modf — separate a value into its integer and fractional components
|out genType i
Specify the value to separate.
A variable that receives the integer part of the argument.
modf separates a floating point value
into its integer and fractional parts. The fractional part of the number is returned
from the function and the integer part (as a floating point quantity) is returned
in the output parameter
|OpenGL ES Shading Language Version|
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