POVRay Sample Usage of Video Clips

[f1lby]

'kin brilliant! Didn't know that could be achieved in Povray!

[YTBasiclife]

Thanks very much - I appreciate it

[Gyperboloid]

@YTBasiclife You must know programming or the language of POV-Ray to be able to work with it? I meen you don't only click some buttons, but work only with text?

[YTBasiclife]

@Gyperboloid That#s correct - you need to write SDL (Scene description language). It's very easy for any developer to pick up and most non-developers could get the basics very quickly by using the documentation

[Gyperboloid]

@YTBasiclife Huh, thanks for the reply xD

[MattyH101]

it would be awesome to have some reflective objects, then u could see your video being reflected on things, but that would take for ever to render

[YTBasiclife]

(wow - slow response sorry) but that's a fantastic idea - I think I'm going to have a go at it. I don't have the original scene any more so will start from scratch but I'll post it when it's done

[TheUnnamedGent]

That's pretty cool.

[atomicmx]

i didnt know you could do that in povray

[YTBasiclife]

You're welcome and I look forward to seeing your scene.

[TheTark]

The image_map works with bitmap image files (GIF, TGA, JPEG), so did you extract individual JPEG frames from the movie and then individually add each frame to the scene? I suppose adding the audio back in required some synching up with the video right? Would be interested in more details of how you added the bitmaps one-by-one to the scene.

[YTBasiclife]

I used FadeToBlack to convert a section of video to JPEG files - I numbered them sequentially (actually F2B Did), then in POv, I did:

<blah> {jpeg concat("TV/Image_", str(frame_number), ".jpg")

scale <blah>

}

all you need to do after that is make sure that the output is encoded at the same FPS as the original <-- That's where I failed

[TheTark]

Actually I was just thinking you should consider writing this up and posting it on the POVRay site. I am sure there are others who would use your idea if you didn't mind sharing the code. Just a thought.

[YTBasiclife]

I then re-added sound using TMPEGEnc

Of course, you can chuck some logic in to handle speeding up, slowing down, looping, etc... by playing with the frame number

I've been told that a program by the name of CSound can do sound mixing so as to replicate a 3D scene so it should be possible to make the sound source "move" with the tv/soundsource, but haven't investigated yet

I'm glad that someone found this of interest and I'd like to hear any thoughts you have on this topic.

Regards,

Simon

[TheTark]

I think for the YouTube community you are on the fringe. While I have some experience mapping JPEG files onto surfaces, so far my need stops there. I do envision a need in the near future to place POVRay rendered frame sequences (motion) into another POVRay sequence (motion within motion) to reflect self-referencing, but that's another message. My only thought at this time is "Good work." I'll keep you in mind when I get to my imaging task! Thanks for posting this.

[YTBasiclife]

Thanks. I used Apollo13 because I had the High-def Vista clip, so could get good quality, then 2-pass encoded everything, dubbed in the sound and *voila*

Sound could do with a little work of course...

[absulitcr]

Yeah, that idea of using Image Maps to render a video inside of a povray animation is not new, but even me that I know that trick never used in my animations, but your animation has a lot of quality, and that's nice XD