/// <summary>
/// Generate Native Appdata from mesh
/// </summary>
/// <param name="appdatas"></param>
/// <param name="triangles"></param>
/// <returns></returns> vertex Count
public static int GetAppDataFromMesh(Mesh mesh, out NativeArray <MeshAppdata> meshData, out int[] triangles)
{
Vector3[] vertices = mesh.vertices;
Vector2[] uv = mesh.uv;
Vector4[] tan = mesh.tangents;
Vector3[] normal = mesh.normals;
if (uv.Length != vertices.Length)
{
uv = new Vector2[vertices.Length];
}
if (tan.Length != vertices.Length)
{
tan = new Vector4[vertices.Length];
}
if (normal.Length != vertices.Length)
{
normal = new Vector3[vertices.Length];
}
if (uv.Length != vertices.Length)
{
uv = new Vector2[vertices.Length];
}
meshData = new NativeArray <MeshAppdata>(vertices.Length, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
for (int i = 0; i < meshData.Length; ++i)
{
meshData[i] = new MeshAppdata
{
vertex = vertices[i],
normal = normal[i],
tangent = tan[i],
uv = uv[i]
};
}
triangles = mesh.triangles;
return(vertices.Length);
}
public void Execute(int index)
{
index *= 3;
MeshAppdata v0 = appdatas[triangles[index]];
MeshAppdata v1 = appdatas[triangles[index + 1]];
MeshAppdata v2 = appdatas[triangles[index + 2]];
float t = float.MaxValue;
float2 uv = 0;
if (IntersectTriangle(origin, dir, mul(*transformMatrix, float4(v0.vertex, 1)).xyz, mul(*transformMatrix, float4(v1.vertex, 1)).xyz, mul(*transformMatrix, float4(v2.vertex, 1)).xyz, &t, &uv) && t > 0)
{
results.ConcurrentAdd(new RayIntersectResult
{
t = t,
triangle = new TriangleData
{
v0 = v0,
v1 = v1,
v2 = v2
},
uv = uv
});
}
}
