| Requirements: |
Paint
Shop Pro 7 |
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| This
tutorial explains how to apply textures to a 3d object. The
object in this tutorial will be a simple cube, however the
same techniques can be applied to many different objects.
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|
| 1. |
Create a simple wireframe 3d cube using the previous
tutorial, or download this one.
Remove the back three lines if they are present, so the cube
looks similar to the example. |
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| 2.
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Create
a New Vector Layer and rename it
"Shading". Select the
Draw tool  ,
Type: Point to Point line, Width:
1, Antialias, Create
as vector and Close path
all checked. Choose the colour #808080
for both background and foreground solid colour. |
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| 3. |
Trace
the outline of the entire cube by clicking on each of the six
outer points. Press ctrl-Q to finish
drawing. If you didn't quite get the shape of the cube right,
use the Node Edit to fix it up. |
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| 4. |
Duplicate
the layer "Shading" from
the menu,
Layers->Duplicate. Select only
the Drawing that was duplicated
in the layer "Copy of Shading",
and re-colour it to #404040.
Now turn off the visibility 
of the layer "Shading"
and Node Edit the Drawing
in the "Copy of Shading"
layer, so it fits one face of the cube. You will need to delete
2 nodes and move only one. Dont touch the nodes that are already
in place.
Turn back on the visibility of the "Shading"
layer. |
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| 5. |
.Repeat
Step 4, only this time re-colouring
to #E0E0E0, and node editing to
fit into a different face.
The cube should now look like the example. |
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| 6. |
Create
3 squares, approximately bigger than the cube, or download
these. These will be the textures for each face of the cube.
Paste them each into different
newly created Raster Layers. Rename
the layers "Left Face",
"Right Face", and "Top
Face" for each respective texture. |
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| 7. |
For the
"Left Face", set the
Layer Opacity to around 50 (this
makes it easier to see the cube underneath), and turn off
the visibility of the other raster layers.
Select the Deformation tool 
and holding down shift left click on the corner handles
and drag the handle into the corner of the face the texture
is going into (this is called skewing). This must be all done
in one go, or else the deformation tool will not be skewing
a square anymore. You can use the scrollbars to move around
the image and the +/- keys on the keypad to zoom.
Remember to always hold down shift before clicking and dragging.
The skew handle will behave a little strangely, because it
can only move along the direction of each side you are skewing.
You will have to use the skew handle for each corner a few
times before you get it to the point you want. Remember that
you can always experiment first, and then undo your changes,
only the Deformation tool will need to be deselected before
you can undo anything.
Once the texture is in place, and all four corners have been
skewed into the corners of the face, you can deselect the
Deformation tool to accept the
changes.
Put the Layer Opacity back to
100.
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|
 |
| can
only skew in direction of green arrows |
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| |
| 8. |
Repeat
Step 7 for the "Right
Face" and the "Top Face".
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| 9. |
You
should now have three Raster Layers
with the textures of each face in them, and three Vector
Layers with the shading of each face.
Set the Layer Blend Mode of all
three Raster Layers to "Multiply". |
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| 10. |
You
now have a textured 3d cube with lighting. You can also clean
up any of the faces where the texture goes over the edge a little
by applying masks. |
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 |
Finished
result. |
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| Note:
|
This
is a handy technique in Paint Shop Pro, and can be useful for
many other situations where a texture needs to be applied to
a surface that is not perpendicular to the viewer.
A simple cube was used in this tutorial because it has all sides
the same length, but the same idea works for non-regular cubes
aswell. The only difference being the texture size must reflect
the shape of the objects face.
Triangular faces require a little more planning and work, but
the same general principles apply. |
written
10th december 2001 by youp
|
3D-TEXTURING
TUTORIAL 
