Spherical perspective in TVP

[slowtiger]

Anyone remember this one?

frenchcurve.jpg (12.19 KiB) Viewed 2746 times

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 (28.75 KiB) Viewed 2746 times

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.

[Fabrice]

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.

[NathanOtano]

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.

[Elodie]

Why is this topic in content sharing ? Shouldn't it be placed in feature requests ?

[slowtiger]

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

Maybe we should add a section to the forum for this?

[Elodie]

Oh ok, I wasn't sure, my apologise

[slowtiger]

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 (90.79 KiB) Viewed 2694 times

This is not a grid I'd prefer, but should illustrate my point of being able to place that tool outside the profect area.

[Fabrice]

in the guide system, the vanishing points can be outside the boundaries of the project.

[Kenedy]

Its really good post you have shared.Thanks a lot