How to create smooth transition between two values

Game Engine Game Engine Support and Discussion
1

I want to achieve a smooth transition between two values, but it seems very complicated to me.
Something like that in the image, help me, please.

800×600

2

from pos1 to pos2, for example move a camera(or object) so that it’s smooth?

    target =  own.scene.objects[own['target_hook']] 
    factor = 0.1 #0.01-1.0
    
    #pos1 - pos2
    pdif = own.worldPosition - target.worldPosition
    #calculated pdif * speed
    pos_dif = pdif * factor
    
    #if pos is not the new calculated position
    if own.worldPosition != target.worldPosition:
        
        #added every frame so it moves to the right position
        own.worldPosition -= pos_dif

a cam demo setup:(upbge)
smooth camera movement.blend (526.5 KB)

3

I already know this method, but it is not what I need. this method creates a transition curve as in the image:

curve

I want to smooth the transition in and out (start slowly, accelerate and end slowly again), as in this other image:

curve 2

4

these are curve formulas, what i recommend is starting with a linear transition, and apply a multiplier based on the timer percent (fac = current/end). things like sine can be used to modify fac to push the current value up or down.

5

This function seems made fore it, but might be overkill for your purposes?
6

Tada! Here is a .blend gift, hope you can use it! Ø__^

Smoothstep_Func_01.blend (531.8 KB)

2 Likes
7

Perfect, thank’s!!!