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On 02/11/2006 at 14:39, xxxxxxxx wrote:
User Information: Cinema 4D Version: 8.2 Platform: Windows ; Language(s) : C.O.F.F.E.E ; XPRESSO ;
--------- this is my first post.
i have seen this topic posted before, but the solution doesn't apply to my sitation.
i have an xpresso setup with a COFFEE node. the goal is to do an animated matrix extrude in r8.2 -- which, to some degree, i have accomplished. still, the results are only visible in the realtime editor display and do not show up in any rendered output.
i also have a txt file of the COFFEE code for the r9.6 demo of c4d:
var oldSteps;
main() { println("oldSteps= ", oldSteps);
var doc = GetActiveDocument(); var op = doc->FindObject("MyObject"); // GetActiveObject(doc); var ver = GetC4DVersion(); println("ver = ", ver);
if (!doc->FindObject("Backup")) {
println("'Backup' found? ", doc->FindObject("Backup")?"TRUE":"FALSE");
var currentObject = doc->FindObject("MyObject"); // GetActiveObject(doc);
println((currentObject == op)?"TRUE":"FALSE");
var clone; clone = currentObject->GetClone(CL_NO_HIERARCHY); clone->SetName("Backup");
GetActiveDocument()->InsertObject(clone, NULL, NULL);
doc->SetActiveObject(currentObject);
EventAdd(); }
// ***********************************************************************
if (Steps != oldSteps) {
var BaseDoc = GetActiveDocument(); var currentObject = BaseDoc->FindObject("MyObject"); // GetActiveObject(BaseDoc);
// reset object if (Steps != oldSteps) { currentObject->Remove(); currentObject = BaseDoc->FindObject("Backup");
var clone; clone = currentObject->GetClone(CL_NO_HIERARCHY); clone->SetName("MyObject");
currentObject = BaseDoc->FindObject("MyObject"); BaseDoc->SetActiveObject(currentObject); EventAdd(); }
if (Steps > 0) { var bc = currentObject->GetContainer(); // "new" method found 2006-10-02 vs. old "new(BaseContainer)" method
bc->SetData(MDATA_MATRIXEXTRUDE_STEPS, Steps); bc->SetData(MDATA_MATRIXEXTRUDE_MOVE, vector(0.0,0.0,50.0)); bc->SetData(MDATA_MATRIXEXTRUDE_SCALE, vector(0.8,0.8,0.8)); bc->SetData(MDATA_MATRIXEXTRUDE_ROTATE, vector((10.0/360.0)*(3.14),0.0,0.0)); // convert to RADIANS!
bc->SetData(MDATA_MATRIXEXTRUDE_POLYGONCOORDS, TRUE); bc->SetData(MDATA_MATRIXEXTRUDE_VARIANCE, 0);
var myres = SendModelingCommand(ID_MODELING_MATRIX_EXTRUDE_TOOL, NULL, currentObject, bc, MODIFY_POLYGONSELECTION); // ID_MODELING_MATRIX_EXTRUDE_TOOL
if (!myres) { println("poss error. SMC returned false ", myres); } else println("***SMC called***"); currentObject->Message(MSG_UPDATE); }
currentObject = BaseDoc->FindObject("Null Object"); BaseDoc->SetActiveObject(currentObject); }
oldSteps = Steps; }
i do not have r9.6, but i figured it would be easier for everybody to test and comment on. to create the scene file:
is there a faster way of posting a file??? thanks for your help.
On 03/11/2006 at 01:10, xxxxxxxx wrote:
I am afraid you can't do it this way. You can't add geometry during rendering. You can do this only with a Object plugin and the C++ SDK.
cheers, Matthias
On 03/11/2006 at 11:33, xxxxxxxx wrote:
Thank you for the fast and accurate reply.
The C++ SDK is powerful, but also something I'm not quite ready for. Thank you for providing a direction to study.
Is there any other method suggested for doing something like this in COFFEE?
The one I'm considering is to do a sweeps nurbs using a spline created from the selected polygon edges. This may not work for the same reason given, but if I create the geometry beforehand, then maybe I will be able to animated the growth of the sweeps nurbs object(s). What do you think?
Lastly, can geometry be subtracted or deleted during rendering? Or is there a way to copy just the geometry from one object to another without adding it? Am I being too litteral with the term "add geometry" and hoping to find a trick that doesn't exist?
Thanks again.