Instead of rendering a full screen quad for post process passes, render a mesh which represents only the screen area visible in the HMD after distortion.
This cuts the cost of post processing ~10-15% with no visible difference.
Initial implementation for the Vive.
[CL 2644327 by Ryan Vance in Main branch]
With existing code if you pass a material instance with no parent in it will always default to the default surface material.
#codereview Martin.Mittring
[CL 2495685 by Nick Penwarden in Main branch]
- Addes 3_1 define on shaders
- Fixes GL packed uniforms array size incorrect assert
- Disallows running the editor with -featureleveles2
- r.MobileHDR is now read-only
- Moved some checks from SM3 to SM4
[CL 2270866 by Rolando Caloca in Main branch]
#ttp 318670 - UE4: RENDERING: FORTNITE: Write HighResScreenshots to OpenEXR (ideally PSD as well)
#proj Engine
#branch UE4
#summary Added OpenEXR library, added OpenEXR format to ImageWrapper Module, Changed highres screenshot code to save with image wrapper.
#Add OpenEXR support (for writing) to ImageWrapper module. (enabled for windows builds only)
#Add added option to highres screenshot code to choose to output as hdr / openexr
#Add 2 new visualisation modes, scene depth world units and custom depth world units.
#add cvar 'r.BufferVisualizationDumpFramesAsHDR' to enable hdr export from console.
#change FRCPassPostProcessMaterial can specify an override output texture format if required.
#add SaveImage function to FHighResScreenshotConfig
[CL 2252882 by Allan Bentham in Main branch]
granularity is all GBuffers, could be per texture but might not be worth the tracking
* disabled RenderTargetPoolEvents tracking for editor rendering to get a more readable output
[CL 2076060 by Martin Mittring in Main branch]
#ttp 331829 - Mobile Preview in Editor
#proj Engine
#branch UE4
#summary First pass of changes to remove GRHIFeatureLevel, allowing for multiple scenes with different feature levels to exist. First step towards dynamic mobile preview in the editor.
#change Added GMaxRHIFeature level which contains the highest supported feature level on this machine
#change Added a cvar "r.FeatureLevelPreview" which, when set to 1, enables a feature level selection in the quick settings menu. Not wired up to anything at the minute
#change Added a feature level variable to FScene, which is currently initialized to whatever GRHIFeatureLevel is. Accessed with GetFeatureLevel()
#change Added a helper accessor GetFeatureLevel() to FSceneView which gets the feature level from the relevant scene. Purely to reduce the amount of typing needed to get to a feature level
#change Many changes across the renderer to try and read the current feature level from the view or scene. Not everything is done yet, but this is almost all of the "easy" stuff. As there is still just a global feature level in the engine, nothing should change.
[CL 2066905 by Graeme Thornton in Main branch]
