I have a few questions. Why does rendering take so long if the assets are all already on the screen. Like when editing a video and you change the lighting, the effects, the color, etc it all looks like it is finished. Then the rendering takes much much longer to complete. It looks like the scene is already drawn by the computer, so why does it need to do it again? When you render a scene multiple times, does it get faster to render with each sequence? Like if I decided to add in some different lighting would the scene need to render everything again, or would it only need to render the new stuff. Does rendering a bunch cause any quality loss, like if I render the frames then add in more adn render again would the quality of the frame be worse than if I had only rendered it once?
Very good questions. Keep in mind there are different renders and different methods so these are general answers, there might be excpetions. First when you are animating, what is on the screen isnt the final image. As hardware improves we get closer and closer to that, but what you see is a preview, a proxy. Rerendering a scene does not make it go any faster. The computer makes no assumptions and starts fresh. That is not to say there aren't tricks to make rendering go faster. One is to break the shot up into layers. Say you have a background layer and 3 characters and something is wrong with character 2. If they are all rendered separately then all you need to do is fix and re-render character 2, which is way less time than the whole thing. Each frame is rendered individually so adding more frames doesnt affect previous frames. Adding more elements into the shot should not effect quality but can slow down render times. More things to render, the more work for the computer. I hope this answers some of your questions. Again, these are general answers and may not apply to every circumstance.
if anyone can help me on that one^^, whats the difference of Rendering as of having the live video shown in Sony Vegas for example (obviously the live footage you see in SonyVegas is Rendered, right?) and then ''doing the Real Rendering'' by clicking extra settings and stuff (the rendering that takes couple hours for long HQ videos) -whats the difference here?
If I understand your question properly, you're talking about real-time rendering vs a rendering process. In one sense, there is no difference - they're both being rendered. When you render in real-time, the graphics card tries to do all the rendering on-demand. When you do you're "Real Rendering" the software does all the calculations, but it can take its time to do higher-quality and more accurate calculations. Real-time rendering is usually more limited. Software rendering can take several hours to render a single frame, where real-time has to render 30 frames/sec. Think of the difference between video game graphics and a Pixar movie, though the difference gets smaller as computers get faster and software gets more efficient.
Imagine that someday video games(or any similar things) can be rendered in an every single possible frames (which would be 1kkkkkk... frames) just like movies. That would be wow!
@@SpectralInkProductions I mean total frames not per second. A avarage movie has 250k frames according to the tutor, what about video games that wont use our hardware because its already rendered in every single possible image? Just wow. Thats what I mean.
@@irfancalsr7982 that wouldn't be practical to pre-render every possible frame of a video game. That is why hardware and software are pushing for movie-quality rendering at real time. This has other benefits as rendering for film and tv becomes faster and easier, where you are rendering from a fixed camera angle, but to try to do that in games, even if you could, would take away from the dynamic nature of games
How can a computer take 5 days to render 1 frame? Thats the only thing I dont understand in this video. My xbox or pc can render 30 or even 60 frames per SECOND! And to render only 1 frame from Frozen in takes 5 days? I know i am missing something, can someone explain?
Good question. Game assets are optimized to render that fast. You have a game character, like say in Gears of War, he could be maybe 30k triangles for Xbox 360. If I have a character for film, he could be way more than that. THEN we tessellate him, meaning we procedurally add more polygons to make it look smoother and to have detailed displacements. THEN maybe we add hair, and every strand gets converted to polygons so ever single strand of hair could be hundred of polys. Realistic simulated cloth need a lot of polys to capture all those realistic wrickles and folds that, in a game engine, are simply painted on in the normal map most often. Then we add true raytracing for reflections so every light source is bounced off of every object in the scene, things like final gather which bounces light off of every object to simulate how things render in the real world . . . anyway, point is it all ads up. In games a lot of this is simplified. As graphics hardware continues to improve, real-time rendering of film-quality assets is getting closer - see my friends at RedShift as an example - but the tradeoff to software rendering is higher quality and unlimited options at the cost of rendering speed.
To answer your first question, the console uses the graphics card much like your PC does. The creators of the video game (and the game engine if it's third-party like Unreal) spend a lot of time making sure the game doesn't choke the graphics card. Anyone who's read about the drop in FPS in Cyberpunk on lower-end consoles knows what happens when the developer fails to do that. Hardware rendering is fast, but a lot of work goes into making sure you are rendering at realtime. To answer your other question, we perceive 3D because we have two eyes that view the world from a slightly different position. Say you're looking at a character in a 3d movie. The character will look like it's standing out in 3d space away from the background because the image on the left eye is shifted compared to the right eye. The bigger the shift the further forward (or backwards if they're shifted in the other directions) the character appears.
That's impossible to answer as there's a lot of variable left to solve. what renderer are you using? how complex are your shaders? your models? your lighting? all of these, and more, effect rendering time
The word rendering doesn't exist in Spanish, which makes it hard to translate because is subsidized by other words, that is why translations aren't always perfect and they end up saying different meanings that are correlated, many are very incorrect translations because this mistakes.
Spectral Ink i don't know anymore i put a track on a timelapse and i did render to 1080 p and it actually improved a bit it was brighter in darker spots all in all looked better but it was now like 1.2 gb insted of 400 mb
TaRee kylefraser When you're uploading a say a video that's 15 minutes and it's non-rendered it will actually take more than a day to actually upload it. When rendered it can take up to an hour or so. I must admit that i do not understand the full concept of rendering but i assume that's how it is. I apologize that i cannot explain in full detail.
Well, you are missing resolution. The software would need to extrapolate from the existing pixels to fill in the missing data, but I know some studios have done things like that on purpose to make their final image appear softer. So I guess it really depends on the final effect you are looking for
@@EnemiesAroundMe point I was making, if you have a video to edit, then it's already been rendered. What you do with it after that is up to you. You can edit it and re-render for sure. If you are asking if you should render raw, unedited footage then no, it's already rendered, it would at best be redundant and waste time.
How to make rendering faster? Why does it took so long? Does using super quantum intergalactic computers make it faster like for minutes? What does rendering actually mean I watched it coz i tot ill know the answer from the video.
Some good questions there. Lets start with what makes rendering faster. Basically there's three ways to spead up rendering - more efficient software, more powerful hardware, or simplifying or optimizing the scene. Let's look at hardware and also answer your second question. Every year hardware gets faster and more powerful. I have more computing power in the cellphone in my hand than was available to the entire US government in the 80's. Stronger CPU or GPU chips (depending on how you are rendering) means the same scene can be rendered faster or you can render a more complicated scene in the same amount of time. In terms of quantum computing, they are still very experimental but maybe someday they will be available and then render time could dramatically drop. And your final question, as I said in the video, rendering literally means "to draw". When a computer renders its drawing an image, either to the screen or to an image file.
@@SpectralInkProductions oww i get it now. So basically pixar's animation would take so long to render because of the details and stuff. Its like leonardo painting the mona lisa vs me. If i paint it it will be fast but it wouldnt even look like a human hahaha. So I represent the crappy computers and advance computer represent leonardo. Did i get it right sir?
@@alexilaiho8534 That's one way to look at it. Look at the original toy story and compare it to the original. The computing power they had then vs now is so tiny. Then the software to render has gotten more complex to better capture how things look in the real world. Just look at Sid's dog in the original and compare it to the dog in part 3. For the original toy story had no way to render hair or fur. All that adds complexity to the scene and slows things down. The irony is, the more powerful the computers get, the more we make them do.
Rendering literally means "to draw". The computer is either rendering to the screen like in a video game or rendering to a file such as when you are making a movie
ASER ox Playing a game, even mastering it, doesn't mean you know how it works under the hood, just as knowing how to drive doesn't make you an expert in the physics and mechanics of internal combustion engines. This series is for people who know very little about how games and films work but wish to learn.
Tnx you are pretty much the only video that tells wat rendering actually is
Great video. Very informative with excellent use of examples to help explain what rendering is. Well done! 👏🏻
Thanks. Very informative without making me feel like an idiot.
Great explanation mate, thanks!
I still didn't understand what rendering is :(
+thecasualepsilon computer drawing and just leave it that :D
+telefonkirtys Why do I have to render videos?
+vSnag because if you didn't, they would be blank. A video is a series of still pictures. Each picture has to be drawn, or "rendered" by the computer.
You mean after editing?
Neither do I. :-)
Didn't what I come here for, but i definitely learned something.
Ay I like this guy :D
Thanks for normally telling what rendering means I know @mark breuer said the same thing but I had to say it too :D
I have a few questions.
Why does rendering take so long if the assets are all already on the screen. Like when editing a video and you change the lighting, the effects, the color, etc it all looks like it is finished. Then the rendering takes much much longer to complete. It looks like the scene is already drawn by the computer, so why does it need to do it again?
When you render a scene multiple times, does it get faster to render with each sequence? Like if I decided to add in some different lighting would the scene need to render everything again, or would it only need to render the new stuff.
Does rendering a bunch cause any quality loss, like if I render the frames then add in more adn render again would the quality of the frame be worse than if I had only rendered it once?
Very good questions. Keep in mind there are different renders and different methods so these are general answers, there might be excpetions.
First when you are animating, what is on the screen isnt the final image. As hardware improves we get closer and closer to that, but what you see is a preview, a proxy.
Rerendering a scene does not make it go any faster. The computer makes no assumptions and starts fresh. That is not to say there aren't tricks to make rendering go faster. One is to break the shot up into layers. Say you have a background layer and 3 characters and something is wrong with character 2. If they are all rendered separately then all you need to do is fix and re-render character 2, which is way less time than the whole thing.
Each frame is rendered individually so adding more frames doesnt affect previous frames. Adding more elements into the shot should not effect quality but can slow down render times. More things to render, the more work for the computer.
I hope this answers some of your questions. Again, these are general answers and may not apply to every circumstance.
@@SpectralInkProductions Thank you for replying, and those answers were helpful!
Tho this video is from 2014 in 2020 it is same and VERY VERY hepfull Thank you so so so much @spectral ink
im going to subscribe :) and stay safe
if anyone can help me on that one^^, whats the difference of Rendering as of having the live video shown in Sony Vegas for example (obviously the live footage you see in SonyVegas is Rendered, right?) and then ''doing the Real Rendering'' by clicking extra settings and stuff (the rendering that takes couple hours for long HQ videos)
-whats the difference here?
If I understand your question properly, you're talking about real-time rendering vs a rendering process. In one sense, there is no difference - they're both being rendered. When you render in real-time, the graphics card tries to do all the rendering on-demand. When you do you're "Real Rendering" the software does all the calculations, but it can take its time to do higher-quality and more accurate calculations. Real-time rendering is usually more limited. Software rendering can take several hours to render a single frame, where real-time has to render 30 frames/sec. Think of the difference between video game graphics and a Pixar movie, though the difference gets smaller as computers get faster and software gets more efficient.
wow, thanks for the quick answer. That pretty much covers what i was seeking for :D glad you understood my question^^
Imagine that someday video games(or any similar things) can be rendered in an every single possible frames (which would be 1kkkkkk... frames) just like movies. That would be wow!
Movies are rendered at 24 fps. Video games render anywhere between 30 and 60 fps depending on the type of game.
@@SpectralInkProductions I mean total frames not per second. A avarage movie has 250k frames according to the tutor, what about video games that wont use our hardware because its already rendered in every single possible image? Just wow. Thats what I mean.
@@irfancalsr7982 that wouldn't be practical to pre-render every possible frame of a video game. That is why hardware and software are pushing for movie-quality rendering at real time. This has other benefits as rendering for film and tv becomes faster and easier, where you are rendering from a fixed camera angle, but to try to do that in games, even if you could, would take away from the dynamic nature of games
very helpful!
How can a computer take 5 days to render 1 frame? Thats the only thing I dont understand in this video. My xbox or pc can render 30 or even 60 frames per SECOND! And to render only 1 frame from Frozen in takes 5 days? I know i am missing something, can someone explain?
Good question. Game assets are optimized to render that fast. You have a game
character, like say in Gears of War, he could be maybe 30k triangles for
Xbox 360. If I have a character for film, he could be way more than
that. THEN we tessellate him, meaning we procedurally add more polygons
to make it look smoother and to have detailed displacements. THEN maybe
we add hair, and every strand gets converted to polygons so ever single
strand of hair could be hundred of polys. Realistic simulated cloth need
a lot of polys to capture all those realistic wrickles and folds that,
in a game engine, are simply painted on in the normal map most often.
Then we add true raytracing for reflections so every light source is
bounced off of every object in the scene, things like final gather which
bounces light off of every object to simulate how things render in the
real world . . . anyway, point is it all ads up. In games a lot of this
is simplified. As graphics hardware continues to improve, real-time
rendering of film-quality assets is getting closer - see my friends at
RedShift as an example - but the tradeoff to software rendering is
higher quality and unlimited options at the cost of rendering speed.
Thanks for the extra info! :)
Keep up the good work!
how do consoles render in real time? why do we need frames for each eye separately in 3D?
To answer your first question, the console uses the graphics card much like your PC does. The creators of the video game (and the game engine if it's third-party like Unreal) spend a lot of time making sure the game doesn't choke the graphics card. Anyone who's read about the drop in FPS in Cyberpunk on lower-end consoles knows what happens when the developer fails to do that. Hardware rendering is fast, but a lot of work goes into making sure you are rendering at realtime.
To answer your other question, we perceive 3D because we have two eyes that view the world from a slightly different position. Say you're looking at a character in a 3d movie. The character will look like it's standing out in 3d space away from the background because the image on the left eye is shifted compared to the right eye. The bigger the shift the further forward (or backwards if they're shifted in the other directions) the character appears.
I learned something, thanks
Всё понял , всем спасибо ))
very informative!
Thank you.
You're welcome :-)
Still don't get it. When using special effects, why is rendering temporary?
Well made video. Cheers
how much time will it take time to render a 1 hr 30 min movie in 1080 with a laptop of $1k price range please answer me
That's impossible to answer as there's a lot of variable left to solve. what renderer are you using? how complex are your shaders? your models? your lighting? all of these, and more, effect rendering time
Great video! Loves the jazzy interludes :D
XBox One isn't typically 60fps (something for the haters !) .... ok I'll come clean.. I bought one.
The word rendering doesn't exist in Spanish, which makes it hard to translate because is subsidized by other words, that is why translations aren't always perfect and they end up saying different meanings that are correlated, many are very incorrect translations because this mistakes.
sorry, not sure how I can help with translating it form English.
Spectral Ink I just posted this comment just to give a different point of view, just additional data here
but what does it do when someone renders a video does it improve its quality orr ?? ._.
Spectral Ink i don't know anymore i put a track on a timelapse and i did render to 1080 p and it actually improved a bit it was brighter in darker spots all in all looked better but it was now like 1.2 gb insted of 400 mb
TaRee kylefraser When you're uploading a say a video that's 15 minutes and it's non-rendered it will actually take more than a day to actually upload it. When rendered it can take up to an hour or so. I must admit that i do not understand the full concept of rendering but i assume that's how it is. I apologize that i cannot explain in full detail.
Spectral Ink Ah, thank you for pointing out my mistake there, i appreciate it!
Thank you sir
I understood :)
Is ok to render in 1080 if i recorded the video with 720?
Well, you are missing resolution. The software would need to extrapolate from the existing pixels to fill in the missing data, but I know some studios have done things like that on purpose to make their final image appear softer. So I guess it really depends on the final effect you are looking for
Thanks.
should i render an unedited video?
Well, if you have a video to edit, it's already been rendered
@@SpectralInkProductions so no benefits on rendering if i just wanna upload a gameplay with no edits ?
@@EnemiesAroundMe point I was making, if you have a video to edit, then it's already been rendered. What you do with it after that is up to you. You can edit it and re-render for sure. If you are asking if you should render raw, unedited footage then no, it's already rendered, it would at best be redundant and waste time.
How to make rendering faster? Why does it took so long? Does using super quantum intergalactic computers make it faster like for minutes? What does rendering actually mean I watched it coz i tot ill know the answer from the video.
Some good questions there. Lets start with what makes rendering faster. Basically there's three ways to spead up rendering - more efficient software, more powerful hardware, or simplifying or optimizing the scene. Let's look at hardware and also answer your second question. Every year hardware gets faster and more powerful. I have more computing power in the cellphone in my hand than was available to the entire US government in the 80's. Stronger CPU or GPU chips (depending on how you are rendering) means the same scene can be rendered faster or you can render a more complicated scene in the same amount of time. In terms of quantum computing, they are still very experimental but maybe someday they will be available and then render time could dramatically drop. And your final question, as I said in the video, rendering literally means "to draw". When a computer renders its drawing an image, either to the screen or to an image file.
@@SpectralInkProductions oww i get it now. So basically pixar's animation would take so long to render because of the details and stuff. Its like leonardo painting the mona lisa vs me. If i paint it it will be fast but it wouldnt even look like a human hahaha. So I represent the crappy computers and advance computer represent leonardo. Did i get it right sir?
@@alexilaiho8534 That's one way to look at it. Look at the original toy story and compare it to the original. The computing power they had then vs now is so tiny. Then the software to render has gotten more complex to better capture how things look in the real world. Just look at Sid's dog in the original and compare it to the dog in part 3. For the original toy story had no way to render hair or fur. All that adds complexity to the scene and slows things down. The irony is, the more powerful the computers get, the more we make them do.
What is modelers sir?
Maybe this will help explain - ua-cam.com/video/rFisutyTaT8/v-deo.html
I suggest removing the weird noise of key words and just using a pop up. its really irritating to listen to every few seconds.
No! dont!! i love it!!! KEEP IT!!
I still didn't understand what is rendering mean ???
Rendering literally means "to draw". The computer is either rendering to the screen like in a video game or rendering to a file such as when you are making a movie
Very Nice, Very Nice :3
thanks
thanks.
rendering means "to draw"
Yes, it does.
Thanks
glad I can be of help. you can see more Newbies Corner here, and for tutorials check out our UA-cam channel or our friends at 3dMotive :-)
Thanks O/
Perfekt video
There was this kid in school who was always saying rendering changed resolution...
Nice lies
+NetFlakes "Nice lies" to that kid, or...?
Spectral Ink probably.
i didnt chose world of warcraft over social life to be called a newbie
ASER ox Playing a game, even mastering it, doesn't mean you know how it works under the hood, just as knowing how to drive doesn't make you an expert in the physics and mechanics of internal combustion engines. This series is for people who know very little about how games and films work but wish to learn.
GANDAALLFF!!
+Spectral Ink 00.58
You look like the guy from Tim and Eric.
E
i got this :)
Speech therapist
learnt nothing from this
sorry we couldn't help you. fortunately many people have learned quite a bit from it