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Nice and smooth camera/mouse wheel effect

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    Hello everybody,

    I surfed on the web and found this website dedicated to 3D WebGL :

    What do you think about this nice mouse wheel scroll effect coupled with a bottom screen progress bar, personnaly I think it’s pretty well presented. Is it possible (simple?) with verge3D to play animation’s frames with scroll events ?

    cordially !

    Yuri KovelenovYuri Kovelenov


    We haven’t exposed the deltaY property in the get event property puzzle but it will be there in the next Verge3D update. :)

    3D Verger, the CEO
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    Hi Yuri,
    deltaY property ? …it sounds complicated ;-)
    In this demo, I am especially impressed by the smooth transition between camera key frames when the user scroll. It’s a good thing for V3D that you expect this kind of features/effect in the next update ;-)


    Hey brice,
    It’s actually pretty simple, see my post and puzzle screen shot here.

    I created a simple 240 frame camera animation (with keyframe every 40 frames) and gave the user the option to activate each of the 6 segments of the animation forward or backwards depending on scrolling up or down. Basically vey similar to the example you posted.

    I also put an option box where you can change things a bit to where you your scroll wheel will move through the animation frame by frame.


    Observations: the default option, scrolling to activate different segments of animation (I had a keyframe every 40 frames) plays rather choppy the first time through but then gets smoother second time around. I remember reading an old thread about ‘prerendering’ onload so the animation plays smoother first time through. Anyone familiar with this please provide your input.

    The second option, scrolling through 1 frame at a time, has very jerky playback.
    I think now the reason for that might be how I setup the animation (i am not very good at blender or animations in general). I added a ‘track to’ camera constraint (fyi, the camera mode was set to no-controls) to an empty to help keep the camera looking in a general direction as moved it through the scene dropping the occasion keyframe every 40 frames. I never removed the track to constraint. I would imagine that was causing some of the jerky movement. I will create another example but this time ‘bake’ the animation and remove all constraints before exporting.

    source puzzles attached

    You must be logged in to view attached files.

    Hello Crunch,

    I´m since some month Blender user and also Verge3D….

    I have actual a camera animation in Blender 2.82.. BUT I am not able to
    transfer and build it up in Verge3D :-(

    If I send you the file.. is it possibe that you support me with this issue ?

    I hope the best on your answer ..

    Best regards,

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