How can I make my textures face "out" of my objects- they all seem to just want to
point along the Z- direction so any faces I create that are at 90 degrees to this just
don't show properly at all.
Basically, I've got my object created like this:
int[] stripCounts= new int[2];
stripCounts[0]=4;
stripCounts[1]=4;
int[] contourCount=new int[2];
contourCount[0]=1;
contourCount[1]=1;
Point3f[] pts=new Point3f[8];
// front
pts[0]=A;
pts[1]=B;
pts[2]=C;
pts[3]=D;
// back
pts[4]=D;
pts[5]=C;
pts[6]=B;
pts[7]=A;
GeometryInfo gi = new GeometryInfo(GeometryInfo.POLYGON_ARRAY);
gi.setCoordinates(pts);
gi.setStripCounts(stripCounts);
gi.setContourCounts(contourCount);
I know I need to set my texture arrays next, but I can't work out enough from the docs
and various books I have around to make them work. I can create an array of floating
points that loads fine as a texture co-ordinate set, like this:
float[] textco = { 0.0f, 0.0f, 1.00f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 0.00f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f};
gi.setTextureCoordinateParams(1, 2);
gi.setTextureCoordinates( 0, textco );
The problem is that I don't actually understand where these points are mapping to- I
am still a bit new to the language of 3d programming ( I'm fine with the concepts, but
I don't always know the names ) so I'm finding it very tricky to actually match one to
the other.
For a set of points like:
A = (0.0, 1.0, 0.0)
B = (0.0, 2.0, 0.0)
C = (0.0, 2.0, 4.0)
D = (0.0, 1.0, 4.0)
I just get a cross section of the texture right along the face.
I know this is probably another a really obvious question but how does the co-ordinate
mapping work?
thanks,
-ben
---------------------------------------
Ben Moxon
newview communications limited
[t] 01483 845394
[e] [EMAIL PROTECTED]
[w] www.newview.co.uk
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