I’m trying to pass a value between 1-1000 to an GLSL shader program which only
supports floats with a precision of 1 decimal place so the plan is to pack the
value into a vec4 (RGBA components between 0-1) which I could decode in the
shader program.
For example if I want to encode the value 50 I do: 50/1000 = 0.050 and get a
value with 3 decimal places which could fit into an RGB value,
but how can I extract the decimal places? I think it has something to do bit
shifting but I wasn’t able to figure it out. The final result should be:
r = 0
g = 5
b = 0
Regards,
Ryan Joseph
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