Thomas de Groot <tho### [at] degrootorg> wrote:
> All right! This is going to be the *last* test image of the pre-macro
> Dakota Red Granite, closing also this Intermezzo.
>
> Shown here, is the current implementation of the quartz veins through
> the granite, using the marble pattern. Please note that this feature
> will remain /experimental/ in the upcoming beta macro which I shall
> provide tomorrow.

This is looking very nice!  :)

Just going to jot down some observations and thoughts, some which we may
address, and some we might not.

I think the pattern we have is better that the previous stock pattern.  The
grain size is still too uniform, but maybe if several adjacent grains were
textured identically, using the hexagon/bricks trick, then we could get a less
homogeneous size distribution.

Next I guess would be crafting the textures of the individual minerals composing
the grains.

Aside:
I took the boy outside last weekend - the oxygen and sunlight surely burned his
lungs and skin - and we explored the retaining wall of the local dam
https://www.nae.usace.army.mil/Missions/Civil-Works/Flood-Risk-Management/New-Hampshire/Hop-Ev/
Lots of granite, big chunks of quartz, and other things yet to be identified "Is
that andesite?" (smart kid - or maybe it's Minecraft...)
I noticed that the quartz, while appearing translucent white in small samples,
took on an agate gray/purple cast as the veins or chunks got larger and deeper
and Beer's law started to really kick in.  There were also striations
perpendicular to the vein line, and some of the quartz was bordered by a
different mineral that was more chalky / portland cement solid white, whatever
that might be.

There were also "rust spots" in some of the rocks, as well as plates of of mica.
 And mixed in with the granites were a few very smooth fine-grained/grainless
stones that had a dark grey transitioning to red color, such that they almost
looked like they were rusting.

I can return and take samples, photos, closeups if we think such would assist.

I would imagine that the quartz veins will be the most challenging to implement,
as there will be the issue of presence, thickness, number of veins, orientation,
amount of turbulence, etc.  Maybe that's best handled by an optional array that
the macro checks to see if present.

Post a reply to this message