#version 450
#extension GL_EXT_mesh_shader : require

layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
layout(triangles, max_vertices = 3, max_primitives = 1) out;

void main()
{
  uint vertexCount = 3;
  uint triangleCount = 1;
  SetMeshOutputsEXT(vertexCount, triangleCount);
  gl_MeshVerticesEXT[0].gl_Position = vec4(0.5,-0.5, 0, 1);
  gl_MeshVerticesEXT[1].gl_Position = vec4(0.5, 0.5, 0, 1);
  gl_MeshVerticesEXT[2].gl_Position = vec4(-0.5, 0.5, 0, 1);
  gl_PrimitiveTriangleIndicesEXT[0] =  uvec3(0, 1, 2);
}