Construct 3 r365

Notes

We're continuing to focus on stability while we work towards a new stable release in the next couple of weeks. One of the main changes in this release is to the Alpha clamp effect. It turns out that due to a mistake in the calculation it does, it's actually been processing the wrong effect since its introduction in 2014! This presents a tricky backwards-compatibility problem, as there could be thousands of projects that are designed to use the effect as it is. To solve this we've renamed the old Alpha clamp effect to Alpha cutoff, and kept it working the same, so existing projects will keep working as they are. Then we've introduced a whole new effect called Alpha clamp to replace the old one, which works correctly - so new uses of the Alpha clamp have the correct effect. We take backwards compatibility very seriously and this shows the care we take to ensure we don't break anyone's projects, even when they are technically affected by a bug.

Separately we've also introduced a new Alpha ramp effect. This is similar to Alpha clamp, except it allows having soft edges, as the alpha ais ramped down instead of abruptly changed.

Finally there's a batch of bug fixes, including more updates to ensure the WebGPU renderer is working as well as the existing WebGL renderer. WebGPU support is due to arrive on Chrome for Android soon, so browser support is gradually increasing, and in future we hope to make WebGPU the new default.