GA_RWHandleV3 SHelper::addFloatVectorDetailAttr(GU_Detail* gdp, const char* name, float* def)
{
GA_RWAttributeRef attr;
if(def) attr = gdp->addFloatTuple(GA_ATTRIB_GLOBAL, name, 3, GA_Defaults(def, 3));
else attr = gdp->addFloatTuple(GA_ATTRIB_GLOBAL, name, 3);
attr.setTypeInfo(GA_TYPE_VECTOR);
return GA_RWHandleV3( attr.getAttribute() );
}
GA_RWHandleV3 SHelper::findDetailAttrV3(GU_Detail* gdp, const char* name)
{
return GA_RWHandleV3( gdp->findGlobalAttribute(name)/*.getAttribute()*/ );
}
OP_ERROR aaOceanSOP::cookMySop(OP_Context &context)
{
if (lockInputs(context) >= UT_ERROR_ABORT)
return error();
duplicateSource(0, context);
setVariableOrder(3, 2, 0, 1);
setCurGdh(0, myGdpHandle);
setupLocalVars();
// variable declarations
float now = context.getTime();
// Flag the SOP as being time dependent (i.e. cook on time changes)
flags().timeDep = 1;
// start pulling in SOP inputs and send to aaOcean
enableEigens = (ENABLEEIGENS() != 0);
if(pOcean->isChoppy() && enableEigens)
enableEigens = TRUE;
now = now + TIMEOFFSET(now);
pOcean->input( RESOLUTION(),
SEED(),
OCEANSCALE(now),
OCEANDEPTH(now),
SURFACETENSION(now),
VELOCITY(now),
CUTOFF(now),
WINDDIR(now),
WINDALIGN(),
DAMP(now),
WAVESPEED(now),
WAVEHEIGHT(now),
CHOP(now),
now,
LOOPTIME(now),
enableEigens,
FALSE);
// get the user-specified attribute that holds uv-data
getUVAttributeName(UvAttribute);
if(UvAttribute.length() == 0)
UvAttribute = "uv";
const char* UVAttribName = (const char *)UvAttribute;
uvRef = gdp->findFloatTuple(GA_ATTRIB_POINT, UVAttribName, 3);
if(uvRef.isValid() == TRUE)
{
uvAttribute = uvRef.getAttribute();
uvTuple = uvRef.getAIFTuple();
}
else
{
// uv attribute not found
char msg[256];
sprintf(msg, "[aaOcean] Specified UV attribute \'%s\' not found on geometry.\
\nUV's are required for aaOcean to cook", UVAttribName);
std::cout<<msg;
std::cout.flush();
addError(SOP_MESSAGE, msg);
unlockInputs();
return error();
}
// setup local variables to output Eigens
if(enableEigens)
{
eVecPlusRef = gdp->addFloatTuple(GA_ATTRIB_POINT, eVecPlusName, 3);
eVecMinusRef = gdp->addFloatTuple(GA_ATTRIB_POINT, eVecMinusName, 3);
eValuesRef = gdp->addFloatTuple(GA_ATTRIB_POINT, eValuesName, 1);
eVecPlusHandle = GA_RWHandleV3(eVecPlusRef.getAttribute());
eVecMinusHandle = GA_RWHandleV3(eVecMinusRef.getAttribute());
eValuesHandle = GA_RWHandleF(eValuesRef.getAttribute());
}
// inputs validated. Begin writing ocean data to output handles
int npts = gdp->getNumPoints();
#pragma omp parallel for
for (int pt_offset = 0; pt_offset < npts; ++pt_offset)
{
UT_Vector3F pos = gdp->getPos3(pt_offset);
UT_Vector3F UV;
uvTuple->get(uvAttribute, pt_offset, UV.data(), 3);
// Houdini V coord runs in opposite direction compared to Softimage/Maya
// Conforming with other apps to make ocean shape consistent across apps
float u = UV.x();
float v = 1.0f - (fmod(UV.y(), 1.0f));
pos.y() += pOcean->getOceanData(u, v, aaOcean::eHEIGHTFIELD);
if(pOcean->isChoppy())
{
pos.x() += pOcean->getOceanData(u, v, aaOcean::eCHOPX);
pos.z() += pOcean->getOceanData(u, v, aaOcean::eCHOPZ);
}
gdp->setPos3(pt_offset, pos);
if(enableEigens)
{
UT_Vector3F eigenVectorPlusValue;
UT_Vector3F eigenVectorMinusValue;
float eigenValue;
eigenVectorPlusValue.x() = pOcean->getOceanData(u, v, aaOcean::eEIGENPLUSX);
eigenVectorPlusValue.y() = 0.0f;
eigenVectorPlusValue.z() = pOcean->getOceanData(u, v, aaOcean::eEIGENPLUSZ);
eigenVectorMinusValue.x() = pOcean->getOceanData(u, v, aaOcean::eEIGENMINUSX);
eigenVectorMinusValue.y() = 0.0f;
eigenVectorMinusValue.z() = pOcean->getOceanData(u, v, aaOcean::eEIGENMINUSZ);
eigenValue = pOcean->getOceanData(u, v, aaOcean::eFOAM);
eVecPlusHandle.set(pt_offset,eigenVectorPlusValue);
eVecMinusHandle.set(pt_offset,eigenVectorMinusValue);
eValuesHandle.set(pt_offset,eigenValue);
}
}
unlockInputs();
return error();
}