Website design and creation by
Allan Macdonald. All rights reserved. Contact: [email protected]
On a new layer stroke the DLO
paths with a small black brush to create the window seal. Duplicate this
layer and place beneath the original. Lock transparency and fill with white.
Unlock the layer and add Gaussian blur if you wish. Using the up, down,
left, right arrows on your keyboard move the layer down and to the left.
To create the glass and the
interior, reduce the opacity of the DLO layer to about 60% and create a new layer
beneath it. Make the DLO path active and stroke with a hard edged brush.
Apply a guassian blur. Convert the path to a selection and delete the
portion of the brushstroke sitting outside your original linework.
Continue to block in volumes. Here
the sill, grill, headlamp, taillamp and rear panel have been added with some
tonal graduation to give more depth. Again paths were used to trace over the
original linework layer and each element rendered on it’s own individual
layer.
Add more depth to the bodyside
by duplicating the graduated bodyside layer. Using the linework layer as
reference, create a path defining an imaginary horizon line and add points
to close the path around the lower part of the body. Convert the path to a
selection, invert the selection and delete everything outside. Make this
layer slightly darker, lock the transparency and using different sized
brushes stroke darker and lighter tones across the layer to create a
stylised horizon on the bodyside.
Import the wheels. Use either a
photographic image or in this case an existing Photoshop rendering. Size and
position the wheels so the light is falling in the correct direction. Create
a layer between the wheels and the wheelarch/shadow layer. Create a circular
selection and using the airbrush tool add a lighter tone to create the top
of the tyre. Deselect and add Gaussian blur.
First create some linework.
I usually sketch on A3 or A4 layout paper with a black Biro. Don’t be afraid
to use as many underlay as you need to get the sketch right, even
professionals don’t get it right first. A useful technique
to help correct any perspective problems is to flip the drawing over and
work on the reverse side. This will highlight any problems with
your perspective. When you are satisfied with the design theme scan the
drawing into your computer.
Paths in Photoshop appear as black
lines, therefore changing the colour of the scanned linework with hue and
saturation will make the paths more visible. Also choose a colour which will
be visible over the colour you intend to render the car. Finally convert the
linework layer to multiply mode. All subsequent layers will be placed
underneath this layer allowing you to see both the linework and the
rendering as it progresses.
Select the very first glass layer you created
and in the select menu, load selection. Hit ok in the pop up menu and create
a new layer. With a large soft brush with low opacity add black across the
top of the glass and white down the front edge of the screen. Create a new
path to define the horizon on the glass, this should continue on to the
sheet metal of the C-pillar. Convert the path to a selection and on a new
layer add black with a large soft edge brush, have the opacity set low and
build up the intensity until you achieve the desired effect. Try achieve a
graduated tone, darker at the top lighter at the bottom to create more
contrast with the white highlight created in the next step.
With the previous selection still active invert the selection and create a
new layer. Spray white. Any over spray can be removed by activating the DLO
path, inverting the selection and pressing ctrl+x.
For a really polished finish you could reflect the surrounding floor,
gravel, grass paving stones etc. Unlock the transparency and apply Gaussian
blur to soften.
Create a new layer and make the Y-zero path visible and convert to a
selection with a soft edge brush apply dark tones to create the shoulder of
the car.
To create more contrast create a layer beneath the previous two but above
the original bodyside layer and apply white with a soft brush. Play with the
opacity levels as you apply the white. Remember this is on a separate layer so you can adjust
the layer opacity at a later stage if you wish.
To achieve a very quick impression of volume and proportion create 3 more
layers. On the bottom layer (one above background) create a path which
follows Y-zero (industry term for the cars centreline along it longitudinal
axis) Convert the path to a selection and fill with a gradient, getting
darker towards ground level. On the second layer create a path which
outlines the wheelarch openings, tyres and shadow cast by the car, fill with
black. Then on the third layer create paths which outline the DLO, (daylight
opening, industry term for the glass graphics) one for the boot glass and
one for side glass and screen (this car has no visible A-pillar). Fill with
a dark hue.
WAYNE WESTERMAN
Adobe
Photoshop Rendering
Wayne Westerman is a professional designer working at the GM advanced design
studio in Sweden. This tutorial gives a step by step guide to his digital
rendering technique.
page last updated;
2014-06-15
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