Betis's Blacksmithing

I have just submitted Eye of the Storm, which started out as a change to a filter I started a long time ago. I realized that what I had done looked supremely excellent and also like the eye of a hurricane or storm or whatever, so then I did it. After 3 days of fine tuning and making the controls intuitive and randomizable, here it is!

(To clear up any confusion, this is supposed to be a view of the sky from the ground looking up through the clouds)

And with the right settings, a nice sunny day is a naturally occurring phenomenon!

yeppers

I love it. This will be very useful!

Yesssssssssssss

Awesome skies there Betis

I want to offset something, be able to apply an effect, then offset it again with negative values to "unoffset" it.

The filter looks great, but the clouds setting is the icing on the cake. Very realistic!

Quote
Betis wrote: Basically one time I thought of an idea of how to do radial motion blur, and the idea was to take a normal image, un-spherify it, apply motion blur, then re-spherify it. It worked and I was happy. smile:)

I think I understand now..I'll have to kick it around in the head and do some experiments.....Don't expect any scripting thou I'm not so good at that right now...


btw If you have not seen this filter or played with it yet it is an awesome filter by
Constantin...Maybe there might be some ideals there..
Mozaic Code

And here's the snow-map without the source image:

The problem is it's really slow, that image took a whole minute or two. It uses a big tree of noises and curves and offsets to lerp together

yeah, but not by too much, it's pretty limited and inefficient right now, I'm thinking about remaking it

I still hate anything slower than 30 seconds

now that you say it, yeah. I blend 16 point-states of different phases of a noise from like -100 to -90 and if you could alter that range from -100 to 100 to even have a looping animation.

for now I want to work on the speed but I could post the filter for you to mess around with.

Snowfall.ffxml

also I would suggest using the sliders plugged into an "Add" component

and here's the image with the new (heavier) snow:

Of course, the lifesaver isn't a landscape so it looks a little funky, but if it was replaced it would look better

Okay been working on Night, but this time from scratch. trying to do faster algorithms and better lighting models... which I still need to work on. So this is Night v2, I won't be replacing the one in the library

Here at quater-moon phase is when the texturing works the best


Here the sun is coming in as a direct result of high phase (waning crescent)


And here, Baily's Beads occur naturally as a result of a total solar eclipse.

I was thinking about making the filter all about solar eclipses instead of a whole night-sky filter...

Yeah but at other phases, the derivative component starts to break pretty quickly. I need to somehow fake a 3D light model either using LUA or other clever trickery

I get my inspiration straight from reality! Which leads to not very fast rendering, but more convincing.

For example I have conceitedly fell in love with my glow technique, which is to take 2, 4, or 8 blurred samples of the image and lerp each one tournament style. like radii 1 and 2 get lerped, 3 and 4, 5 and 6, 7 and 8. now I have 4 lerp components. I then do the same thing. I lerp lerps 1 and 2, and 3 and 4. then I lerp those and add it to the original image.

The texturing is pure magic from the derivative component though. The texture mapping was something I stumbled upon while messing with the scale component. plug the height-map you want to warp the texture into the scale input, then set percentage to 50. simple as that!

as for the sun, all the magic is in the HDR pipeline. because blurring maintains HDR values, I have the sun at a brightness of about 50, although I would think it would be higher. The HDR values are probably very logarithmic or something though