Screensaver Water

[Terresa Cherrie]

iposted here that this beauitful screensaver had malware detection on "kaspersky threat intelligence portal" and also "VirusTotal". my post was deleted a few day after and now same file i had in my PC doesn't get detected when i check on those websites. did you ask to white list it? if so, why didn't you reply to my post that is false positive intead? it makes it more suspecious.. btw, when i check on Hybrid analysis, it do gets detected. ( -analysis.com/sample/d5282fc2d2cd2bf8088bb42c6847e74ebfbc2a8c69f4c42773800402792c0dc7). i don't mind paying for this screensaver if it can be cleaned.

It install Adobe Reader DC and uses it to display animation. On my Windows 11 system it's too slow to be usable. I try to use "Preview" option, nothing happens, then again nothing happens, I wait some more, I give up, then it shows. It looks stunning, but it should be optimized to start faster.

As someone else mentioned, it does not like multi-monitor setups much, as it only displays on one screen. Side Tip: You can extract the screen saver file (*.scr) from the exe using 7-Zip and not have to install it using the install exe. Just rename the Screensaver.scr in there to what you want it named, then right click on it and click install to get it installed on the list.

At first, i've ported JS code to Java only to realize that there's no way to squeeze more than 1 fps on my Huawei U8100 hardware. (There're several similar attempts on the net with the only conclusion: they're ridiculously slow).

Then i decided to try Android NDK to reimplement original algo in pure C (my first encounter with it in 10+ yrs!). Despite NDK's docs being somewhat confusing (especially as to requirements and prerequisites), it all worked like a charm, so i was able to achieve up to 30 fps -- it might not be too impressive, but still, a radical improvement over Java code.

It utilizes the rajawali OpenGL ES framework/library. You can download the rajawali examples app from the market to see how it looks. Browse through the "src" folder and you will see the TouchRippleEffect activity and renderer. Hope that helps.

I'm no expert in this, but I believe the typical way to do water effects in OpenGL is with a fragment shader. With a static image as a texture, your shader can vary the texture coordinates used for sampling that image, to distort it in arbitrary ways.

Calculate the pixel's direction and distance from the center of the circle, and adjust the texture coordinate toward or away from the circle's center based on a sinusoidal function of the distance, and you should get a nice ripple effect.

Judging by the description of that YouTube video you linked, it sounds like that's done by using a grid of triangles and adjusting the texture coordinates only at the vertices. That should work too, but it won't look as good unless you use a rather fine grid. Doing it per-pixel with a fragment shader is the ideal, but I don't know whether that would cause performance problems on a phone's GPU.

If your iPhone starts glitching, the first step you should take is to restart your phone. In some instances, the apps on your phone may be the reason for glitches. If all fails, one should think about taking the iPhone to the nearest Apple istoreor to replace the phone altogether.

Many types of Iphones glitches may come as a result of running high-powered apps, way above the running capacity of the phone's GPU and on some occasions, a decrease in your battery will also lead to glitches.If you face the same problem again, you can visit any of the nearest iStores or contact any 3rd party websites for screen replacement. Some of the popular sites include maxbhi, amazon, xfurbish.com and so on...

my iPhone x just started doing something similar a couple of months ago. the screen had never been replaced, i cleaned the whole phone+speakers regularly and i always had a case on it. it was in the shower and a little water got on top of the case and it shut off and would not turn back on. the next day i finally got it to turn back on but face id didn't work and then a couple weeks later the screen turned static (like you said just like an old tv).

In the 1970s, wallpaper manufacturers looked for a moisture-resistant alternative to open-pore paper-based wallpaper and came up with vinyl wallpaper. The washable, robust wallpaper with a plastic surface began its triumphal march around the globe. It is often used in rooms with heavy wear and tear as well as with high moisture development. In addition to these advantages, there is a plethora of choice of surface finishes, patterns, colours and effects.

Each vinyl wallpaper consists of a compound of vinyl and a carrier material. This can be either paper or non-woven material onto which the PVC coating is applied. Vinyl wallpaper is an invention from the 1970s.

Vinyl wallpaper was developed in the 1970s as a waterproof alternative to classic paper-based wallpapers. There was a clear demand for a solution that would allow easy cleaning of stains, especially for wet areas and rooms with heavy use. Since then, vinyl wallpaper has become almost indispensable for modern wall design concepts.

The carrier layer of vinyl wallpaper can be made of paper or non-woven materials. Thanks to clever material compositions, non-woven material is stronger than paper, easier to apply and can also be removed dry without leaving any traces behind. For bathrooms, only vinyl wallpaper with a non-woven carrier layer should be used as paper is unsuitable.

Vinyl wallpapers get their name from their polyvinyl chloride surface coating. PVC is a thermoplastic polymer that is chemically extracted from the monomer vinyl chloride. Besides polyethylene and polypropylene, PVC belongs to the group of thermoplastics. In addition to PVC, the surfaces of plastic-coated wallpapers can be made of other synthetic materials from this main group, such as polymethyl methacrylate, polyvinyl fluoride or ethylene-vinyl acetate copolymers.

A liquid acrylic layer is sprayed onto the respective carrier material, free from blowing agents. The wallpaper dyes (inks) are then printed on and fuse with the vinyl when heated. The inks consist of fine pigment particles. The wallpaper must then be dried thoroughly.

A solid PVC layer is firmly fused with the respective carrier material by lamination. This is done in large production machines via a process which combines pressure and heat. The laminated vinyl surfaces are often given special surface structures (e.g. embossing) in further processing steps.

So-called foamed vinyl (special vinyl paste) is applied to the respective carrier material by screen printing. Gaseous chemical substances are produced in an evaporation process at very high temperatures, which in turn interact with the vinyl to form pores that cause the vinyl to foam.

Vinyl wallpaper is characterised by a number of positive characteristics which provide advantages in terms of private as well as commercial and public use. These models are water-resistant, flame-retardant (low flammability), hard-wearing and can be painted over.

Vinyl wallpaper does not absorb moisture. It is washable, waterproof and can be cleaned with a damp cloth or sponge. Depending on specific cleaning characteristics, even special cleaning agents and more intensive manual cleaning are not a problem. Vinyl wallpapers are perfectly suitable for wet rooms such as kitchens and bathrooms.

Vinyl wallpapers boast low flammability characteristics in case of fire and belong to fire-resistant furnishings, which is of particular importance in public and commercial spaces. Products with low flammability have a special finish which means they do not immediately catch fire. They are also self-extinguishing.

The plastic coating makes vinyl wallpapers extremely robust and resistant to damage. They remain dimensionally stable and retain their shape. Little maintenance is required, which can be done a little more forcefully and with appropriate agents. With vinyl surfaces, minor damages are not particularly obvious.

Some vinyl wallpapers can be painted over. These mostly have foamed surface structures. All other PVC wallpapers are usually completely water-repellent, which is why water-soluble paints just roll off the plastic surface.

Vinyl wallpaper cannot be wallpapered over because conventional paper-based and non-woven wallpaper paste does not stick to the water-repellent surface. Dispersion adhesive can be an option, but is unsuitable for entire walls. Smaller decorative elements such as borders made of vinyl can, however, be applied to vinyl wallpaper (plastic on plastic).

The carrier material of a vinyl wallpaper determines which paste can be used and how the wallpaper should be put up. The relevant distinction is whether the vinyl wallpaper has a paper or a non-woven carrier.

For these wallpaper types, normal paper wallpaper paste is used. For heavy and thick vinyl wallpapers, a special paste with increased adhesive strength is mixed according to the information on the packaging. The length or strip of wallpaper is to be pasted on the back side generously and evenly, preferably on a trestle table. Afterwards the length must be left to soak; the soaking time is specified on the paste package.

For vinyl wallpaper with a non-woven carrier, a paste for non-woven wallpaper is needed. This is either ready-mixed or available as a powder to be mixed with water. In damp rooms such as kitchens or bathrooms, a small amount of dispersion glue can be added for better adhesion. Instead of the wallpaper strips, the wall is pasted directly. Soaking times are not necessary.

Washable wallpapers have a simple plastic coating. Light soiling and water-soluble stains can be gently removed with a damp cloth and soapy water. Grease, oil and stains containing solvents cannot be removed. Abrasive cleaners must not be used on washable vinyl wallpapers.

Super-washable wallpapers are sealed even more densely than washable wallpapers, which allows the removal of more serious stains. Even some greasy stains can be washed off with soapy water and a sponge while they are still fresh. Careful rubbing is also an option.

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