kicad-developers team mailing list archive

[Maciej Sumiński <maciej.suminski@xxxxxxx>]

Lines are computed once and cached in video memory and then rescaled
using only shaders. To do the trick, for every vertex I store there is a
vector saying in which direction a vertex should be moved and requested
line width. In fragment shader I compute expected visible line width
(taking into account current MVP matrix), and if it is too low I simply
transform the offending vertex coordinate, so it is visible again. The
same principle can be applied to fonts.

Regards,
Orson

On 04/18/2016 04:00 PM, Mário Luzeiro wrote:
> I was looking into your shader the shaders and had the same idea... but it is not possible to manage things like spacement etc.. because they will be present always as individual an individual (triangle or point) entity on the shader.
> If you are able to know what text need to be render for each frame, so it would be more flexible do it on software.
> 
> Mario
> 
> ________________________________________
> From: Maciej Sumiński [maciej.suminski@xxxxxxx]
> Sent: 18 April 2016 14:46
> To: Mário Luzeiro; kicad-developers@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Kicad-developers] Bitmap fonts
> 
> As you have already noticed - it is not. It may be moved back to
> noncached container and it will be redrawn every frame.
> 
> Another solution is to apply dynamic scaling using shaders - it is
> already done for lines, so they do not disappear when their width is
> smaller than 1 px.
> 
> Regards,
> Orson
>

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