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Fixed in 2018.2.X
Votes
3
Found in
5.3.2p3
Issue ID
772449
Regression
No
[OSX] D3DCompiler produces incorrect bytecode on Mac (Wodka issue? - need d3dcompiler 10.0.10011.0)
Repro steps:
1) Open the project and TestShader.shader in it
2) In the frag function notice line 54: "fixed c = 5.0*x*x"
2) Select the TestShader in it and compile for OpenGLCore and OpenGLES30
3) Open the compiled code
4) Notice in the fragment main() of gles3 subshader:
t10_0 = vs_TEXCOORD0.x * vs_TEXCOORD0.x;
SV_Target0.xyz = vec3(t10_0) * vec3 (5.0,5.0,5.0);
5) Scroll down to fragment main() of glcore subshader and notice:
SV_Target0.xyz = vs_TEXCOORD0.xxx * vec3 (25.0,25.0,25.0);
Expected result: OpenGLCore compiler squares variable x and not the number 5
Actual: 5 is squared instead of x
Workaround: Use pow(x,2) or use another variable which will store the square value of x*x
Reproduced in: 5.4.0b7; 5.3.2p4; 5.2.3p3
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