A two exposure 8bit file isnt an Hdri file. It holds very little exposure latitude. You need to bracket at least 4-5 exposures, than combine them to get a good amount of light information in a 32 bit exr/hdr file format.
You are right, but considering the way he set his workflow doesn't really matter, because he's using lights and geometry to bounce light around into the objects. The worse thing about this video is actually the lack of a linear workflow, you would never grade your hdri to match the grading of the plates, in fact in vfx, you'd work with LUT's that you could load into your renderer and or compositing app to check if it matches, but would work with the ungraded plates to output the renders, because you don't want to contaminate your outputs... There a few big misconceptions in this video, which are unfortunate, for they can be very counter productive in a proper vfx pipeline, still it is very informative and to be fair, to properly explain the whys and how's to do it accurately would take a longer than 36 minutes, because you'd have to go and explain colorspaces, LUTS, tonemapping, 8-bit vs floating color information and so forth...
@@luisbarros4587 Do you know of a tutorial or series of where all of that could be learned? So far, this is has been one of the better videos I've found that has opened my eyes a lot to achieving better vfx. But you seem quite knowledgeable and would love to know of additional resources that I could reference :)
@@luisbarros4587 Thanks for your insights. Curious, in making an hdri for lighting, could you shoot a perfectly exposed shot of the chrome or scene in RAW format, then change the exposure and export several for the bracketing effect? Now that I think of it (I haven't watched the entire video yet), is he just using the chrome ball for a quick reference in post or he also using it to generate the HDRI? From my experience, you need a very high dynamic range HDRI in order to get great lighting in 3D, at least in my engine, Corona Renderer.
Thanks for these great tutorials dude. You seem to post exactly the type of stuff I need and want to learn. It's hard finding VFX Redshift CD4 tutorials and explanations of the practicals needed to set it up! Cheers!
Thanks for another great video. Only $650 with shipping included for a chrome ball AND a grey ball? What a deal😆. I headed to my local craft shop to buy those jumbo chrome Christmas tree ornaments for $4.00 each (Canadian dollars, so that's about $3.00 US each). I painted one with a certified neutral 50% matte grey, and glued them to some 1/2" dowels. $650 vs $6.50. I've been using the Simple HDR app (Nick Campbell and company) to control my THETA S. It brackets seven images (covering 12 stops) that you have to merge yourself in Photoshop or Affinity Photo. It's a few minutes more work, but you're getting full HDRIs out of it.
Do you have examples of 3D renders you did with your workflow? I'm curious to see if you can reach the shadows quality and fidelity of a real scene and match it in 3D with a Theta. thanks
With the bracketing sure we dont have any additional mess with area light light, right? Because its got more dynamic range. Cmiiw, but noticed that you got work in 8bit rgb that gonna compress the dynamic range into a linear one, so its capping the light intensity.
How would color correction fit into the workflow? For instance, if they're filming in a flat or RAW profile, would they grade it for realism with a rec 709 profile, do all of their 3D work using that as a reference, and then composite the 3D elements before the final grade?
you can use that chrom ball and extract from it hdr. shot that in different EV then you need special software to wrap that prob to spherical projection and there youi go .
Really good video :-) Though after all that time setting up the chrome and grey balls, I'm surprised you didn't add some objects to the scene to test it out.
Yep, I've made some fairly decent, quick, hdri's using the 360x. Insta 360 x is good if you have a Samsung s8 or s9 because you can control the 360 remotely, not all android phones work though, so check if yours is compatible. Work flow is to shoot raw and with the manual function bracket through your ISO's. Stitch the two hemi's together with Insta's software and use either PTGUI or Luminance (free) to assemble your images into a proper HDRI .hdr or .exr.
This had a lot of great information in it. Something I was surprised about was the cost of kit with the spheres. $650.00 USD I understand that it is specialty equipment but it's insanely easy to replicate for well under that price.
@@braddlackeyy Very true. Actually, I'm taking some foam craft balls using some Bondo, sandpaper, wooden dowels, and a combination of a medium grey primer and chrome spray paint. All of which I have on hand. The only thing I don't really have is the case but Harbor freight has something comparable for a lot cheaper. the other brackets and pivot mounts are stuff I can either fabricate or already have too. So easy peasy stuff. Guess having my studio temporarily turned into a wood shop is going to be more useful than I thought.
Since i saw the Star Wars extras dvd with Tom Knoll with the chrome and grey ball, i wanted to see a tutorial about that. This is a tutorial...with balls.
It's unbelievable that a 360 camera with hdri exports a jpeg. Why couldn't it just export hdris with light sources so that you don't have to create your own lights in 3d?
@@VFXCentral ahahahahha this reply made my day. I am actually interesting in this hdri topic how to make it as it needs to get realistic scene. please tell us if there will be a new video.
Great content n explanation
A two exposure 8bit file isnt an Hdri file. It holds very little exposure latitude. You need to bracket at least 4-5 exposures, than combine them to get a good amount of light information in a 32 bit exr/hdr file format.
You are right, but considering the way he set his workflow doesn't really matter, because he's using lights and geometry to bounce light around into the objects. The worse thing about this video is actually the lack of a linear workflow, you would never grade your hdri to match the grading of the plates, in fact in vfx, you'd work with LUT's that you could load into your renderer and or compositing app to check if it matches, but would work with the ungraded plates to output the renders, because you don't want to contaminate your outputs...
There a few big misconceptions in this video, which are unfortunate, for they can be very counter productive in a proper vfx pipeline, still it is very informative and to be fair, to properly explain the whys and how's to do it accurately would take a longer than 36 minutes, because you'd have to go and explain colorspaces, LUTS, tonemapping, 8-bit vs floating color information and so forth...
@@luisbarros4587 Do you know of a tutorial or series of where all of that could be learned? So far, this is has been one of the better videos I've found that has opened my eyes a lot to achieving better vfx. But you seem quite knowledgeable and would love to know of additional resources that I could reference :)
@@luisbarros4587 So, you are saying, color grading comes last once we have the final raw render on top of the raw footage? And then we grade both?
@@luisbarros4587 Thanks for your insights. Curious, in making an hdri for lighting, could you shoot a perfectly exposed shot of the chrome or scene in RAW format, then change the exposure and export several for the bracketing effect? Now that I think of it (I haven't watched the entire video yet), is he just using the chrome ball for a quick reference in post or he also using it to generate the HDRI? From my experience, you need a very high dynamic range HDRI in order to get great lighting in 3D, at least in my engine, Corona Renderer.
I wonder if this camera can do different exposures manually
You've really opened yourself up for people to mess around and add stuff to your scene haha
EXCELLENT! Introduction my man!
Thanks for these great tutorials dude. You seem to post exactly the type of stuff I need and want to learn.
It's hard finding VFX Redshift CD4 tutorials and explanations of the practicals needed to set it up! Cheers!
No prob!! Glad you liked it!
Thanks for another great video. Only $650 with shipping included for a chrome ball AND a grey ball? What a deal😆. I headed to my local craft shop to buy those jumbo chrome Christmas tree ornaments for $4.00 each (Canadian dollars, so that's about $3.00 US each). I painted one with a certified neutral 50% matte grey, and glued them to some 1/2" dowels. $650 vs $6.50. I've been using the Simple HDR app (Nick Campbell and company) to control my THETA S. It brackets seven images (covering 12 stops) that you have to merge yourself in Photoshop or Affinity Photo. It's a few minutes more work, but you're getting full HDRIs out of it.
Yea I totally missed the bracketing :( dangit!
@@VFXCentral well you have the automatic bracketing with the two images, but just with the two images.
Do you have examples of 3D renders you did with your workflow? I'm curious to see if you can reach the shadows quality and fidelity of a real scene and match it in 3D with a Theta. thanks
With the bracketing sure we dont have any additional mess with area light light, right? Because its got more dynamic range. Cmiiw, but noticed that you got work in 8bit rgb that gonna compress the dynamic range into a linear one, so its capping the light intensity.
I bought a lawn ornament that works great for the chrome ball for $19.99 on Amazon, lol
Does sphere size matter?
How do you shoout your HDRI professionally, I mean fisheye lense and multibracketing. What's your workflow?
What possible if I do it without 360 cam? Just have a Chrome ball is enough or not?
i love the way you teach
Matt Damon teaching VFX now, nice
Thanks For The Awesome Information
How would color correction fit into the workflow? For instance, if they're filming in a flat or RAW profile, would they grade it for realism with a rec 709 profile, do all of their 3D work using that as a reference, and then composite the 3D elements before the final grade?
Curious about this as well
you can use that chrom ball and extract from it hdr. shot that in different EV then you need special software to wrap that prob to spherical projection and there youi go .
Why is that HDRI is a JPG????? You can't light a scene with 8 bit jpg
Thank you this was just what I was lookinh for!
Hi, so if I understood right the chrome ball is used as a reference to place the light source on its position(I'm sorry my English). Am I right?
There are no visible in reflection and cast shadow items in octane render
What should I do?
Much wisdom, wish I'd found this before my last shoot... Thanks :)
I want to visit your site. is there something wrong with your site? it won’t let me.
Getting it fixed
very nice. Awesome Information
thanks for tutorial. can you make full aces and hdri workflow tutorial?redshift c4d+nuke+davinci resolve
If you had shot the hdri with the macbeth chart would you paint it out before exporting the hdr to use in Cinema 4d?
Thank you.
So cool! Thanks for explanations!)
Thanks for this, THIS VIDEO IS GOLD!
I thought the grey sphere was supposed to be 18% reflective, not 50%.
@@SF-fb6lv yea I was an idiot. I might take this video down and remake it. I didn’t fully understand
@@VFXCentral No. It's a great video, I learned a lot...
thanks a lot men, saw your sisgraph presentation than finally found your channel. awesome...
amazing
Hi ! Thanks man. Would be cool to have an alternate video using ACES color profile to get the saturation and colors right easily.
Check out Andrey Lebrov for that
@@jovicasmileski yea he already did that video
Really good video :-) Though after all that time setting up the chrome and grey balls, I'm surprised you didn't add some objects to the scene to test it out.
does insta 360 work properly for HDRI?
Yep, I've made some fairly decent, quick, hdri's using the 360x. Insta 360 x is good if you have a Samsung s8 or s9 because you can control the 360 remotely, not all android phones work though, so check if yours is compatible. Work flow is to shoot raw and with the manual function bracket through your ISO's. Stitch the two hemi's together with Insta's software and use either PTGUI or Luminance (free) to assemble your images into a proper HDRI .hdr or .exr.
Excellent tutorial I don't use redshift but this was still very useful.
This had a lot of great information in it. Something I was surprised about was the cost of kit with the spheres. $650.00 USD I understand that it is specialty equipment but it's insanely easy to replicate for well under that price.
You can paint a grey ball and get a chrome garden ball at any home decor store.
@@braddlackeyy Very true. Actually, I'm taking some foam craft balls using some Bondo, sandpaper, wooden dowels, and a combination of a medium grey primer and chrome spray paint. All of which I have on hand. The only thing I don't really have is the case but Harbor freight has something comparable for a lot cheaper. the other brackets and pivot mounts are stuff I can either fabricate or already have too. So easy peasy stuff. Guess having my studio temporarily turned into a wood shop is going to be more useful than I thought.
Since i saw the Star Wars extras dvd with Tom Knoll with the chrome and grey ball, i wanted to see a tutorial about that. This is a tutorial...with balls.
amazing stuff man u explain this stuff very well!
🍿
because of you I had to go back to locations and take all the hdri photos again. Don't listen to him, she doesn't know what she's talking about.
Thank you
It's unbelievable that a 360 camera with hdri exports a jpeg. Why couldn't it just export hdris with light sources so that you don't have to create your own lights in 3d?
Thank you, great teaching video！
When to balls are more expensive then actual camera.
the balls are so expensive
Hdri tiff😂
I know. I was young and stupid. I need to delete this video and update it. lol. We can all laugh together
@@VFXCentral ahahahahha this reply made my day. I am actually interesting in this hdri topic how to make it as it needs to get realistic scene. please tell us if there will be a new video.