[David Miller]

Thanks Dan

I will give this a try on some short footage and report back from the front lines…

david

[David Miller]

Thanks Dan

I will give this a try on some short footage and report back from the front lines…

david

[David Miller]

I finally understand. That must be why it lays down keyframes instead of dynamically updating as the parmeters change. Thanks for not letting me head down that direction. I wanted to play with some type following a tracking point but have it have action like the connections in that beautiful site https://www.visualthesaurus.com. In reality I can hand animate the whole thing which I may end up doing but this is one of those things that I just didn’t want to give up on. I know I could use it in the future and I know the community would take it into some amazing directions.

Do you know if there is at least a dampening function that could be added to this?

Thanks Dan

David

[David Miller]

I finally understand. That must be why it lays down keyframes instead of dynamically updating as the parmeters change. Thanks for not letting me head down that direction. I wanted to play with some type following a tracking point but have it have action like the connections in that beautiful site https://www.visualthesaurus.com. In reality I can hand animate the whole thing which I may end up doing but this is one of those things that I just didn’t want to give up on. I know I could use it in the future and I know the community would take it into some amazing directions.

Do you know if there is at least a dampening function that could be added to this?

Thanks Dan

David

[David Miller]

I have been using the image lounge and composite wizard stuff for years and it can really work wonders. Red Giant has picked it up and you can find it at

https://www.redgiantsoftware.com/aftereffectsplugins.html

Hope this helps. There are also some methods to outlines and use track mattes if you want to do it the manual way. I could detail some methods if that is your preferred method.

David

[David Miller]

Thanks Dan

I did find that and have been trying to understand it. It is a little wild although giving it some preroll time seems to help and changing some of the parameters. But do you remember the motion math spring script. It was so perfect for doing little projects like this and it would add a dampening effect to the spring so it didn’t just bounce wildly. Do you know if I can repurpose that script? I suppose I could reload 5.5 and try to work with that or try to figure this one out but I don’t really know the quantitative differences between expressions and motion math.

anyway thanks for the follow up.

David

Here was the script

// One spring – version 1.2

// This script attaches a spring between the 2 layers shown in the popups.
// Layer 1 keeps its original motion, while layer 2 is attached by a spring to it.

// LAYER PROPERTY CHANNEL
// —— ———- ——–
// 1: Layer that moves doesn’t matter doesn’t matter
// 2: Layer attached to #1 by a spring doesn’t matter doesn’t matter

if (time() == start_time) {
rest_length = 10; // rest length of spring in pixels
damp = 0.95; // Damping (0 = infinite friction, 1 = none)

p1 = value(pop_layer(1), position);
p2 = value(pop_layer(2), position);

last_p1 = tmap(time() – step_time, value(pop_layer(1), position));
last_p2 = tmap(time() – step_time, value(pop_layer(2), position));

v1 = (p1 – last_p1);
v2 = (p2 – last_p2);
} else {
p1 = value(pop_layer(1), position);

delta = p2 – p1;
n_delta = normalize(delta);

a = 2 * n_delta * (length(delta) – rest_length) * step_time;

v2 = (v2 – a) * damp;
v1 = (v1 + a) * damp;

p1 = p1 + v1;
p2 = p2 + v2;
}
value(pop_layer(2), position) = p2;

[David Miller]

Thanks Dan

I did find that and have been trying to understand it. It is a little wild although giving it some preroll time seems to help and changing some of the parameters. But do you remember the motion math spring script. It was so perfect for doing little projects like this and it would add a dampening effect to the spring so it didn’t just bounce wildly. Do you know if I can repurpose that script? I suppose I could reload 5.5 and try to work with that or try to figure this one out but I don’t really know the quantitative differences between expressions and motion math.

anyway thanks for the follow up.

David

Here was the script

// One spring – version 1.2

// This script attaches a spring between the 2 layers shown in the popups.
// Layer 1 keeps its original motion, while layer 2 is attached by a spring to it.

// LAYER PROPERTY CHANNEL
// —— ———- ——–
// 1: Layer that moves doesn’t matter doesn’t matter
// 2: Layer attached to #1 by a spring doesn’t matter doesn’t matter

if (time() == start_time) {
rest_length = 10; // rest length of spring in pixels
damp = 0.95; // Damping (0 = infinite friction, 1 = none)

p1 = value(pop_layer(1), position);
p2 = value(pop_layer(2), position);

last_p1 = tmap(time() – step_time, value(pop_layer(1), position));
last_p2 = tmap(time() – step_time, value(pop_layer(2), position));

v1 = (p1 – last_p1);
v2 = (p2 – last_p2);
} else {
p1 = value(pop_layer(1), position);

delta = p2 – p1;
n_delta = normalize(delta);

a = 2 * n_delta * (length(delta) – rest_length) * step_time;

v2 = (v2 – a) * damp;
v1 = (v1 + a) * damp;

p1 = p1 + v1;
p2 = p2 + v2;
}
value(pop_layer(2), position) = p2;