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Hi, I want to create the wall fade effect when framed by the camera, can anyone help me?
There are a few ways to do this. I will explain for blender but other apps can use a similar approach.
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.
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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.
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