3D Creative December 2015

3DCREATIVE MAGAZINE | Presenting assets in Marmoset Viewer
Filling in the cracks: The painted-on
04 stencils can look a little flat and fake.
This is because the normal map detail from the
wood is showing through the blood decal too
much; as blood is quite thick, you would expect
it to fill in the cracks more, so to fix this we need
to adjust the imported normal map. Substance
Painter uses height maps to add to the normal
map but this wont allow us to remove details
from the normal map that we imported at the
start. In order to paint into the normal map
itself you need to add the normal map to the
material. In the TextureSet settings next to the
channel section, click the ‘+’ sign to get a lot more
channels that we can add to our material. Select
normal map. You will now notice a Base Normal
has been added to the layer and a ‘nrm’ tab has
appeared on the material. Now we can make
edits to the actual normal map and subtract the
detail away.
Normal map wood damage: At the
05 top of the layer section, select normal
from the drop-down list so that we can only paint
in the normal channel and not affect the other
channels accidentally. Create a new layer and
turn off all except the height channel. Now when
you paint on the model you will notice you can
add or subtract height data from the normal map.
I feel the damaged part of the handle is a little
flat, so I paint in some random brushstrokes to
carve away at the wood. You can add scratches or
blend out any detail you feel is too heavy around
the asset.
Completed texturing of shield: This
06 now completes the methods I use to
texture the shield. You can keep painting in details
where you feel it is needed. This image shows
the back view of the shield, which I think is quite
successful at showing a damaged, weathered and
well-used Viking shield. The gold ring and stitched
leather really add a nice hint of detail. These
assets are now ready to be exported to Marmoset
Toolbag 2.
Exporting the textures: The export
07 process in Substance Painter is very
simple. Select File > Export Textures and you will
be presented with the export window. Here you
can say where the files will be saved to; the size of
the exported texture maps and the format of the
textures. I use TGA for my format and a resolution
of 2,948.
Filling in the wood detail with blood to stop the ‘painted-on’ effect
Painting in new normal map details into the wood damage
There is also a list of all the textures that will be
exported: Base color, Height, Roughness, Metallic
and Normal. Hit export and Substance Painter will
export the textures quickly. We can now move on
to presenting our work in Marmoset Toolbag 2.
Completed model in Substance Painter, ready for export
3DCREATIVEMAG.COM