So 2015… My final year of TAFE…
At the end of this year I will hopefully be walking away with a Bachelors degree in 3D and Animation… Looking at finding work overseas as well.
So naturally now all the TAFE work posts are going to start. For my elective this year I have chosen to do Lighting/ Rendering and Compositing. So there will be a lot of posts relating to those things.
I also have to develop my showreel this year and plan to document the process as I go. So hopefully there will be some interesting things regarding that with pipeline and concept.
Wish me luck and hopefully enjoy :)
So it is day 5 of the daily draw for 2015, here are two of the drawings I have done.
Just a little run down on what has been going on;
Day 02: Due to personal reasons, day 02 had to be skipped.
Day 03: With day 02 being skipped I wanted to try and work on some digital painting as I don’t feel 100% drawing like this, so I took this chance to try and push that. Time constraints meant I couldn’t finish the work so I uploaded a W.I.P to show I had worked on something. I feel this way of doing things with a little bit of pressure that isn’t stressful is somewhat enjoyable.
Day 04: I finished off the painting from the day before. It got to a point where I had to say enough was enough but I feel somethings could still be better but at the same time I got to work on values and colour. I think that composition, movement and anatomy could be improved, but this is why I am doing this as a way to get myself to fix these things.
If you are interested I have a facebook and an instagram you can follow along with :)
So I just signed up to this! I am hoping to gain some good habits and some much needed drawing time whilst stop making excuses.
Wish me luck :3
For the final part of this assessment, we were given “client feedback” to make our adjustments to the tractor beam simulation before final submission to try and replicate what might happen in industry. Below is the feedback I received for my previous blog post;
The outer cone of the tractor beam has a nice look to it. I like how it has the diagonal shafts coming from the top, it gives some variance to its makeup.
The tractor beam is turning on too slowly though. It needs to happen much faster so that there is time to lift the mannequin into the UFO. Think no more than 15 frames.
We need to get some more detail into the simulation. I’d like to see thin rings run along the surface of the outer cone. These would move from the UFO down to the ground. As they run along the outer cone they would leave a faint trail of particles that would waft away from the outer cone and dissipate into the air. When the rings hit the ground they would dissipate and fade off.
I also want to see more detail in the current outer cone that you have. This will probably mean you’ll need to make the particles smaller and have more of them.
The colour is close, but it has too much green in it. Try to make it more of an electric blue.
Lose the grass type things that come up from the ground. Also, make sure the tractor beam is timed to the opening and closing or the UFO hatch doors. At present that is not happening.”
So I approached this by increasing the over samples of the particles to 3, to make the main part of the cone seem more like a veil than like individual particles. By doing so as well as trying to increase the time of the tractor beam contacting the earth, I lost the cross over effect of the particles. I do rather like the electric blue colour more than the aqua colour I had previously.
I had a bit of trouble trying to get the little rings to look how I wanted them to, I tried several different fields, emitter types and also goaling to an object. In the end I emitted particles from the initial rings I created and turned the visibility off, because I found if I had used any form of keys in the visibility attribute I had issues with the particles turning on and off again. So these initial rings became my emitters for the visible rings. After trying several fields, Newton, Gravity, Turbulence, Air, and Drag, I settled on using a Radial field. This still didn’t quite give me what I was after but I needed to keep moving forward in order to finish the simulation. I would rather that the particles actually moved away from the centre of the rings in a horizontal motion and slowly glittering into nothing.
I removed the particles floating up from the ground, I can see how they weren’t the desired effect. I only kept the point particles falling from the UFO, these I changed to a golden colour to add a little subtle contrast to the simulation and added a noise texture to the opacity ramp to make the particles sparkle on their way down.
After struggling a lot with the rag doll simulation, I finally got the simulation to work however I had further issues importing my file into the VFX file, so to get around this problem I referenced the original reference and made the hinge constraints and parenting constraints within the VFX file. I know this might not be the way it was meant to work, due to the assessment reflecting industry, however I wasn’t sure of the issues and needed a quick solution, so I improvised.
Below is a playblast of my final simulation, I feel the ring particles could be a little too fast but this can be changed later if need be.
The Dynamic sub menu in Maya is not just about creating particles. Within this menu set, you can create basic skeletons for characters using hinge constraints that will be used with fields to generate basic movements without having to set keys on the timeline. These dynamic simulations can, if need be, be baked out and keys added to the time line once you are happy with the over all result of the simulation.
In this tutorial, we will be looking at how to construct a hinge constraint skeleton for the mannequin provided in the UFO scene file for the tractor beam assessment. The aim is to get the mannequin to start off in a standing position, then once the tractor beam has done what it needs to in order to lift the mannequin up, we will use dynamics to lift him into the hatch of the UFO.
To start we need to have a model, in this case our wooden man, free from constraints and that the geometry is separate. Here is the model I will be using for my simulation.
Because our geometry is separated, we will need to attach it to the rest of the mannequin to avoid geometry being left behind when we go to add fields to the finished mannequin. For example;
I found that the best way to attach the ball joint geometry to the rest of the models geometry is to parent constraint selecting the “r_upperArm” and then the “r_shoulder” going to the animation sub menu > constraints > parent option box, reset the settings and making sure maintain offset is turned on.
Hit apply and repeat this for the rest of the ball joints. Your mannequin and out liner should look like this once you have completed this step.
Now that the mannequin is parent constrained, we can start setting up our hinge constraints. Selecting the head of the mannequin then the chest, go to the Dynamic Sub Menu > Soft/Rigid Bodies > Hinge Constraints Option Box. Before we do anything else make sure the settings are reset within the tool, File > Reset Settings; make sure the drop down menu stating which type of constraint it is has hinge selected.
Above is an example of the options I used when applying the hinge constraint to the left ankle. Besides from little adjustments to the translation and rotation of the constraints, I found this way to work. Continue to do this to the rest of the mannequin by following the flow of joints; for example select the chest and then the right upper arm and constrain then move and rotate the constraint into position, replicating how a joint should bend, now the right upper arm then the right lower arm and constrain then move and rotate the constraint into position, the right lower arm and the right hand then constrain then move and rotate the constraint into position.
You will end up with a skeletal structure looking like so;
To test that everything is working, select for example, the hand and apply a gravity field. Depending on which direction you wish for your mannequin to move, change the settings in the gravity field to achieve this. For me I want my mannequin to float upwards so I will change the second attribute in the direction fields to a positive number and bump the magnitude up to a number that will actually cause an effect, for me I chose 100. Make sure you have enough frames on your timeline to create a decent simulation to accurately test that it works.
This post is the next lot of self critique and a breakdown of processes I went through to achieve the current version of my tractor beam.
Between my concept post and now, I have found one more reference I would like to add to my research. Recently the cinematic trailer to Overwatch was released, there is a part within the trailer where there is a close up of a glove in a display case. The particle effects used here are similar to the idea I was going for when I concepted my core beam.
Currently the core beam is using both Particles and nParticles, I made this decision once I played around with a few options using Particles for the main cone shape. My first solution was to create a cylinder, adjust the verticies to suit the shape of the tractor beam and emit from object. I had issues here where I couldn’t get the particles to do what I wanted to, the opacity was either too much or not enough making it really hard to see through the “veil” to see the wooden man. Also finding that it was hard to find “the right amount of particles”. Below is a screenshot as an example of the result using this method.
My second attempt at a solution, was to create a volume emitter in the shape of a cone. This I had some trouble with, trying to get the emitter to release the particles how I wanted them to. I struggled with trying to get the cone shape wide enough, I am sure there was something I wasn’t doing and it would have been an easy fix but in the end I had a feeling I would have ended up with a similar result to the first method.
The final solution I tried was to use nParticles instead of the old particle system, I found this was a quicker, simpler solution to the other two methods. Using two torus’s, I emitted from the top one and made the bottom torus a goal weight. I found it easier to control the opacity and have the particles look more like a “veil”, one thing I would do is to get the core beam to spin in a slow clockwise motion as I feel the accidental cross over motion at this point in time feels too static.
The other particle systems that are within the scene, are made from Maya’s original particle system. Using a similar technique to the nParticle solution, I used torus’s to emit from. The only thing I feel needs to be tweaked is the particles being emitted from the ground. I feel the particles at the moment are too bright, they could be toned down just a little bit by changing the lightest colour in the ramp on the Opacity PP to a darker shade. I am not quite sure if I should add an additional light source underneath the wooden man…
At this point in time I am thinking to scrap one of the elements of the core beam, this I can add in at another time when I can play around with the settings and explore the best way to achieve the desired result. This part is the 5 particles that drop down from the UFO as a goal to the wooden man to appear as though these particles are lifting the wooden man back into the UFO.