really like this concept, did you use the depthmap for the glowing on the other tubes when one is lighting up?
I just copied the image. Then blurred the top layer. Used blend modus add and played with opacity.
No I did no tweaks when lighting the tubes. All the brightness is the results of light and reflection – nearly physical.
I think you are talking about is the glow moving from the middle of the tubes to the ends. All the tubes are crossed. So the middle is the brightest point and light begins to move along the tubes when fading it in and out.
@Markus Heilmann did also make renders of each individual light lamp? I thought you only made renders with them on and off and in different lights settings
What i dont get is the in the tutorial the light is indeed crossed with planes, but they cross over the complete length of the tubes. Still they glowup from the middle to the ends???