Deforum parameters are scoped to an animation mode — a parameter effective in one mode has no effect in another

Deforum runs in one of four animation modes (2D, 3D, Video Input, Interpolation), and each mode reads only its own operator set; parameters outside that set are simply ignored. 2D transforms the flat canvas (angle, zoom, translation_x/y); 3D adds depth warping and Z-axis motion (translation_z, rotation_3d_x/y/z, fov); Video Input ignores all motion parameters and diffuses each frame of a reference video; Interpolation ignores motion and blends only between prompt states. The common beginner error is setting a parameter that the current mode does not read (e.g. translation_z while in 2D) and seeing no effect — because the mode governs which operators are live.

Examples

In 2D mode, translation_z=5 does nothing because Z-motion is a 3D-only operator. Parameters like rotation_3d_x/y/z and fov_schedule only take effect when animation_mode=3D. Video Input ignores max_frames and follows the video’s own frame count.

Assessment

Describe what would happen if you set translation_z=5 in 2D mode, and explain why. Then name two parameters that only work in 3D mode.