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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
the big problem looks like this. Although I have placed a cocoon of two hemispheres around the lamps, the brightness of this cocoon does not allow the outer surface of the lamp plates to be brightly illuminated.
if these hemispheres are made brighter, then the wall next to the lamps will light up strongly, this is not necessary. What should I do? There is a way out, it is necessary to locally illuminate the leading edge of the plates from the viewer's side. Then the gray unpleasant color of the shape will become the desired saturation, but it will still remain a little transparent. That's how I arranged this group of hemispheres, each 3%.
The hemispheres lie on their sides and shine in the direction of the lamp plates. This light compensates for the lack of illumination of this part. And it doesn't change the overall picture in the room. It hardly changes). Local bright illumination I want to say separately about the pillows! It is necessary to spend time and carefully push very thin long hemispheres on the side into the narrow slits. These pencils do a great job with blackness and get full-fledged reflexes, just like in real pillows on sheets. It is better to spend time on these micro-fingers, and get white linen. As a result, the problem has been fixed in a big way, it looks like this. The lamps are white, the pillows are more or less white, But no longer dirty))
the reclaimed room
The method of meaningful local illumination of transparent surfaces is very good and beneficial. If the backlight is done with an understanding of what remains transparent in reality, and what looks opaque and bright. It's all about the point of view and the location of the light sources relative to the viewer and the shape.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
Amazing what you achive with the carefull placement of lighting. This whole thread has grown into a master class in the use of lights to get photo realistic results. Thank you for sharing all your experiments and explaning how you got things done.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
the picture changes dramatically if you stick a hemisphere finger into a black hole under the pillow. A pleasant reflex appears there and immediately everything turns white. You should stick it in more often.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
if you don't have a 3D model of the right thing, then you can use the magic Keet method as always. You need to take a photo, clean out the background and use a box with the only visible front side to make a substitution. This time I showed the customers how specific suspensions of a certain brand will look above their table. I took a photo from the factory's website. He accurately completed the dimensions of the life-size photographs of the ceiling lights. I put a 5% invisible hemisphere cap on top. First, of course, I built a row of five cylinders, for which I wrote the mirror prefix sweethome3d_window_mirror_ after "g" in the OBJ file. Such mirror prefixes are necessary for realistic details in objects where there are shiny metal surfaces. The wire is also a thin cylinder with a diameter of 0.3 cm, but not mirrored, light gray. Without a mirror appearance, such surfaces turn out to be gray and not spectacular. I also used the mirror prefix for the table supports that I made from the walls. The supports are made of polished stainless steel, with reflections of chairs and parquet. Boxes with photographs of ceiling lights must be placed strictly perpendicular to the line of sight from the viewer. Then ellipses of round shapes in the lampshades-the photo will look correct and without distortion.
In the same room, I showed the sconces on the wall. I took a photo from the site and cleaned the background. I placed this photo on a box with 5 invisible sides with an indentation of 8 cm from the wall. I placed bright flat spheres behind the photo. Everything is simple and you don't have to look for 3d models of specific lamps. All sizes correspond exactly to the actual fixtures.
You have to be honest. This method is not quite simple, but it perfectly replaces real 3D models. Especially if they are not at all or not very expensive. But there are photos.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
I forgot to tell you!! You can use photos of the oven, microwave oven for the kitchen. Any household appliances (front photo from the website) are placed on the front side of the box, the sides are painted gray. And pay attention - if you set the maximum gloss for the side of the box, then the oven and microwave begin to reflect the entire interior, as in a shiny black glass!!! You just need to restrain your ego and work at the third level of quality, not at the maximum fourth. There are no reflections at all on the fourth level, but there are on the third!
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
I continue to walk in my remote forest. I came across an information billboard. There is a serious study of the phenomenon of a sagging chain. This concept has agitated the minds of the most prominent scientists for many centuries. The shape of a chain (rope) sagging under its weight turns out to be very difficult to describe mathematically. I kept thinking it was a parabola. But no. The brilliant Antonio Gaudi was not a mathematician, but he built his famous structures precisely on the basis of a sagging chain. He was just looking at the rope and that was it. Without formulas. The rope shows what the shape of the arch and vault should be. You just need to turn everything 180 degrees.
The whole force of nature is here. I also decided to recharge with this power.))After carefully reading the scientific study from the billboard, I realized that no one could tell me the exact line of the sagging chain. You need to take a parabola line and not torture yourself. It is as similar as possible to the natural sagging line of the chain. I decided to model a lamp of a well-known brand, where there are conductive tapes hanging freely from the lamps. They are not available in ready-made models, there are only the lampshades themselves. I had to make these tapes myself. By the way, the article is here, read it, it's interesting. The text on the billboard in the forest
so I placed the background image of the parabola graph, set it to a size of 80cm wide and surrounded part of this graph with a wall. The wall thickness is 0.5 cm, the wall height is 2.5 cm. It's just like in the life of the tape. Then I saved it to OBJ and imported it back as a model. I turned it on the X-axis by 90. The result is a natural ribbon that sags. It remains to place the lampshades above the table and carefully manipulating the width and height to glue my tapes to these lampshades. This is a graph of a parabola, but you need a graph of a cosine hyperbola or something else. I still don't get it. The parabola is quite suitable in appearance)).
as a result, we got such a lamp. Inside each lampshade, I placed a small white sphere with a power of 100%. To have the illusion of a white glow through the glass with the parameter d 0.5. I assigned a white TEXTURE for the glass, not a color. It turned out to be a white frosted glass with a light bulb inside the ceiling. An illusion, of course, but it looks like the truth.
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
more about using the photo on the box. I took a photo of a designer clothes hanger on the factory's website. They don't have a 3D model. There is only a photo, in black.
I took this photo, repainted it in Photoshop in terracotta color, cleaned the background. Of course, it was possible to suffer and make a 3d model yourself, there are balls of different sizes and a stick-cylinder at an angle, but I was too lazy))). I placed the new PNG photo on the front of the box, removed all other sides, and set the dimensions of the box as needed for this hanger. On the back of the flat image, I placed a ball of bright color so that it forms a dense shadow behind the base of the hanger. Without this sphere, you get a stupid thin shadow line, not like from a massive ball. The ball is green. so that you can move it and notice where it sticks out in the frame. You can't see the green edge, so it doesn't stick out)). Depending on the viewer's perspective, this box can be rotated, it must be perpendicular to the direction of view.
I put hemispherical caps on the image for illumination. They help to show the shape of the ball more voluminously.
as a result, here is a picture with a hanger on the floor of the desired color. If you twist it behind the viewer and put the green ball behind, then you can't see that it changes position)))). Mindfulness test))
I will tell you about the mirror with a mosaic frame separately
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Re: Apartment project with lighting by invisible hemispheres. I continue advertising
there is also only a photo on the factory's website, there is no 3D model. A mirror of complex shape. With a blue mosaic finish. I decided on a difficult job. First, I prepared a drawing, outlined the photo very accurately, and outlined the way to create walls along the axis of the frame.
in the photo with the mosaic, I carefully cleaned the background outside and inside the frame. then I created walls in the background image in SH3D along the path of thick pink sections of the drawing. I bent the walls 90 degrees. The result is a smooth geometrically correct model. On top of it, I placed a thin 2mm box with a prepared PNG photo of the mosaic. Without such a complex overlay, I could not accurately place the texture on the upper surface of the model wall, everything was crooked. This method of superimposing the box works, but you need to do everything exactly. I made a mirror again from two walls at an angle to each other and assigned the prefix g sweet home 3d_window_mirror in the OBJ model_. this is enough to get a great mirror, nothing else is needed in the MTL file.
