Spherical perspective in TVP

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slowtiger
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Spherical perspective in TVP

Post by slowtiger » 01 Mar 2016, 17:37

Anyone remember this one?
frenchcurve.jpg
I was searching for mine today, without success, because I wanted to construct a spherical perspective (a nice explanation is given at http://www.treeshark.com/treeblog/?p=301). Then I remembered the spline tools in TVP and was able to construct a grid much faster than ever. Here's how:

1. Sketch the grid you want. It doesn't have to be mathematically accurate, instead it can be a "toon perspective". (That's why we use 2D and not CGI.)
2. Start with the horizontal and vertical line. If you do a symmetrical grid, you only need to draw one quarter of the grid, rest is done with duplicating and flipping images.
bspline.jpg
3. Select the B-spline tool. I found I get best results if I place the middle point inside the yellow zone. I place several lines in more or less even distance. Then I fill with more lines halfways, like inbetweens. Repeat with as many grid lines you need.

Immensely helpful, this spline tool.
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Fabrice
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Re: Spherical perspective in TVP

Post by Fabrice » 02 Mar 2016, 14:36

well, we have this kind of guide in our TODO list, but I don't know when we will have time to work on it.
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NathanOtano
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Re: Spherical perspective in TVP

Post by NathanOtano » 02 Mar 2016, 19:43

If I remember well, there is this kind of tool in Lemecs's RockNroll plugin, but I don't know if it still works :

http://forum.tvpaint.com/viewtopic.php?f=26&t=2481" onclick="window.open(this.href);return false;

You can also use the latest version of lazynezumi that includes curved perspective, it's really clever.
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As I'm highly interested in animation workflows, I'm open to scripting new TVP functions for individuals and studios. Please don't hesitate to contact me!

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Elodie
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Re: Spherical perspective in TVP

Post by Elodie » 03 Mar 2016, 07:39

Why is this topic in content sharing ? Shouldn't it be placed in feature requests ?
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slowtiger
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Re: Spherical perspective in TVP

Post by slowtiger » 03 Mar 2016, 08:16

Because I was just sharing a how-to, not requesting anything.

Maybe we should add a section to the forum for this?
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Elodie
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Re: Spherical perspective in TVP

Post by Elodie » 03 Mar 2016, 08:43

Oh ok, I wasn't sure, my apologise :oops:
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slowtiger
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Re: Spherical perspective in TVP

Post by slowtiger » 03 Mar 2016, 09:34

But having a spherical perspective tool inside TVP would be great. I just wonder how it should work within the concept "no artwork outside the project boundaries", because I think any perspective tool is more useful when I can place vanishing points quite far outside the artwork. When I did that stuff on paper, I often had two vanishing points 1,5 m away from each other.
gridtool1.jpg
This is not a grid I'd prefer, but should illustrate my point of being able to place that tool outside the profect area.
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Fabrice
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Re: Spherical perspective in TVP

Post by Fabrice » 03 Mar 2016, 11:51

in the guide system, the vanishing points can be outside the boundaries of the project.
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Kenedy
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Re: Spherical perspective in TVP

Post by Kenedy » 27 Mar 2016, 06:59

Its really good post you have shared.Thanks a lot
Graduated from Soran University with First Class Degree with Honours in Computer Science.

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