Vertex Shader (for CanvasItems) rotates to the wrong direction in Godot 3.2.4.

[koodikulma-fi]

Godot version:
Godot 3.2.4 rc1-4. Works correctly in Godot 3.2.3 stable.

OS/device including version:
Windows 10, GLES3. (GPU: Nvidia GTX1080)

Issue description:
When creating a VertexShader (with just VERTEX = VERTEX; in the vertex function), and rotating the CanvasItem (eg. a Sprite), the rotation direction is flipped. See screenshot. (The 'editing boundary' of the Sprite rotates correctly, graphical content not.)

Steps to reproduce:

• Create a Sprite.
• Create a ShaderMaterial for it.
• Create a Shader script.
• Write into the script:

shader_type canvas_item;
void vertex() {
   VERTEX = VERTEX; // Uncommenting this, makes it work fine - as the shader is essentially bypassed.
}

Minimal reproduction project:
VertexShaderProblem.zip

[Calinou]

I can reproduce this on 3.2.4rc3, both with the GLES3 and GLES2 renderers. However, this doesn't occur when batching is disabled in the Project Settings (both in GLES3 and GLES2).

cc @lawnjelly

[lawnjelly]

Ah this sounds like a simple polarity mishap lol. I'll take a look. 😀

[lawnjelly]

Fixed by #46898