The Scene Overview pane shows metrics for regions and individual ergs. You can select ergs and regions for analysis either in this pane, or in the Visualization pane.
When you load a frame capture, the Scene Overview pane is populated immediately. This pane contains the following main elements:
The Scene Overview pane does not display erg timing data on tile-based rendering architectures.
Select a scene layout from this list:
Regions Only - hierarchical region view; no ergs or markers. This layout enables you to investigate blocks of ergs. However, it does not provide details of the individual ergs within each region.
Ergs - simple chronologically ordered flat list (no nesting). This layout shows the low-level draw calls; it does not show information on where in the scene they occur.
Full Tree (default) - hierarchical scene overview. This layout shows the aggregated times of all the ergs within regions. Using this view, you can see which pass or portion of the scene is taking the most time on the GPU.
Graphics Frame Analyzer automatically saves View Selection settings. If you restart the Graphics Frame Analyzer, the previous settings will be used. To reset the settings to the default, go to the Edit menu > Reset Metric Selections.
Use the list to select the metric to be shown in the Ergs Table.
Graphics Frame Analyzer automatically saves Metric Selection settings. If you exit the Graphics Frame Analyzer and then run this tool again, the previous settings will be used. To reset the settings to the default, go to the Edit menu > Reset Metric Selections.
Use the Save Selected Erg(s) button to save all fields for all metrics to the
.csv file. If nothing is selected, data for all ergs in the frame will be saved.
By default, all saved data files reside in the user's home directory:
The list columns are associated with:
Type - the line item type: either an erg, or a marker
Prim Count - the number of primitives (triangle fans, triangle strips, triangle lists, line strips, line lists, or point lists)
Old – the original metric value
New – the modified metric value
Δ - absolute change between the original and modified values
%Δ - percentage change between the original and modified values
Variance - the variance in the metric value; to improve overall data accuracy for the metrics, Intel® GPA performs multiple playbacks of the scene, and displays the sample variance for the metric.
To sort by a column, click the column header. You can also re-order the columns by dragging their headers left or right.