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Mon 14 May 2012, 9:00

Dynamic Resolution Rendering Updated


Dynamic Resolution Rendering Updated

by Doug Binks

Introduction

This update to the Dynamic Resolution Rendering sample optimizes the temporal anti-aliasing (TAA) upscale pass and adds a few new features for improved qualitative comparisons focused on TAA. Readers new to Dynamic Resolution Rendering should read the original article here: http://software.intel.com/en-us/articles/dynamic-resolution-rendering-article/

Detailed Changes

The new sample includes the following changes, which are detailed in the sections that follow.

  1. Added optimization for temporal anti-aliasing (TAA) when using motion blur, which decreases the time this pass takes by approximately 40%.
  2. Corrected  the velocity scale factor so that if the pixel in the last frame was 1 pixel away it is attenuated by ½. Previously a constant scale factor was used, which was chosen for the default resolution.
  3. Added a zoom box for viewing scaled portions of the screen.
  4. Added a basic TAA mode that does no velocity scaling so any ghosting issues can be found.
  5. Improved pause mode that correctly renders the previous and current frames to show TAA artifacts clearly in basic mode.
  6. Added a motion blur toggle so that the effect of motion blur and TAA can be properly considered.
  7. Added a symmetric TAA toggle.
  8. Changed pause key from Space to P.
  9. ...
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