# Perspective lines matchbox

**URL:** <https://forum.logik.tv/t/perspective-lines-matchbox/6535>\
**Category:** Flame Questions\
**Tags:** batch\
**Created:** [August 16, 2022, 3:28pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535 "2022-08-16T15:28:21Z")\
**Posts on this page:** 17\
**Page:** 1

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**Author:** ![johnt](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/johnt/32/14040_2.png) [@johnt](https://forum.logik.tv/u/johnt)\
**Post date:** [August 16, 2022, 3:28pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/1 "2022-08-16T15:28:21Z")

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Hi all

Does anyone remember the name of that matchbox which has the perspective lines you can move around? _I I can’t recall the name of it_

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**Author:** ![Ryan.H](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@Ryan.H](https://forum.logik.tv/u/Ryan.H)\
**Post date:** [August 17, 2022, 2:20am UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/2 "2022-08-17T02:20:29Z")

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I don’t remember in the matchbox, but I know that there is a perspective grid in the action node…

Is this what it is? 🫠

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**Author:** ![BrittCiampa](https://avatars.discourse-cdn.com/v4/letter/b/ec9cab/32.png) [@BrittCiampa](https://forum.logik.tv/u/BrittCiampa)\
**Post date:** [August 17, 2022, 2:28am UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/3 "2022-08-17T02:28:46Z")

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Hey John, I think maybe you’re thinking of md\_perspectivelines. Unfortunately I think as you know, Mark Donney sadly passed away and I’m of the belief that these shaders are unavailable to purchase now. But I’m not sure. [https://flamemark.wixsite.com/postmanvfx/perspectivelines](https://flamemark.wixsite.com/postmanvfx/perspectivelines)

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**Author:** ![johnt](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/johnt/32/14040_2.png) [@johnt](https://forum.logik.tv/u/johnt)\
**Post date:** [August 17, 2022, 5:35am UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/4 "2022-08-17T05:35:37Z")

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Thanks for the reminder. I thought it was Mark’s.

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**Author:** ![GPM](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/gpm/32/4224_2.png) [@GPM](https://forum.logik.tv/u/GPM)\
**Post date:** [August 17, 2022, 1:45pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/5 "2022-08-17T13:45:14Z")

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If you don’t have Mark’s you could also try y grid, and use that in 3D space in Action.

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**Author:** ![johnt](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/johnt/32/14040_2.png) [@johnt](https://forum.logik.tv/u/johnt)\
**Post date:** [August 17, 2022, 2:31pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/6 "2022-08-17T14:31:29Z")

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Many thanks.

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**Author:** ![kily](https://avatars.discourse-cdn.com/v4/letter/k/a88e4f/32.png) [@kily](https://forum.logik.tv/u/kily)\
**Post date:** [December 2, 2022, 8:47pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/7 "2022-12-02T20:47:22Z")

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There is an action setup that someone uploaded doing that. I don’t remember… I have it saved in my custom node tab, I don’t remember where it came from. It’s made by expressions. Very clever. I’ll upload as soon as possible.

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**Author:** ![andy\_dill](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/andy_dill/32/15475_2.png) [@andy\_dill](https://forum.logik.tv/u/andy_dill)\
**Post date:** [December 2, 2022, 11:32pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/8 "2022-12-02T23:32:19Z")

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you can also make a line in the gmask and use replica to spin it. That’s my goto.

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**Author:** ![TimC](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/timc/32/11881_2.png) [@TimC](https://forum.logik.tv/u/TimC)\
**Post date:** [December 5, 2022, 1:21am UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/10 "2022-12-05T01:21:51Z")

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> [@johnt](#):
>
> Hi all
> 
> Does anyone remember the name of that matchbox which has the perspective lines you can move around? _I I can’t recall the name of it_

i have not seen the matchbox shader but i’ve always used the perspective grid set to ‘2D’ and locking the camera. what else do you need?

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**Author:** ![johnt](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/johnt/32/14040_2.png) [@johnt](https://forum.logik.tv/u/johnt)\
**Post date:** [December 5, 2022, 8:25am UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/11 "2022-12-05T08:25:29Z")

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The matchbox is handy to look at things in context. Specifically I used it as a guide for fixing a matte painting comp when I originally posted this. Other solutions are great but for speed, I used the matchbox.

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**Author:** ![TimC](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/timc/32/11881_2.png) [@TimC](https://forum.logik.tv/u/TimC)\
**Post date:** [December 5, 2022, 12:41pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/12 "2022-12-05T12:41:59Z")

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if you feed your shot into the bg input of an action node you can see in context just fine. maybe i’m misunderstanding the issue?

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<div class="post-metadata">

**Author:** ![TimC](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/timc/32/11881_2.png) [@TimC](https://forum.logik.tv/u/TimC)\
**Post date:** [December 5, 2022, 12:57pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/13 "2022-12-05T12:57:25Z")

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@johnt

[https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/d/dee76663cefc74fe7fee8bd780348d497edeb21d.mp4](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/d/dee76663cefc74fe7fee8bd780348d497edeb21d.mp4)

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**Author:** ![grantconnor](https://avatars.discourse-cdn.com/v4/letter/g/bc79bd/32.png) [@grantconnor](https://forum.logik.tv/u/grantconnor)\
**Post date:** [December 5, 2022, 2:00pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/14 "2022-12-05T14:00:29Z")

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I _think_ what John is talking about is being able to work on a plate downstream, while feeding it into the matchbox upstream, and see the perspective lines using context?.. Just making the action the context doesn’t display the grid…Unless I’m also misunderstanding it as well!

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<div class="post-metadata">

**Author:** ![TimC](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/timc/32/11881_2.png) [@TimC](https://forum.logik.tv/u/TimC)\
**Post date:** [December 5, 2022, 2:17pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/15 "2022-12-05T14:17:06Z")

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ah i see. that is correct - it is not visible in context and no way to render as an output to overlay downstream.

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<div class="post-metadata">

**Author:** ![kily](https://avatars.discourse-cdn.com/v4/letter/k/a88e4f/32.png) [@kily](https://forum.logik.tv/u/kily)\
**Post date:** [December 5, 2022, 2:36pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/16 "2022-12-05T14:36:45Z")

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Perspective checker:

[perspective\_checker.zip](https://forum.logik.tv/uploads/short-url/sVS6h95Y8zm669dZPel3cIeD4hs.zip) (70,9 KB)

Saved as an archive and an action, with 2023.3 (I recently updated flame)

… and , btw, sorry by the thread bump. It was accidental. Forum showed me the thread like a recent thread. Anyway, I hope be useful.

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<div class="post-metadata">

**Author:** ![BrittCiampa](https://avatars.discourse-cdn.com/v4/letter/b/ec9cab/32.png) [@BrittCiampa](https://forum.logik.tv/u/BrittCiampa)\
**Post date:** [December 5, 2022, 5:01pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/17 "2022-12-05T17:01:19Z")

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You could parent those perspective grids to just generic grid surfaces that are white over black and screen those over as your check lines?

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**Author:** ![john-geehreng](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/john-geehreng/32/7195_2.png) [@john-geehreng](https://forum.logik.tv/u/john-geehreng)\
**Post date:** [December 5, 2022, 5:22pm UTC](https://forum.logik.tv/t/perspective-lines-matchbox/6535/18 "2022-12-05T17:22:02Z")

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Nice to see someone using this! I put it on FG a while ago, but all the clever bits were from Vico’s PCR setup.
