Edit to aniamtic

Here's my animatic with some more animated previews in, with a few unecessary shots cut out.

Render setup details

Some quick details of my render setup while i'm rendering a scene out.

Once i had lit my environment to my satisfaction, of which the render times were running about 6 mintues a frame, i decided to do some tests with the characters in there. Adding the characters caused the per-frame render time to shoot up to about 11 minutes. This was unacceptable, so i decided to render the characters and environments separately. Since my camera didn't move in very many shots, this meant that i saved a lot of render time, as the characters only took roughly 2-3 minutes a frame.

There were two main challenges in doing this - light matching and shadows. I'll briefly cover the differences between my two lighting systems, to explain why i would need to light match. The environment lighting had 3 main types of light. Firstly, there were a number of photometric area lights used as the strip lights for the ceiling. These would provide a lot of fill light for the scene, and i also set them so that any camera that looked at the ceiling would see their area as white rectangles, like a real ceiling light. Using photometric lights instead of normal mental ray ones enabled me to use photometric light distribution lattices, which emulate the way lights shine out of their housing (in this case through a piece of textured plastic).

Next i had a setup of a skylight and some MR Sky Portals. I set up the skylight to have a gradient running from a light violet to a pastel orange. These lights give some vibrancy and colour to the area around the window, and make some contrast with the darker corners of the room. Thirdly, i made a MR Area Spot light, and put it very, very far away from the scene. This would simulate the direct sunlight shining into the classroom. I used an mr area spot instead of a basic direct light because i wanted to use Ray Traced Shadows, because of the softer edge it could give to the shadows. In the screenshot below you can see the lighting setup.

This lighting solution was great for my environment, but lots of photometric area lights combined with all of my characters' high resolution textures and hair was producing too long render times. Instead, i started with a basic 3 point lighting system, and then added a number of extra fill lights, to simulate the ceiling lighting, light spilling in from the windows and the global illumination used in the environment render.
 

 

Matching the light between the environment and characters was simply a case of fiddling with the light settings until i had one i was happy with, making sure the main light came from the same direction as in the scene, but also making sure i had nice detail on my characters. I could then comp this together in after effects. Below is an example of a shot i comped together.

 

Initially i rendered the characters in an empty scene, however this caused problems. When i comped the characters on top, they looked like they were floating on top of the scene, rather than sitting in it, even if the light matched convincingly. In order to solve this, i had to put the scene geometry back in, but set it all up with matte/shadow material, and re-render. This gave a much more convincing composition. Below you can see and example of a shot with the shadows included:

A further problem i had with this compositing approach was their hair, especially the little girl. When Max renders out the objects in the scene that are translucent it assigns the colour of the background to any pixels that are not completely transparent. I had initially set this up as a blue colour, to simulate the sky on any shots that had any sky visible. You can see the problem in the shot below:

 

The solution to this problem was to use the rendered shot from the background as an environment map. This would make any translucent parts already have the correctly coloured pixels behind, and make the characters fit in the scene better. The same solution ensured that the priest's reflective glasses would reflect the right colour (although the image would not be physically accurate, as the geometry did not exist). The shot below gives comparison. The saved stills would still have the alpha channel on however, as this would enable more control at the compositing stage.

A completed render of a frame from my animation.

some more shots animated

I have now animated a few more shots. Again, there is still a little tweaking to be done for each. I also tested rendering one of the sequences, and that blasted skin artifact problem has resurfaced, only it moves between frames, making this horrible skin flicker! Nightmare...

Preview Shot

Was having some render problems with the skin on my characters when i was using my desired lighting setup. Here's a picture to illustrate the problem:

 Spent the best part of a day trying to solve the problem, and then looking into alternatives, only to discover that i HAD to use the specific lighting setup i wanted to get nice looking results. In the end i fixed it by tweaking random settings in the material, and then putting them back to what they were, leading me to believe it was just a bug or glitch in the material, and by fiddling i managed to reset the problem.

Either way, i've managed to animate my first shot. I'm not entirely happy with some of the motions on the characters, but it'll do as a first draft. Below is the video preview, as well as a quick frame that i rendered:

Hands reference footage

This is reference footage for the hands of god for the chalk board sequence in my animation:

NEw animatic edit

Following on from a previous session i had with a tutor, i decided to implement a few changes top my animatic, specifically to add some 2D animated sections on the chalkboard to engage the watcher in what they draw, and some other changes to make the story read a bit clearer. Here it is

I have also been finally finalising my scene, do lots of little fiddly bits to ensure it's 100% ready to animate, which i am going to start today.

Environment Lighting

These past few weeks i have been finishing texturing my environment, adding some detail to the parts of it that are visible, and adding some character with some wall displays. On top of that, i have been lighting my textured environment, and have reached a render that looks quite nice:

This is using a bunch of different lightings and some global illumination and final gather settings. The drawers on the right are not really seen in many of the shots, so their texturing is very basic.

I have also rigged all of my characters to an acceptable standard, and they are now ready to animate! Unfortunately, some problems have arised with the lighting that i'm using causing unacceptable artifacts on the skin shader of my characters, as seen below:

I'm currently seeking advice from the internet, and may ask some tutors at some point, although none of them work in my program, so are unlikely to be able to solve this specific issue.

I'm also taking stock today, taking the amount of time i have remaining into account and editing my animatic. I'm going to refine and finalise all my camera shots, maybe take a few out if i can. At present, i am confident i can finish in time, with my biggest worry being the rendering. If nothing else goes wrong with the renderer this shouldn't be too much of an issue, but i have just upgraded my PC to be sure, and now have access to two high powered rigs to run off my renders.