The 3D section of FunMedia


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The grid model

The 3D-section of FunMedia enables to produce simple 3D-objects. The source of light is shown as yellow sphere and the 3D-object as grid model if you work on it. The selected surface is shown hatched.
With a click on the 3D-object a point or surface will be selected. This can be shifted with a click onto the focal point. With the simultaneous pressing of one SHIFT key the object / point / surface is turned.

The toolbox

'scuare'
Produces a new square, which appears in the 3D-window. You have to click into the 3D-window and draw with pressed mouse the square up.
'Triangle'
Produces a triangle.
'cuboid'
Enables the creation of a cuboid in real time directly in the 3D-window. You have to draw the surface area up with pressed mouse button and if you release the mouse button the height of the cuboid can be processed.
'cone'
A cone is produced. You create a cone through click in the 3D-window, whose height is changed through shifting the mouse. A repeated mouse-click cause a variabel cone radius.
'sphere'
A sphere is produced. You change the radius through shifting the mouse.
'torus'
A torus is produced. First the radius is set and afterwards the thickness of the torus.

'process point'
To shift and turn affects the selected point.
'process surface'
To shift and turn affects the selected surface.
'process object'
To shift and turn affects the whole object.
'extrude'
Produces from the current surface (if available) a 3D-construction.
The darkly filled surface is the actual surface.
'material'
A texture selection menu appears, if textures were loaded. One can assign a texture or a colour to the actual surface (dark). The actual screen sample is always the first texture. The small yellow spere shows the source of light. One can click and shift/turn these directly. If the source of light is clicked, the body is shaded immediately, in order to see the result immediately. In the object menu various adjustments are made to the representation. The colours of the actual color area are used in 8 bits depth of shade with the Gouraud Shading. The color area is indicated in the color menu.

The Z-buffer

The Z-buffer process the covering of surfaces. Funmedia uses the Maleralgorithm if the Z-buffer is switched off, then the surfaces are putted from rear to front. The Z-buffer enables the representation of bodies that cut/overlap themselves.

The 3D-format
3D-Objekte can be imported of the type *.3DS.