/// <summary>
/// Pull the texture descriptors from the camera subsystem, and update the texture information maintained by
/// this component.
/// </summary>
/// <param name="frame">The latest updated camera frame.</param>
void UpdateTexturesInfos(XRCameraFrame frame)
{
var textureDescriptors = subsystem.GetTextureDescriptors(Allocator.Temp);
try
{
int numUpdated = Math.Min(m_TextureInfos.Count, textureDescriptors.Length);
// Update the existing textures that are in common between the two arrays.
for (int i = 0; i < numUpdated; ++i)
{
m_TextureInfos[i] = ARTextureInfo.GetUpdatedTextureInfo(m_TextureInfos[i], textureDescriptors[i]);
}
// If there are fewer textures in the current frame than we had previously, destroy any remaining unneeded
// textures.
if (numUpdated < m_TextureInfos.Count)
{
for (int i = numUpdated; i < m_TextureInfos.Count; ++i)
{
m_TextureInfos[i].Reset();
}
m_TextureInfos.RemoveRange(numUpdated, (m_TextureInfos.Count - numUpdated));
}
// Else, if there are more textures in the current frame than we have previously, add new textures for any
// additional descriptors.
else if (textureDescriptors.Length > m_TextureInfos.Count)
{
for (int i = numUpdated; i < textureDescriptors.Length; ++i)
{
m_TextureInfos.Add(new ARTextureInfo(textureDescriptors[i]));
}
}
}
finally
{
if (textureDescriptors.IsCreated)
{
textureDescriptors.Dispose();
}
}
}
/// <summary>
/// Update the human segmentation image information if the subsystem has human segmentation images.
/// </summary>
void UpdateTexturesInfos()
{
XRTextureDescriptor humanStencilDescriptor;
if (subsystem.TryGetHumanStencil(out humanStencilDescriptor))
{
m_HumanStencilInfo = ARTextureInfo.GetUpdatedTextureInfo(m_HumanStencilInfo, humanStencilDescriptor);
}
else
{
m_HumanStencilInfo.Reset();
}
XRTextureDescriptor humanDepthDescriptor;
if (subsystem.TryGetHumanDepth(out humanDepthDescriptor))
{
m_HumanDepthInfo = ARTextureInfo.GetUpdatedTextureInfo(m_HumanDepthInfo, humanDepthDescriptor);
}
else
{
m_HumanDepthInfo.Reset();
}
}
