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Fixed in 2020.1

Fixed in 2019.3

Votes

0

Found in

2017.4

2018.4

2019.2

2019.2.0f1

2019.3

2020.1

Issue ID

1186752

Regression

No

Additional integer operation is added to a Shader causing performance drop on older devices when Compiling with Gles3 or Gles2

Shaders

-

Steps to reproduce:
1. Open attached project "Case_1186752"
2. Navigate to Project -> Assets and select "Cutout Hlsl" shader
3. In the Inspector window Press "Compile and show code"
4. In the open text editor scroll down to the line 107
5. Notice the additional integer operation is added if(((int(u_xlatb1) * int(0xffffffffu)))!=0){discard;}

Expected results: No additional Integer operation is added making the build smooth on older devices
Actual results: Additional Integer operation is added making a performance slowdown on older devices

Reproducible with: 2017.4.0f1, 2017.4.33f1, 2018.4.12f1, 2019.2.10f1, 2019.3.0b8, 2020.1.0a9

Shader compiles clip/discard incorrectly on GLES devices, causing noticeable slowdowns

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