Hi,
I`m trying to create a SOP node, that basically does the same thing as the copytopoints SOP in Houdini but with a Box deformation added to it.
Now I was able to copy the detail from the second Input into the gdp, but I find myself unable to access the newly added geo to actually offset it to the corresponding point in the first input.
I want to add that I am a noobie when it comes to HDK (as you can probably see)
and any help is much appreciated and thanks in advance.
OP_ERROR SOP_copyPTs::cookMySop(OP_Context &context)
{
OP_AutoLockInputs inputs(this);
if (inputs.lock(context) >= UT_ERROR_ABORT)
return error();
const GU_Detail *firstGDP = inputGeo(0, context);
const GU_Detail *secondGDP = inputGeo(1, context);
UT_AutoInterrupt progress("still copying...");
duplicateSource(0, context);
GA_RWHandleV3 Phandle(gdp->findAttribute(GA_ATTRIB_POINT, "P"));
GA_Offset firstPToff;
GEO_CopyMethod copymethod = GEO_COPY_ADD;
GA_FOR_ALL_PTOFF(firstGDP, firstPToff)
{
if (progress.wasInterrupted())
break;
gdp->copy(*secondGDP, copymethod, true, false, GA_DATA_ID_CLONE);
UT_Vector3 Pvalue = Phandle.get(firstPToff);
}
Phandle.bumpDataId();
return error();
}
i got it to work! (propably a pretty bad way to do it but it works)
(orientation is working as well now but its not in the code down below)
I am still very interested how experienced users would have written it. :S
GA_FOR_ALL_PTOFF(firstGDP, gridPoints)
{
if (progress.wasInterrupted())
break;
GU_Detail *newgdp = new GU_Detail();
GA_RWHandleV3 newPhandle(newgdp->findAttribute(GA_ATTRIB_POINT, "P"));
newgdp->copy(*secondGDP, copymethod, true, false, GA_DATA_ID_CLONE);
GA_Offset spherePoint;
UT_Vector3 pointPos = Phandle.get(gridPoints);
GA_FOR_ALL_PTOFF(newgdp, spherePoint)
{
UT_Vector3 spherePos = newPhandle.get(spherePoint);
UT_Vector3 addedPos = spherePos + pointPos;
newPhandle.set(spherePoint, addedPos);
}
gdp->copy(*newgdp, copymethod, true, false, GA_DATA_ID_CLONE);
}
