Specular Highlight Roll-Off
Compare how your display renders near-peak white luminance. Look closely at the center reticle target inside each square. If a reticle disappears into solid white, your display is hard-clipping highlights instead of smoothly tone-mapping near-peak luminance.
All 4 Reticles VisibleExcellent tone-mapping; highlight textures are preserved up to peak white.
Reticle 4 Blown OutTypical SDR/standard clipping; top 2% peak white clips to pure white.
Reticles 3 & 4 InvisibleSevere highlight clipping; monitor contrast is set too high or HDR tone-mapping is off.