Khi sử dụng kỹ thuật này, ống kính flare có màu sắc của ánh sáng. Trong trường hợp này tôi sử dụng đèn chiếu sáng với một màu sắc của 255, 0, 0 điểm. Một trong những điều tuyệt vời là cường độ ống kính flare là độc lập với cường độ ánh sáng. Vì vậy, bạn có thể biến cường độ ánh sáng và vẫn còn có một ống kính flare tuyệt vời. | Chapter 15 Figure Using lens flares. See color image. When using this technique the lens flare takes on the color of the light. In this case I used point lights with a color of 255 0 0. One of the great things is that the lens flare intensity is independent of the light intensity. So you can turn the light intensity off and still have a great lens flare. It is a very versatile little technique that can be used in innumerable ways. Picture street lamps as viewed from a helicopter. Or imagine how useful this effect might have been in the days of Blade Runner when a nighttime cityscape was composed mainly of bright point source lights just like this. This technique is by far the best use I have found for lens flares in LightWave. But you may very well find a place where you need a real lens-reflection type lens flare. Go ahead and use it. But remember as with all effects and techniques subtlety is usually the key to success. Recently I set up a scene with 15 lens flares interacting with five render passes of particles to create a magical effect. The lens flares were nothing more than drifting light sources floating around in space. One of the double-edged swords in LightWave is that the light sources themselves are not visible. This is good because it means you can place a light anywhere on the set including directly in front of the camera and not worry about seeing it. On the other hand when you want to see the light source you re out of luck. This is where lens flares come in handy. If you turn off all the rings streaks and whatnot you are left with a single intense point where the light s pivot point is. This is a great visible light source that is useful for all sorts of effects and situations. 192 Lens Flares My last piece of advice about lens flares is to use them sparingly and wisely. Overuse of this effect is a dead giveaway that the work is CG. You should now understand the use and purpose of lens flares in LightWave. Remember it is usually the creative
