( function () {
class LWO3Parser {
constructor( IFFParser ) {
this.IFF = IFFParser;
}
parseBlock() {
this.IFF.debugger.offset = this.IFF.reader.offset;
this.IFF.debugger.closeForms();
const blockID = this.IFF.reader.getIDTag();
const length = this.IFF.reader.getUint32(); // size of data in bytes
this.IFF.debugger.dataOffset = this.IFF.reader.offset;
this.IFF.debugger.length = length; // Data types may be found in either LWO2 OR LWO3 spec
switch ( blockID ) {
case 'FORM':
// form blocks may consist of sub -chunks or sub-forms
this.IFF.parseForm( length );
break;
// SKIPPED CHUNKS
// MISC skipped
case 'ICON': // Thumbnail Icon Image
case 'VMPA': // Vertex Map Parameter
case 'BBOX': // bounding box
// case 'VMMD':
// case 'VTYP':
// normal maps can be specified, normally on models imported from other applications. Currently ignored
case 'NORM': // ENVL FORM skipped
case 'PRE ': // Pre-loop behavior for the keyframe
case 'POST': // Post-loop behavior for the keyframe
case 'KEY ':
case 'SPAN': // CLIP FORM skipped
case 'TIME':
case 'CLRS':
case 'CLRA':
case 'FILT':
case 'DITH':
case 'CONT':
case 'BRIT':
case 'SATR':
case 'HUE ':
case 'GAMM':
case 'NEGA':
case 'IFLT':
case 'PFLT': // Image Map Layer skipped
case 'PROJ':
case 'AXIS':
case 'AAST':
case 'PIXB':
case 'STCK': // Procedural Textures skipped
case 'VALU': // Gradient Textures skipped
case 'PNAM':
case 'INAM':
case 'GRST':
case 'GREN':
case 'GRPT':
case 'FKEY':
case 'IKEY': // Texture Mapping Form skipped
case 'CSYS': // Surface CHUNKs skipped
case 'OPAQ': // top level 'opacity' checkbox
case 'CMAP': // clip map
// Surface node CHUNKS skipped
// These mainly specify the node editor setup in LW
case 'NLOC':
case 'NZOM':
case 'NVER':
case 'NSRV':
case 'NCRD':
case 'NMOD':
case 'NSEL':
case 'NPRW':
case 'NPLA':
case 'VERS':
case 'ENUM':
case 'TAG ': // Car Material CHUNKS
case 'CGMD':
case 'CGTY':
case 'CGST':
case 'CGEN':
case 'CGTS':
case 'CGTE':
case 'OSMP':
case 'OMDE':
case 'OUTR':
case 'FLAG':
case 'TRNL':
case 'SHRP':
case 'RFOP':
case 'RSAN':
case 'TROP':
case 'RBLR':
case 'TBLR':
case 'CLRH':
case 'CLRF':
case 'ADTR':
case 'GLOW':
case 'LINE':
case 'ALPH':
case 'VCOL':
case 'ENAB':
this.IFF.debugger.skipped = true;
this.IFF.reader.skip( length );
break;
// Texture node chunks (not in spec)
case 'IPIX': // usePixelBlending
case 'IMIP': // useMipMaps
case 'IMOD': // imageBlendingMode
case 'AMOD': // unknown
case 'IINV': // imageInvertAlpha
case 'INCR': // imageInvertColor
case 'IAXS': // imageAxis ( for non-UV maps)
case 'IFOT': // imageFallofType
case 'ITIM': // timing for animated textures
case 'IWRL':
case 'IUTI':
case 'IINX':
case 'IINY':
case 'IINZ':
case 'IREF':
// possibly a VX for reused texture nodes
if ( length === 4 ) this.IFF.currentNode[ blockID ] = this.IFF.reader.getInt32(); else this.IFF.reader.skip( length );
break;
case 'OTAG':
this.IFF.parseObjectTag();
break;
case 'LAYR':
this.IFF.parseLayer( length );
break;
case 'PNTS':
this.IFF.parsePoints( length );
break;
case 'VMAP':
this.IFF.parseVertexMapping( length );
break;
case 'POLS':
this.IFF.parsePolygonList( length );
break;
case 'TAGS':
this.IFF.parseTagStrings( length );
break;
case 'PTAG':
this.IFF.parsePolygonTagMapping( length );
break;
case 'VMAD':
this.IFF.parseVertexMapping( length, true );
break;
// Misc CHUNKS
case 'DESC':
// Description Line
this.IFF.currentForm.description = this.IFF.reader.getString();
break;
case 'TEXT':
case 'CMNT':
case 'NCOM':
this.IFF.currentForm.comment = this.IFF.reader.getString();
break;
// Envelope Form
case 'NAME':
this.IFF.currentForm.channelName = this.IFF.reader.getString();
break;
// Image Map Layer
case 'WRAP':
this.IFF.currentForm.wrap = {
w: this.IFF.reader.getUint16(),
h: this.IFF.reader.getUint16()
};
break;
case 'IMAG':
const index = this.IFF.reader.getVariableLengthIndex();
this.IFF.currentForm.imageIndex = index;
break;
// Texture Mapping Form
case 'OREF':
this.IFF.currentForm.referenceObject = this.IFF.reader.getString();
break;
case 'ROID':
this.IFF.currentForm.referenceObjectID = this.IFF.reader.getUint32();
break;
// Surface Blocks
case 'SSHN':
this.IFF.currentSurface.surfaceShaderName = this.IFF.reader.getString();
break;
case 'AOVN':
this.IFF.currentSurface.surfaceCustomAOVName = this.IFF.reader.getString();
break;
// Nodal Blocks
case 'NSTA':
this.IFF.currentForm.disabled = this.IFF.reader.getUint16();
break;
case 'NRNM':
this.IFF.currentForm.realName = this.IFF.reader.getString();
break;
case 'NNME':
this.IFF.currentForm.refName = this.IFF.reader.getString();
this.IFF.currentSurface.nodes[ this.IFF.currentForm.refName ] = this.IFF.currentForm;
break;
// Nodal Blocks : connections
case 'INME':
if ( ! this.IFF.currentForm.nodeName ) this.IFF.currentForm.nodeName = [];
this.IFF.currentForm.nodeName.push( this.IFF.reader.getString() );
break;
case 'IINN':
if ( ! this.IFF.currentForm.inputNodeName ) this.IFF.currentForm.inputNodeName = [];
this.IFF.currentForm.inputNodeName.push( this.IFF.reader.getString() );
break;
case 'IINM':
if ( ! this.IFF.currentForm.inputName ) this.IFF.currentForm.inputName = [];
this.IFF.currentForm.inputName.push( this.IFF.reader.getString() );
break;
case 'IONM':
if ( ! this.IFF.currentForm.inputOutputName ) this.IFF.currentForm.inputOutputName = [];
this.IFF.currentForm.inputOutputName.push( this.IFF.reader.getString() );
break;
case 'FNAM':
this.IFF.currentForm.fileName = this.IFF.reader.getString();
break;
case 'CHAN':
// NOTE: ENVL Forms may also have CHAN chunk, however ENVL is currently ignored
if ( length === 4 ) this.IFF.currentForm.textureChannel = this.IFF.reader.getIDTag(); else this.IFF.reader.skip( length );
break;
// LWO2 Spec chunks: these are needed since the SURF FORMs are often in LWO2 format
case 'SMAN':
const maxSmoothingAngle = this.IFF.reader.getFloat32();
this.IFF.currentSurface.attributes.smooth = maxSmoothingAngle < 0 ? false : true;
break;
// LWO2: Basic Surface Parameters
case 'COLR':
this.IFF.currentSurface.attributes.Color = {
value: this.IFF.reader.getFloat32Array( 3 )
};
this.IFF.reader.skip( 2 ); // VX: envelope
break;
case 'LUMI':
this.IFF.currentSurface.attributes.Luminosity = {
value: this.IFF.reader.getFloat32()
};
this.IFF.reader.skip( 2 );
break;
case 'SPEC':
this.IFF.currentSurface.attributes.Specular = {
value: this.IFF.reader.getFloat32()
};
this.IFF.reader.skip( 2 );
break;
case 'DIFF':
this.IFF.currentSurface.attributes.Diffuse = {
value: this.IFF.reader.getFloat32()
};
this.IFF.reader.skip( 2 );
break;
case 'REFL':
this.IFF.currentSurface.attributes.Reflection = {
value: this.IFF.reader.getFloat32()
};
this.IFF.reader.skip( 2 );
break;
case 'GLOS':
this.IFF.currentSurface.attributes.Glossiness = {
value: this.IFF.reader.getFloat32()
};
this.IFF.reader.skip( 2 );
break;
case 'TRAN':
this.IFF.currentSurface.attributes.opacity = this.IFF.reader.getFloat32();
this.IFF.reader.skip( 2 );
break;
case 'BUMP':
this.IFF.currentSurface.attributes.bumpStrength = this.IFF.reader.getFloat32();
this.IFF.reader.skip( 2 );
break;
case 'SIDE':
this.IFF.currentSurface.attributes.side = this.IFF.reader.getUint16();
break;
case 'RIMG':
this.IFF.currentSurface.attributes.reflectionMap = this.IFF.reader.getVariableLengthIndex();
break;
case 'RIND':
this.IFF.currentSurface.attributes.refractiveIndex = this.IFF.reader.getFloat32();
this.IFF.reader.skip( 2 );
break;
case 'TIMG':
this.IFF.currentSurface.attributes.refractionMap = this.IFF.reader.getVariableLengthIndex();
break;
case 'IMAP':
this.IFF.currentSurface.attributes.imageMapIndex = this.IFF.reader.getUint32();
break;
case 'IUVI':
// uv channel name
this.IFF.currentNode.UVChannel = this.IFF.reader.getString( length );
break;
case 'IUTL':
// widthWrappingMode: 0 = Reset, 1 = Repeat, 2 = Mirror, 3 = Edge
this.IFF.currentNode.widthWrappingMode = this.IFF.reader.getUint32();
break;
case 'IVTL':
// heightWrappingMode
this.IFF.currentNode.heightWrappingMode = this.IFF.reader.getUint32();
break;
default:
this.IFF.parseUnknownCHUNK( blockID, length );
}
if ( blockID != 'FORM' ) {
this.IFF.debugger.node = 1;
this.IFF.debugger.nodeID = blockID;
this.IFF.debugger.log();
}
if ( this.IFF.reader.offset >= this.IFF.currentFormEnd ) {
this.IFF.currentForm = this.IFF.parentForm;
}
}
}
THREE.LWO3Parser = LWO3Parser;
} )();
