void CoronaRenderer::defineMesh(mtco_MayaObject *obj)
{
MObject meshObject = obj->mobject;
MStatus stat = MStatus::kSuccess;
bool hasDisplacement = false;
Corona::Abstract::Map *displacementMap = NULL;
float displacementMin = 0.0f;
float displacementMax = 0.01f;
// I do it here for displacement mapping, maybe we should to another place
getObjectShadingGroups(obj->dagPath, obj->perFaceAssignments, obj->shadingGroups);
if( obj->shadingGroups.length() > 0)
{
MFnDependencyNode shadingGroup(obj->shadingGroups[0]);
MString sgn = shadingGroup.name();
MObject displacementObj = getConnectedInNode(obj->shadingGroups[0], "displacementShader");
MString doo = getObjectName(displacementObj);
if( (displacementObj != MObject::kNullObj) && (displacementObj.hasFn(MFn::kDisplacementShader)))
{
MObject displacementMapObj = getConnectedInNode(displacementObj, "displacement");
if( (displacementMapObj != MObject::kNullObj) && (displacementMapObj.hasFn(MFn::kFileTexture)))
{
MFnDependencyNode displacmentMapNode(displacementObj);
getFloat("mtco_displacementMin", displacmentMapNode, displacementMin);
getFloat("mtco_displacementMax", displacmentMapNode, displacementMax);
MString fileTexturePath = getConnectedFileTexturePath(MString("displacement"), displacmentMapNode);
if( fileTexturePath != "")
{
MapLoader loader;
displacementMap = loader.loadBitmap(fileTexturePath.asChar());
hasDisplacement = true;
}
}
}
}
MFnMesh meshFn(meshObject, &stat);
CHECK_MSTATUS(stat);
MItMeshPolygon faceIt(meshObject, &stat);
CHECK_MSTATUS(stat);
MPointArray points;
meshFn.getPoints(points);
MFloatVectorArray normals;
meshFn.getNormals( normals, MSpace::kWorld );
MFloatArray uArray, vArray;
meshFn.getUVs(uArray, vArray);
//logger.debug(MString("Translating mesh object ") + meshFn.name().asChar());
MString meshFullName = makeGoodString(meshFn.fullPathName());
Corona::TriangleData td;
Corona::IGeometryGroup* geom = NULL;
geom = this->context.scene->addGeomGroup();
obj->geom = geom;
for( uint vtxId = 0; vtxId < points.length(); vtxId++)
{
geom->getVertices().push(Corona::Pos(points[vtxId].x,points[vtxId].y,points[vtxId].z));
}
for( uint nId = 0; nId < normals.length(); nId++)
{
geom->getNormals().push(Corona::Dir(normals[nId].x,normals[nId].y,normals[nId].z));
}
for( uint tId = 0; tId < uArray.length(); tId++)
{
geom->getMapCoords().push(Corona::Pos(uArray[tId],vArray[tId],0.0f));
geom->getMapCoordIndices().push(geom->getMapCoordIndices().size());
}
MPointArray triPoints;
MIntArray triVtxIds;
MIntArray faceVtxIds;
MIntArray faceNormalIds;
for(faceIt.reset(); !faceIt.isDone(); faceIt.next())
{
int faceId = faceIt.index();
int numTris;
faceIt.numTriangles(numTris);
faceIt.getVertices(faceVtxIds);
MIntArray faceUVIndices;
faceNormalIds.clear();
for( uint vtxId = 0; vtxId < faceVtxIds.length(); vtxId++)
{
faceNormalIds.append(faceIt.normalIndex(vtxId));
int uvIndex;
faceIt.getUVIndex(vtxId, uvIndex);
faceUVIndices.append(uvIndex);
}
for( int triId = 0; triId < numTris; triId++)
{
int faceRelIds[3];
faceIt.getTriangle(triId, triPoints, triVtxIds);
for( uint triVtxId = 0; triVtxId < 3; triVtxId++)
{
for(uint faceVtxId = 0; faceVtxId < faceVtxIds.length(); faceVtxId++)
{
if( faceVtxIds[faceVtxId] == triVtxIds[triVtxId])
{
faceRelIds[triVtxId] = faceVtxId;
}
}
}
uint vtxId0 = faceVtxIds[faceRelIds[0]];
uint vtxId1 = faceVtxIds[faceRelIds[1]];
uint vtxId2 = faceVtxIds[faceRelIds[2]];
uint normalId0 = faceNormalIds[faceRelIds[0]];
uint normalId1 = faceNormalIds[faceRelIds[1]];
uint normalId2 = faceNormalIds[faceRelIds[2]];
uint uvId0 = faceUVIndices[faceRelIds[0]];
uint uvId1 = faceUVIndices[faceRelIds[1]];
uint uvId2 = faceUVIndices[faceRelIds[2]];
if( hasDisplacement )
{
Corona::DisplacedTriangleData tri;
tri.displacement.map = displacementMap;
MPoint p0 = points[vtxId0];
MPoint p1 = points[vtxId1];
MPoint p2 = points[vtxId2];
tri.v[0] = Corona::AnimatedPos(Corona::Pos(p0.x, p0.y, p0.z));
tri.v[1] = Corona::AnimatedPos(Corona::Pos(p1.x, p1.y, p1.z));
tri.v[2] = Corona::AnimatedPos(Corona::Pos(p2.x, p2.y, p2.z));
MVector n0 = normals[normalId0];
MVector n1 = normals[normalId1];
MVector n2 = normals[normalId2];
Corona::Dir dir0(n0.x, n0.y, n0.z);
Corona::Dir dir1(n1.x, n1.y, n1.z);
Corona::Dir dir2(n2.x, n2.y, n2.z);
tri.n[0] = Corona::AnimatedDir(dir0);
tri.n[1] = Corona::AnimatedDir(dir1);
tri.n[2] = Corona::AnimatedDir(dir2);
Corona::Pos uv0(uArray[uvId0],vArray[uvId0],0.0);
Corona::Pos uv1(uArray[uvId1],vArray[uvId1],0.0);
Corona::Pos uv2(uArray[uvId2],vArray[uvId2],0.0);
Corona::StaticArray<Corona::Pos, 3> uvp;
uvp[0] = uv0;
uvp[1] = uv1;
uvp[2] = uv2;
tri.t.push(uvp);
tri.materialId = 0;
tri.displacement.min = displacementMin;
tri.displacement.max = displacementMax;
geom->addPrimitive(tri);
}else{
Corona::TriangleData tri;
tri.v = Corona::AnimatedPosI3(vtxId0, vtxId1, vtxId2);
tri.n = Corona::AnimatedDirI3(normalId0, normalId1, normalId2);
tri.t[0] = uvId0;
tri.t[1] = uvId1;
tri.t[2] = uvId2;
tri.materialId = 0;
geom->addPrimitive(tri);
}
}
}
}
