1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct buf
{
float t;
};
struct main0_out
{
float4 fragColor [[color(0)]];
};
struct main0_in
{
float2 coords [[user(locn0)]];
};
fragment main0_out main0(main0_in in [[stage_in]], constant buf& ubuf [[buffer(0)]])
{
main0_out out = {};
float i = 1.0 - (pow(abs(in.coords.x), 4.0) + pow(abs(in.coords.y), 4.0));
i = smoothstep(ubuf.t - 0.800000011920928955078125, ubuf.t + 0.800000011920928955078125, i);
i = floor(i * 20.0) / 20.0;
out.fragColor = float4((in.coords * 0.5) + float2(0.5), i, i);
return out;
}
|
