How to create turned-on light fixture in V-ray

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8 Jul, 2011 Artem
8 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Good afternoon, long been interested in the "correct" setting lighting interior lighting sconces, floor lamps. chandeliers. How to install and configure light sources simulating glow "lamp" for fotorealestichnoy 3d visualization? Sometimes installing a light source in place (spiral) in a light bulb, the light with ichtonika have to go through 2-3 layers of glass, and sometimes through opaque (fabric, plastic, frosted glass) ceiling.


9 Jul, 2011 RenderStuff (Staff Author)
9 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Hello! It is a recurring theme. There is the basic concept, we can, of course, in general, all discuss how to proceed in the most common cases, but we suggest you discuss this with a concrete example. Or even Prima tures. The samples of fixtures, you can choose any 3d model of the fixture provided at the library and we, her example, we will discuss all the nuances of the installation of light sources for interior lighting. So it will be easier and clearer all. Especially given the fact that we can for an example geometry talk about exceptions, atachah sub-items, materials and other items that must be considered. Of course, we do not limit ourselves to a single lamp, and can take turns with you to disassemble all you are interested in the types of lighting devices 🙂 So choose a particular and start playing. Then move on to the next and so on.


10 Jul, 2011 Timofey
10 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
waiting, waiting, waiting)


8 Jul, 2011 Artem
10 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Thank you for the example I think will be even better. Now, what I am primarily interested in (since it is very common option) http://renderstuff.com/chandelier-3d-model-classical-armed-197/ And if not difficult, really wanted to learn the principle of work and with translucent cloth. As well as your concept of fasting "glowing" lampshades)


9 Jul, 2011 RenderStuff (Staff Author)
10 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
3d модель люстры подвеснойПривет.Да, согласны, эта 3d модель подвесной люстры, весьма типична. Однако сразу хочется отметить, что ее плафоны непрозрачны для света. Кстати, в описании этой 3d модели есть небольшая заметка об особенностях ее использования. Итак, ее плафоны - из непрозрачного сложенного шелка.Теперь давай прикинем, что будет, если внутрь плафонов поместить сферические источники света. В случае с V-Ray наиболее удачным решением будет использование VRayLight с типа Sphere.Если говорить о физ. корректном освещении, по крайней мере, в рамках компьютерной графики, то необходимо поместить внутрь плафонов источники света и все. Никаких манипуляций больше не требуется.В этом случае, свет будет бить только сверху и снизу плафонов, по бокам же он будет полностью поглощаться моделью/материалом плафонов.То есть, свет будет бить лишь на небольшую зону на полу непосредственно ПОД люстрой и в еще меньшую зону сверху НАД ней. Разумеется, в этом случае прямое освещение от VRayLight'ов, кроме как в вышеупомянутые зоны, попадать не будет. То есть, кроме этих пятен сверху и снизу люстры, остальные зоны помещения будут темными (без прямого света).Однако тут вступает в игру непрямое освещение. Прямой свет попадает в зоны сверху и снизу люстры, а затем отражается в виде лучей вторичного освещения из этих зон и разлетается во все стороны, освещая все помещение.При таком освещении важным фактором являются материалы поверхностей, от которых отражаются вторичные лучи.Например, на полу паркет. Тогда отражения от него будут окрашены в цвет паркета (смотри тему о коллор блидинге). Единственное, что общем-то сыграет важную роль, это, то, что если материал паркета сделан верно, то есть он глянцевый и имеет отражения, то GI отскоки от него будут минимальны (от отражающих поверхностей, с выключенной по умолчанию галочкой GI caustics Reflective, GI отскоки - минимальны).Это стоит учитывать и всегда верно настраивать материалы в сцене, во избежание колор блидинга и подобных проблем. Вторым материалом, отдающим GI, будет материал потолка.Как правило, это просто VRayMtl с белым Diffuse цветом. От такого материала GI свечение будет максимальным. То есть потолок и будет основным источником свечения при такой схеме освещения.Именно мягким светом от потолка и будет освещено все помещение. Кстати, в реальном мире происходит то же самое.Поэтому важно, чтобы настройки GI были максимально качественные. Как привило, Irradiance Map Min rate -5 Max rate -1, HSph. subdivs 80-120 и Light Cache Subdivs 2500-3500 будет вполне достаточно. Иногда можно и ниже.Так выглядит верная настройка внутреннего освещения с помощью потолочной люстры со светонепроницаемыми плафонами, как в нашем примере.Однако существуют хитрости, позволяющие сэкономить время просчета, либо улучшить качество, можно обсудить их тоже 😉


8 Jul, 2011 Artem
10 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Thank RenderStuff, very popular. Well, about the tricks with exceptions so it is written in the model🙂🙂 I have read all of the models, and the thought that the same model could be considered a couple types of lampshades materials. Most are interested in lighting with translucent shades🙂 because sometimes there is noise from the light passing through plafon.Da and tricks for setting up of the mat is also interested)


9 Jul, 2011 RenderStuff (Staff Author)
12 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
3d model bras Come on, back to the example. For example, 3d model wall sconces . Mat describe are not going to simply download and poglyadi.Luchshe to see once than to read 100 times🙂 If, after exploring the mat will be specific questions, of course, discuss, but it is the general concept you immediately realize that opening the mat bra or, for example, that classic wall sconce with bow .Ty absolutely true I noticed that when light passes through a refractive material, noise may appear. It's quite simply eliminated, increasing the Refract Subdivs material, as well as Subdivs light source. But the problem is that it is, and the fact of direct light passing through the material, will lead to multiple increase the time renderinga.V the case of lamps, when they are in general, are not the main source of light, and on the idea of ​​springs Sveta. It's simple. They can be left as they are, simply put inside the light source and the ceiling slightly light the object from the inside, without worrying about Subdivs material or source sveta.Kak usually in the interior sconces often act only as decorative lamps, which give the room a cozy atmosphere, and the main source of light acts exactly ceiling light. However, when the ceiling fixture is a transparent material lampshades, the situation is much more complicated and there is simply not do without hitrostey.Variant to wrap the Subdivs, cut off immediately, because it does not ratsionalno.Znachit Now, we should make sure that the ceiling material is not disturbed direct rays of light from the light, set in a very plafony.Delaetsya prosto.Davay back to our 3d model of classical vosmiplafonnoy chandeliers and imagine that its lampshades translucent material, such as in a sconce with white plafonom.Pervoe what we need to do is to eliminate lampshades model of lighting and shading installed in them sources sveta.Dlya this, convert our chandelier in Poly and move to the level of sub-object Element (key 5) and select the objects lampshades. Then click Detach and disconnect the ceiling in a separate object. Immediately it should be distinctive call this object, then it was easier to find it in the list of objects stseny.Zatem, come to the light sources inside the lampshades in their settings, click on the Exclude button to exclude the object of lighting and lampshades zateneniya.Pochemu we simply do not exclude the entire chandelier of shading and lighting? Yes, simply because the object is likely chandeliers give a beautiful realistic shadows in the scene and it makes no sense teryat.Eto not physically correct? Yes, of course, this is not correct from the point of view of realism, but in most cases this trick quite noticeable on the 3d visualizations, especially if the light source is visible. Then he will be "smeared" in a diffuse refraction lampshades materials and will look quite natural, as if it were illuminated from the inside straight svetom.Esli the transparency of the ceiling material is not made by refraction, and for example, a raster map in the Opacity slot, the situation is a bit more complicated .In this case, will likely have to separately prerenderivat enters the frame 3d rendering of the chandelier, or lampshades, regionom.To is, to render this scheme for the entire frame, and then, you come to the exclusion of light sources and remove them from the site lampshades. Then, just pererenderivaesh REGON renderer (Region Render) < / a> the desired part of the frame with a chandelier and a bitmap editor neatly connects the full frame with a piece of regiona.Vot itself so you can quickly and beautifully render chandelier with translucent materials lampshades😉
directdiˈrekt,dī-
"direct" – визначення
прикметник
extending or moving from one place to another by the shortest way without changing direction or stopping.
there was no direct flight that day
синоніми: straight, undeviating, unswerving, shortest, quickest; nonstop, unbroken, uninterrupted, through
прислівник
with no one or nothing in between.
buy direct and save
дієслово
control the operations of; manage or govern.
an economic elite directed the nation's affairs
синоніми: manage, govern, run, administer, control, conduct, handle, be in charge/control of, preside over, lead, head, rule, be at the helm of, supervise, superintend, oversee, regulate, orchestrate, coordinate, run the show, call the shots, be in the driver's seat
Інші визначення (5)
Дивіться також
to direct, direct object, direct current, direct debit, direct flight, direct deposit, direct marketing, foreign direct investment, direct mail, direct speech
Переклади слова або виразу "direct"
прикметник
прямой
direct, right, straight, outright, straightforward, immediate
непосредственный
direct, immediate, spontaneous, proximate, unaffected, on-the-spot
постоянный
constant, standing, permanent, continuous, regular, direct
точный
accurate, exact, precise, just, precision, direct
открытый
open, opened, uncovered, public, frank, direct
дієслово
направлять
guide, head, direct, destine, route, refer
руководить
lead, guide, manage, direct, run, govern
управлять
control, manage, run, drive, operate, direct
наводить
direct, point, lay, throw, vector, sight
режиссировать
direct
прислівник
прямо
direct, right, straight, directly, live, just
непосредственно
directly, direct, immediately, right, live, square
Інші переклади (17)


12 Jul, 2011 plotnik
12 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Hey. - "In the raster editor," Thank you, that is, Photoshop, painten etc ... If I ask a question in the post-processing Fototshope, for example, is a go beyond the topics discussed here? A "short"? But most likely, according to one question for Photoshop drags a whole bunch ... Thank you.


9 Jul, 2011 RenderStuff (Staff Author)
12 Jul, 2011 # Re: How to create turned-on light fixture in V-ray
Hello! Not at all 🙂 We have a topic Common questions 3d graphics , in which you can discuss any questions CG topics that go beyond the existing partitions, but one way or another, connected with the creation of 3d. Feel Create new topic there for Photoshop. We only 👍


24 Apr, 2012 Yura
24 Apr, 2012 # Re: How to create turned-on light fixture in V-ray
Tell me, how and what is highlighted in the ceiling itself, if we exclude it from coverage. I'm talking about the case when we have one of the light fixture on the ceiling using a refraktom material? After all, if we render to the ceiling will be black with a light spot inside from visible light source, which is located inside. And more light spots on the ceiling and the floor will be wrong, ie, not in the form of holes in the ceiling of.


24 Apr, 2012 Anton (Staff Author)
24 Apr, 2012 # Re: How to create turned-on light fixture in V-ray

Hello!

A luminous plafond, in your case, and indeed any light that transmits light through itself, is not at all appropriate to do with the help of refractive material. This is simply pointless, since, in this case, the plafond itself is one self-luminous object. Well, let it not shine on its own, but is illuminated from the inside by the lamp. Visually, for someone who does not look at it from the inside, it's just a self-luminous object.

The material for such a plafond in V-Ray will be something other than a self-luminous material based on VRayLightMtl, with an appropriate intensity of glow. Of course, for greater realism, you should use the texture of the glow. For example, the gradient is gray ... white ... gray. It simulates a bright glow in the center of the plafond and its attenuation from the center. In any case, the more intelligently the texture of the glow, the more realistic the result.

Exclude from the lighting should only the plafond, not excluding its fastenings, wires, internal partitions, etc. .. This will throw the corresponding shadow on the same ceiling. At the same time, the main portion of light will not interfere.

Regarding the light on the ceiling, the exclusion of the plafond from its illumination will not change much, at least, everything will look natural and will not cause any criticism of the one who will contemplate this 3d visualization.

By the way, in new versions of the V-Ray renderer, VRayLightMtl was able to emit not only secondary lighting, but also Direct illumination, the same as an ordinary light source.

This can also be used to adjust the internal lighting in V-Ray😉



24 Apr, 2012 Yura
26 Apr, 2012 # Re: How to create turned-on light fixture in V-ray
Thank you! Here's how I did it with your advice) (no post processing) it seems to me, or because I'm excluded from ceiling lighting - there were sharp shadows? though I may seem so ... well interesting public opinion🙂


24 Apr, 2012 Anton (Staff Author)
27 Apr, 2012 # Re: How to create turned-on light fixture in V-ray
It turned out okay. To make the shadow softer, you must change the geometric size of the lights o. The more light the more the shade softer, and vice versa. Then, of course, have to adjust their maltiplery to large lajty not Relight scene. And you can just brightness value of units, with the Default (Image), change to Lumious power (lm). In this mode, the brightness is not dependent on the light source container sizes in the scene. Then the scene illumination will remain the same even after changing lights o size and can easily adjust the softness of the shadows😉


24 Apr, 2012 Yura
28 Apr, 2012 # Re: How to create turned-on light fixture in V-ray
Thanks for the tips!


23 Aug, 2012 Demkin
23 Aug, 2012 # Re: How to create turned-on light fixture in V-ray
I'm not quite vnmatelno read, but I have such a conversation with chandeliers) make 2 source type, one palafon lights inside and the ceiling, the second a little more, be below the chandelier lights and all.


3 Oct, 2012 Ruslan
3 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Hello! I want to consult with you. In what way and how to make the lighting box of colored plexiglas (different shapes)? Here is an example of what I want to invent🙂


24 Apr, 2012 Anton (Staff Author)
8 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Hello! This is the simplest case, when it is appropriate to use a self-luminous material with the desired glow texture in it. This topic describes the process. Please read it😉


3 Oct, 2012 Ruslan
13 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Hello everybody! Here's what I got. The only thing missing is reflection. But how to do it, I do not know.


24 Apr, 2012 Anton (Staff Author)
13 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Take VRayBlendMtl. The Base material inserts his luminous mat, and in one of the Coat materials, vtavlyay just VRayMtl with the same texture as the self-luminous in the mat, but needed to wind the mat you reflections. Thus, you get a composite material in which the properties of the two materials are mixed. Self-luminous and reflective😉


3 Oct, 2012 Ruslan
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Hello! Anton, I did as you advised and seemingly out. But to make it more realistic to have to work a little bit. That photo


24 Apr, 2012 Anton (Staff Author)
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Do reflection blurred, the pictures are not as clear as yours😉


3 Oct, 2012 Ruslan
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
Where can I find the correct settings for the material Colored Plexiglas?


24 Apr, 2012 Anton (Staff Author)
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
They do not need to look for, they need to do. Take on the eyes adjust, tweak that I have already suggested in the previous one post.


3 Oct, 2012 Ruslan
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
And why all the settings made on the material eye? 🙂 Do not they have their exact settings? For example, what percentage should reflect, refract, or blur the material colored Plexiglas? 🙄


24 Apr, 2012 Anton (Staff Author)
15 Oct, 2012 # Re: How to create turned-on light fixture in V-ray
No computer graphics is not rocket science, it's all subjective 🙄


19 Dec, 2012 coolerman
19 Dec, 2012 # Re: How to create turned-on light fixture in V-ray
Hello! There is a question on the subject. Used in lamps photometric light - free light (vray shadows). I want to make more soft shadows, twisted parameters, but the sharpness of the shadows and has not changed. Prompt, what parameter you need to tweak?


24 Apr, 2012 Anton (Staff Author)
3 Jan, 2013 # Re: How to create turned-on light fixture in V-ray
Hello! I do not like how the vray shadow in standard light sources, so I just try them, if possible, not to use, at least, when there is such a need for this. It occurs very rarely, such as when you need to make a "spotlight", the standard unidirectional source is indispensable. In other cases it is better to use VRayLight, in your case, the more so. There is no point in a lamp with a closed canopy pop photometric light. But if I so much want to use it, the VRayShadow, for the softness of the shadows corresponds to parameters of UV and W size. This virtual size of the light source casting a shadow. The more they are, the softer the shadow. To activate the effect of these parameters on the shadow, you must tick «Area shadow».


3 Jan, 2013 Nata
3 Jan, 2013 # Re: How to create turned-on light fixture in V-ray
Good evening. Izviniyayus, but very strange, I left this topic a question about the fluorescent lighting in the toilet with attached pictures. Yesterday and the day before yesterday he was still on the site. And now he's gone. He was removed as a consequence of incorrect or question never came to the forum?


24 Apr, 2012 Anton (Staff Author)
3 Jan, 2013 # Re: How to create turned-on light fixture in V-ray
Hey, there is nothing strange. The question is not removed, it just moved to a more suitable topic for setting interior lighting , in fact, as the answer to it😉


3 Jan, 2013 Nata
3 Jan, 2013 # Re: How to create turned-on light fixture in V-ray
Oh, thank you very much!!!!!


24 Jul, 2013 Ayder
24 Jul, 2013 # Re: How to create turned-on light fixture in V-ray
Hello! Can you suggest how best to do all the spotlights and the like, to the game has been the effect of glare on metal?


1 Jan, 2014 Kristina
1 Jan, 2014 # Re: How to create turned-on light fixture in V-ray
Can you please tell how to make such lamps beside the bed? Put Vray Light under glass, it does not shine.


12 Jan, 2014 Ilya_sp
12 Jan, 2014 # Re: How to create turned-on light fixture in V-ray
Christina, the material settings and light source lay chtol? 😉


19 Feb, 2014 Svetlana
19 Feb, 2014 # Re: How to create turned-on light fixture in V-ray
"The material for such a courtesy light in V-Ray, will be something other than a self-luminous material based VRayLightMtl, with the appropriate light intensity. Of course, for a more realistic look, use a glow texture. For example, the gradient of gray ... white ... gray. It will simulate a bright glow in the center of the ceiling and the attenuation of the center. " - Refers to the texture of the picture?


24 Apr, 2012 Anton (Staff Author)
24 Feb, 2014 # Re: How to create turned-on light fixture in V-ray
Yes, of course, talking about the texture😉


21 Mar, 2014 Yekaterina
21 Mar, 2014 # Re: How to create turned-on light fixture in V-ray
Hello! I use the lamp material VRayLightMtl. The renderer does not light, but the light in the viewport. In rendering the lamp goes gray. In the settings you do not like anything touched. Tell me, please, in what could be the problem?


26 Jul, 2015 Kseniya
26 Jul, 2015 # Re: How to create turned-on light fixture in V-ray
Good afternoon! Please help create a turn on the lamp. She was placed in Vray sphere, but the light it provides, and no color. I am located in the sphere of the lamp. but it is not clear if it is turned off. that is, the room lights, but is not visible. Render himself: Light's settings:


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