Linear blend
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#include <stdio.h>
#include <math.h>
double get_blend_color(double a, double b, double opacity)
{
a = pow(a, 2.2);
b = pow(b, 2.2);
double result = a * opacity + b * (1 - opacity);
result = pow(result, 1/2.2);
return result;
}
int main()
{
printf("%f\n", get_blend_color(1,0,0.5));
return 0;
}
Cpp
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