show3d.inc 2 KB
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        This is the beginning of an information-system like a running-text
        written in java. At the end it should wirl a lot of vertices in a
        spherical room and form words from it. The basic 3D-Stuff is ready and
        shown in the applet below. Sadly it is so slow that i am not sure if
        it will ever work as i thought it should.<BR><BR>
        
        <CENTER>
        <APPLET code="test.class" codebase="classes"
                width=200 height=150 name="test">
            You must activate Java with your browser if you want to see 
            anything...
        </APPLET>
        </CENTER><BR>

        In the actual state the applet does the following:<BR><BR>

        <OL>
            <LI>
                <B>translation, rotation, scale</B><BR>
                calculation of the 3D-coordinates for every vertex.<BR>
                <I>relatively fast</I>
            <LI>
                <B>projection</B><BR>
                The 3D-coordinates will be projected on 2D-screenspace.<BR>
                <I>relatively fast, too</I>
            <LI>
                <B>lighting</B><BR>
                calculating a color-intensity by the angle of the normal
                vector of a polygon (triangle)to a defined light-vector.<BR>
                <I>even this isn't the speed problem</I>
            <LI>
                <B>backface-culling</B><BR>
                Polygons facing away from the viewer are not drawn.<BR>
                <I>fast...</I>
            <LI>
                <B>scanline-conversion and lineal texturemapping</B><BR>
                i map previously calculatet checker-texture on every polygon.
                There are a few error (rounding?) in this and it is...<BR>
                <I>slow....</I>
        </OL><BR>

        The sourcecode is available for download.<BR>
        I plan to write a documentation about the things i have done so far
        in this applet.
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