V-Ray 6 vs Corona 9 | What to choose in 2022???

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The eternal question - Corona or V-Ray? Let’s solve the mystery and talk about the differences between the newest versions of the software. Let’s start from the Frame Buffer. I will start with the interactive rendering in the frame buffer. As we use it every time during the production process, it is important to compare this in both render engines. I tested the interactive rendering based on this exterior scene on my PC. In Corona 9, it took around 9 sec to get the first look into the image while in V-Ray 6 it took about 45 sec. I’m using the default setting in both render engines by the way. It’s a big difference, it took 5 times more in V-Ray. In general, I prefer how the Corona Interactive Rendering works. As I start and stop my interactive previews many times during the production process, it extends my working time quite a lot because of that. To be honest, I didn’t expect such a big difference! On the other hand, in V-Ray Frame Buffer, we have some cool options that we don’t have in Corona. I’m talking here about the masks, f.ex. Cryptomatte or MultiMatteElement that we can use later on in the V-Ray Frame Buffer. In Corona, unfortunately, we do not have this option. We have a mask render element but we cannot use it in the frame buffer, only in the post outside the max. Anyway, it’s a big advantage for V-Ray as we can quickly make some adjustments inside one software. It is really helpful especially in projects when we do not have time for going forward and backward to the 3rd party software like Adobe Photoshop or Premiere Pro or DaVinci Resolve. We can easily select the objects we want the layer to be influenced by. Another thing that is missing in Corona is the Background layer in the Frame Buffer. So in V-Ray, we can add the photo background to the image. In this case, I will try something similar, so the sunset photo. It’s obviously not perfect yet. You can see these white borders around the palms for instance. It’s because it’s automatic and we don’t have so much control as in PS for instance but I imagine there will be improvements in the future. Also, we don’t have a Proportion Guide in Corona as we have in V-Ray Frame Buffer. However, this is not such a big deal for me as instead of using it in the Frame Buffer, I can still use the ImageCompHelperScript in the viewport which I prefer to be honest. Btw, if you want to get the script, you can download it from my website as it’s hard to find online. Link in the description below the video. On the other hand, what is pretty cool about the Corona now and V-Ray doesn’t have, we don’t have to struggle with setting up the Highlight Compression anymore as it’s automatically added in the default Tone Mapping. And it’s done with the ACES Output Transform layer. Other options in the Frame Buffer are pretty similar and we can get similar results, just the naming is different or there are some minor differences. The times when the lightmix was available only in Corona are long gone. Now, it’s available in both render engines. However, there are still some issues I would like to talk about. First of all, I think that lightmix in Corona works slightly better. Let’s say I set a specific color of the light. If I want, I can easily copy colors from different lights by simply dragging the colors. It makes the process way faster and it is easier to set up the desired effects for me. While in V-Ray, I cannot do this. I need to do them one by one. It is a quite big issue for me as I like to copy the colors of lights to have them in similar tones if I need to. Also, I found that when working on the extreme values of IES lights, it seems like V-Ray has some troubles in lightmix so we need to work around and change the values. You can see it here. It happens when I have the IES light in the scene but it is turned off or the value is close to 0. You can see that the intensity of the light is pretty strong as it’s pretty bright with a value of 1. If I would do the intensity 100 times smaller in the lighting settings everything will be fine. Here there is a bit different approach in Corona and V-Ray. V-Ray gives you more options to optimize the rendering time. While Corona focuses more on a user-friendly interface. Both options have their ups and downs, f.ex. in V-Ray the final rendering time can be lower if you set up the optimal render setting for a specific scene but in Corona we can get realistic results faster, at least for me, but it comes with the longer render times. I won’t talk more about this here as I created the videos where I explain the render settings in Corona and V-Ray for both visualizations and animations, so if you are interested check them out. I’ll put the links to all of them in the description below the video. For the render times, I did quick tests on the scenes from our Visualization Training. I’ll put the link to the course in the corner in case you want to check it out. Firstly, I compared the results of the images after rendering for 10 minutes. Here is how it looks. On the left-hand side, we have the output from Corona. After 10 minutes, the noise level is around 10%. There are 22 passes already rendered. The output is not bad if we consider the short rendering time but there is a quite big noise from the light here still visible. But it definitely will be enough for testing purposes. On the right-hand side, we have the output from V-Ray. There are already 72 passes finished. The noise threshold is equal to 0.014. The quality is not great, we are missing the details. I think that after the same time, the quality is actually worse in this case. But let me show you the second test. The next one is after around 35 minutes. I used the default setting for both scenes to make it easier to compare. But note that we can change some things and optimize settings, especially in V-Ray. Here is the output from the Corona. The noise is around 5.5% and 75 passes are rendered. Please note that this is before the denoising so it will look better. Anyway, we should render a little longer to send the final, high-res image but it will be good enough for the previews for instance. 35 minutes per render is actually a pretty good result! Let’s move to the V-Ray now. After more or less the same time, the V-Ray image is finished. It reached a 0.005 value for the noise threshold which is typically the noise we can use in final images. It rendered 197 passes in total. However, the quality is not good enough and the denoising makes the image miss the details. But in V-Ray, I would go rather with the bucket image sampler rather than progressive for finals. I set the noise threshold to 0.005 to get a similar result as previously to make the comparison easier. Here, you can see that the time and results are way better. We spend around 40 minutes rendering but we have much better quality. It’s not ready for the final image yet but it’s good enough for the previews for instance. Additionally, I rendered the image with the Irradiance map as a primary engine which is generally the quickest method. And it took only a little more than 23 minutes to finish it at the noise threshold level of 0.005. But you need to remember that it is not possible to use lightmix with these settings. So to sum up, we have much more possibilities in V-Ray to get good results quickly. Btw, I didn’t include V-Ray GPU here, so let me know in the comments if you would like me to do the video about rendering using it. Let’s talk about the Procedural clouds, as this option is available in both render engines now. It’s pretty similar in terms of use, the difference is that in v-Ray we have a clouds option in VraySun while in Corona we have it in the CoronaSky and we can adjust it in the material editor. What is cool, using the same values gives us the same results which can be helpful if you use both render engines and want to get a similar output. The naming of course varies slightly but this is not a big deal. However, in Corona, we have an extra option to create plane tracks called Contrails, and in V-Ray, it’s not available. But this is probably a matter of time. You can notice that the results are quite similar but it differs in the area of the sun. Let’s take a closer look. In V-Ray, we can see the clouds on top of the sun while in Corona the clouds are behind. I like what they tried to achieve in V-Ray but it doesn’t look super realistic yet. I’m sure it will be much better in future versions of the software. If you take a look at the effect in real life, there is more variety, sort of different opacity on the clouds in front of the sun. In V-Ray, it all looks the same, the clouds in front of and behind the sun. Btw, back to the differences in Frame Buffer, when we want to get the close-up render, in Corona we can use the 2D Pan Zoom Mode while in V-Ray we need to use the Real Zoom option in the Frame Buffer which I don’t really like as it’s easier and faster to navigate the preview through the viewport for me. Both render engines are great and have a lot of potential to help us create beautiful works. They have quite different specifics though and it all depends on what you need from the software. So I would say that V-Ray is better for exterior images while Corona is perfect for interiors. Also, V-Ray is great for large-scale, professional projects, especially when you show a bird's eye view of the city. On the other hand, Corona is great for detail shots in my opinion as it gives slightly more realistic outputs. Besides, there are some options that are available in Corona 9 now and there are not available in V-Ray, f.ex. shutter curves for motion blur or edge trimming in Chaos Scatter. Again, it’s probably a matter of time and I think we will see them in the future version of V-Ray. There are also some technical aspects you may want to consider. Corona uses only CPU rendering, so in this case, you need a good CPU to be able to work efficiently. V-Ray on the other hand has two options, that you can choose from. You can additionally use V-Ray GPU and if this is the case, you’ll need one or multiple strong GPUs to speed up your render times. If you want to learn more about computers for 3d artists, watch my video on this topic, I’ll put the link in the corner and in the description below the video. In terms of the final output, I prefer Corona. However, this is a personal choice so your opinion may be different. For me, it’s just easier and faster to get the desired effects in Corona. However, for people who use V-Ray more, it is propably not an issue. I’m not sure why it’s that but my images from Corona have this extra touch, I like them better! Btw, let me know in the comments if you found some other differences that are important for your workflow. Now, let me show you the pricing for both render engines. So we have Commercial and Educational plans for both render engines. In Corona, for commercial use, we can choose from two options while V-Ray has one additional option dedicated to bigger businesses. The price for Corona Solo is 26,90€ per month if you choose to be billed yearly or 34,90€ per month if you choose Corona Premium. If you choose to pay monthly, here are the quotes for both plans. On another hand, V-Ray offers plans for 34,90€ per month when billed yearly, 52,90€ or 44,90€. Here is how the prices look when you choose to be billed monthly. The V-Ray Enterprise plan has only an annual option though. What is cool, Chaos offers educational licenses for lower prices. Here are the options for both render engines. So to sum up, Corona is more beneficial financially. In general, I think they are pretty similar and we can create outstanding works in both render engines. Besides, if you know V-Ray, you can easily and intuitively learn Corona and vice versa. Also, both render engines are constantly developing and becoming more and more better and similar. If you want to learn visualizations from start to finish in both of these render engines, join our training. Also, if you want to learn more, watch my other videos. Here are my picks. Bye, bye!
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Channel: Arch Viz Artist
Views: 65,237
Rating: undefined out of 5
Keywords: tutorial, lesson, training, architectural visualizations, cgi, rendering, render, 3d image, 3d visualization, architecture, 3ds max, autodesk, vray, v-ray, corona, corona renderer, interior design, animations, 3d render, interior architecture, architectural visualization artist, camera setup, vray vs corona, v-ray 5, best render engine, corona render, best render engine for interior design, best render engine for architecture, vray 6 vs corona 8, vray 6 vs corona 9, vray or corona render
Id: bdbd16ml0Oc
Channel Id: undefined
Length: 12min 24sec (744 seconds)
Published: Tue Nov 15 2022
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