After reading that float4 cloud increase performance I tried to change my finding min max funtion to float4 types.
At first:
reduce void(float4 a<>, reduce float4 b<>)
{
if(a.x > b.x)
b.x = a.x;
if(a.y > b.y)
b.y = a.y;
if(a.z > b.z)
b.z = a.z;
if(a.w > b.w)
b.w = a.w;
}
works fine. After reading User Guide, I saw A.2 Relational Operators on Short Vectors, the ternary operator ?: could do the same thing. So I change it to:
reduce void(float4 a<>, reduce float4 b<>)
{
b = a > b ? a : b;
}
But I get error message containing must use any() or all() for logical operation like that.
Anyone has a clue? Thank you.
