NewTek HyperVoxels 2.0 Manual page 41

We can use this option because we added the HyperVoxels_Doubler plug-in during the set-up steps. This allows the
HyperVoxels to render every other pixel and then "smart process" the gaps.
2. Set LightWave's camera resolution to Low Res. Choose the animation saver of your choice and render the animation. Go have a sandwich.
Once the animation is rendered, play it back. You will notice that the billowing effect seems to happen a little to fast. This effect
is actually a looping effect and if it loops to fast you will notice the repetition. In some cases, this is desirable; however, this is
not one of those cases!
Modifying the effect
1. On the Volumetric - Advanced tab, to the right of the Effect pop-up menu is the Effect Parameter input field. This parameter adjusts the loop
length in seconds. Since we want to slow down the billowing effect increase the loop length to 1.5. This will set up a nice slow billowing effect
as the explosion grows. Render the animation again (yeah, go get another sandwich) and take a look at the difference changing the speed
can make.
The next thing we want to do is change the look of the effect to be less of a dark smoke cloud and accentuate the fiery nature of
the effect. To do this we will only need to adjust 3 values; scale, gain and bias.
2. Move the Layout time slider to frame 15 or 16. This will show us a good representation of our effect.
3. Open the HyperVoxels panel and make a preview. Now change the Scale (Volumetric - Basic tab) to 75% and refresh the preview.
You will immediately notice that the effect has become more regular across the entire cloud.
Note
Frequencies is set to 0. This special setting maximizes detail and render speeds. As the effect grows larger or closer, the number of
frequencies is automatically adjusted.
4. Let's add a bit more contrast for the color. There is currently a gradient setting for the color channel that changes the surface color from grey
to yellow to orange based on the Local Density (Local Density is the density value of the fractal pattern). Click on the P button for Color and
adjust the first color from grey to black (i.e., RGB = 0, 0, 0).
This will give the cloud a rich dark value where there is a low density fractal pattern. Generally this will be at the edges where
the fire should be converting to smoke.To create more burning on the inside we will adjust the Gain and Bias settings to
influence the peaks and valleys of the texture.
5. Change the Gain parameter to different settings and refresh the preview. Experiment now to see many variations you can create with only
this one setting. Once you have tried various values, set the value to 34 and refresh the preview. This setting will give the cloud a nice hot
appearance by slightly decreasing the peak of the texture.
HyperVoxels 2.0
4.5