Raycast coordinates are incorrect

[CHFreezer]

Masked button can't be clicked.

• Unity: 2019.1.1f1
• SoftMaskForUGUI: v0.8.0

I tried to modify

SoftMaskForUGUI/Assets/Coffee/UIExtensions/SoftMaskForUGUI/Scripts/SoftMask.cs

Line 243 in bffaed3

int y = (int)((softMaskBuffer.height - 1) * Mathf.Clamp01(sp.y / Screen.height));

to:
int y = (int)((softMaskBuffer.height - 1) * (1 - Mathf.Clamp01(sp.y / Screen.height)));
after it worked for me.
But I want to know why, thanks!

[mob-sakai]

Hi @CHFreezer
Thank you for reporting!

• Can you submit a reproducible project for this issue?
• Please tell me your environment
  • Platforms: e.g. Editor [Windows/Mac], Standalone [Windows/Mac], iOS, Android, etc...
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  • GPU and Graphic API:

[mob-sakai]

I think UNITY_UV_STARTS_AT_TOP is related.

[vekstr]

@CHFreezer 's fix also worked for me

[Matata-lol]

I think UNITY_UV_STARTS_AT_TOP is related.

Yes, it is. OpenGL works fine, but DX11 has this problem.

[mob-sakai]

I am sorry for not fixing this problem for a long time.
I will fix it with SystemInfo.graphicsUVStartsAtTop API.

https://docs.unity3d.com/2017.4/Documentation/ScriptReference/SystemInfo-graphicsUVStartsAtTop.html