Red Bikini Torii Walk (CGI Ray-Traced VR180)

She's a comin'! All visual and music production, original character and score, by SkinRays. The animation is an adaptation of several commercially available walk cycles.

Please join at patreon/skinrays

Sure there's been walks before, this one is a bugfix and improvement. So it is the pinnacle of the clothed walks by SkinRays! At least, as long as a particular eagle-eyed Patron, agrees! Many thanks go out to this person. For unclothed walks or to download this 2160p 60fps video, see patreon/skinrays.

Technical info:

Original walk cycle 40 frames at 30fps. This has tweaks to several motion paths and is upconverted to 60fps by spacing out the keyframes and fixing the interpolation between them as-needed. One tricky part is the end of the walk cycle, which requires interpolating with the beginning of the cycle. The whole world has to be designed in such a way that you can shift the camera by one cycle (back to the beginning) and it looks the same. It isn't perfect if you notice the shadows between columns to the far right and left. If I could render 76 cycles, then the world could be anything. But that would take 76 times longer to render (each frame takes about 2 minutes, 1 minute per eye. This is using iRay on an Nvidia 1080 GTX 8G.)

She actually walks at 63fps since 60fps is a tad slow. That also syncs to the music ("WalkFunk" by SkinRays.) But since I doubt YouTube would display a 63fps video, I configured ffmpeg to ingest at 63fps, but write out at 60fps. Having fought with 3:2 pulldown displaying movies on TV (multiples of 24 vs multiples of 60) I was worried whether this mismatch would look bad. But ffmpeg is truly amazing software that treats a movie like a continuous volume of interpolated spacetime, and just generates the moments you need, at the rate you request them! "There is no frame." Props to the wizard programmers behind x264 and ffmpeg.

This is the first walk where she actually moves. This means the world does not move, unlike every walk posted before this one. The advantage is that the camera can move smoothly beside her rather than match exactly the ebb and flow that is the forward component of human walking. The other way would be to calculate the difference between linear and that ebb and flow component, and only animate that difference.

The camera, and the woman, must snap back to the beginning of the walk cycle (every 1.3 seconds). For this to work, the entire world must appear the same when shifted by one walk cycle (123.4 cm in this walk cycle.) This limits the kinds of scenes you can use in a walk cycle movie. Here I have repeating torii, and a background so far away it doesn't need to move. I also don't use a texture on the red carpet, but have made other videos where I do use a repeating textures. It must repeat every 123.4 cm exactly! This means lots of time tweaking one tiling direction in the texture which thankfully can be accurate to several decimal places. It isn't a monotonically increasing or decreasing exercise on the tiling dial; try it sometime for a fun and frustrating activity. I'm sure there's an equation to find the right answer but sometimes you find yourself spinning dials instead. As the sun sets.

The last Torii in the distance needed special behavior. She obscures it in this camera angle, but if you could see down the hall through it, you would see its portal (with clouds beyond) shrink as she walked, then pop up to original size when the walk cycle repeats. Actually you wouldn't see that! Here's why: I animated its size to compensate. It maintains constant portal size. There were some tricky parts to thisbut it can't shrink so much that a new portal opens up between it and the torii in front of it (sliver of light at the top edge of the picture frame if you can imagine that.) I had to animate the thickness of the frame as well to prevent that. And then after all that, she obscures it anyway! I like this angle of her, and that is more important than showing off the trick with the final torii, but might animate some more angles later.

See the "about" text for this channel for disclaimers. https://www.youtube.com/channel/UC5yKHaLle0Yvo2okr9-6j1Q/about

Видео Red Bikini Torii Walk (CGI Ray-Traced VR180) канала Skin Rays