Radial gradient converted to linear gradient when using get_image()

[01271]

Godot version

4.1.1

System information

Godot v4.1.1.stable - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3080 (NVIDIA; 31.0.15.3168) - AMD Ryzen 7 7800X3D 8-Core Processor (16 Threads)

Issue description

Using get_image on a radial GradientTexture2D returns a linear gradient instead of a radial gradient.

This image illustrates the same gradient in two places. The one on the left has been converted using get_image() and the one on the right uses the same texture but has not been converted.

Steps to reproduce

Create 2d radial gradient, turn into image texture, draw image texture.

Minimal reproduction project

GradientDemo.zip

[01271]

This issue is present on all 3 renderers. Forward, mobile, compatibility.

[kleonc]

Duplicate of #66627 (when get_image is called GradientTexture2D has not yet generated/updated its texture as it is deferred).

A workaround is to call get_image also in a deferred manner (e.g. after awaiting SceneTree.process_frame signal).