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- !Model © 1992 Pete Goodwin.
-
- A scene designer for PVray, a ray tracer.
-
- Please send comments, fault reports to:
-
- Pete Goodwin
- 15 Essex St.,
- Reading,
- Berks.,
- RG2 0EH
-
- !Model will be shareware in it's final release. This
- version is public domain, but to get the final version
- (when it's ready) send £10 to the above address to become
- a registered user.
-
- !Model uses VOGLE (very ordinary graphics learning
- environment) to display 3 dimensional objects in various
- different types of view. VOGLE itself is public domain (I
- can supply a copy if anyone sends me a disk with an SAE).
-
- !Model can cope with: Spheres, Scalable spheres (i.e. you
- can scale it in all three dimensions), Boxes, Cones,
- Cylinders and Planes. I'll add more objects as time goes
- on.
-
- !Model doesn't attempt to deal with PVray richness of
- objects; for instance 'intersection' or 'difference' isn't
- catered for. You can't take a sphere and subtract a
- cylinder from like you can in PVray (effectively drilling
- a hole through the sphere).
-
- Creating and editing objects
-
- !Model relies on each object having a centre; all
- operations are based around this. Selecting an object you
- must be within 0.5 units of the centre.
-
- In Create mode, clicking in the window drops a new object
- at that point. You may use Adjust to set the scale or
- rotation of the object.
-
- In Select mode, clicking in the window selects an object.
-
- Dragging will move an object.
-
- Adjust drag will either scale or rotate the object
- depending on the Adjust menu setting¹.
-
- With a grid value objects will be locked with values on
- that grid setting, i.e. a grid of 0.2 will have values of
- 0.2, 4.6 etc.
-
- The main window menu:
-
- Create (sets create mode of the object selected)
-
- Plane
-
- Currently planes can be created only from the
- Front and Top view - these are planes in xz and xy
- axes.
-
- Simple Sphere
-
- This is a sphere that can't be scaled in any
- dimension; only all three together.
-
- Scalable Sphere
-
- This is a quadric sphere that can be scaled in any
- dimension.
-
- Box
-
- This is a cube 2 units in all dimensions.
-
- Cylinder
-
- This is a vertical (y) cylinder 2 units high, 1
- unit radius.
-
- Cone
-
- This is a cone with a 1 unit radius, whose point
- is at the centre of the object.
-
- (Triangle)
- (Rectangle)
- (Composite)
-
- Select (sets select mode)
-
- Texture
-
- This displays the texture dialog box.
-
- Material
-
- This displays the material dialog box.
-
- Copy
-
- Copy the currently selected object.
-
- Delete
-
- Delete the currently selected object.
-
- Light Source
-
- Make the current object a light source.
-
- Display
-
- The current object is displayed if ticked; not
- displayed (hidden) otherwise.
-
- Adjust
-
- Scale
-
- Set adjust drags to change the scale.
-
- Angle
-
- Set adjust drags to change the rotation.
-
- Frame
-
- Animation support (TBI).
-
- View
-
- Perspective
-
- A full perspective view of the scene as seen from
- the observer looking at the lookat (observed)
- point.
-
- Front
-
- Front orthogonal view.
-
- Top
-
- Top orthogonal view.
-
- Bottom
-
- Bottom orthogonal view.
-
- Left
-
- Left hand view.
-
- Right
-
- Right hand view.
-
- Options
-
- Scale
-
- Set the scale of the image on the orthogonal
- views; the perspective view is unaffected.
-
- Grid
-
- Lock objects to a grid.
-
- Lock
-
- The third dimension on scaling will be locked to
- ensure scaling is symettrical.
-
- The bar icon menu
-
- Info
-
- Details about this version of Model
-
- Ray Trace
-
- Set up details to launch a ray tracing task for the
- current view.
-
- Clear
-
- Clear out current image.
-
- Save Model
-
- Save Model data file.
-
- Save PVray
-
- Save PVray source file.
-
- Quit
-
- Colour
-
- Colour is like !Paint's colour selector, except there's
- extra value: R, G, B and Alpha. Alpha is the amount of
- transparency (see PVray documentation).
-
- To the right of the sliders is a box containing the
- current colour setting. PVray uses 24 bit colour, and
- specifies the colour using floating point values 0.0 to
- 1.0.
-
- Below the sliders are two paint pot pourers. They set the
- start and end of the 8 boxes at the bottom. Click on smear
- to get a range between to colours.
-
- The five colour boxes set those colours, i.e. black, red,
- green, blue and white.
-
- Transparent sets transparent colour, i.e. see through.
-
- Colour Maps
-
- These are part of certain types of texture (see PVray
- documentation).
-
- Select the number of ranges (defaults to 4).
-
- Each line below is a colour map entry. The number is the
- start of the entry. Click on the boxes to the right to set
- the start and finish colours of the line.
-
- Smear will take the left lowest colour as a starting point
- and select colours ranging to the highest rightmost
- colour.
-
- None will switch off the colourmap.
-
- Known faults
-
- ¹ Rotation in the left and right view doesn't work
- properly.
-