Add a third and fourth Glow, doubling the Radius each time (100, 200, 400).
This is the classic professional workaround. Instead of one glow, you use several.
Alternatively, if you meant something else — like a technical guide, a comparison paper, or a student assignment — please clarify.
If you don't want to build it manually, several developers offer high-end glow tools for free:
Adobe added to After Effects recently. It was designed for 360 video, but it works in 2D and offers a much smoother, softer falloff than the standard Glow effect.
Lower the Intensity of the larger glows so they don't wash out the screen.
Curves effect after your glow to crush the blacks and boost the alpha channel, making the glow appear punchier and "deeper". YouTube +6 💡 Key Features of Deep Glow Motion designers prefer this plugin over the default After Effects glow because of its specific technical advantages: Inverse Square Falloff: Mimics how light actually travels in the physical world, creating a natural spread. GPU Acceleration: Renders much faster than stacking multiple standard glow effects. HDR Thresholding: Allows you to isolate only the brightest parts of your footage to emit light. Gamma Correction: Automatically ensures the glow remains linear even if your project is not set to a linear workspace. Chromatic Aberration: Includes built-in tools to add slight color fringing at the edges of the glow for a more vintage, "filmic" feel. YouTube +2 🚀 How to Use Deep Glow (Paid or Trial) Once installed in your