/// <summary>
/// Composite layers
/// </summary>
/// <param name="callback">Callback to be invoked with the composite texture</param>
public void Composite(CompositeCallback callback)
{
// Null checking
if (callback == null)
{
Debug.LogError("Compositor: Callback must not be null");
return;
}
if (composite == null)
{
Debug.LogError("Compositor: No layers to composite. You might have called Dispose() too early");
return;
}
// If immediate, composite
foreach (var layer in layers)
{
Composite(layer);
}
// Create a result texture
var result = new Texture2D(width, height);
// Load the composite data into the texture
result.SetPixels32(composite);
result.Apply();
// Invoke callback
callback(result);
}
/// <summary>
/// Create a new composition layer
/// </summary>
/// <param name="texture">Layer texture</param>
/// <param name="offset">Offset of the layer's bottom left corner before any rotation is applied</param>
/// <param name="rotation">Layer's rotation in degrees</param>
/// <param name="scale">Layer's scale. To use natural scale, use (1, 1)<param>
/// <param name="callback">Callback to be invoked once the layer has been composited. Use this for resource or memory management</summary>
public Layer(Texture2D texture, Point offset, float rotation, Vector2 scale, CompositeCallback callback = null)
{
this.texture = texture;
this.offset = offset;
this.rotation = rotation;
this.scale = scale;
this.callback = callback;
}
/// <summary>
/// Composite layers
/// </summary>
/// <param name="callback">Callback to be invoked with the composite texture</param>
public void Composite(CompositeCallback callback)
{
// Null checking
if (callback == null)
{
Debug.LogError("Compositor: Callback must not be null");
return;
}
// ...
}
private void Readback(CompositeCallback callback)
{
commandQueue.Enqueue(() => {
// Create a result texture
var result = new Texture2D(composite.width, composite.height);
RenderTexture current = RenderTexture.active;
RenderTexture.active = composite;
// Read back
result.ReadPixels(new Rect(0, 0, composite.width, composite.height), 0, 0);
result.Apply();
RenderTexture.active = current;
// Invoke callback
callback(result);
});
}
/// <summary>
/// Composite layers
/// </summary>
/// <param name="callback">Callback to be invoked with the composite texture</param>
public void Composite(CompositeCallback callback)
{
// Null checking
if (callback == null)
{
Debug.LogError("Compositor: Callback must not be null");
return;
}
// Count checking
if (layers.Count == 0)
{
Debug.LogError("Compositor: No layers provided");
return;
}
// Composite all layers
foreach (var layer in layers)
{
Composite(layer);
}
// Readback
Readback(callback);
}
