public static SSTextureMaterial FromBlenderMtl(string basePath, SSWavefrontMTLInfo mtl)
{
SSTexture diffuse = null, specular = null, ambient = null, bumpMap = null;
if (mtl.diffuseTextureResourceName != null && mtl.diffuseTextureResourceName.Length > 0)
{
string path = Path.Combine(basePath, mtl.diffuseTextureResourceName);
diffuse = SSAssetManager.GetInstance <SSTextureWithAlpha> (path);
}
if (mtl.specularTextureResourceName != null && mtl.specularTextureResourceName.Length > 0)
{
string path = Path.Combine(basePath, mtl.specularTextureResourceName);
specular = SSAssetManager.GetInstance <SSTextureWithAlpha> (path);
}
if (mtl.ambientTextureResourceName != null && mtl.ambientTextureResourceName.Length > 0)
{
string path = Path.Combine(basePath, mtl.ambientTextureResourceName);
ambient = SSAssetManager.GetInstance <SSTextureWithAlpha> (path);
}
if (mtl.bumpTextureResourceName != null && mtl.bumpTextureResourceName.Length > 0)
{
string path = Path.Combine(basePath, mtl.bumpTextureResourceName);
bumpMap = SSAssetManager.GetInstance <SSTextureWithAlpha> (path);
}
return(new SSTextureMaterial(diffuse, specular, ambient, bumpMap));
}
public static SSTextureMaterial FromBlenderMtl(SSAssetManager.Context ctx, SSWavefrontMTLInfo mtl)
{
SSTexture diffuse = null, specular = null, ambient = null, bumpMap = null;
if (mtl.diffuseTextureResourceName != null && mtl.diffuseTextureResourceName.Length > 0) {
diffuse = SSAssetManager.GetInstance<SSTextureWithAlpha> (ctx, mtl.diffuseTextureResourceName);
}
if (mtl.specularTextureResourceName != null && mtl.specularTextureResourceName.Length > 0) {
specular = SSAssetManager.GetInstance<SSTextureWithAlpha> (ctx, mtl.specularTextureResourceName);
}
if (mtl.ambientTextureResourceName != null && mtl.ambientTextureResourceName.Length > 0) {
ambient = SSAssetManager.GetInstance<SSTextureWithAlpha> (ctx, mtl.ambientTextureResourceName);
}
if (mtl.bumpTextureResourceName != null && mtl.bumpTextureResourceName.Length > 0) {
bumpMap = SSAssetManager.GetInstance<SSTextureWithAlpha> (ctx, mtl.bumpTextureResourceName);
}
return new SSTextureMaterial (diffuse, specular, ambient, bumpMap);
}
public static SSColorMaterial fromMtl(SSWavefrontMTLInfo info)
{
Color4 diffuse = Color4Helper.Zero;
if (info.hasDiffuse)
{
diffuse = Color4Helper.fromVector4(info.vDiffuse);
}
Color4 ambient = Color4Helper.Zero;
if (info.hasAmbient)
{
ambient = Color4Helper.fromVector4(info.vAmbient);
}
Color4 specular = Color4Helper.Zero;
if (info.hasSpecular)
{
specular = Color4Helper.fromVector4(info.vSpecular);
}
return(new SSColorMaterial(diffuse, ambient, specular,
Color4Helper.Zero));
}
public static SSTextureMaterial FromBlenderMtl(SSAssetManager.Context ctx, SSWavefrontMTLInfo mtl)
{
SSTexture diffuse = null, specular = null, ambient = null, bumpMap = null;
if (mtl.diffuseTextureResourceName != null && mtl.diffuseTextureResourceName.Length > 0)
{
diffuse = SSAssetManager.GetInstance <SSTextureWithAlpha> (ctx, mtl.diffuseTextureResourceName);
}
if (mtl.specularTextureResourceName != null && mtl.specularTextureResourceName.Length > 0)
{
specular = SSAssetManager.GetInstance <SSTextureWithAlpha> (ctx, mtl.specularTextureResourceName);
}
if (mtl.ambientTextureResourceName != null && mtl.ambientTextureResourceName.Length > 0)
{
ambient = SSAssetManager.GetInstance <SSTextureWithAlpha> (ctx, mtl.ambientTextureResourceName);
}
if (mtl.bumpTextureResourceName != null && mtl.bumpTextureResourceName.Length > 0)
{
bumpMap = SSAssetManager.GetInstance <SSTextureWithAlpha> (ctx, mtl.bumpTextureResourceName);
}
return(new SSTextureMaterial(diffuse, specular, ambient, bumpMap));
}
public float vSpecularWeight; // Ns
#endregion Fields
#region Methods
public static SSWavefrontMTLInfo[] ReadMTLs(SSAssetManager.Context ctx, string filename)
{
var materials = new List<SSWavefrontMTLInfo> ();
SSWavefrontMTLInfo parseMaterial = null;
StreamReader sr = ctx.OpenText(filename);
//Read the first line of text
string line = sr.ReadLine();
//Continue to read until you reach end of file
while (line != null) {
string[] tokens = line.Split(" ".ToArray(), 2);
if (tokens.Length < 2) {
goto next_line;
}
string firstToken = tokens[0];
string lineContent = tokens[1];
switch (firstToken) {
case "#":
// Nothing to read, these are comments.
break;
case "newmtl": // create new named material
parseMaterial = new SSWavefrontMTLInfo();
materials.Add(parseMaterial);
parseMaterial.name = lineContent;
break;
case "Ka": // ambient color
parseMaterial.vAmbient = WavefrontParser.readVector4(lineContent, null);
parseMaterial.hasAmbient = true;
break;
case "Kd": // diffuse color
parseMaterial.vDiffuse = WavefrontParser.readVector4(lineContent, null);
parseMaterial.hasDiffuse = true;
break;
case "Ks": // specular color (weighted by Ns)
parseMaterial.vSpecular = WavefrontParser.readVector4(lineContent,null);
parseMaterial.hasSpecular = true;
break;
case "Ns": // specular color weight
parseMaterial.vSpecularWeight = WavefrontParser.parseFloat(lineContent);
break;
case "d":
case "Tr": // transparency / dissolve (i.e. alpha)
parseMaterial.fTransparency = WavefrontParser.parseFloat(lineContent);
parseMaterial.hasTransparency = true;
break;
case "illum": // illumination mode
parseMaterial.hasIlluminationMode = true;
parseMaterial.illuminationMode = (SSWavefrontIlluminationMode) int.Parse(lineContent);
break;
case "map_Kd": // diffuse color map
parseMaterial.diffuseTextureResourceName = lineContent;
break;
case "map_Ka": // ambient color map
parseMaterial.ambientTextureResourceName = lineContent;
break;
case "map_Ks": // specular color map
parseMaterial.specularTextureResourceName = lineContent;
break;
case "bump":
case "map_Bump":
case "map_bump": // bump map
// bump <filename> [-bm <float intensity>]
// bump -bm <float intensity> <filename>
string[] parts = lineContent.Split(' ');
if (parts.Length == 1) {
parseMaterial.bumpTextureResourceName = parts[0];
} else {
if (parts.Length == 3) {
if (parts[1].Equals("-bm")) {
parseMaterial.bumpTextureResourceName = parts[0];
parseMaterial.bumpIntensity = WavefrontParser.parseFloat(parts[2]);
} else if (parts[0].Equals("-bm")) {
parseMaterial.bumpTextureResourceName = parts[3];
parseMaterial.bumpIntensity = WavefrontParser.parseFloat(parts[1]);
}
}
}
break;
}
next_line:
//Read the next line
line = sr.ReadLine();
}
//close the file
sr.Close();
return materials.ToArray();
}
public static SSWavefrontMTLInfo[] ReadMTLs(SSAssetManager.Context ctx, string filename)
{
var materials = new List <SSWavefrontMTLInfo> ();
SSWavefrontMTLInfo parseMaterial = null;
StreamReader sr = ctx.OpenText(filename);
//Read the first line of text
string line = sr.ReadLine();
//Continue to read until you reach end of file
while (line != null)
{
string[] tokens = line.Split(" ".ToArray(), 2);
if (tokens.Length < 2)
{
goto next_line;
}
string firstToken = tokens[0];
string lineContent = tokens[1];
switch (firstToken)
{
case "#":
// Nothing to read, these are comments.
break;
case "newmtl": // create new named material
parseMaterial = new SSWavefrontMTLInfo();
materials.Add(parseMaterial);
parseMaterial.name = lineContent;
break;
case "Ka": // ambient color
parseMaterial.vAmbient = WavefrontParser.readVector4(lineContent, null);
parseMaterial.hasAmbient = true;
break;
case "Kd": // diffuse color
parseMaterial.vDiffuse = WavefrontParser.readVector4(lineContent, null);
parseMaterial.hasDiffuse = true;
break;
case "Ks": // specular color (weighted by Ns)
parseMaterial.vSpecular = WavefrontParser.readVector4(lineContent, null);
parseMaterial.hasSpecular = true;
break;
case "Ns": // specular color weight
parseMaterial.vSpecularWeight = WavefrontParser.parseFloat(lineContent);
break;
case "d":
case "Tr": // transparency / dissolve (i.e. alpha)
parseMaterial.fTransparency = WavefrontParser.parseFloat(lineContent);
parseMaterial.hasTransparency = true;
break;
case "illum": // illumination mode
parseMaterial.hasIlluminationMode = true;
parseMaterial.illuminationMode = (SSWavefrontIlluminationMode)int.Parse(lineContent);
break;
case "map_Kd": // diffuse color map
parseMaterial.diffuseTextureResourceName = lineContent;
break;
case "map_Ka": // ambient color map
parseMaterial.ambientTextureResourceName = lineContent;
break;
case "map_Ks": // specular color map
parseMaterial.specularTextureResourceName = lineContent;
break;
case "bump":
case "map_Bump":
case "map_bump": // bump map
// bump <filename> [-bm <float intensity>]
// bump -bm <float intensity> <filename>
string[] parts = lineContent.Split(' ');
if (parts.Length == 1)
{
parseMaterial.bumpTextureResourceName = parts[0];
}
else
{
if (parts.Length == 3)
{
if (parts[1].Equals("-bm"))
{
parseMaterial.bumpTextureResourceName = parts[0];
parseMaterial.bumpIntensity = WavefrontParser.parseFloat(parts[2]);
}
else if (parts[0].Equals("-bm"))
{
parseMaterial.bumpTextureResourceName = parts[3];
parseMaterial.bumpIntensity = WavefrontParser.parseFloat(parts[1]);
}
}
}
break;
}
next_line:
//Read the next line
line = sr.ReadLine();
}
//close the file
sr.Close();
return(materials.ToArray());
}
public static SSTextureMaterial FromMaterialString(SSAssetManager.Context ctx, string materialString)
{
string existingFilename = null;
SSAssetManager.Context existingCtx = null;
if (ctx != null && SSAssetManager.ResourceExists(ctx, materialString))
{
existingCtx = ctx;
existingFilename = materialString;
}
else if (SSAssetManager.ResourceExists(SSAssetManager.Context.Root, materialString))
{
existingCtx = SSAssetManager.Context.Root;
existingFilename = materialString;
}
else
{
SSAssetManager.Context[] ctxs = { ctx, SSAssetManager.Context.Root };
var extensions = new List <string> (SSTexture.commonImageExtensions);
extensions.Insert(0, ".mtl"); // check mtl first
foreach (var context in ctxs)
{
// for each context (current vs root directory)...
foreach (string extension in extensions)
{
// for each extension of interest...
string filename = materialString + extension;
if (SSAssetManager.ResourceExists(context, filename))
{
existingCtx = context;
existingFilename = filename;
break;
}
}
}
}
if (existingFilename != null)
{
// try loading a material
try {
SSWavefrontMTLInfo[] mtls = SSWavefrontMTLInfo.ReadMTLs(existingCtx, existingFilename);
if (mtls.Length < 0)
{
throw new Exception("No MTLs available in a file");
}
return(SSTextureMaterial.FromBlenderMtl(existingCtx, mtls[0]));
} catch {
// try loading an image
try {
SSTexture diffTex = SSAssetManager.GetInstance <SSTextureWithAlpha> (existingCtx, existingFilename);
return(new SSTextureMaterial(diffTex));
} catch {
}
}
}
string errMsg = "could not load texture material: " + materialString;
System.Console.WriteLine(errMsg);
throw new Exception(errMsg);
}
public static SSTextureMaterial FromMaterialString(string basePath, string materialString)
{
string existingPath = null;
string combined = Path.Combine(basePath, materialString);
if (SSAssetManager.ResourceExists(combined))
{
existingPath = combined;
}
else if (SSAssetManager.ResourceExists(materialString))
{
existingPath = materialString;
}
else
{
string[] basePaths = { "", basePath }; // search in root as well as supplied base path
var extensions = new List <string> (SSTexture.commonImageExtensions);
extensions.Insert(0, ".mtl"); // check mtl first
foreach (var bp in basePaths)
{
// for each context (current vs root directory)...
foreach (string extension in extensions)
{
// for each extension of interest...
string fullPath = Path.Combine(bp, materialString + extension);
if (SSAssetManager.ResourceExists(fullPath))
{
existingPath = fullPath;
break;
}
}
}
}
if (existingPath != null)
{
// try loading a material
try {
SSWavefrontMTLInfo[] mtls = SSWavefrontMTLInfo.ReadMTLs(existingPath);
if (mtls.Length <= 0)
{
throw new Exception("No MTLs available in a file");
}
string baseDir = Path.GetDirectoryName(existingPath);
return(SSTextureMaterial.FromBlenderMtl(baseDir, mtls[0]));
} catch {
// try loading an image
try {
SSTexture diffTex = SSAssetManager.GetInstance <SSTextureWithAlpha> (existingPath);
return(new SSTextureMaterial(diffTex));
} catch {
}
}
}
string errMsg = "could not load texture material: " + materialString;
System.Console.WriteLine(errMsg);
throw new Exception(errMsg);
}
