Porta tots els shaders a Vulkan i Metal

shaders/test/test.vk.glsl

@@ -4,7 +4,8 @@
 // Author: JailDesigner
 //
 // Vulkan port of test.gl.glsl. Bindings follow the SDL3 GPU convention:
-//   set=3, binding=0 — fragment uniform buffer (ShadertoyUniforms in C++).
+//   set=3, binding=0 — fragment uniform buffer (anonymous block: members
+//   are accessible directly as iTime / iResolution, like Shadertoy).
 
 layout(location = 0) in  vec2 vUV;
 layout(location = 0) out vec4 FragColor;
@@ -12,7 +13,7 @@ layout(location = 0) out vec4 FragColor;
 layout(set = 3, binding = 0) uniform ShadertoyUBO {
     float iTime;
     vec2  iResolution;
-} u;
+};
 
 vec3 palette(float t) {
     vec3 a = vec3(1.0, 0.5, 0.5);
@@ -23,10 +24,10 @@ vec3 palette(float t) {
 }
 
 void mainImage(out vec4 fragColor, in vec2 fragCoord) {
-    vec2 uv = (fragCoord * 2.0 - u.iResolution) / u.iResolution.y;
+    vec2 uv = (fragCoord * 2.0 - iResolution) / iResolution.y;
     float d = length(uv);
     vec3 col = palette(d);
-    d = sin(d * 8.0 + u.iTime) / 8.0;
+    d = sin(d * 8.0 + iTime) / 8.0;
     d = abs(d);
     d = 0.02 / d;
     col *= d;
@@ -34,7 +35,7 @@ void mainImage(out vec4 fragColor, in vec2 fragCoord) {
 }
 
 void main() {
-    vec2 fragCoordPixels = vUV * u.iResolution;
+    vec2 fragCoordPixels = vUV * iResolution;
     vec4 outColor;
     mainImage(outColor, fragCoordPixels);
     FragColor = outColor;