![]() So, you may need to test different filtering methods to find the best one for your case. With Blur exponential, however, you can zoom quite a lot and still get good shadows: Here's for example what it looks like when you don't set a filtering method:Įven when using a filtering method, you could still be able to see the patterns if zooming too much (filtering=PCF): This pattern can be visible, depending on your objects (being zoomed or not) and/or on the filtering method used. It works by generating some dithering patterns in the shadow map, based on the alpha value of the fragment. To do this, you need to set the enableSoftTransparentShadow property to true on the shadow generator: Starting with Babylonjs v4.2, you can simulate soft transparent shadows for transparent objects. The following link gives you a good appreciation of the softening of shadows as the shadow caster moves further away from the object receiving the shadow: Distance Shadow Softening Example Transparent objects / shadowsįor transparent objects to cast shadows, you must set the transparencyShadow property to true on the shadow generator: ![]() You can also play with the following parameter contactHardeningLightSizeUVRatio in order to change how fast the shadow softens (between 0 and 1).In order to get accurate result you will need to define additional parameters: In PCSS, the shadows will get softer when they are further away from the object casting them, simulating what happens in real life. Like PCF, they will automatically fallback to Poisson Sampling if the code is running on a WebGL 1 platform. PCSS could be seen as an improved version of PCF but despite looking better they are also more processor expensive and should be reserved for desktop applications. Starting with Babylon.js 3.2, contact hardening shadows based on PCSS shadows was introduced. QUALITY_LOW Contact hardening shadow (Webgl2 only) You must ensure that the light is as close as possible to the shadow casters.The smaller the range is, the better the shadow will be. You must provide the smallest range of depth values from your light by setting light.shadowMinZ and light.shadowMaxZ.With CESM, you can get accurate self-shadowing but you will need to define additional parameters: Starting with Babylon.js 3.0, we introduced a new way of doing exponential shadow map to deal with self-shadowing issues: The Close Exponential Shadow Map (CESM). Here is an example of blurred shadows: Blurred Shadow Example Close exponential shadow map You can control the kernel size with shadowGenerator.blurKernel, which default value is 1. While a bit more expensive, the quality of the shadow is far better with kernel blur. eKernelBlur: You can decide to use kernel blur instead of box blur.By default, the value is 1 (Meaning the box will go from -1 to 1 in both directions resulting in 9 values read by the blur postprocess). shadowGenerator.blurBoxOffset: Define the offset of the box's edge used to apply the blur.shadowGenerator.blurScale: Define the scale used to downscale the shadow map before applying the blur postprocess.The quality of the blur is defined by the following properties: This is the better soften shadow filter but the slower as well. iframe-wrapper would give me the best of both worlds.ShadowGenerator. Somewhat unexpectedly, I discovered that keeping the clip-path on the iframe and applying border-radius and box-shadow to. ![]() a shadow that respects an inner element's contour? Now, where could I go from there? How could I simulate a filter: drop-shadow(), i.e. So, unfortunately, our approach #2 also = ❌ I still don't understand exactly what the issue was here but indeed it seems that in Safari drop-shadow is not applied correctly on first load. Notice, upon switching to the calendar and back the weird square box shadow disappears and the desired drop shadow comes in: See the following gif for an example of this behavior (again, if the quality isn't good enough you can open the codepen in Safari and replace the styles with those above). ![]() Conversely on mobile it would disappear once I interacted with the page □ switching applications or interacting with something in dev tools). To make things even more strange, on non-touch screen devices this weird extra box shadow would disappear and the correct drop-shadow would appear as soon as Safari lost focus (e.g. See the following screenshot for an example (if the quality isn't good enough you can open the codepen in Safari and replace the styles with those above): what I saw on the screen was a shadow being applied to the player that looked as if I had set a box-shadow on. I opened up Safari and expected to see the same. This looked great in Chrome and Firefox! The jagged corners that were previously being generated by border-radius were gone and in their place was nothing but wonderful smoothness. Enter fullscreen mode Exit fullscreen mode ![]()
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