Rendering a perfect single frame is easier than rendering a series of frames in motion that look perfect, as earlier algorithms often resulted in visible transitions between different triangle counts.

Rendering objects at extreme close-up and far away distances requires generating the right amount of geometry to be indistinguishable from reality without excess.

The Nyquist limit states that to render a texture at a certain resolution, you never need more than twice the pixels than in the texture displayed on the screen.

One breakthrough in graphics was designing a pipeline that avoids the triangle rasterization hardware in GPUs, allowing for better results through pixel shader calculations and ray tracing.

The optimization of rendering in Unreal Engine was a significant challenge, focusing on reducing the cost of rendering pixels to improve performance.

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

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.

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.