For my RMS Titanic project I use the brick pattern for the deck planking.

However there are gaps in the mortar lines.

Here is a test scene that shows the problem:

#version 3.7;

global_settings
{
    assumed_gamma 1
}

#declare DeckTexture = texture
{
    pigment
    {
        brick
        srgb <0, 0, 0>, srgb <1, 1, 1>
        brick_size <20, 1, 10>
        mortar 0.05
    }
    rotate <90, 0, 0>
}

light_source
{
    <-150, 250, 0>
    color rgb <1, 1, 1>
}

camera
{
   location <-260, 38, 20>
   right x * image_width / image_height
   look_at <-240, 26, 10>
}

box
{
    <-250, 0, -50>, <0, 0, 50>
    texture
    {
        DeckTexture
    }
}

My povray version is
Persistence of Vision(tm) Ray Tracer Version 3.8.0-alpha.9606898.unofficial (g++
7.3.0 @ x86_64-pc-linux-gnu)

I have tried with maximum anit-aliasing (+a0.1 +r9), but I'm still having the
gaps. Is there any way I can fix this?

Thanks
Ton.

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