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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
For my shower water I studied multiple images of shower heads with water. The thing is, when the water comes out of the head it starts as a solid line of water and the further it falls down the further it breaks up in shorter parts. The parts get shorter and thicker the further they get down. They have to be almost down before they resemble a droplet. That is because of the cohesiveness of water. The result is that what started as a thin line becomes at least three times thicker once it gets down. To make it even more difficult is that usually the spray spreads out to a wider pattern.
Basically that is the problem with creating shower/jet water: it changes on the way down. You would have to create many different stretches and drops to get something that resembles real water.
Most on-line tutorials are for lakes and oceans, not for shower water. I have thought of using the photo-on-a-box method but that has it's own problems. Maybe it's an idea to try an AI and let that produce a Wavefront obj file.
The author of this shower on sketchup had the right idea but he failed to execute it realistically.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Yes, that's what water looks like in a freeze frame, that's right.
I think the water in your image is computer generated or created by a 3D artist and not real water. A shower pushes the water through the tiny holes which results in a longer line of stretched water before it falls apart. The water in your image looks like it just falls out of the shower head and is not pushed out. A rain shower might come close because it's purpose is to let water fall but even that has some push behind it otherwise nothing would come out. Nice image though and if we could create that I'd be happy with it.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Dear Keet. You and I need to seriously figure out how to search for the truth, it's easy to get lost here)). The whole point is that we are surrounded by deception, especially when faced with the sale of goods. Sellers are very resourceful and hire specialists to mislead us, to slip a sparkling illusion of quality instead of truthful information. And here, the more expensive the product, the more qualified the visualizer is. Therefore, I suggest looking for the truth where there is no seller's interest)). I searched for a very cheap product, a garden watering can. The Internet is filled with amateur photos from their favorite flower beds. That's where you can find the truth, that's where the photo is blurry and the horizon is littered, but everything is there without deception). In addition to watering cans, I scored such a thing as onion dressing, i.e. I generally removed the danger of deception, the process has no commercial value. And here's the result. The jet of water is solid at the initial moment, and after a short flight time it breaks into IDENTICAL drops, then there are no beautiful pulsations, sticking and deformations with volume increases. Just the same drops. It's an ugly truth. And I agree that all this drama with the flight of a lonely and unappreciated jet by mankind is invented by marketers so that the shower system can be sold dearly. And feeding onions from watering cans hinders the sale of expensive plumbing, because it does not lie. I did everything, I even got something similar to advertising lies, modeled all these pulsations, tried myself as a 3D artist for the presentation of the shower system and decided that this was a dead end. Feeding onions is closer to me. I'm uploading my version now, it seems interesting and simple to me. In the meantime, photos of garden watering cans. if you have amateur photos with alternative information, I will be happy to study it, it is interesting.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Of course, global processes with water can be very complex. At one time, I was interested in paragliding. At that moment, everyone was discussing the famous case of Ewa Wiśnierska, who ended up in a thundercloud and survived. At an altitude of 10km, hailstones the size of an orange , water in different sizes and conditions. But below, drops fall out of the cloud, which reach the ground exactly the same size as at the exit from the cloud. Give or take. This refers to the issue of deformations of the water jet in the shower head at the top and near the floor. The scales and distances are incommensurable.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
You and I need to seriously figure out how to search for the truth, it's easy to get lost here.
You hit the nail on the head. It's very difficult to find examples that are truthful. It's very good that you can see the difference between your two last pictures. The second obviously has a little more pressure behind it because the can is tilted deeper. You can see the difference in the start of the water. In the second picture the closed line at the start is a little longer and the drops keep closer together because of the higher pressure.
We both work from different points-of-view though. My goal is the best result in the 3Dview/HtmlView while I think your goal is the best result in a rendered photo. For a rendered photo I would start with a single drop and try to make that as real as possible. Then try to make it as small as possible in object size because you are going to need a lot of them! You will probably have to use Blender and try to eliminate as much faces of the drop as possible without destroying the general look. To get a smooth surface without hundreds of faces use the Blender Smoothing tool. It creates an illusion ('shadow') of curves where the angles are actually a little sharp. Try it by creating a sphere in Blender and reduce the number of facets. Find the optimal point where you use the least number of faces that still show curves when smoothed. Luckily a water drop is never a perfect sphere so rough curves are no problem. Maybe a little bean form as if it is about to break into two drops. You will be surprised about the low number of faces you need compared to the sphere in Sweet Home 3D.
Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Thanks for the link, saved me)) I needed to render in a dark room with a projection screen. So the light had to come out exactly as reflected from the screen (softbox). I decided to use “Invisible Light Panel”. One turned towards the screen, the second towards the room. It turned out quite well, but there are some nuances. First of all, “grains” appeared on the image. Secondly, despite the very thin light panels, they give a thin light around the perimeter (floor, walls, ceiling). Thirdly, the brightness there is very small 1-5% Can you by virtue of your experience suggest some other type of lighting for my case?
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
hi. I try not to use the panels to light up the TV or the screen. I use a group of multicolored light bulbs so that they cover the area of the screen, but slightly smaller than the screen. The illumination from such a curtain of balls goes to the sides, but it even better simulates the reflected light from the screen in the room. And there are no sharp stripes like the panels.
sphere lights can be of different sizes (I set 3-8% power). They can be white or of very different colors, then the imitation of reflected light from the screen will be more interesting, colored in different classrooms, as in a real cinema.
Re: Apartment project with lighting by invisible hemispheres. I continue advertising
I can't agree with that decision. The light from such bulbs goes in all directions, which is not the case in life. If the light is reflected from the screen, it can not hit the same wall that is located around the screen. You can bring them as close to the screen surface as possible, but then they may overlight it too much. If you reduce the light of the bulbs to a minimum, the reflected light will not come from the screen itself in the correct amount. Which is also unnatural. Try to make a render of your own room, but as if at night, where the light goes reflected only from the screen.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Great. I like your critical approach. Then there is another option for night mode. Instead of spherical lamps, use hemispheres directed towards the screen (the hemisphere must be rotated around the axis, I don't remember which one)) by 90 degrees, experiment). Hemispheres can be small in size and also arranged randomly, and have different colors. This illumination option is more unidirectional and will shine less to the sides (depends on the height of the hemisphere). The size of such hemispheres also needs to be determined empirically. First, make all the hemispheres of the same size, group them, and then, at the initial level of rendering quality, figure out what needs to be fixed. It is possible to move the bases of the hemispheres further away from the screen so that sharp circles of illumination do not appear. Try it yourself))).
, water in different sizes and conditions. But below, drops fall out of the cloud, which reach the ground exactly the same size as at the exit from the cloud. Give or take. This refers to the issue of deformations of the water jet in the shower head at the top and near the floor. The scales and distances are incommensurable.
