Thursday, September 25, 2014

Updates as of September 25, 2014

A few things to show for now. First up is a calisthenics test of the golem's movement:


Secondly is just a personal animation test I'm doing on the side while I wait for animators to test out the current generation of the rig:


Aside from a few adjustments that were made to the back chain system, and the testing, this rig is complete. At most, I'll remake the nCloth file for an animation.

Sunday, September 21, 2014

Update as of September 21st, 2014

Here is the current status of the golem. The vine script is finally done. A user can create a vine with controls in any direction they want, as well as adjust the thickness of the vine, allowing for either very thick or very thin poly tubes. Originally, there was an issue where the script would allow multiple copies of the locators used for the path, resulting in the script logging a KeyError out and mucking up the previous setup's system. To counter this, I have the buttons lock upon their usage, and unlock once a system is built. There is also a reset button, which clears out the current system being built. To be extra cautious, I have the script log a KeyError in case the user tries to use the same name again, informing them to enter a new name.

On the rig front, I've made some further modifications to the rig. To start, I have the limbs and body form in a sequence, rather than the bulk of the appendage moving into place. This can allow for more interesting animation possibilities. I've also changed how the IK controls on the arms work, allowing for a smooth transition between local and global space, rather than snapping between them. Below is a rough test animation I did to get a better understanding of how things are working on the rig.



While working on the above animation, I had caught a few things that needed correcting that hadn't been brought to my attention previously. A few tweaks later, and things were in a better state. Unfortunately, one of the animators I had asked to test the rig is no longer able to bug test, so I've set up a meeting with the animation department lead to hopefully find a replacement. If one can't be found, I have another contact that offered to help find an animator to test the rig out.

Less related to the rig and more of the textures and materials, I changed the brightness of the horns. The reason behind this is that I asked someone currently in the field to give some advice on how the current model looked. Ultimately, they recommended I make some changes to the horns, the vines, and the area around the boulder.

The horns were casting too much light on the surface directly next to them, so they recommended I bring down the intensity of the light coming from the horns. They also pointed out that my current light setup for test rendering needed work, So I swapped out the spotlight I was using for a directional light. After about two and a half hours of adjustments, I've come up with the images below. It mostly came down to ramping up a lot of final gather settings and playing with the lighting a bit.

With lighting

Without lighting

New directional light with increased final gather settings.

Friday, September 12, 2014

updates as of September 12th, 2014

At this time, I've corrected a few things that still lingered in the main setup:

  • Due to the blendshape system I used to create the eyes, rotating them in their socket cause them to open slightly when the flower is slightly closed. I've set the blends so that they shut off if the flower is closed slightly, but allow enough leeway so they still bend a little before hitting the cut off point.
  • I've added in controls throughout the small tree on top of the skull. This should allow for some more fine movement in the piece, and can be hidden or displayed via a new attribute on the head control curve.
A new feature I've added in was a more autonomous control setup for the tree stump.


The top directional control above the stump allows for it to shift about, while leaving the roots in their relative place. This control can switch between the local mode, which parents it to the leg joint of the main skeleton, or the roots control, which unlocks a global location control. This is also true for the base of the stump. By adding in a new control to the base, it can switch between the local control of the main skeleton, or a global control for the animator to place where they please.

Another addition to the rig is one at the head.


One of the animators I have testing the rig out requested the various branches have their own controls. I had at first thought of doing this in earlier stages, but had held off on it, thinking that animators would want to avoid as many minor controls. Looking back, it was a foolish decision, so now they've been placed at the various forks in the tree. I will need to update the nCloth file now, however, since the joint count has increased a fair amount.

Elsewhere, on the vine script front, I've made some strides. The curve itself can now match the positions of the joints in the standard version of the vine. I've also worked out how to add in attributes onto script generated controls that aren't just float numbers. Also, thanks to an expression a professor tested in the past when I had the vine scaling issue on the main rig, I've been able to scale up the script vines. It's still not a perfect setup, as paint effects cannot scale in the same way normal geometry does. However, I have found that, by adding in another attribute on the control, an animator can counteract over-scaling when attempting to re-size  the vine. While the control connects to the global scale of the paint effects, the additional attribute increases or decreases the pressureMax attribute on the stroke. This, in turn, can allow the paint effect to stay within a desired parameter of thickness.

The last aspects of the script I need to create are to be able to position the locators anywhere and have the base control be generated there, and the other controls for the rest of the vine to be moved by.