How do I convert RGB to float values?

Question

im getting 3 ints: R, G, B I want to use this colors for something where i need to enter 3 floats: R, G, B. How do I "convert" the int to a float? Because in the float 1 is the highest

Thanks

Solution

Depending on the range of the int RGB values, you can simply divide by the maximum brightness value allowed to convert to float.

For example, if the int ranges from 0 - 255 (e.g. HTML Color Codes), then you can use

float fR = intR / 255.0F;

and so on for G and B.

Comments

[GibEinenNamenEin]

what is iR? Is it the int?

[NetMage]

@RarePotato8DE Yes that is the int R value.

[Didi Kohen]

Why is it 255 and not 256? Aren't there 256 possible values for each color?

[NetMage]

@DidiKohen Yes, but the range of values is 0 to 255. You want to match those values to the range 0.0 - 1.0, you want 0 to return 0 and you want 255 to return 1.0.