Old CRT monitor/TV motion blur effect using pen: how can you do it?

dude341

I want to recreate the game Tennis for Two (which will be easy, considering it is the 2nd ever video game created)
So this is how the original game looks:

As you can see, the ball has a line (motion blur) that goes behind it. This looks easy to do, but the thing is, the line fades away. How could I do this?
Also what I need help with: I want to make it so the sprites and background is blurred. Scratch has no blur effect, so how could I do this? I also want to make the ball even more blurred while it is moving fast, but not blurred when it is moving slow/not moving.
Please post the code in a project, not scratchblocks.
I have no project to share, I haven't started working on it yet, but I will once I get this.
Thanks!

Last edited by dude341 (June 2, 2017 20:56:46)

-Lite-

Griffpatch has an excellently and elegantly coded way of doing trails:
https://scratch.mit.edu/projects/159688495/
For the blur, you could get a transparent “blur” image up front. This is how many websites blur content.

dude341

-Lite- wrote:
Griffpatch has an excellently and elegantly coded way of doing trails:
https://scratch.mit.edu/projects/159688495/
For the blur, you could get a transparent “blur” image up front. This is how many websites blur content.

While that project would work, the scripts in that project don't have any comments, so I don't know what any of them do

. The variable/custom block names don't really give any clues either. Could you perhaps tell me what the scripts do?
For the blur, I don't have any software that can do blurred images and don't want to download any software. Is it possible to do it with clones and the ghost effect? If so, upload the code in a project. Thanks.

asivi

Can you share your project?

dude341

asivi wrote:
Can you share your project?

dude341 (original post) wrote:
I have no project to share, I haven't started working on it yet, but I will once I get this.

Please read everything in the original post before posting! Thanks!

Last edited by dude341 (June 2, 2017 21:24:10)

asivi

Please share your project, thanks.

dude341

asivi wrote:
Please share your project, thanks.

As mentioned before, I haven't created the project. I will just use the help to create the project. Thanks.

asivi

When done, of course. Thanks.

dude341

asivi wrote:
When done, of course. Thanks.

I can't complete the project, as I need help with the physics, which is the main part of the game. (see: https://scratch.mit.edu/discuss/topic/263745/ )

Last edited by dude341 (June 2, 2017 21:33:49)

asivi

We can wait. Thanks.

dude341

asivi wrote:
We can wait. Thanks.

I found a good physics engine that matches the game. Please wait while I create a preview of the project I can share.

asivi

Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.

dude341

asivi wrote:
Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.

I have decided that the game would be look better without the motion blur. Thanks anyway. Scratch Team, please close this topic.

stickfire-helper

You could try stamping a ghosted sprite over a pen trail, like this.

dude341

stickfire-helper wrote:
You could try stamping a ghosted sprite over a pen trail, like this.

dude341 wrote:
asivi wrote:
Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.
I have decided that the game would be look better without the motion blur. Thanks anyway. Scratch Team, please close this topic.

stickfiregames

dude341 wrote:
stickfire-helper wrote:
You could try stamping a ghosted sprite over a pen trail, like this.
dude341 wrote:
asivi wrote:
Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.
I have decided that the game would be look better without the motion blur. Thanks anyway. Scratch Team, please close this topic.

Yeah, you ninja'd me.

dude341

stickfiregames wrote:
dude341 wrote:
stickfire-helper wrote:
You could try stamping a ghosted sprite over a pen trail, like this.
dude341 wrote:
asivi wrote:
Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.
I have decided that the game would be look better without the motion blur. Thanks anyway. Scratch Team, please close this topic.
Yeah, you ninja'd me.

gtoal

some combination of the cursor effect in https://scratch.mit.edu/projects/24341734/

and the flicker etc in

https://scratch.mit.edu/projects/32328580/ (temp shared for you)

dual_creator43

Try doing this:

You can also play around with the wait blocks, but the way I did it, each clone will last 0.1 seconds, and 100 clones will be produced each second. (This should not exceed the clone limit.)

dude341

gtoal wrote:
some combination of the cursor effect in https://scratch.mit.edu/projects/24341734/

and the flicker etc in

https://scratch.mit.edu/projects/32328580/ (temp shared for you)

dual_creator43 wrote:
Try doing this:
You can also play around with the wait blocks, but the way I did it, each clone will last 0.1 seconds, and 100 clones will be produced each second. (This should not exceed the clone limit.)

dude341 wrote:
asivi wrote:
Yes, i know. We will take a look and try to figure how to achieve the related effect.
Greets.
I have decided that the game would be look better without the motion blur. Thanks anyway. Scratch Team, please close this topic.

Discuss Scratch