 5th gen
iOS version 15.3
Actual image:

Rendered image:

Erika

Hi, if Premultiplied Alpha is off at runtime, but on when you export from the Spine editor, these lines may occur. Please make sure the settings you set on export from the editor match the ones at runtime.
http://esotericsoftware.com/spine-texture-packer#Premultiply-alpha