Getting human faces right in computer graphics involves the interplay of numerous systems; if any aspect is incorrect, it can lead to an uncanny valley effect, making the representation feel off.

Rendering hair in computer graphics is complex because accurately simulating every strand would be computationally prohibitive; instead, approximations are used to capture the overall effect of hair.

If you render two triangles per pixel, the image can be indistinguishable from one rendered with thousands of triangles per pixel, but rendering less than that will show visible artifacts.

Creating realistic human faces in computer graphics requires advanced hardware and techniques, including high-resolution video capture and understanding the nuances of facial expressions and muscle movements.

The human eye's focus and attention mechanism determines how much detail should be shown in a scene, requiring high resolution for areas of focus while allowing less detail elsewhere.

The future of video generation is shifting towards creating high-quality, physics-based content, with significant advancements in the ability to generate realistic scenes and character consistency.

The realism in computer graphics comes from the collaboration of artists and technical artists who build environments, utilizing multiple technical features that work together to create stunning visuals.

Nanite technology in Unreal Engine minimizes visible transitions in geometry, making them statistically present but not perceptible to the viewer.

Humans are the most challenging aspect of computer graphics due to our evolved ability to detect patterns, faces, and emotions, which makes capturing realistic human representations difficult.