This is using Filmic, and I understand the reason for the grey background. I don't want to blow out the highlights in those transparent objects, so my goal is to composite this image onto a pure white background.

White balance is not the problem, exposure is. Adjust the exposure (Either in manual mode or use exposure compensation) to get the background white, and then adjust the lighting on the product to get it right.


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I am trying to do a simple product shot of a glass. I want the background to be pure white. I have tried both setting the world to white and increasing the strength and setting the world to transparent. I really am not able to get a white background, and I have some weird problems when using transparency. Half the render turns out white, the shadow catcher is transparent, the glass is white. I would really like the glass to look like glass with the non-reflective parts transparent, and I would like the whole background to be transparent as well. This way I can add the white background in the compositor and have more freedom.

I would really like the glass to look like glass with the non-reflective parts transparent, and I would like the whole background to be transparent as well. This way I can add the white background in the compositor and have more freedom.

As for the product shot render, what would be the best way to solve this realistically? That is, having a background that is as white as possible without washing out the entire shape of the glass? It does not need to be perfect because I can fix a smooth transition to pure white on the edges of the image in post so that it fits well on pure white backgrounds without having to be transparent at all.

Sorry for the late reply, here are some test renders I did for a project:

1- This is how I want it to be, I basically took the render with the alpha and placed it on top of a completely white background in GIMP.

render010801920 155 KB

2- This is when making a mix RGB node in the compositor with the factor set to the render output alpha and the color set to very bright white with value 3.5 to achieve (1,1,1) white in the end result.

render110801920 75.6 KB

And here is the node setup.

Screenshot (18)1109651 57.3 KB

Left is your suggestion (setting the plane to shadow catcher, then doing the compositing on a new file, import to photoshop with white background), right is the viewport with a solid white plane behind it.

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I want to create with ffmpeg a pure white video to use it as background. I mean a video that, played in a computer, you see as white. (In the examples I will pipe the output to ffplay so you don't need to delete the video later.)

For other readers, I should note that I get a pure white display when running the OP's original command. I can't diagnose what's happening on OP's setup but there should be no special steps needed to generate a pure white output from ffmpeg other than color=white.

The setup consists of pure white background with a beauty dish or an octa as the main light. To create it I use two lights, nothing more. The setup is very basic and even a beginner can get it right the first time.

I usually mount a 27" beauty dish with white interior and no sock on it on my main light. However if I take this setup outside, a 39" Elinchrom Deep Octa with only the interior diffuser or a parabolic umbrella will replace the beauty dish. They are much easier to travel and walk with. I place my main light above my camera and angled down 45-degrees toward my subject.

If you do not have a big enough softbox or umbrella for the background, a simple strobe at full power on a wall usually also does the trick. By blasting the wall with your light, you get a pure white background and should still manage to get a slight rim light effect. Be careful though if the wall is colored, as it might reflect the color and your rim light will become colored.

The quickest way to test if you have pure white or black in your image is by using a Threshold Adjustment Layer. Create a new Threshold Adjustment Layer and bring the slider all the way to the right. If you see anything on your image, those areas are pure white. If you bring the slider all the way to the left, the areas with detail are pure black.

Now that you know how to test if your image contains pure white or black it is time to make pure white. The easiest way to do this is with the Brush Tool. The edges of your image are the most important as they control how an image will look when uploaded online. Paint white over the areas of your image you would like to be lighter and use Blend-If to restrict this layer to the lighter areas of the image. This will make sure that you will keep Shadow detail while making the Lights lighter. Repeat this process over the image as needed.

You need to apply a material to the ground plane, I think one that makes it transparent. I found this video that I think shows that when they set the color to white: Merge background with infinite plane Vray Rhino

I finally got it !!! Thank you so much for your help and looking into it !

So in order to get the shadows with the infinite panel you just need to change the background colour to white (and add the infinite panel), keep the affect background option on. At least this is how it works for me for now.

Thanks again ! Happy rendering to everyone !

A white background is great because it offers a clean, minimalist, and versatile backdrop that allows the subject to stand out and adapt seamlessly to various design contexts. With PhotoRoom, you can add a studio light effect, change the background, add text to the image or add a realistic shadow to the main object.

A product image will look more professional with a light background. Increase your online sales by adding a plain white background to your product photo without using a real white backdrop. We also offer an API solution for our B2B clients.

This is an absolutely amazing tip! I just bought a few more lights so I will absolutely be implementing these tricks to make sure my background is super white in camera. Thanks for sharing your knowledge!

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As someone considering a redecoration project or the design of a new interior, you may not have considered white wallpaper in your plans. However, this is a serious oversight if your style varies towards more earthy, textural or contemporary designs. At Burke Dcor, there are hundreds of wallpaper selections in a range of white hues, prints, patterns, and textures. Each has notable qualities that could make it a focal point or flawless component to the overall decorating scheme.

The white wallpaper selections at Burke Dcor include such variations as White, Black, Blue, Red and metallic prints, faux surfaces such as painted brick walls or embossed papers meant to emulate old-fashioned tin ceilings. There are also other textured wallpapers in pure white, photographic print papers, lovely patterned papers of white on white, striped options and more.

When using white wallpaper, though, it is important to consider the overall effect. It is best to have some sort of print, pattern or texture visibly detectable in the paper as this creates some depth and distinction from the setting. For instance, choosing one of the faux brick wallpapers can allow you to paper a single wall to create a unique effect or to use it to create an entirely different feel in a more basic setting. Embossed papers also have a lot of power in your design scheme, and whether they are formal grids or more casual designs, they can help to tone down an expanse of white. The Burke Dcor gallery of wallpapers in white also features metallic papers and those made to emulate unique finishes, such as suede, crocodile and even marble. Each can be used effectively to add just the right amount of definition to a commercial or domestic space.

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Don't think of white wallpaper as simply a bright wash to apply over a faded or unappealing wall. It is a wonderfully potent design element that will actually boost the value of colors and hues in the dcor. When you choose one of the plain or textured papers in this selection, it is going to enable your design scheme to really stand out and shine.

Many websites by default use a white background for maximum contrast (with black text) so I am wondering if there is a case for a very light grey background to be used instead because it comes up as less glaring on the screen plus it also allows the designer to use white as a subtle highlight in specific user interactions.

Are there specific reasons why white is preferred over a very light grey background, and if so are there some strategies that can be used to mitigate some of the known issues for having white background?

The only benefit of choosing a white background over a light grey background is that it arguably gives you a broader range of text colours that you can use, and still remain within accepted usability and accessibility guidelines.

This last point is important to this question because in bright sunlight, on a mobile device, the white background paired with very dark text could result in a better reading/viewing experience because you actually need the brightness on the screen to be as high as possible. 006ab0faaa

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