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Author Topic:  this height field thing  (Read 4893 times)

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Offline hobold

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Re: this height field thing
« Reply #105 on: November 20, 2020, 10:21:33 PM »
Wedge Forest

Offline hobold

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Re: this height field thing
« Reply #106 on: November 23, 2020, 02:56:18 PM »
Brick Suburbia

Offline hobold

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Re: this height field thing
« Reply #107 on: December 14, 2020, 09:23:30 PM »
Crimson? Scarlett? Ketchup? Movie blood? Just call it red.

(Tinkering with materials and palette evolution.)

Offline hobold

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Re: this height field thing
« Reply #108 on: December 29, 2020, 04:43:03 PM »
Swamp Blossom.

Global illumination is slow. And so subtle. Horribly slow, did I mention? Especially for animations. Where the viewer doesn't really have time to see much of a difference.

But it does look good. Makes things appear more tangible.

Offline Sabine62

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Re: this height field thing
« Reply #109 on: December 29, 2020, 06:29:29 PM »
Really nice!  :thumbs:
Wouldn't it be wonderful if you could get some (pseudo-)shadows for these images too? Then the 3D-effect would be mind-blowing.
To thine own self be true

Offline hobold

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Re: this height field thing
« Reply #110 on: December 29, 2020, 07:18:23 PM »
There actually are shadows in there, but they don't have hard edges. The shadows are further de-emphasized by the fact that thin poles don't cast much of a shadow anyway (technically speaking, there is a large penumbra, but it isn't darkened much). The whole sky is a light source, and one or two thin needles don't occlude much of it.

You can see shadows occasionally where two larger bubbles are close do each other. And, of course, in the undergrowth of a briar patch.

Let me retroactively add another disadvantage to advanced illumination: it makes long thin shadows disappear :) . So yes, there is definitely room for improvement, and I am not done learning more about creating imagery.

Offline hobold

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Re: this height field thing
« Reply #111 on: January 09, 2021, 12:14:21 AM »
Here is an example where, near the spiral center, shadows are rather visible. They don't have pronounced edges or high contrast.


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