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wall fade effect

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  • This topic has 2 replies, 3 voices, and was last updated 2 months ago by kdv.
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  • #58424
    cralex75
    Participant

    Hi, I want to create the wall fade effect when framed by the camera, can anyone help me?
    https://cdn.weshape3d.com/km001/1008/web/index.html

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    #58427
    xeon
    Customer

    There are a few ways to do this. I will explain for blender but other apps can use a similar approach.

    Option 1
    Add a transparent shader to your base shader via a mixshader node. Add a value node to the factor input of the mix shader. Animate the factor value.

    Option 2: create two wall objects. Wall A will have an opaque blend mode and wall B has an alpha blend -blend mode. Animate the alpha value of wall B.

    Programming for option 2: 10 frame fade.
    At frame 0 wall A is visible, wall B is hidden. Frame 1 wall A is hidden and Wall B is shown. Animate alpha on wall B to 0 at frame 10.

    The above should be in a procedure you can call when the camera rotation value crosses thresholds that define when you want the wall to fade in and out.

    Xeon
    Route 66 Digital
    Interactive Solutions - https://www.r66d.com

    #58428
    kdv
    Participant

    it’s not a trivial task to make it with the Verge3D engine. The alpha blending with multiple objects is a capricious thing. but it’s possible. and it costs a lot.
    https://v3d.net/cr5

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