Figure 5.

The VR displays used in Experiment 2. (a) In the occlusion condition, a brick wall occluded part of the flat, grass-textured ground surface. (b) In the homogeneous-texture condition, a continuous grass-textured field covered the flat ground surface. (c) An illustration (side view) of the general layout when measuring the judged target distance in the occlusion condition. The observer stood on the grass-textured field to view the test-target on the grass surface beyond the brick wall. The brick wall (0.5m × 1m) was always set halfway in between the observer and the test-target. To respond to the perceived distance, the observer turned around by 180° to view the grass-textured field and performed a distance-matching task.