Import basic material options

--HG--
branch : feature-export-assimp

code/nel/tools/3d/mesh_utils/assimp_material.cpp

@@ -0,0 +1,143 @@
+// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
+// Copyright (C) 2015  Winch Gate Property Limited
+// Author: Jan Boon <jan.boon@kaetemi.be>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <nel/misc/types_nl.h>
+#include "assimp_shape.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+#define NL_NODE_INTERNAL_TYPE aiNode
+#define NL_SCENE_INTERNAL_TYPE aiScene
+#include "scene_context.h"
+
+#include <nel/misc/debug.h>
+#include <nel/misc/path.h>
+#include <nel/misc/tool_logger.h>
+
+#include <nel/3d/mesh.h>
+
+using namespace std;
+using namespace NLMISC;
+using namespace NL3D;
+
+// http://assimp.sourceforge.net/lib_html/materials.html
+
+inline CRGBA convColor(const aiColor3D &ac)
+{
+	return CRGBA(ac.r * 255.99f, ac.g * 255.99f, ac.b * 255.99f);
+}
+
+inline CRGBA convColor(const aiColor4D &ac)
+{
+	return CRGBA(ac.r * 255.99f, ac.g * 255.99f, ac.b * 255.99f, ac.a * 255.99f);
+}
+
+CSmartPtr<CMaterial> assimpMaterial(CMeshUtilsContext &context, const aiMaterial *am)
+{
+	CSmartPtr<CMaterial> matp = new CMaterial();
+	CMaterial &mat = *matp;
+	mat.initLighted();
+	mat.setShader(CMaterial::Normal);
+
+	int i;
+	float f;
+	aiColor3D c3;
+	aiColor4D c4;
+
+	if (am->Get(AI_MATKEY_TWOSIDED, i) == aiReturn_SUCCESS)
+		mat.setDoubleSided(i != 0);
+
+	if (am->Get(AI_MATKEY_BLEND_FUNC, i) == aiReturn_SUCCESS) switch ((aiBlendMode)i)
+	{
+	case aiBlendMode_Default:
+		mat.setSrcBlend(CMaterial::srcalpha);
+		mat.setDstBlend(CMaterial::invsrcalpha);
+		break;
+	case aiBlendMode_Additive:
+		mat.setSrcBlend(CMaterial::one);
+		mat.setDstBlend(CMaterial::one);
+		break;
+	}
+
+	if (am->Get(AI_MATKEY_OPACITY, f) == aiReturn_SUCCESS)
+		mat.setOpacity(f * 255.99f);
+
+	if (am->Get(AI_MATKEY_SHININESS, f) == aiReturn_SUCCESS)
+		mat.setShininess(f); // OR (float)pow(2.0, shininess * 10.0) * 4.f ??
+
+	if (am->Get(AI_MATKEY_COLOR_DIFFUSE, c3) == aiReturn_SUCCESS)
+	{
+		CRGBA diffuse = convColor(c3);
+		diffuse.A = mat.getOpacity();
+		mat.setDiffuse(diffuse);
+	}
+
+	if (am->Get(AI_MATKEY_COLOR_AMBIENT, c3) == aiReturn_SUCCESS)
+		mat.setAmbient(convColor(c3));
+
+	if (am->Get(AI_MATKEY_COLOR_SPECULAR, c3) == aiReturn_SUCCESS)
+	{
+		CRGBA specular = convColor(c3);
+		if (am->Get(AI_MATKEY_SHININESS_STRENGTH, f) == aiReturn_SUCCESS)
+		{
+			CRGBAF fColor = specular;
+			fColor *= f;
+			uint8 a = specular.A;
+			specular = fColor;
+			specular.A = a;
+		}
+		mat.setSpecular(specular);
+	}
+
+	if (am->Get(AI_MATKEY_COLOR_EMISSIVE, c3) == aiReturn_SUCCESS)
+		mat.setEmissive(convColor(c3));
+
+	return matp;
+}
+
+void assimpMaterials(CMeshUtilsContext &context)
+{
+	const aiScene *scene = context.InternalScene;
+	for (unsigned int mi = 0; mi < scene->mNumMaterials; ++mi)
+	{
+		const aiMaterial *am = scene->mMaterials[mi];
+
+		for (unsigned int pi = 0; pi < am->mNumProperties; ++pi) // DEBUG
+		{ // DEBUG
+			const aiMaterialProperty *amp = am->mProperties[pi];
+			printf("%s\n", amp->mKey.C_Str());
+		} // DEBUG
+
+		aiString amname;
+		if (am->Get(AI_MATKEY_NAME, amname) != aiReturn_SUCCESS)
+		{
+			tlerror(context.ToolLogger, context.Settings.SourceFilePath.c_str(),
+				"Material has no name");
+			continue;
+		}
+		
+		if (context.SceneMeta.Materials.find(amname.C_Str())
+			== context.SceneMeta.Materials.end())
+		{
+			context.SceneMeta.Materials[amname.C_Str()] = assimpMaterial(context, am);
+		}
+	}
+}
+
+/* end of file */

code/nel/tools/3d/mesh_utils/assimp_material.h

@@ -0,0 +1,24 @@
+// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
+// Copyright (C) 2015  Winch Gate Property Limited
+// Author: Jan Boon <jan.boon@kaetemi.be>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <nel/misc/types_nl.h>
+
+struct CMeshUtilsContext;
+
+void assimpMaterials(CMeshUtilsContext &context);
+
+/* end of file */

code/nel/tools/3d/mesh_utils/mesh_utils.cpp

@@ -32,6 +32,8 @@
 #define NL_NODE_INTERNAL_TYPE aiNode
 #define NL_SCENE_INTERNAL_TYPE aiScene
 #include "scene_context.h"
+
+#include "assimp_material.h"
 #include "assimp_shape.h"
 
 CMeshUtilsSettings::CMeshUtilsSettings()
@@ -269,9 +271,10 @@ int exportScene(const CMeshUtilsSettings &settings)
 	// ]
 	// -- SKEL FLAG --
 
-	// TODO
+	// First import materials
-	// First import materials...
+	assimpMaterials(context);
 
+	// Import shapes
 	importShapes(context, context.InternalScene->mRootNode);
 
 	return EXIT_SUCCESS;

code/nel/tools/3d/mesh_utils/scene_context.h

@@ -27,6 +27,8 @@
 #include <nel/misc/smart_ptr.h>
 #include <nel/misc/matrix.h>
 
+#include <nel/3d/shape.h>
+
 #ifndef NL_NODE_INTERNAL_TYPE
 #define NL_NODE_INTERNAL_TYPE void
 #endif
@@ -36,6 +38,7 @@
 
 namespace NL3D {
 	class IShape;
+	class CMaterial;
 }
 
 struct CNodeContext
@@ -51,7 +54,7 @@ struct CNodeContext
 	bool IsBone;
 
 	// NLMISC::CMatrix Transform; // TODO
-	NLMISC::CRefPtr<NL3D::IShape> Shape;
+	NLMISC::CSmartPtr<NL3D::IShape> Shape;
 };
 
 typedef std::map<NLMISC::CSString, CNodeContext> TNodeContextMap;

code/nel/tools/3d/mesh_utils/scene_meta.cpp

@@ -22,6 +22,8 @@
 #include <nel/misc/stream.h>
 #include <nel/misc/file.h>
 
+#include <nel/3d/material.h>
+
 using namespace std;
 using namespace NLMISC;
 
@@ -47,7 +49,7 @@ void CNodeMeta::serial(NLMISC::IStream &s)
 }
 
 CSceneMeta::CSceneMeta() :
-	DefaultInstanceGroup(false),
+	ExportDefaultIG(false),
 	SkeletonMode(TSkelRoot)
 {
 	
@@ -77,10 +79,11 @@ void CSceneMeta::serial(NLMISC::IStream &s)
 {
 	uint version = s.serialVersion(1);
 
-	s.serial(DefaultInstanceGroup);
+	s.serial(ExportDefaultIG);
 	s.serial((uint32 &)SkeletonMode);
 
 	s.serialCont(Nodes);
+	s.serialPtrCont(Materials);
 }
 
 /* end of file */

code/nel/tools/3d/mesh_utils/scene_meta.h

@@ -20,11 +20,18 @@
 #include <nel/misc/types_nl.h>
 
 #include <nel/misc/sstring.h>
+#include <nel/misc/smart_ptr.h>
+
+#include <nel/3d/material.h>
 
 namespace NLMISC {
 	class IStream;
 }
 
+namespace NL3D {
+	class CMaterial;
+}
+
 enum TMesh
 {
 	TMeshDisabled = 0,
@@ -56,6 +63,7 @@ struct CNodeMeta
 	std::string InstanceGroupName;
 
 	bool AutoAnim;
+	// std::vector<NLMISC::CSString> Materials; // In case there's an issue with nameless materials in some format... Map to material entirely in the meta editor.
 
 	void serial(NLMISC::IStream &s);
 };
@@ -67,13 +75,16 @@ enum TSkel
 	TSkelFull = 2, // Include all connected child nodes in the skeleton
 };
 
+typedef std::map<NLMISC::CSString, NLMISC::CSmartPtr<NL3D::CMaterial> > TMaterialMap;
 struct CSceneMeta
 {
 	CSceneMeta();
 
-	bool DefaultInstanceGroup; // Export a default instance group from nodes the scene that do not have an instance group set
+	bool ExportDefaultIG; // Export a default instance group from nodes the scene that do not have an instance group set
 	TSkel SkeletonMode;
+
 	std::map<NLMISC::CSString, CNodeMeta> Nodes;
+	TMaterialMap Materials;
 
 	const std::string &metaFilePath() const { return m_MetaFilePath; }