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Here's a simple scene
which was quickly assembled and rendered in Bryce 5.
Bryce is now owned by DAZ. (http://www.daz3d.com)
It's a popular tool for creating scenic images, fantasy sunsets and
atmospheric impressions.
We're going to add some plants by way of post work in the foreground,
using PD Particle's particle brushes.
Save your rendering to a file, such as Jpeg. Or copy it to the
clipboard.
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In PD Particles, open
the
saved rendering.
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In the Particles tab,
click the Settings button and select one of the many presets, such as
Thorns.
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Draw one or a few brush
strokes to see the effect.
The color is a bit off. Too much green, given the sunset red conditions
all around.
We should try to tint the particles.
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Pick a color that is
close
to the general lighting conditions, such as a light yellow-orange. Or
use the color picker (I call it the turkey baster) to select a
reference color directly from the rendered image.
With that color selected as the primary color, we can use the Tint
option in the Particles panel.
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Click the checkbox to
enable tinting.
You might also want to remove the 'Shading', since this scene
doesn't really have a whole lot of sky lighting coming from above.
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A quick brush stroke
and
voila!
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Now it's time for more
fun. Change a few parameters, try different split angles, lifespans,
etc...
Here's one combination of parameters I liked.
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It took just about 2-3
minutes to finish this.
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Going beyond...
Whatever imaging program you're using, you'll probably want to further
improve the image and add some more drama to it. Filters can brighten
or darken, the whole or just some regions of the image.
PD Pro or PD Artist also offer filters like Sunset or Fog for further
accents.
Here are a few examples.
In the first, we darken the image to give some of the dynamic range to
the Sun's glare done with novas.
Some image editors call them stars, or lens flares. (with or without
reflections). PD Pro offers a number of such tools.

In the second, the sky is pushed into the background, and the land into
the
foreground, giving the image some more depth. This is because
cool colors appear to
recede and warm colors come to the foreground. The human eye's retina
is more sensitive to red
than to blue, and thus registers it as a stronger presence. Which in
turn registers to the brain as being closer.

But perhaps we didn't need a romatic sunset, perhaps we're witnessing
the
Sun gone Supernova.
Using PD Pro or PD Artist, we can apply some fx filters like Zoom blur
and bright Novae over
the rendered Sun to depict the photonic blast.
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