public static Texture2D Copy(this Texture2D tex)
{
return(TextureHelper.CopyTexture(tex,
TextureHelper.CreateTexture(tex.width, tex.height)));
}
/// <summary>
/// Called from Agent's SendInfoToBrain method.
/// Populates the agent's info.visualObservations list with textures
/// from the agent cameras, the camera buffers and optional custom
/// textures, based on the Observation settings.
/// </summary>
/// <param name="agent">Agent.</param>
/// <param name="agentVisualObservations">
/// The agent's info.visualObservations list.</param>
public void ApplyObservations(Agent agent,
List <Texture2D> agentVisualObservations)
{
if (HasObservations())
{
Camera[] cameras = agent.agentParameters.agentCameras.ToArray();
if (numCameras > cameras.Length)
{
throw new UnityAgentsException(string.Format(
"Not enough cameras for agent {0}: Brain {1} expects at"
+ " least {2} cameras but only {3} are present.",
agent.gameObject.name, agent.brain.gameObject.name,
numCameras, cameras.Length));
}
TextureHelper[] texHelpers = GetAgentTextureHelpers(agent);
// Assuming agent's camera order matches observations order
// in inspector.
int camIndex = 0;
for (int i = 0, n = observations.Length; i < n; i++)
{
if (string.IsNullOrEmpty(observations[i].textureID))
{
Agent.ObservationToTexture(cameras[camIndex++],
observations[i].width,
observations[i].height,
ref texHelpers[i].input);
}
else
{
Texture2D tmp;
string key = observations[i].textureID
+ agent.GetInstanceID();
if (customTextures.TryGetValue(key, out tmp))
{
if (tmp.width != observations[i].width ||
tmp.height != observations[i].height)
{
throw new UnityAgentsException(string.Format(
"Custom texture size {0} x {1} does not match "
+ " observation size {2} x {3}.",
tmp.width, tmp.height,
observations[i].width, observations[i].height));
}
TextureHelper.CopyTexture(tmp, texHelpers[i].input);
}
else
{
throw new UnityAgentsException(string.Format(
"Custom texture {0} not found for agent {1}.",
observations[i].textureID,
agent.gameObject.name));
}
}
texHelpers[i].ApplyBuffer(observations[i],
agentVisualObservations);
}
}
}