Formatting CIColorCube data

Question

Recently, I\'ve been trying to set up a CIColorCube on a CIImage to create a custom effect. Here\'s what I have now:

uint8_t color_cube_data[8*4] = {
    0,          


        

Answer 1

The accepted answer is incorrect. While the cube data is indeed supposed to be scaled to [0 .. 1], it's supposed to be float, not int.

float color_cube_data[8*4] = { 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 };

(Technically, you don't have to put the ".0" on each number, the compiler knows how to handle it.)