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main page fx meteor crash [ANSWER]

Posted: Fri, 22nd Sep 2006, 2:08am

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RigomrtsFX

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hi
how was that done meteor crash fx
is that one fx or 2 thats so cool
thanks
Posted: Fri, 22nd Sep 2006, 5:25am

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Axeman

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SuperUser

Go to the VisionLab product page, scroll down to the Proffessional Compositing Toolkit section, and click the animation video button with the meteor. It gives you a bit of a breakdown of the elements that went into the shot.
Posted: Fri, 22nd Sep 2006, 5:58am

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RigomrtsFX

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thank you
Posted: Fri, 22nd Sep 2006, 8:09am

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Cogz

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Basically it was done using a mixture of CG particle effects and stock footage.
Posted: Fri, 22nd Sep 2006, 8:17am

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Simon K Jones

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Rating: +2

As Axeman says, check out the full clip on the Vlab page.

Here's a quick breakdown:

Background - just a simple still image of the forest/field/mountains. Bought from a stock image website.

Meteor 'head' - this consisted of two separate pieces of fire stock footage that were warped, rotated and animated together. Given the extreme trajectory of the meteor, it was a bit tricky to animate as it happens so fast. An angle blur was applied to give it a good amount of motion blur.

Explosion - the impact explosion is simply a bunch of flame stock footage composited carefully behind the trees using an intricate mask.

Impact debris - the dirt spraying up from the impact was created using the particle engine, using small bitty textures and a wide emitter angle and heavy gravity.

Cloud - this was created with the particle engine. It's a very dense, shifting rectangle emitter with conflicting emitter angle and gravity to create that turbulent appearance. It was masked to go slightly behind the closest mountain to create a feeling of depth.

Smoke trail - this was a rectangle emitter particle effect that was then given a high-feathered mask to cut it down to the correct shape. The mask was then enlarged and feathered more to enhance the dissipating of the trail.

Cloud hole - the dark spot in the cloud that appears just before the meteor was created using a grade object placed over that spot and darkened down (with the gamma filter I think).

Impact crater - This was another grade object designed to darken the ground and give it a 'burnt' appearance. Two masks were applied at different transparencies, resulting in the dark inner 'hole' and the outer ring area.

Finally a grade object was applied to the whole effect to grade it all a red, ominous tone to match the lighting coming from the boiling, red cloud.