struct Hex {
  float heights[6];
  uint  colors[6];
};

layout(std430, buffer_reference) readonly buffer Region {
  int q;
  int r;
  Hex hexes[];
};

layout(std430, buffer_reference) readonly buffer HexContext {
  mat4 proj;
  mat4 view;
  Region regions[];
};

layout(std430, push_constant) uniform PushConstant {
  HexContext context;
  uint  region;
  float time;
} pc;