Trace and Blob Tracking Effect with TouchDesigner
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
- I've been seeing this effect a lot lately and thought I'd figure out how its done and share it.
This tutorial covers lots of other fun little techniques using a Cache TOP and Difference TOP to make a cheap motion detection TOP.
If there's an effect out there that you'd like to learn. Send it my way.
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As a freelancer, I'm always excited to collaborate on new projects. If you're interested in working together, let's chat!
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Man you are just amazing at this!! Most of the touchdesigner tutorials just show us what nodes to connect and what values to tweak which is alright... But explaining WHY you are using what you are using and how they work and what role they play in the network is super essential and you are one of the very few people doing this!! Thanks a ton! Subscribed!
I love hearing this. I hope to do exactly that. I want to move fast to not let people get too bored with explaining but I don’t want to leave people wondering why I did what I did to get the result.
Dean you are an ANGEL in TouchDesigner space, just found out about your channel and I am amazed already, thank you so much!
That’s too kind! I’m just getting started. Thanks for following along.
good stuff. thanks Dean. following! I'll have a think about suggesting another technique for your next tutorial
Thanks for the feedback!
Thank you for the helpful tutorial, Really helpful stuff!
Glad it was helpful!
great tutorial. thank you!
You're welcome!
Amazing tutorial, I hope you continue to make more!
Thanks! Just getting started. What sort of things would you like to see more of?
@@DeanCheesman I've been trying to figure out vector fields for awhile. I've seen some videos where people use a combination of a Feedback TOP + GLSL but they kind of just gloss over the code/network instead of showing how to build from scratch.
Maybe I missed it in the video. Is the Trace and Blob Tracking just this visual effect or does it serve some utility for other effects you are meant to build off it?
Yeah. Just the end effect itself. Was seeing a lot of people using it but not a lot showing how.
Thank you for your tutorial!!! I have trouble connecting null and geo, can u please explain
Of course! By default a geo doesn't have a SOP input on it, but if you take a sop and drag a wire from its output and hit tab to see the operators, then choose a geo it will add the input for you and connect it.
@@DeanCheesman thank u!
Where would I have to go (virtually or otherwise), or what courses would I have to take to learn how to do all this?
You’re already there! It’s all pretty much available to learn here on TH-cam!
Also, is there any way to adjust the thickness of the squares or lines on the final comp?
Yes! You can adjust the line near/far with in the Line material operator.
I followed the tutorial and I got very close to the desired result... however I am not getting AS MANY blobs and text... im opnly getting a few.... in the sense very few in number.... I think this is because I only have a maximum of 2 rows in my blobtrack1_blobs dat... idk how to incease it.. any help?
The free version limits you. I’ve got a workaround to fake it. Tutorial is planned I just need to record it.
Hwy when i put u and v nothing is changing in the blob part! What shall i do?
I’m not sure I understand where it’s not working. Maybe give me a time stamp on where you’re getting an issue?
Hi there! great tutorial. I'm having a little problem when i connect the last null(4) with the text1 node. The numbers appears at the bottom left of the render. I suppose its not taking the information of the blob tracker. (im using the non-commercial version of TD). Do you have any tip? thanks! =)
Hey thanks for following along. Two potential reasons I can think of. Did you convert your blob's u and v to x and y positions by multiplying by your height? Also did you make sure that your column names in null4 are exactly "x", "y", and "text"?
having the same problem, even after the suggested solutions
I think I found a solution, change your position value to fraction aspect from pixels in the text sop
@@DeanCheesman I think I found the error. I did the tutorial again from blobtracker and I think I had forgotten to multiply by the height of my video (1280). Thanks!
i think i found the solution, 14:30 in this video, make sure you have dragged your null3 to chopto