020 - Lens Flares

020 - Lens Flares

Update: 2025-06-03
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This podcast episode features VFX artist John Knoll and animator Shannon Tindle, alongside hosts Rob Braito and Todd Vasiri. The discussion begins with listener questions about the complexities of 3D tracking, particularly shots filmed from moving vehicles, emphasizing the separate tracking and compositing processes involved. The conversation then delves into the advancements in photorealism in CG, highlighting how higher-quality previews improve the animation workflow. John Knoll shares a personal anecdote about receiving a rejection letter from ILM early in his career, underscoring the importance of persistence. A significant portion of the episode is dedicated to lens flares, exploring their history, from being considered flaws to becoming stylistic choices. The discussion covers different lens types (spherical vs. anamorphic), the creation of realistic flares in VFX, and favorite lens flare examples from various films. The episode concludes with "martini time," where the guests share book, show, and app recommendations before wrapping up the season.

Outlines

00:00:24
Podcast Introduction and Guest Introductions & Mailbag Questions: 3D Tracking and Photorealism

The podcast introduces hosts Rob Braito, Todd Vasiri, and producer Jenny Ely, welcoming guests John Knoll and Shannon Tindle. Listener questions address the complexities of 3D tracking in moving vehicles and the increasing photorealism in CG previews.

00:11:31
John Knoll's Career Journey and Lens Flare Deep Dive

John Knoll recounts his rejection from ILM and subsequent hiring. The discussion transitions to a detailed exploration of lens flares, their history, techniques, and use in visual effects, including different lens types and the challenges of creating realistic flares.

00:53:40
Martini Time: Recommendations and Season Wrap-up

The guests share their favorite books, shows, and apps, expressing gratitude to listeners and Industrial Light & Magic for their support, concluding the season.

Keywords

Lens Flare


The optical effect created by light reflecting and refracting within a camera lens, resulting in bright, often colorful streaks and rings. Historically considered a flaw, now a stylistic choice in filmmaking.

Anamorphic Lens


A type of camera lens that compresses the image horizontally during filming, resulting in a wider field of view. Produces distinct lens flare characteristics different from spherical lenses.

Photorealism (in CG)


The degree to which computer-generated imagery resembles real-world photography. Advances in technology allow animators to see higher-resolution previews, improving workflow and decision-making.

3D Tracking


The process of analyzing footage to determine the camera's movement and orientation in 3D space. Crucial for integrating CG elements seamlessly into live-action shots.

Visual Effects (VFX)


The process of creating or enhancing imagery in film using computer graphics or other techniques. Lens flares are often used as a stylistic element in VFX shots.

John Knoll


Legendary visual effects artist known for his work at Industrial Light & Magic (ILM).

Shannon Tindle


Award-winning animator and filmmaker.

Industrial Light & Magic (ILM)


Leading visual effects company known for its work on numerous blockbuster films.

Q&A

  • What are the challenges of 3D tracking shots filmed from inside a moving car?

    Tracking the camera's movement relative to both the car's interior and the external environment requires separate tracking processes. Compositing elements beyond the windshield adds further complexity.

  • How has the level of photorealism in CG animation previews changed over time, and how does this impact the animation workflow?

    Animators now have access to much higher-quality previews, closer to the final render, thanks to advancements in computing power. This allows for better-informed decisions during the animation process.

  • What are some of the stylistic choices involved in using lens flares in filmmaking?

    The use of lens flares has evolved from being considered a mistake to a deliberate stylistic choice. Directors and cinematographers may choose to embrace lens flares to enhance the mood, create a specific look, or even disorient the viewer. The choice depends on the overall narrative and style of the film.

Show Notes

In the final episode of season one, Shannon Tindle and John Knoll return to Lighter Darker to discuss the much debated use of lens flares in film and animation. John talks about rejection and how to know when a project isn’t right for you. Our hosts and guests share some of their favorite lens flares and how to use the technique correctly (and incorrectly).


Chapter Markers


[00:00:00 ] Intro


[00:02:42 ] Questions from the Mailbag


[00:11:29 ] Rejection Letters


[00:17:47 ] Lens Flare Extravaganza


[00:53:39 ] The Martini


[01:00:28 ] Outro




Episode Links



The Martini


Todd: Hits, Flops, and Other Illusions, by Edward Zwick


John: Portrait Artist of the Year


Jenny: Batman Resurrection


Shannon: 


LA Taco


Colorware


Rob:


1Password


Apple Passwords




Follow Us


ilm.com | YouTube | Instagram | Threads | X | Facebook | LinkedIn 


Rob Bredow.com or on Instagram


Todd Vaziri


Jenny Ely on Instagram


Email us at lighterdarker@ilm.com


https://www.ilm.com/transcripts/020-lens-flares-with-john-knoll-and-shannon-tindle/

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020 - Lens Flares

020 - Lens Flares

Industrial Light & Magic