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How to change distortion (lensEffect) dinamically?


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I'm playing with lens effects through this example:

var lensEffect = new BABYLON.LensRenderingPipeline('lens', {
                        edge_blur: 1.0,
                        chromatic_aberration: 1.0,
                        distortion: 0.5,
                        dof_focus_distance: 100,
                        dof_aperture: 1.0,      
                        grain_amount: 1.0,
                        dof_pentagon: false,
                        dof_gain: 1.0,
                        dof_threshold: 1.0,
                        dof_darken: 0
                    }, scene, 1.0, camera);

And now I want to change only distortion with a slider that calls a function like this:

function adjust_distortion(value){
                lensEffect = new BABYLON.LensRenderingPipeline('lens', {
                }, scene, 1.0, camera);

But the distortion increases even if I change the slider to a zero value. Can anybody show me a sample to achieve it with the dynamic "value"?


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Thanks Delta, I saw in 75 line: camera.radius = 400 + (-150 + 150 * Math.sin(time / 10));

Which works to move the camera near and far according to a math formula but I must keep the camera with a static radius from object, Or am I missing something?

Please help

btw, beautiful playground.

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