struct VertexInput {
  float2 positions;
  float3 colors;
  float2 texCoord;
};

struct UniformBuffer {
  float4x4 model;
  float4x4 view;
  float4x4 proj;
};
ConstantBuffer<UniformBuffer> ubo;

struct VertexOutput {
  float4 pos: SV_Position;
  float3 color;
  float2 texCoord;
};

[shader("vertex")]
VertexOutput vertMain(VertexInput inVert) {
  VertexOutput outVert;
  outVert.pos = mul(ubo.proj, mul(ubo.view, mul(ubo.model, float4(inVert.positions, 0.0, 1.0))));
  outVert.color = inVert.colors;
  outVert.texCoord = inVert.texCoord;
  return outVert;
}

Sampler2D texture;

[shader("fragment")]
float4 fragMain(VertexOutput inVert) : SV_Target {
  //return float4(inVert.texCoord, 0.0, 1.0);
  //return float4(inVert.color * texture.Sample(inVert.texCoord).rgb, 1.0);
  return texture.Sample(inVert.texCoord);
}