/// <summary>
/// Constructor invoked by the <see cref="ARFaceManager"/> which triggered the event.
/// </summary>
/// <param name="face">The <see cref="ARFace"/> component that was updated.</param>
public ARFaceUpdatedEventArgs(ARFace face)
{
if (face == null)
{
throw new ArgumentNullException("face");
}
this.face = face;
}
void OnUpdated(ARFace face)
{
UpdateVisibility();
if (!m_TopologyUpdatedThisFrame)
{
SetMeshTopology();
}
m_TopologyUpdatedThisFrame = false;
}
void RemoveFace(ARFace face)
{
if (faceRemoved != null)
{
faceRemoved(new ARFaceRemovedEventArgs(face));
}
face.OnRemove();
m_Faces.Remove(face.xrFace.trackableId);
}
void BakeTexture(UnityEngine.XR.ARFoundation.ARFace face)
{
int length = face.vertices.Length;
if (positionBuffer == null || positionBuffer.count != length * 3)
{
positionBuffer?.Dispose();
normalBuffer?.Dispose();
positionBuffer = new ComputeBuffer(length * 3, sizeof(float));
normalBuffer = new ComputeBuffer(length * 3, sizeof(float));
}
if (positionTextureRW == null)
{
positionTextureRW = CreateRenderTextureRW(positionTexture);
normalTextureRW = CreateRenderTextureRW(normalTexture);
}
compute.SetInt("VertexCount", length);
compute.SetMatrix("Transform", face.transform.localToWorldMatrix);
compute.SetFloat("FrameRate", 1 / Time.deltaTime);
positionBuffer.SetData(face.vertices);
var mesh = face.GetComponent <MeshFilter>().sharedMesh;
normalBuffer.SetData(mesh?.normals);
compute.SetBuffer(0, "PositionBuffer", positionBuffer);
compute.SetBuffer(0, "NormalBuffer", normalBuffer);
compute.SetTexture(0, "PositionMap", positionTextureRW);
compute.SetTexture(0, "NormalMap", normalTextureRW);
compute.Dispatch(0, positionTexture.width / 8, positionTexture.height / 8, 1);
Graphics.CopyTexture(positionTextureRW, positionTexture);
Graphics.CopyTexture(normalTextureRW, normalTexture);
}
