25 lines
592 B
Metal
25 lines
592 B
Metal
|
#include <metal_stdlib>
|
||
|
|
#include <simd/simd.h>
|
||
|
|
using namespace metal;
|
||
|
|
struct Inputs {
|
||
|
|
};
|
||
|
|
struct Outputs {
|
||
|
|
float4 sk_FragColor [[color(0)]];
|
||
|
|
};
|
||
|
|
fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
|
||
|
|
Outputs _out;
|
||
|
|
(void)_out;
|
||
|
|
float4 x = float4(1.0, 1.0, 1.0, 1.0);
|
||
|
|
while (x.w == 1.0) {
|
||
|
|
x.x = x.x - 0.25;
|
||
|
|
if (x.x <= 0.0) break;
|
||
|
|
}
|
||
|
|
while (x.z > 0.0) {
|
||
|
|
x.z = x.z - 0.25;
|
||
|
|
if (x.w == 1.0) continue;
|
||
|
|
x.y = 0.0;
|
||
|
|
}
|
||
|
|
_out.sk_FragColor = x;
|
||
|
|
return _out;
|
||
|
|
}
|