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thesoloman

Learning VOPSOP

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When I first saw your example I interpreted it as self shadowing so I went with that, the lesson learned should be similar :P.

The first vopsop makes the deformations and the second creates the shadows. 

I gave the soft shadows a try but there is definitely something wrong there.

post-9869-0-66320100-1410430205_thumb.jp

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That's really good, much cooler then what I had done. :P

With the soft shadows, I really should of mentioned you (or at least my method) need a second vopsop.  It was like four thirty in the morning I was way overtired but I couldn't sleep so I figured, Hey this would be a great time to make a vopsop challenge. Whole things kinda a haze now....

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Here is what I came up with, some things didn't work out as I wanted but anyways, here is the picture:

post-9499-0-31091200-1410452725_thumb.jp

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Would be cool to close a challenge with a explanation of how the exercise its done ,just to make the thread more clean

I end up last challenge with this

 

FLoIjrp.jpg

 

But with a pc setup and captain posted another way with a near point setup.

 

Thanks!

Edited by georgeivan

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Here's my attempt. I used 3 seperate vop sops, but I could have probably reduced that.

With one of them I setup lambertian shading (clamped dot product of surface normal with light ray), with the 2nd I setup up the shadow casting (intersect, using the vector from the light source to the  point position), and with the 3rd I just did some smoothing/blurring with a point cloud.

 

post-3273-0-37422900-1410460336_thumb.pn

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I'm sorry guys, I appreciate the excersices posted on this thread, but I can't keep up. The last two are difficult to figure out how to achieve the posted images without a little background or explanation.

 

To be honest, I expected a learning curve which allow a noob like me to take some fundamentals and gradually learn how they meet together. At least, as georgeivan said before, a good explanation on how it was done will be very welcome before to move onto the next one.

 

This is my attempt at the day 8 excercise.

 

post-11908-0-51512000-1410463151_thumb.j

 

Thanks.

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I agree that the person who launched the exercice, once the next is started, explain or post his file which would allow the person who didn t find a solution to see how it was done. This way, they could progress and then try to do it again.

Edited by ioness

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Would you say the trouble with learning VopSop is in general not having a solid grounding in maths  i.e. trigonometry is a set of ratios, a matrix is used for affine transforms etc.

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https://www.edx.org/course/utaustinx/utaustinx-ut-5-01x-linear-algebra-1162#.VBIuuvmSzfI 

https://www.coursera.org/course/maththink

https://www.coursera.org/course/precalc

https://www.coursera.org/learn/calculus1

 

https://www.youtube.com/user/patrickJMT

https://www.khanacademy.org/

 

Just posting this in here in case anyone feels like they need it. I'm still fighting with the linear algebra but there's a lot of extremely useful resources out there for learning that pesky math. I only recently decided that I REALLY need that knowledge indeed so I'll be focusing on those courses heavily in the next few months. Hopefully I'll learn something =D

 

 

On topic : I'm lost. I'll keep testing things out, tho. And maybe I'll come back tomorrow begging for hints =D 

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In fact, is there a way to make a "sticky" post at the beginning with all the questions and corresponding answers ?

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Nice thread

I learned a lot from the last challenges.

first pic is the shadow task.

second pic " a new challange ?"

built your own ambient occlusion in vops

 

best regards rodstar

 

post-11299-0-93392500-1410883998_thumb.p

post-11299-0-01867300-1410884139_thumb.p

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Nice thread

I learned a lot from the last challenges.

first pic is the shadow task.

second pic " a new challange ?"

built your own ambient occlusion in vops

 

best regards rodstar

 

 

Ahhh - good suggestion. I'm going to attempt this in a few

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All right, tried the occlusion, I guess I'm not far but my result isn't great yet.
Also, I did it with an attrib wrangle instead since loops are horrible to make in Vopsops. (never managed to make a for loops in vopsop)

 

post-9757-0-24175600-1411007853_thumb.jp

Anyway, I think that is too complicated for the beginners who wish to learn how to make vopsops.

I'll try to think of another challenge that's not complicated.



 

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ah, found my problem by looking at that.
Missed the fact that intersect doesn't expect a normalized vector in the direction :)

 

post-9757-0-28979700-1411050003_thumb.jp

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