assimp/code/FBXMaterial.cpp

/*
Open Asset Import Library (assimp)
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*/

/** @file  FBXMaterial.cpp
 *  @brief Assimp::FBX::Material and Assimp::FBX::Texture implementation
 */

#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER

#include "FBXParser.h"
#include "FBXDocument.h"
#include "FBXImporter.h"
#include "FBXImportSettings.h"
#include "FBXDocumentUtil.h"
#include "FBXProperties.h"
#include <boost/foreach.hpp>

namespace Assimp {
namespace FBX {

	using namespace Util;

// ------------------------------------------------------------------------------------------------
Material::Material(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Object(id,element,name)
{
	const Scope& sc = GetRequiredScope(element);
	
	const Element* const ShadingModel = sc["ShadingModel"];
	const Element* const MultiLayer = sc["MultiLayer"];

	if(MultiLayer) {
		multilayer = !!ParseTokenAsInt(GetRequiredToken(*MultiLayer,0));
	}

	if(ShadingModel) {
		shading = ParseTokenAsString(GetRequiredToken(*ShadingModel,0));
	}
	else {
		DOMWarning("shading mode not specified, assuming phong",&element);
		shading = "phong";
	}

	std::string templateName;

	const char* const sh = shading.c_str();
	if(!strcmp(sh,"phong")) {
		templateName = "Material.FbxSurfacePhong";
	}
	else if(!strcmp(sh,"lambert")) {
		templateName = "Material.FbxSurfaceLambert";
	}
	else {
		DOMWarning("shading mode not recognized: " + shading,&element);
	}

	props = GetPropertyTable(doc,templateName,element,sc);

	// resolve texture links
	const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
	BOOST_FOREACH(const Connection* con, conns) {

		// texture link to properties, not objects
		if (!con->PropertyName().length()) {
			continue;
		}

		const Object* const ob = con->SourceObject();
		if(!ob) {
			DOMWarning("failed to read source object for texture link, ignoring",&element);
			continue;
		}

		const Texture* const tex = dynamic_cast<const Texture*>(ob);
		if(!tex) {
			const LayeredTexture* const layeredTexture = dynamic_cast<const LayeredTexture*>(ob);
			if(!layeredTexture) {
				DOMWarning("source object for texture link is not a texture or layered texture, ignoring",&element);
				continue;
			}
			const std::string& prop = con->PropertyName();
			if (layeredTextures.find(prop) != layeredTextures.end()) {
				DOMWarning("duplicate layered texture link: " + prop,&element);
			}

			layeredTextures[prop] = layeredTexture;
			((LayeredTexture*)layeredTexture)->fillTexture(doc);
		}
		else
		{
			const std::string& prop = con->PropertyName();
			if (textures.find(prop) != textures.end()) {
				DOMWarning("duplicate texture link: " + prop,&element);
			}

			textures[prop] = tex;
		}

	}
}


// ------------------------------------------------------------------------------------------------
Material::~Material()
{
}


// ------------------------------------------------------------------------------------------------
Texture::Texture(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Object(id,element,name)
, uvScaling(1.0f,1.0f)
{
	const Scope& sc = GetRequiredScope(element);

	const Element* const Type = sc["Type"];
	const Element* const FileName = sc["FileName"];
	const Element* const RelativeFilename = sc["RelativeFilename"];
	const Element* const ModelUVTranslation = sc["ModelUVTranslation"];
	const Element* const ModelUVScaling = sc["ModelUVScaling"];
	const Element* const Texture_Alpha_Source = sc["Texture_Alpha_Source"];
	const Element* const Cropping = sc["Cropping"];

	if(Type) {
		type = ParseTokenAsString(GetRequiredToken(*Type,0));
	}

	if(FileName) {
		fileName = ParseTokenAsString(GetRequiredToken(*FileName,0));
	}

	if(RelativeFilename) {
		relativeFileName = ParseTokenAsString(GetRequiredToken(*RelativeFilename,0));
	}

	if(ModelUVTranslation) {
		uvTrans = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,0)),
			ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,1))
		);
	}

	if(ModelUVScaling) {
		uvScaling = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,0)),
			ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,1))
		);
	}

	if(Cropping) {
		crop[0] = ParseTokenAsInt(GetRequiredToken(*Cropping,0));
		crop[1] = ParseTokenAsInt(GetRequiredToken(*Cropping,1));
		crop[2] = ParseTokenAsInt(GetRequiredToken(*Cropping,2));
		crop[3] = ParseTokenAsInt(GetRequiredToken(*Cropping,3));
	}
	else {
		// vc8 doesn't support the crop() syntax in initialization lists
		// (and vc9 WARNS about the new (i.e. compliant) behaviour).
		crop[0] = crop[1] = crop[2] = crop[3] = 0;
	}

	if(Texture_Alpha_Source) {
		alphaSource = ParseTokenAsString(GetRequiredToken(*Texture_Alpha_Source,0));
	}

	props = GetPropertyTable(doc,"Texture.FbxFileTexture",element,sc);
}


Texture::~Texture()
{

}

LayeredTexture::LayeredTexture(uint64_t id, const Element& element, const Document& /*doc*/, const std::string& name)
: Object(id,element,name)
,texture(0)
,blendMode(BlendMode_Modulate)
,alpha(1)
{
	const Scope& sc = GetRequiredScope(element);

	const Element* const BlendModes = sc["BlendModes"];
	const Element* const Alphas = sc["Alphas"];

	
	if(BlendModes!=0)
	{
		blendMode = (BlendMode)ParseTokenAsInt(GetRequiredToken(*BlendModes,0));
	}
	if(Alphas!=0)
	{
		alpha = ParseTokenAsFloat(GetRequiredToken(*Alphas,0));
	}
}

LayeredTexture::~LayeredTexture()
{

}

void LayeredTexture::fillTexture(const Document& doc)
{
	const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
	for(size_t i = 0; i < conns.size();++i)
	{
		const Connection* con = conns.at(i);

		const Object* const ob = con->SourceObject();
		if(!ob) {
			DOMWarning("failed to read source object for texture link, ignoring",&element);
			continue;
		}

		const Texture* const tex = dynamic_cast<const Texture*>(ob);

		texture = tex;
	}
}

} //!FBX
} //!Assimp

#endif