Procedurally modeling bridge, Corrine
Corrine was giving us a lesson on procedurally modeling a bridge, everything starts off with a "Line" and a grouping of points just like how Ari uses it during the rocket modeling exercise, breaking down everything to the simplest.
It's pretty tedious to document every step, basically it's showing the power of going procedural, being able to make parameter changes to the bridge model in the future if you like to.
Attributes & Variables, Eric
We were able to sit in on a dry run of the attributes & variables lesson which would be conducted later tonight. Got to learn a lot more and was able to ask questions, was watching Peter Quint's videos on Attributes previously and was either unable to understand some parts.
I'll share about the hands-on exercise which I really liked, generating particles for a capsule entering the atmosphere.
Reference from Eric
The start scene has a simple capsule model, where we would "Object_Merge" it into another geometry object and use it to as the emitter.
We have a custom attribute named "emission", using it to store the values which were later painted after appending the "Paint SOP". These are the places we want particles to emit out from!
Because the "Paint SOP" comes with Cd attribute (Diffuse Colour), we'll need to delete these as we want to assign our own color values, possibility a ramp later.
To delete an attribute, append "Attribute SOP", Type "Cd" in the parameter as shown in the image below (caution it's case-sensitive).
Believe we're emitting particles from primitives of the capsule so we have to promote our attribute from "Point" to "Primitive" class.
Adding normals to the points.
All we've done up till now will be fed into "POP_net" where particles will be generated.
Dive in create "Source POP",
Emission Type: Surfaces (attribute)
- emission attribute was promoted to "Primitive" which is surface.
Geo Source: Use First Context Geo
- emission attribute was fed into first input of "POP_net".
Distribution Attribute: emission
- custom attribute which was created in SOP level.
Curl Noise, adds more randomness to the particles' movements.
Making particles bounce on collision.
Added ramp. With the expression $LIFE which is a local variable, the particles birth out will be red initially and changes towards yellow then grey based on the value of $LIFE.
Add "Force POP", have force in y-axis.
That's pretty much what was shown, although I had some experience using POP and attributes played a small part during my final year project. I was able to learn new stuff and understand custom attributes, global/local variables much better than before, so thanks again to Eric!
Tomorrow's agenda
Tomorrow John might give us a lesson on VOPSOP, been wanting to learn more about it! Only tried layering multiple types of noises together and recall Mr Ron demonstrating sampling velocity from DOP.
Additional info and video
Spoke to Corrine for a bit today, talked about one of her school group project (Franz) where the effects were done in Houdini! I only figured she was involved in it while watching her demo-reel on her blog, was really impressed back then and wished I could be involved in a project like this one.
She was explaining how the modeling & texturing were done in Maya and the pair of conductor's hands was shot live and rotoscoped out and the elements were composited in Nuke.
Video: Franz
Video: Corrine's Demo-reel
More can also be found on her webby, enjoy.
http://www.corinnedeorsay.com/project.html
Thanks Corrine!
Skateboarding
Talking to Janina about skateboards, she was giving me recommendations and advises when purchasing one. Since it's for cruising purpose, I should go for slightly longer and wider board and bigger wheels to avoid tripping over bumpy ground and better stability.
Letting me check out the board she brought to work today and it was huge compared to the one Bryan bought, his was more toward small wheels which Janina said it more for performing tricks and going up U-ramps if I'm not mistaken.
Intention is to get an Element board online and buy a pair of trucks down at Quiksilver just along 3rd Street Promenade.
Thanks Janina!
Element Website
http://elementskateboards.com/us/
end.
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