/// <summary>
/// Loads the selected source image as preview.
/// </summary>
public void LoadSourceImageAsPreview()
{
if (!Application.isPlaying || _previewSourceImagesLoader == null || _previewSourceImagesLoader.colorData == null ||
cameraSetup.previewIndex == _lastLoadedPreviewIndex || cameraSetup.cameraModels == null || cameraSetup.cameraModels.Length < 1)
{
return;
}
_lastLoadedPreviewIndex = cameraSetup.previewIndex;
if (previewSourceTexture != null)
{
DestroyImmediate(previewSourceTexture);
}
Vector2Int previewResolution = PreviewWindow.GetPreviewResolution(cameraSetup.cameraModels[_lastLoadedPreviewIndex].pixelResolution);
GeneralToolkit.CreateRenderTexture(ref previewSourceTexture, previewResolution, 0, RenderTextureFormat.ARGB32, false, FilterMode.Point);
Graphics.Blit(_previewSourceImagesLoader.colorData, previewSourceTexture, _lastLoadedPreviewIndex, 0);
int previewMaxIndex = cameraSetup.cameraModels.Length - 1;
PreviewWindow.DisplayImage(_sourceCallerName, previewSourceTexture, previewMaxIndex);
}
/// <summary>
/// In play mode, loads the rendered view and the evaluation metric for preview.
/// </summary>
public void LoadRenderedViewAsPreview()
{
RenderTexture.active = null;
if (_previewEvalTexture != null)
{
DestroyImmediate(_previewEvalTexture);
}
if (_previewRenderTexture != null)
{
DestroyImmediate(_previewRenderTexture);
}
// Check that there are camera models, that the application is playing, and that the object is active.
if (processing.cameraSetup.cameraModels == null || !Application.isPlaying || !gameObject.activeInHierarchy || !_launched)
{
return;
}
int previewMaxIndex = processing.cameraSetup.cameraModels.Length - 1;
// Get the camera model for this index.
CameraModel tempCameraModel = CameraModel.CreateCameraModel();
tempCameraModel.ParametersFromCameraModel(processing.cameraSetup.cameraModels[processing.cameraSetup.previewIndex]);
tempCameraModel.pixelResolution = PreviewWindow.GetPreviewResolution(tempCameraModel.pixelResolution);
// Display a preview of the rendered view.
if (selectedBlendingMethod != null && selectedEvaluationMethod != null)
{
// Inform the blending method to exclude the source view if desired.
if (selectedEvaluationMethod.excludeSourceView)
{
selectedBlendingMethod.ExcludeSourceView(processing.cameraSetup.previewIndex);
}
// Create a preview camera manager and initialize it with the camera model's pose and parameters.
PreviewCameraManager previewCameraManager = new GameObject("Preview Camera Manager").AddComponent <PreviewCameraManager>();
Transform previewCameraTransform = new GameObject("Preview Camera").transform;
GeneralToolkit.CreateRenderTexture(ref previewCameraManager.targetTexture, Vector2Int.one, 0, RenderTextureFormat.ARGB32, false, FilterMode.Point, TextureWrapMode.Clamp);
previewCameraManager.CreatePreviewCamera(previewCameraManager.gameObject, previewCameraTransform, tempCameraModel);
previewCameraManager.previewCamera.clearFlags = CameraClearFlags.Color;
previewCameraManager.previewCamera.backgroundColor = Color.black;
// Render the preview camera to a target texture, and display it in the preview window.
previewCameraManager.RenderPreviewToTarget(ref previewCameraManager.targetTexture, false);
GeneralToolkit.CreateRenderTexture(ref _previewRenderTexture, tempCameraModel.pixelResolution, 0, RenderTextureFormat.ARGB32, false, FilterMode.Point, TextureWrapMode.Clamp);
Graphics.Blit(previewCameraManager.targetTexture, _previewRenderTexture);
PreviewWindow.DisplayImage(_renderCallerName, _previewRenderTexture, previewMaxIndex);
// Destroy the preview camera manager.
previewCameraManager.DestroyPreviewCamera();
DestroyImmediate(previewCameraManager.gameObject);
// Inform the blending method that it should no longer exclude the source view.
selectedBlendingMethod.ExcludeSourceView(-1);
}
DestroyImmediate(tempCameraModel.gameObject);
// Display the evaluation metric as an RGB color texture.
if (selectedEvaluationMethod != null && selectedEvaluationMethod.evaluationMaterial != null)
{
// Use a shader to compute the evaluation metric for each pixel and display it as a color value.
GeneralToolkit.CreateRenderTexture(ref _previewEvalTexture, tempCameraModel.pixelResolution, 0, RenderTextureFormat.ARGB32, true, FilterMode.Point, TextureWrapMode.Clamp);
selectedEvaluationMethod.evaluationMaterial.SetTexture(EvaluationMethod.shaderNameTextureOne, processing.previewSourceTexture);
selectedEvaluationMethod.evaluationMaterial.SetTexture(EvaluationMethod.shaderNameTextureTwo, _previewRenderTexture);
Graphics.Blit(null, _previewEvalTexture, selectedEvaluationMethod.evaluationMaterial);
// Display the created texture in the preview window.
PreviewWindow.DisplayImage(_evalCallerName, _previewEvalTexture, previewMaxIndex);
}
}