Glowing Bbs

[Justina Ky]

Iam having a similar issue where some white surfaces, particularly curved ones, appear to give off their own glow despite not being an emissive surface. For example, the WC in the attached image as well as the inside of the sink. Any help would be appreciated. Thanks.

You can make sure that walls around the bathroom are not "too thin" and actually have a certain thickness. That usually helps with light leaking - Also if that makes no difference, does it have a positive effect on the scene if you simply set the time of day to night? On top of that you can also try reducing the "Ambient Brightness" in the Atmosphere tab of our Visual Settings.

When I set the settings to night time, the room is almost entirely black. I have initially being trying to render the room with a section cut through the model to achieve a better angle, so while the section cut is active the room is technically exposed to the outside atmosphere, but even turning off the section cut and enclosing the windowless room entirely, the view is entirely black when turning settings to night. I have attached an export with these settings.

Reducing the ambient brightness is having the effect of making the room slightly darker, but even in the darker room, the curved surface of the WC and the interior of the sink are still glowing brighter than other areas of the room. I have attached another exported view showing this effect.

TobyS-HBI , I really would suggest to mainly rely on light-sources (besides the sun) when you set the time of day to night and are doing interior scenes - It just seems that the brightness of them seems to not be turned up yet, or you haven't added any dedicated light-sources which I'd guess. Please try doing so as our light-assets do not emit light themselves.

Yes, you're right, I have been mainly relying on the auto brightness that applies when no lights are added, but adding lights and setting the time to night is resolving the issue. However, inserting lights into all my interior scenes is quite a lot extra work so I'd much prefer to be able to rely on the automatic brightness/exposure that applies without the glitchy glowing objects appearing.

I've noticed now in this view, but also in other scenes in the past, that where I've put in mirrors the reflections are showing lighting effects quite differently to how they appear in the general room. For example in the attached image, I've added some spots as well as a rectangular lighting plane to the ceiling for more even lighting, which achieves the desired effect in the main space but in the mirror's reflection I have a very visible white rectangle? Any pointers? Or should I create an alternative thread for that issue?

Since the final image is a composite it is important that the camera remain stationary between shots. A tripod or mounting system that allows you to get close to the ground is ideal. That said, for some shots like this I have propped the camera up directly on the ground and used a cable release or the OI Share app to prevent camera movement.

To illuminate the underside of the mushroom cap you will need a small light. A head lamp, flashlight, or any small LED light should work. For this image I used a small string of battery-operated LED lights. Finally, to put it all together you will need some post-processing software. The initial edits were done using Adobe Lightroom Classic and the compositing was completed in Photoshop.

Add a layer mask to each layer except for the bottom one. In the simplified example below, you will see three layers with the top two having layer masks (the white rectangle). By using a black brush on the mask, you reveal parts of the layer below. Make sure the layer mask is selected and brush away part of the top layer to reveal the lighted area of the mushroom below. You will need to repeat this with the second layer in order to reveal the other glowing parts of the mushrooms. You will notice that I also masked out some of the area at the base of the mushroom to make it appear as if the mushroom lamp was casting a glow on the ground. As you are masking, note that you can change the opacity of the brush so that you can mask out more gradually and therefore have more control over your end result. As well, if you have brushed away too much of a layer, switch from black to white and paint it back in.

Cold, flu and COVID-19 season brings that now-familiar ritual: swab, wait, look at the result. But what if, instead of taking 15 minutes or more, a test could quickly determine whether you have COVID-19 with a glowing chemical? Now, in ACS Central Science, researchers describe a potential COVID-19 test inspired by bioluminescence. Using a molecule found in crustaceans, they have developed a rapid approach that detects SARS-CoV-2 protein comparably to one used in vaccine research.

The authors acknowledge funding from the Japan Science and Technology Agency, the Japan Society for the Promotion of Science, and the New Energy and Industrial Technology Development Organization.

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The Battle of Shiloh was a devastating American civil war battle in which both the North and the South suffered heavy losses. But it's also known for the mysterious phenomenon known as Angel's Glow. What glowed were the soldiers' wounds which amazingly gave them a better chance at survival.

But this mystery wasn't solved until two thousand one by high school students. As the Battle of Shiloh ended, the wounded lay in the muddy field awaiting help. Then some soldiers noticed their wounds glowing greenish-blue in the dark. Though perplexed, physicians saw that soldiers whose wounds glowed had lower infection rates and healed faster. Thus the soldiers coined the term Angel's Glow.

Fast forward a hundred fifty years, high school student, Bill Martin, got interested after touring the battle site. With his mom's help, who's a microbiologist, Bill and a friend began digging for clues.

They first identified bacteria that are bioluminescent then examined environmental conditions for any that could have been present in Shiloh in eighteen sixty-two. They focused on the bacterium Photorhabdus luminescens which lives inside soil nematodes, microscopic worms.

The two have a symbiotic relationship. When the bacteria emits light, it attracts insects, allowing the worm to infect them. Once inside, the worm regurgitates the bacteria into the insects' blood, killing the insect and other toxic microbes present. This may be what happened with Angel's Glow. Soldiers' wounds became contaminated with the nematodes. The worms likely released their toxins and enzymes, essentially cleaning the wound by killing pathogenic bacteria.

Why Some Wounded Civil War Soldiers Actually Glowed In The Dark ' And Lived Because Of It

"Angel's Glow" was a phenomenon of the Civil War in which soldiers' wounds seemed to glow in the dark. It took 139 years to figure out why...

Nematodes - the good, the bad and the ugly.

How would you like something worm-like, eight metres long and as thick as a garden hose wriggling (Figure 1) around in your stomach? Well spare a thought for the sperm whale, because that is exactly what it has to put up with! A species of giant nematode (Placentonema gigantissimum) makes its home in the placenta of the sperm whale...

Timothy Blake, a postdoctoral fellow in the Waymouth lab, was hard at work on a fantastical interdisciplinary experiment. He and his fellow researchers were refining compounds that would carry instructions for assembling the protein that makes fireflies light up and deliver them into the cells of an anesthetized mouse. If their technique worked, the mouse would glow in the dark.

Not only did the mouse glow, but it also later woke up and ran around, completely unaware of the complex series of events that had just taken place within its body. Blake said it was the most exciting day of his life.

Although the results are impressive, this technique is remarkably simple and fast. And unlike traditional gene therapy that permanently alters the genetic makeup of the cell, mRNA is short-lived and its effects are temporary. The transient nature of mRNA transmission opens up special opportunities, such as using these compounds for vaccination or cancer immunotherapy.

This research was made possible through coordination between the chemists and experts in imaging molecules in live animals, who rarely work together directly. With this partnership, the synthesis, characterization and testing of compounds could take as little as a week.

Not only did this enhanced ability to test and re-test new molecules lead to the discovery of their charge-altering behavior, it allowed for quick optimization of their properties and applications. As different challenges arise in the future, the researchers believe they will be able to respond with the same rapid flexibility.

After showing that the CARTs could deliver a glowing jellyfish protein to cells in a lab dish, the group wanted to find out if they worked in living mice, which was made possible through the expertise of the Contag lab, run by Christopher Contag, professor of pediatrics and of microbiology and immunology and co-senior author of the study. Together, the multidisciplinary team showed that the CARTs could effectively deliver mRNA that produced glowing proteins in the thigh muscle or in the spleen and liver, depending on where the injection was made.

One especially appropriate application of this technology is vaccination. At present, vaccines require introducing part of a virus or an inactive virus into the body in order to elicit an immune response. CARTs could potentially cut out the middleman, directly instructing the body to produce its own antigens. Once the CART dissolves, the immunity remains without any leftover foreign material present.

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