#pragma once

// PowX uses the same amount of instructions as generic pow(), but has 2 advantages:
// 1) better instruction pipelining
// 2) no need to worry about NaNs

half SafePow3(half val)
{
    return val * val * val;;
}

half SafePow4(half val)
{
    half val2 = val * val;
    return val2 * val2;
}

half SafePow5(half val)
{
    half val2 = val * val;
    return val2 * val2 * val;
}

half LumByMax(half3 col) { return max(max(col.x, col.y), col.z); }
half LumByDot(half3 col) { return dot(col, half3(0.3, 0.6, 0.1)); }