Nonlinear animation regulation and control method and system based on three-dimensional engine

The invention relates to the technical field of animation processing, in particular to a nonlinear animation regulation and control method and system based on a three-dimensional engine, and the specific scheme comprises the following steps: determining an animation segment needing to be regulated and controlled in an animation, and determining an initial state and an end state of attribute change in the animation segment; determining the position and the number of key frames to be regulated and controlled based on the initial state and the end state of the attribute change; defining the curve shape of each key frame switching speed curve according to the determined key frame position and number; calculating to obtain an animation progress; calculating the animation change attribute of the current progress time point according to the animation progress and the key frame switching speed curve; and updating the animation state according to the obtained animation change attribute of the current progress time poi