Jeff Ol­son ex­plains an in­cred­i­bly busy shoot, draw­ing in el­e­ments of live ac­tion, py­rotech­nics, wa­ter and mod­els into CG

3D Artist - - THE HUB -

“the pyro team built up some can­nons and we fired them against a black back­ground be­cause the smoke and the fire looked re­ally good on that, you can ex­tract it and you don’t need a blue or a green.”

to pre­pare, it was mostly a mat­ter of talk­ing to the pyro team, hav­ing tried their many mix­tures of chem­i­cals to get the right look against the back­ground; the team shot at least 100 can­non balls. these were used later to paste in and com­pos­ite in to the film to line up with the mod­els that were built else­where dur­ing the bat­tle.

“It be­came a real com­bi­na­tion of prac­ti­cal work – the model shoots, as well as the com­posit­ing of tim­ing and stitch­ing it to­gether so it was seam­less. It was quite a project and quite well re­ceived I thought.”

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