MObject create(Alembic::AbcGeom::ICamera & iNode, MObject & iParent) { Alembic::AbcGeom::ICameraSchema schema = iNode.getSchema(); MString name(iNode.getName().c_str()); MFnCamera fnCamera; MObject obj = fnCamera.create(iParent); fnCamera.setName(name); // we need to read this to determine the film fit Alembic::AbcGeom::CameraSample samp; iNode.getSchema().get(samp); std::size_t numOps = samp.getNumOps(); if (numOps > 0) { std::string hint = samp[0].getHint(); if (hint == "filmFitFill") { fnCamera.setFilmFit(MFnCamera::kFillFilmFit); } else if (hint == "filmFitHorz") { fnCamera.setFilmFit(MFnCamera::kHorizontalFilmFit); } else if (hint == "filmFitVert") { fnCamera.setFilmFit(MFnCamera::kVerticalFilmFit); } else if (hint == "filmFitOver") { fnCamera.setFilmFit(MFnCamera::kOverscanFilmFit); } } if (schema.isConstant()) { // no center of interest fnCamera.setFocalLength(samp.getFocalLength()); fnCamera.setLensSqueezeRatio(samp.getLensSqueezeRatio()); // camera scale might be in the 3x3 // weirdo attrs that are in inches fnCamera.setHorizontalFilmAperture(samp.getHorizontalAperture()/2.54); fnCamera.setVerticalFilmAperture(samp.getVerticalAperture()/2.54); fnCamera.setHorizontalFilmOffset(samp.getHorizontalFilmOffset()/2.54); fnCamera.setVerticalFilmOffset(samp.getVerticalFilmOffset()/2.54); // film fit offset might be in the 3x3 if (samp.getOverScanLeft() == samp.getOverScanRight() && samp.getOverScanTop() == samp.getOverScanBottom() && samp.getOverScanLeft() == samp.getOverScanTop()) { fnCamera.setOverscan(samp.getOverScanLeft() + 1.0); } else { MString warn = iNode.getName().c_str(); warn += " has unsupported overscan values."; MGlobal::displayWarning(warn); } fnCamera.setNearClippingPlane(samp.getNearClippingPlane()); fnCamera.setFarClippingPlane(samp.getFarClippingPlane()); // prescale, film translate H, V, roll pivot H,V, film roll value // post scale might be in the 3x3 fnCamera.setFStop(samp.getFStop()); fnCamera.setFocusDistance(samp.getFocusDistance()); MTime sec(1.0, MTime::kSeconds); fnCamera.setShutterAngle(Alembic::AbcGeom::DegreesToRadians( 360.0 * (samp.getShutterClose()-samp.getShutterOpen()) * sec.as(MTime::uiUnit()) )); for (std::size_t i = 0; i < numOps; ++i) { Alembic::AbcGeom::FilmBackXformOp & op = samp[i]; if (op.getHint() == "filmFitOffs") { double val = op.getChannelValue(0) * samp.getHorizontalAperture() / 5.08; if (val != 0.0) { fnCamera.setFilmFitOffset(val); } else { fnCamera.setFilmFitOffset(op.getChannelValue(1) * samp.getHorizontalAperture() / 5.08); } } else if (op.getHint() == "preScale") { fnCamera.setPreScale(1.0/op.getChannelValue(0)); } else if (op.getHint() == "filmTranslate") { fnCamera.setFilmTranslateH(op.getChannelValue(0)); fnCamera.setFilmTranslateV(op.getChannelValue(1)); } else if (op.getHint() == "postScale") { fnCamera.setPostScale(1.0/op.getChannelValue(0)); } else if (op.getHint() == "cameraScale") { fnCamera.setCameraScale(op.getChannelValue(0)); } } } // extra transform node is unfortuneatly automatically created above the // camera, let's do some reparenting and delete that extra transform MDagPath path; fnCamera.getPath(path); MObject camObj = path.node(); MDagModifier dagMod; dagMod.reparentNode(camObj, iParent); dagMod.doIt(); dagMod.deleteNode(obj); dagMod.doIt(); return camObj; }