# dxgi.dll: If game uses its own dxgi.dll or other post-processor library, like
# Reshade (reshade.me), rename current "dxgi.dll" file to "dxgi_ori.dll" before copying
# dxgi.dll file from this VR Performance Toolkit. dxgi_ori.dll file will be lodaded
# through this toolkit automatically. For example, if you want to use Reshade, first
# install it, rename created "dxgi.dll" file to "dxgi_ori.dll", and then copy "dxgi.dll"
# from this toolkit. Reshade and VRPerfToolkit will work together. VRPerfToolkit will
# be aplied after Reshase.

# Upscaling: render the game at a lower resolution (thus saving performance),
# then upscale the image to the target resolution to regain some of the lost
# visual fidelity.
upscaling:
  # Enable (true) or disable (false) upscaling
  enabled: true

  # method to use for upscaling. Available options (all of them work on all GPUs):
  # - fsr (AMD FidelityFX Super Resolution)
  # - nis (NVIDIA Image Scaling)
  # - cas (AMD FidelityFX Contrast Adaptive Sharpening)
  method: nis

  # Control how much the render resolution is lowered. The renderScale is the percentage
  # used to scale resolution used by the GPU to render. For example, a value of 50 (50%)
  # means GPU will use half of pixels. This is same from how render scale works in SteamVR.
  renderScale: 80

  # Configure how much the image is sharpened during upscaling.
  # This parameter works differently for each of the upscaling methods, so you
  # will have to tweak it after you have chosen your preferred upscaling method.
  sharpness: 0.30

  # Performance optimization: only apply the (more expensive) upscaling method
  # to an inner area of the rendered image and use cheaper bilinear sampling on
  # the rest of the image. The radius parameter determines how large the area
  # with the more expensive upscaling is. Upscaling happens within a circle
  # centered at the projection centre of the eyes. You can use debugMode (below)
  # to visualize the size of the circle.
  # Note: to disable this optimization entirely, choose an arbitrary high value
  # (e.g. 100) for the radius.
  radius: 0.9

  # When enables, applies a MIP bias to texture sampling in the game. This will
  # make the game treat texture lookups as if it were rendering at the higher
  # target resolution, which can improve image quality a little bit. However,
  # it can also cause render artifacts in rare circumstances. So if you experience
  # issues, you may want to turn this off.
  applyMipBias: true

# Fixed foveated rendering (FFR): continue rendering the center of the image at full
# resolution, but drop the resolution when going to the edges of the image.
# There are four rings whose radii you can configure below. The inner ring/circle
# is the area that's rendered at full resolution and reaches from the center to innerRadius.
# The second ring reaches from innerRadius to midRadius and is rendered at half resolution.
# The third ring reaches from midRadius to outerRadius and is rendered at 1/4th resolution.
# The final fourth ring reaches from outerRadius to the edges of the image and is rendered
# at 1/16th resolution.
# Fixed foveated rendering is achieved with Variable Rate Shading. This technique is only
# available on NVIDIA RTX and GTX 16xx cards.
fixedFoveated:
  # Enable (true) or disable (false) fixed foveated rendering
  enabled: true

  # Dynamic: FFR is applied only when needed to try to maintain at least target FPS
  dynamic: false
  # Target FPS:
  targetFPS: 60.0
  # FPS to start recovering decrasing radius.
  marginFPS: 65.0
  # Change default dynamic behaviur: FFR is always enabled but dynamic mode changes radius dinamically
  dynamicChangeRadius: false
  # Minimal radius: This is the minimal radius applied to innerRadius when dynamic is enabled
  minRadius: 0.30
  # Decreased radius amount applied for each frametime check when needed
  decreaseRadiusStep: 0.01
  # Increased radius amount applied for each frametime check when needed
  increaseRadiusStep: 0.03

  # Configure the end of the inner circle, which is the area that will be rendered at full resolution
  innerRadius: 0.50
  # Configure the end of the second ring, which will be rendered at half resolution
  midRadius: 0.65
  # Configure the end of the third ring, which will be rendered at 1/4th resolution
  outerRadius: 0.80
  # The remainder of the image will be rendered at 1/16th resolution

  # Only applies FFR to target renders that matches equal resolution than final render.
  # Some games requires to disable it.
  preciseResolution: true

  # FFR will not be applied to first specified target renders. Some games needs to skip
  # some target renders to avoid crashes. This is different from HRM option.
  ignoreFirstTargetRenders: 30

  # When reducing resolution, prefer to keep horizontal (true) or vertical (false) resolution?
  favorHorizontal: true

  # When applying fixed foveated rendering, vrperfkit will do its best to guess when the game
  # is rendering which eye to apply a proper foveation mask.
  # However, for some games the default guess may be wrong. In such instances, you can uncomment
  # and use the following option to change the order of rendering.
  # Use letters L (left), R (right) or S (skip) to mark the order in which the game renders to the
  # left or right eye, or skip a render target entirely.
  #overrideSingleEyeOrder: LRLRLR

  # Fast mode: When game renders each eye separatelly, enabling this will save a bit of performance,
  # But overrideSingleEyeOrder will be ignored.
  fastMode: true

# Hidden radial mask (HRM) applies a render mask to avoid GPU rendering hidden pixel that are not visible
# in the headset and gain some performance without any disvantage. Not all games are compatible.
hiddenMask:
  # Enable (true) or disable (false) hidden radial mask.
  enabled: false

  # Dynamic: HRM is applied only when needed to try to maintain at least target FPS
  dynamic: false
  # Target FPS:
  targetFPS: 55.0
  # FPS to start recovering decrasing radius.
  marginFPS: 60.0
  # Change default dynamic behaviur: HRM is always enabled but dynamic mode changes radius dinamically
  dynamicChangeRadius: false
  # Minimal radius: This is the minimal radius applied when dynamic is enabled
  minRadius: 0.85
  # Decreased radius amount applied for each frametime check when needed
  decreaseRadiusStep: 0.01
  # Increased radius amount applied for each frametime check when needed
  increaseRadiusStep: 0.03

  # Radius
  radius: 1.15

  # Only applies HRM to target renders that matches equal resolution than final render.
  # Some games requires to disable it.
  preciseResolution: true

  # HRM will not be applied to first specified target renders. Some games needs to skip
  # some target renders to avoid crashes. This is different from FFR option.
  ignoreFirstTargetRenders: 0

# Game Mode
# Some game need a special mode:
# - auto (Default)
# - single (A single rendered image contains both eyes)
# - left (Each eye is rendered separatelly, and left eye is rendered first)
# - right (Each eye is rendered separatelly, and right eye is rendered first)
gameMode: left

# This controls how many frames must be generated to measure frametime when dynamic mode is used
# with FFR and/or HRM. 
dynamicFramesCheck: 3

# Enabling debugMode will visualize the radius to which upscaling is applied (see above).
# It will also output additional log messages and regularly report how much GPU frame time
# the post-processing costs.
debugMode: false

# Hotkeys allow you to modify certain settings of the mod on the fly, which is useful
# for direct comparsions inside the headset. Note that any changes you make via hotkeys
# are not currently persisted in the config file and will reset to the values in the
# config file when you next launch the game.
hotkeys:
  # Enable or disable hotkeys; if they cause conflicts with ingame hotkeys, you can either
  # configure them to different keys or just turn them off
  enabled: false
  
  # Toggles debugMode
  toggleDebugMode: ["ctrl", "f1"]
  # Cycle through the available upscaling methods
  cycleUpscalingMethod: ["ctrl", "f2"]
  # Increase the upscaling circle's radius (see above) by 0.05
  increaseUpscalingRadius: ["ctrl", "f3"]
  # Decrease the upscaling circle's radius (see above) by 0.05
  decreaseUpscalingRadius: ["ctrl", "f4"]
  # Increase the upscaling sharpness (see above) by 0.05
  increaseUpscalingSharpness: ["ctrl", "f5"]
  # Decrease the upscaling sharpness (see above) by 0.05
  decreaseUpscalingSharpness: ["ctrl", "f6"]
  # Toggle the application of MIP bias (see above)
  toggleUpscalingApplyMipBias: ["ctrl", "f7"]
  # Increase the hidden radial mask circle's radius (see above) by 0.05
  increaseHiddenMaskRadius: ["ctrl", "f8"]
  # Decrease the hidden radial mask circle's radius (see above) by 0.05
  decreaseHiddenMaskRadius: ["ctrl", "f9"]
  # Toggle fixed foveated rendering
  toggleFixedFoveated: ["alt", "f1"]
  # Toggle if you want to prefer horizontal or vertical resolution
  toggleFFRFavorHorizontal: ["alt", "f2"]