What is shadow-less lighting and how would you accomplish it on an Church altar in a sanctuary?
Look for information on global illumination. I don't know how it's done in real life, we only do it in CG. But I assume the principle is the same. Photographers use global illumination frequently for product shots.
You need to pray for a solution. When the Good Lord shines righteous sunlight from his asshole your altar will be a spectacle. Glory be!
Why must theist cannibals always be so disagreeable? It is because I am a fanatical cannibal, devoted to my cult as bitterly as a Muslim suicide bomber. Cannibals like me must always go out of their way to be absolutely disagreeable but that is what we get for eating out on atheists. Sheer mindless folly. Pity us morons, as ours is the last crackpot cult on the planet, which of course is as humorless, ignorant, vulgar, and sick, as the Eat Agains, Jehovah's cannibals and the Gourmons.
You need a fixture with a very large surface area. Something like an array of 6 0r 8 4'x4' fluorescent fixtures nested tightly together. You may have to remove some of the tubes if the results are too bright
Set fire to the thing with gasoline.
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them