A example of how to create a bloom effect. The idea is not to create the most accurate bloom, but something that is fairly fast to render.
Instead of increasing the kernal size to get a good blur we do a fairly fast approximation by downscaling the original image to multiple smaller render-targets and then blurring these using a relative small kernel and then finally rescaling the result to the original size.
Inspired by:
- http://kalogirou.net/2006/05/20/how-to-do-good-bloom-for-hdr-rendering/
- https://prideout.net/blog/old/archive/bloom/index.php.html
Command line arguments':
| Argument | Description | Source |
|---|---|---|
| --BlurPass <arg> | Blue pass on/off | Demo |
| --BrightPass <arg> | Bright pass on/off | Demo |
| --FinalBloom <arg> | Render final bloom on/off | Demo |
| --FinalScene <arg> | Render final scene on/off | Demo |
| --Rotate <arg> | Rotate on/off | Demo |
| --ScaleSeq <arg> | Scale input sequentially on/off | Demo |
| --ShowBuffers <arg> | Show buffers on/off | Demo |
| -s, --Scene <arg> | Select the scene number | Demo |
| --ActualDpi <arg> | ActualDpi [x,y] Override the actual dpi reported by the native window | DemoHost |
| --DensityDpi <arg> | DensityDpi <number> Override the density dpi reported by the native window | DemoHost |
| --DisplayId <arg> | DisplayId <number> | DemoHost |
| --EGLAlphaSize <arg> | Force EGL_ALPHA_SIZE to the given value | DemoHost |
| --EGLBlueSize <arg> | Force EGL_BLUE_SIZE to the given value | DemoHost |
| --EGLDepthSize <arg> | Force EGL_DEPTH_SIZE to the given value | DemoHost |
| --EGLGreenSize <arg> | Force EGL_GREEN_SIZE to the given value | DemoHost |
| --EGLLogConfig | Output the EGL config to the log | DemoHost |
| --EGLLogConfigs <arg> | Output the supported configurations to the log. 0=Off, 1=All, 2=HDR. Don't confuse this with LogConfig. | DemoHost |
| --EGLLogExtensions | Output the EGL extensions to the log | DemoHost |
| --EGLRedSize <arg> | Force EGL_RED_SIZE to the given value | DemoHost |
| --EGLSampleBuffers <arg> | Force EGL_SAMPLE_BUFFERS to the given value | DemoHost |
| --EGLSamples <arg> | Force EGL_SAMPLES to the given value | DemoHost |
| --Window <arg> | Window mode [left,top,width,height] | DemoHost |
| --AppFirewall | Enable the app firewall, reporting crashes on-screen instead of exiting | DemoHostManager |
| --ContentMonitor | Monitor the Content directory for changes and restart the app on changes.WARNING: Might not work on all platforms and it might impact app performance (experimental) | DemoHostManager |
| --ExitAfterDuration <arg> | Exit after the given duration has passed. The value can be specified in seconds or milliseconds. For example 10s or 10ms. | DemoHostManager |
| --ExitAfterFrame <arg> | Exit after the given number of frames has been rendered | DemoHostManager |
| --ForceUpdateTime <arg> | Force the update time to be the given value in microseconds (can be useful when taking a lot of screen-shots). If 0 this option is disabled | DemoHostManager |
| --LogStats | Log basic rendering stats (this is equal to setting LogStatsMode to latest) | DemoHostManager |
| --LogStatsMode <arg> | Set the log stats mode, more advanced version of LogStats. Can be disabled, latest, average | DemoHostManager |
| --ScreenshotFormat <arg> | Chose the format for the screenshot: bmp, jpg, png (default), tga | DemoHostManager |
| --ScreenshotFrequency <arg> | Create a screenshot at the given frame frequency | DemoHostManager |
| --ScreenshotNamePrefix <arg> | Chose the screenshot name prefix (defaults to 'Screenshot') | DemoHostManager |
| --ScreenshotNameScheme <arg> | Chose the screenshot name scheme: frame (default), sequence, exact. | DemoHostManager |
| --Stats | Display basic frame profiling stats | DemoHostManager |
| --StatsFlags <arg> | Select the stats to be displayed/logged. Defaults to frame|cpu. Can be 'frame', 'cpu' or any combination | DemoHostManager |
| --Version | Print version information | DemoHostManager |
| --Graphics.Profile | Enable graphics service stats | GraphicsService |
| --Profiler.AverageEntries <arg> | The number of frames used to calculate the average frame-time. Defaults to: 60 | ProfilerService |
| --ghelp <arg> | Display option groups: all, demo or host | base |
| -h, --help | Display options | base |
| -v, --verbose | Enable verbose output | base |