I’m doing this project of a living room in Blender with Vray, and I ran into these problems. I have disabled the rendering of displacement maps because it is too slow for my computer.
I am unable to make the HDRI span the entire window
The HDRI looks blur
There are some image artifacts (5 bright dots), which can be removed with post proc, but I’d like to know how to minimise them?
The light below the TV cabinet is blue (exactly the same as the one on top of the cabinet), but due to reflection off the wooden floor, it has become reddish orange. Is it really like that in real life? It is a VrayLight.
hello
unfortunately I have not yet turned on vray however I think you should create more realism.
should improve all materials and identify the landscape in the background (I do not understand what is).
You should start with some tutorials for vray 3DX to improve the lighting in its entirety.
Yup, I know I have to create more realism, but I need to know how to do it… In what way can I improve my textures?
Should I also use a three point lighting system? I have watched some tutorials, and they take you through how to setup interior lighting in their scene, and seldom give you general principles to go by…
I don’t think 3-point lighting is going to help you here, interiors require a lot more thought. Technically it would work, but if you use GI, it more than likely would not be necessary. 3-point lighting is a key light, and fill light, and a rim light, more suited for a model sitting on a floor. Interiors can be lit with only one area light and some GI, but there’s more to think about, such as sunlight or not, time of day, ambience, interior lights if any, and so on. If you have an interior with a skylight, sunlight coming through four windows, etc., you can’t just light it using the 3-point lighting system. I am by no means an authority on photo-realistic interiors, but I have a few thoughts. You need to figure out what time of day it is. By the looks of your outside picture, it’s either dawn, dusk, or the middle of the day and a tornado is about to touch down. Also, if you are going with a nighttime scene, the window is going to reflect a lot more than in the daytime. Not sure if you have GI turned on or not, but if you do, it’s not set right. You can light an interior with Direct Lighting, but it is a lot more difficult to fake the GI. As for the coffee table, etc., not looking realistic, is because you need a little bump and some gloss, preferably blurred gloss. This helped me a while back using Vray, maybe you can get something out of this as well:
There’s a couple of parts to it, but they are well worth a watch
From a realism perspective, a bevel on the coffee table and cabinet/shelves might help. Having sharp corners is a hazard, so they are usually avoided. The sofa needs thicker legs and perhaps a broader foot; little legs may bend or put holes in the floor.
Thanks! I’ve decided from the start that this is going to be an evening scene where the sun is just going to set. In that case, should I make the window more reflective?
Also, I do have GI turned on.
For the coffee table, I already have a normal map, diffuse map and spec map on it. Are the values not high enough? When I set it higher, the surface is very bumpy…
The table is already beveled, as well as the sofa and cabinets. Maybe because this is a low res render and not a final render? I’ll try to increase the bevel on the edges though, but I think too much and it’ll look rounded off.
Thanks for the tip on the legs, I will definitely try that.
I would make it more reflective for sure, you can kind of see what it might look like here:
I like the nighttime cityscape outside of the window personally, but that is up to you of course.
As for the table and shelves/cabinets, you just don’t have enough reflection on the material as seen here on the floor and table: http://www.asucssi.com/wp-content/uploads/2013/12/excellent-Decorating-Ideas-Living-Room-and-Interior-Design.jpg
You can see that although the wood is extremely dull, it is still casting a blurry reflection. Same here:
Once you fix that, you might find you have to turn down the bump even more.
I think your GI settings are way off as well, but the tutorial I linked you to will get you going, also with materials
Thanks for the images you provided! It gives me a good idea of what to do. I guess my problem is that I don’t have the specularity turned up high enough for most of my objects.
Regarding the GI settings, I have mine setup to irradiance map and light cache as well. However, I have drastically lowered my light cache subdivs and irradiance map quality to low because I am still doing test renders, and my computer is not that powerful. Would my GI problems be solved if I increased the render quality?
I’ve watched the tutorial, and he only used one light for the entire scene, and it’s a scene with broad daylight. It’s not exactly like mine, because I have the interior lights on.
Also, regarding the materials, I guess the only way for me to make it more realistic is to play around with the values…
For adding realism, I would randomize the cushions a little bit by sculpting in a few folds and bumps where people have sat and leaned on.
Here’s a timelapse of a couch AP did.
First, i like the idea for a living room. About improving; - I was gonna ask if it is window or a tv screen. It confuses a lot. Because it seems midday outside but there is no light coming in. You can put a sun outside. - And sofa’s texture is not harmonious with other stuff. You can use another color something light brown or beige. And the legs of sofa looks like they will drill the nice wooden floor. You can make them larger and softer. And another thing about sofa (sorry about that ) The edges are too sharp that can kill someone bleeding in the head. - Last thingis where the wooden floor and the walls are connected you can put some skirting boards. Sorry, if I was too harsh, just wanted to help you.
You have to get your lighting straight before you worry about the GI settings, and if I were you, I would set Vray’s settings back to default considering you said you “drastically” turned settings down(might have messed some settings up that you didn’t need to touch, or that are going against you). Okan has some great points as well, I originally thought your window was a TV as well The legs are a bit small for the couch, I would fatten them up. I absolutely love the light over on the right in your second picture, as well as the shadows. Really cool!
Okay, that sounds like a good idea. I’ll have to use the sculpting tools available in Blender to do it I guess? I’ll take a look at pictures of “butt marks” left on chairs and try to model that.
Don’t worry about the criticism! I appreciate your criticism, because I know that my picture really ain’t good at all, that’s why I’m asking for help, it’s not harsh at all. I want to create an evening scene, not exactly night time, something like the time before the sky becomes totally dark… Do you have any tips for this?
Thanks for all the tips on the sofa, I am working on the legs of the sofa… Will also change the sofa covers! Yeah I think the edges are too sharp as well…
Yup, I was thinking of skirting boards on the roof as well as the floor, but I thought I would concentrate on making the few items in my scene realistic first before going on to those smaller details.
Thanks for all the feedback! I’ll try to set them back to default, but I’m pretty sure I only played with subdivs under “light cache” and the presets under “irradiance map”. I also changed the noise threshold, but that’s about all I did to reduce the render times… I really need to do something about the window… how should I change it? I have a HDRI using a dome light on it as of now…
I made changes (mainly to textures and materials and lighting) and I’ve excluded some objects from the scene because I’m still working on them…
This is what I have now after resetting all my VRay settings to default (I did not change any settings):
I’m sorry the resolution is so poor, this is the default Vray setting and the presets are quite high. This simple scene (640x480) alone took about 24 mins to render on my i3-370m laptop…
Hi
I’m no expert of furniture but I think you might change your floor or furniture to make the two more homogeneous.
For me, the two things do not combine well.
even the table and the plant are not very realistic. maybe you should first make an accurate idea of the project. I know, it is not easy but you may find some reference in newspapers or on the net.
I don’t know why, but I will render the items individually later for a close up, and it looks more realistic that way somehow…
I think the TV cabinet matches the wall, but I agree with you, that the plant and coffee table spoils the realism, although I can’t exactly say why… Is it because their colors are too dark? But then again, the TV cabinet is dark colored as well…
So should I redesign my whole scene based on another reference?
Okay I have done a close up render of my coffee table, and I think it definitely looks a whole lot more realistic as compared to when I render the whole scene. Though I must say that the spec map is a little too high a value. Also, I think the TV console looks a lot more realistic in this close up? And the floor looks alright to me as well.
And this photo was rendered in 4 mins, with the irradiance map settings put to very low, and light cache subdivs at 100 and noise threshold at 0.03. Everything else is default.
I re-rendered the scene from another aspect, and I lowered the reflect map on the table. The plant also looks better close up. Though I think the floor somehow has some artifact of rendering. Either that, or my normal map for the floor is set too high, but this problem doesn’t appear in other photos…
As shown below, I did a region render of the TV with settings as follows: Irradiance Map preset low, Light cache 1000 subdivs, noise threshold 0.01, DMC sampler with a max subdivs of 16. The render result is below (render took 7 mins):