2021-08-24 18:13:45 +00:00
|
|
|
uniform half4 testInputs; // equals (-1.25, 0, 0.75, 2.25)
|
|
|
|
|
uniform half4 colorGreen, colorRed;
|
|
|
|
|
|
|
|
|
|
half4 main(float2 coords) {
|
|
|
|
|
// NOTE: the ES3 spec does not mandate NaN support. This test may not succeed on some GPUs.
|
|
|
|
|
|
|
|
|
|
half4 valueIsNaN = 0 / testInputs.yyyy;
|
|
|
|
|
half4 valueIsNumber = 1 / testInputs;
|
|
|
|
|
|
|
|
|
|
return ( (isnan(valueIsNaN.x)) &&
|
|
|
|
|
all(isnan(valueIsNaN.xy)) &&
|
|
|
|
|
all(isnan(valueIsNaN.xyz)) &&
|
|
|
|
|
all(isnan(valueIsNaN.xyzw)) &&
|
|
|
|
|
! (isnan(valueIsNumber.x)) &&
|
|
|
|
|
!any(isnan(valueIsNumber.xy)) &&
|
|
|
|
|
!any(isnan(valueIsNumber.xyz)) &&
|
|
|
|
|
!any(isnan(valueIsNumber.xyzw))) ? colorGreen : colorRed;
|
|
|
|
|
}
|
