From: Rob Body (rdb++at++hrwallingford.co.uk)
Date: 09/18/2001 07:38:35
Hi Performer friends,
I have a maritime Performer application where I have an image of a ship
displayed along with the sea and terrain. The ship image represents the
ship that I am 'steering'. I am modelling waves and can get the scene to
pitch, roll and heave correctly but the problem is that my ship image does
too. How do I seperate my ship image from the rest of the scene so that it
doesn't move as well ?
Here are some snippets of code that I have used
Within InitSceneGraph(pfScene *scene);
bowimage = pfdLoadFile("bowimage.flt");
bowdcs = pfNewDCS;
pfAddChild(bowdcs,bowimage);
pfAddChild(scene,bowdcs);
Within updateView(pfChannel *chan);
get viewx, viewy, viewhdg, viewheight, roll, pitch and heave values
pfSetVec3(hpr,viewhdg,pitch,roll);
pfSetVec3(xyz,viewx,viewy,viewheight-heave);
pfChanView(chan,xyz,hpr);
pfCopyVec3(c.xyz, xyz);
pfCopyVec3(c.hpr, hpr);
pfMakeCoordMat(mat, &c);
pfChanViewMat(chan, mat);
pfCopyMat(ViewState->viewMat, mat);
pfDCSTrans(bowdcs,viewx,viewy,0.0f);
pfDCSRot(bowdcs,hdg,0.0f,0.0f);
Can anyone see what I am doing wrong ?
If pitch, roll and heave are all 0 then it works fine but as soon as they
are not 0 they all move.
Thanks for your time.
Rob
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rob Body
Simulator Manager
HR Mardyn
HR Wallingford
Howbery Park
Wallingford
Oxon
OX10 8BA
Tel 01491 822327
Fax 01491 832233
e-mail r.body++at++hrwallingford.co.uk
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This archive was generated by hypermail 2b29 : Tue Sep 18 2001 - 07:42:48 PDT