Porta tots els shaders a Vulkan i Metal

shaders/creation/creation.frag.msl

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+#include <metal_stdlib>
+using namespace metal;
+
+// Creation by Silexars — Danguafer
+// MSL port of creation.vk.glsl.
+
+struct ShadertoyUBO {
+    float iTime;
+    float2 iResolution;
+};
+
+struct PassthroughVOut {
+    float4 pos [[position]];
+    float2 uv;
+};
+
+fragment float4 creation_fs(PassthroughVOut in [[stage_in]],
+                            constant ShadertoyUBO& U [[buffer(0)]]) {
+    float2 fragCoord = in.uv * U.iResolution;
+    float t = U.iTime;
+    float2 r = U.iResolution;
+
+    float3 c = float3(0.0);
+    float l = 0.0;
+    float z = t;
+    for (int i = 0; i < 3; i++) {
+        float2 p = fragCoord / r;
+        float2 uv = p;
+        p -= 0.5;
+        p.x *= r.x / r.y;
+        z += 0.07;
+        l = length(p);
+        float invl = (l > 0.0) ? (1.0 / l) : 0.0;
+        uv += p * invl * (sin(z) + 1.0) * abs(sin(l * 9.0 - z - z));
+        float2 m = fract(uv) - 0.5;
+        float denom = length(m);
+        if (denom < 1e-6) denom = 1e-6;
+        c[i] = 0.01 / denom;
+    }
+    float L = (l > 0.0) ? l : 1.0;
+    return float4(c / L, t);
+}

shaders/creation/creation.vk.glsl

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+#version 450
+
+// Name: Creation by Silexars
+// Author: Danguafer
+// URL: https://www.shadertoy.com/view/XsXXDn
+
+layout(location = 0) in  vec2 vUV;
+layout(location = 0) out vec4 FragColor;
+
+layout(set = 3, binding = 0) uniform ShadertoyUBO {
+    float iTime;
+    vec2  iResolution;
+};
+
+#define t iTime
+#define r iResolution.xy
+
+void mainImage(out vec4 fragColor, in vec2 fragCoord) {
+    vec3 c = vec3(0.0);
+    float l;
+    float z = t;
+    for (int i = 0; i < 3; i++) {
+        vec2 uv, p = fragCoord.xy / r;
+        uv = p;
+        p -= 0.5;
+        p.x *= r.x / r.y;
+        z += 0.07;
+        l = length(p);
+        float invl = (l > 0.0) ? (1.0 / l) : 0.0;
+        uv += p * invl * (sin(z) + 1.0) * abs(sin(l * 9.0 - z - z));
+        vec2 m = mod(uv, 1.0) - 0.5;
+        float denom = length(m);
+        if (denom < 1e-6) denom = 1e-6;
+        c[i] = 0.01 / denom;
+    }
+    float L = (l > 0.0) ? l : 1.0;
+    fragColor = vec4(c / L, t);
+}
+
+void main() {
+    vec2 fragCoordPixels = vUV * iResolution;
+    vec4 outColor;
+    mainImage(outColor, fragCoordPixels);
+    FragColor = outColor;
+}