well this one is very old but still works great for the price of absolutely free, AAV Colorlab:

https://code.google.com/archive/p/colorlab/downloads

+1 for both @Steve_Rhoden and @eikira's suggestions. The current price for the paid tool is about half what I paid for it some years ago. Both are highly recommended.

You can use the Vegas Fx and drag to select an area instead of a point.

When I have a bride on a dancefloor or in a church, I click White Balance pointer on a bride wedding dress, but I get different white balance values. It sometimes is good but often it is not good.

That is an error in technique, not the tool. The bride's dress, and especially the veil, reflect UV. And high-gloss satin can also reflect the ambient source, which could be anything on a dance floor.

There are gray / white cards cheap on Amazon, and be sure they reflect away from the source when pre-balancing.

Fluorescent and mixed lighting have their own issues, so they need to be addressed separately.

FBMN's plugin is good.

The only issue for me -- its registration is way too complicated and you will need to do this from time to time (I do not know why, may be when you change something in PC as I do or when VP is updated or new version installed).

Have you tried the white point color picker in the new Vegas 19 color grading panel? Seems to me it works quite well.

The best white balance tools are only as good as their users. And they only solve one end of the color balance constellation.

I'm inclined to agree this is a technique issue more than a tools one.

Feel free to post a screenshot and we can provide ideas for how to color correct it. Whether something white actually looks white depends on its relation to the light hitting it. Choosing where you sample white balance from becomes important, and depending on the image, "white balance" may not be the best tool for the job.

I've never thought Vegas' native white balance was any good -- it's excessively complicated and gives poor results. Follow the FBMN WP link and look at his comparisons. Vegas' white balance stinks--at least in the version he was testing. Maybe V19 is better? (but probably not)

Vegas native white balance is simple- drag a box in the preview window over something neutral. Tweak with tint and temp if you need. I use it with decent quality neutral targets and it works.

There's a similar one that comes with NewBlue, ColorFast 2:

I cut my teeth on VP Color Corrector. Found it responsive and easy. No issues.

FBM White Balance tool was the next I tried, used during my apprenticeship with Weddings Boss, a One-Click Cure - Grazie Proof. Oh yes, registration is a nightmare.

Dabbled with AAVColorlab.

But now . . . Colorfast2, with its CC and then the extensive, extensive Masking opportunities is "nailed-in" to my Favourites FX Tab.

Colorfast2, with its CC and then the extensive, extensive Masking opportunities is "nailed-in" to my Favourites FX Tab.

I couldn't agree more. By far and away the most common VFX that I use is CF2. Before CF and CF2, I used VP's CC (Secondary), but to achieve what CF2 does in the one plugin, 2 or 3 instances of CC (Sec) needed to be used, each for a different masking setting - and sometimes VP CC was needed over and above that. But CF2 makes all of that readily available in the one plugin. Brilliant!

I do use VP Levels at track level to add just a smidge of red for Sony FDR-AX100E footage, and often VP CC at track level as well just to raise saturation and perhaps adjust the gamma a bit, but overwhelmingly its CF2 on the timeline.

Thank you all for all comments.

I thought that I should know more about White Balance.

Can you paste me the article link to the White Balance explanation in depth to let me know more about White Balance before next recordings. I mean what White Balance is in real, what has impact on White Balance, tips, recommendations etc. I would like to read more about this to avoid problems in the future.

Thank you all again for your thoughts, tips and recommendations and plugin links.

If you Google 'White Balance' there are heaps and heaps of websites about the subject such as this one: https://www.cambridgeincolour.com/tutorials/white-balance.htm

One approach when filming is to use a color chart/checker - kind of like a clapper board approach - at the beginning of every recording you make with your video recording (do I do this ... No) - but it does set a reference point to the ambient lighting at the time of recording.

The best approach is to set it properly in camera using a reference. If you're outdoors and the sun is out, the daylight setting (~5500K) will get you in the ballpark. If indoors, esp. with multiple sources of light you should correct for the dominant light source or some compromise between them if there are competing sources.

What's a good white balance card? Well, some are junk. You need one that's spectrally neutral under different light sources. Here's the only objective test I've seen of late: https://www.leeminglutpro.com/whitebalance.html

I use X-Rite myself.

Then what you do in Vegas will end up being a minor tweak you can use one of several tools to accomplish.

I spent years learning to transfer my film training to Photoshop, and I am most comfortable using three-point corrections, so when I get video with tricky lighting balance, I do my work in PS by imporing an image sequence from Vegas. With digital source, anchor the blacks first, then set the white point, then gently adjust the midtones.

Getting the white balance right during the shoot is critical; any so-called white balance in post is by nature destructive.

Here is an example of three-point correction in Photoshop. A Photoshop Action will apply this to your video image sequence in short order.

And I'm sure the OP can see the UV excitement in the bride's veil. That's why we don't WB there....