CompuServe Thread

Hi Paolo, << lighting utility.. >> See the following.. File Info for LTUTIL.ZIP Section: IPAS Usage Contributor: 76330,3402 Size: 41788 Submitted: 6/2/94 Type: Binary Accesses: 678 Title: IPAS Lighting Utilities Keys: IPAS LIGHTING UTILITY ARRAY STYLE DELETE This is a shareware IPAS3 PXP to implement the concepts of Light Styles, Light Arrays, and Light Delete by Name. Written by Mark Meier.

Paolo, Schreiber Instruments sells a set of IPAS routines called "Imagine FX". There are 7 routines and one of them of is "lightning" – it's quite good. To contact them in Europe: Schreiber Europe, Fordbrook Business Center, Marlborough Road, Pewsey, Wiltshire, UK tel: 44 (0) 672 62040 fax: 44 (0) 672 63001

/* I' TRIYNG TO MAKE AN ANIMATED LIGHTNING SCENE BUT CAN'T GET A GOOD RESULT; I WAS TRIYNG WITH MATERIAL MORPHINGS (FROM INVISIBEL TO A WHITE SELF ILUMINATET MATERIAL) within a few frames. AS I CAN'T GET A SADISFIYNG RESULT I WAS WUNDERING IF THER IS AN IPAS TO DO THIS? OR DO YOU KNOW A GOOD WAY TO SOLVE THIS PROBLEM? */ Note #1: turn your CAPS LOCK button off. Caputalized messages usually indicated yelling. Note #2: I've seen some very effective lighting achieved by rendering (under the non-lightening) the entire scene, and then going back to certain frames in the rendering and doing single frame rendering with a spotlight that is blindingly bright (or even an omni light, although well-pronounced shadows really makes the effect come alive). I generate tons of single frames as TGA files before the actual compile into a movie, and swapping out like this a few "bright" frames is very quick. You could also keyframe certain spots at very high brightness if you wanted to do the whole thing in one shot. -dave