Update

resources/main/DefaultShaders.metal

@@ -0,0 +1,38 @@
+#include "OgreUnifiedShader.h"
+
+struct RasterizerData
+{
+  vec4 pos [[position]];
+  vec2 uv;
+};
+
+struct Vertex
+{
+  IN(vec3 pos, POSITION);
+  IN(vec2 uv, TEXCOORD0);
+};
+
+struct Uniform
+{
+  mat4 mvpMtx;
+  mat4 texMtx;
+};
+
+// first 15 slots are reserved for the vertex attributes
+#define UNIFORM_INDEX_START 16
+
+vertex RasterizerData default_vp(Vertex in [[stage_in]],
+                                 constant Uniform& u [[buffer(UNIFORM_INDEX_START)]])
+{
+  RasterizerData out;
+  out.pos = u.mvpMtx * vec4(in.pos, 1);
+  out.uv = (u.texMtx * vec4(in.uv,1,1)).xy;
+  return out;
+}
+
+fragment half4 default_fp(RasterizerData in [[stage_in]],
+                          metal::texture2d<half> tex [[texture(0)]],
+                          metal::sampler s [[sampler(0)]])
+{
+  return tex.sample(s, in.uv);
+}