tailieunhanh - Essential LightWave 3D- P16

Essential LightWave 3D- P16: What you have in your hands is, quite simply, a collection of tools and techniques that many professional LightWave artists use every single day doing what we do in our various fields. The tools and techniques explored in this book are essential to creating the caliber of imagery that you see on film and television and in print and video games. | Chapter 17 Random Streaks are the fine numerous spiky streaks that help give the impression of something being painfully bright. The Reflections tab offers access to a multitude of settings to recreate the sun dogs that appear when light catches within the multiple layers of camera optics. figure 17-27 Random Streaks. I d suggest using this set- ting sparingly creating your own custom combinations of elements instead so this effect doesn t look canned. Let s go back to the fake volumetric light scene we were working on in the previous section of this chapter as shown in Figure 17-29. 1. Set the light s Parent to your shaft of light object and move it numerically to X 0 Y 0 Z 0. I ve changed my light from a distant light to a point light but this doesn t really matter. 2. Activate Lens Flare for the light and open the Lens Flare Options window. Deactivate Central Ring and Red Outer Glow. Activate Anamorphic Distortion and Anamorphic Streaks. Leave everything else as is. 3. An F9 gives you something you might see hovering over a rural landscape on The X-Files. See Figure 17-29. One of the best ways to use lens flares is to work them into your scene in such a way that the viewer isn t even aware that a lens flare is being used. Huh That s right When you have a flare that is just a Central Glow with a high Intensity and a fairly high Figure 17-28 The Reflections tab. Flare Dissolve the flare serves more to add a bit of light bloom to the entire scene giving the same feel that lights do when catching in a faint hint of haze. This faint hinting is indicative of the elusive quality of subtlety that runs through all I try to convey to an up-and-coming artist. Anyone can tell the difference when shown a render with and a render without but on its own it doesn t jump out at the viewer because it just looks good. 438 Layout 4 Special FX Figure 17-29 Lens flares aren t just for realistic works. The addition of two lens flares in the center of the work in Figure 17-30 makes the