private BabylonMaterial DumpShaderMaterial(Material material)
{
if (materialsDictionary.ContainsKey(material.name))
{
return materialsDictionary[material.name];
}
var babylonShaderMaterial = new BabylonShaderMaterial
{
name = material.name,
id = Guid.NewGuid().ToString(),
};
ExporterWindow.ReportProgress(1, "Exporting glsl material: " + material.name);
List<string> tnames = material.GetTextureNames();
foreach (string tname in tnames)
{
BabylonTexture tdata = DumpTextureFromMaterial(material, tname);
if (tdata != null)
{
babylonShaderMaterial.textures.Add(tname, tdata);
}
}
List<string> fnames = material.GetFloatNames();
foreach (string fname in fnames)
{
float fdata = material.GetFloat(fname);
babylonShaderMaterial.floats.Add(fname, fdata);
}
List<string> rnames = material.GetRangeNames();
foreach (string rname in rnames)
{
float rdata = material.GetFloat(rname);
babylonShaderMaterial.floats.Add(rname, rdata);
}
List<string> cnames = material.GetColorNames();
foreach (string cname in cnames)
{
Color cdata = material.GetColor(cname);
babylonShaderMaterial.vectors4.Add(cname, cdata.ToFloat());
}
List<string> vnames = material.GetVectorNames();
foreach (string vname in vnames)
{
Vector4 vdata = material.GetVector(vname);
babylonShaderMaterial.vectors4.Add(vname, vdata.ToFloat());
}
Shader shader = material.shader;
string filename = AssetDatabase.GetAssetPath(shader);
string program = Tools.LoadTextAsset(filename);
string basename = shader.name.Replace("BabylonJS/", "").Replace("/", "_").Replace(" ", "");
string outpath = (!String.IsNullOrEmpty(exportationOptions.DefaultShaderFolder)) ? exportationOptions.DefaultShaderFolder : OutputPath;
var shaderpath = new Dictionary<string, string>();
List<string> attributeList = new List<string>();
List<string> uniformList = new List<string>();
List<string> samplerList = new List<string>();
List<string> defineList = new List<string>();
string babylonOptions = GetShaderProgramSection(basename, program, BabylonProgramSection.Babylon);
string[] babylonLines = babylonOptions.Split('\n');
foreach (string babylonLine in babylonLines)
{
if (babylonLine.IndexOf("attributes", StringComparison.OrdinalIgnoreCase) >= 0)
{
string[] attributes = babylonLine.Split(':');
if (attributes != null && attributes.Length > 1)
{
string abuffer = attributes[1].Replace("[", "").Replace("]", "");
if (!String.IsNullOrEmpty(abuffer))
{
abuffer = abuffer.Trim();
string[] adata = abuffer.Split(',');
if (adata != null && adata.Length > 0)
{
foreach (string aoption in adata)
{
string aoption_buffer = aoption.Trim().Replace("\"", "").Trim();
if (!String.IsNullOrEmpty(aoption_buffer))
{
attributeList.Add(aoption_buffer);
}
}
}
}
}
}
else if (babylonLine.IndexOf("uniforms", StringComparison.OrdinalIgnoreCase) >= 0)
{
string[] uniforms = babylonLine.Split(':');
if (uniforms != null && uniforms.Length > 1)
{
string ubuffer = uniforms[1].Replace("[", "").Replace("]", "");
if (!String.IsNullOrEmpty(ubuffer))
{
ubuffer = ubuffer.Trim();
string[] udata = ubuffer.Split(',');
if (udata != null && udata.Length > 0)
{
foreach (string uoption in udata)
{
string uoption_buffer = uoption.Trim().Replace("\"", "").Trim();
if (!String.IsNullOrEmpty(uoption_buffer))
{
uniformList.Add(uoption_buffer);
}
}
}
}
}
}
else if (babylonLine.IndexOf("samplers", StringComparison.OrdinalIgnoreCase) >= 0)
{
string[] samplers = babylonLine.Split(':');
if (samplers != null && samplers.Length > 1)
{
string sbuffer = samplers[1].Replace("[", "").Replace("]", "");
if (!String.IsNullOrEmpty(sbuffer))
{
sbuffer = sbuffer.Trim();
string[] sdata = sbuffer.Split(',');
if (sdata != null && sdata.Length > 0)
{
foreach (string soption in sdata)
{
string soption_buffer = soption.Trim().Replace("\"", "").Trim();
if (!String.IsNullOrEmpty(soption_buffer))
{
samplerList.Add(soption_buffer);
}
}
}
}
}
}
else if (babylonLine.IndexOf("defines", StringComparison.OrdinalIgnoreCase) >= 0)
{
string[] defines = babylonLine.Split(':');
if (defines != null && defines.Length > 1)
{
string dbuffer = defines[1].Replace("[", "").Replace("]", "");
if (!String.IsNullOrEmpty(dbuffer))
{
dbuffer = dbuffer.Trim();
string[] ddata = dbuffer.Split(',');
if (ddata != null && ddata.Length > 0)
{
foreach (string doption in ddata)
{
string doption_buffer = doption.Trim().Replace("\"", "").Trim();
if (!String.IsNullOrEmpty(doption_buffer))
{
defineList.Add(doption_buffer);
}
}
}
}
}
}
}
babylonShaderMaterial.options = new BabylonShaderOptions();
babylonShaderMaterial.options.attributes = attributeList.ToArray();
babylonShaderMaterial.options.uniforms = uniformList.ToArray();
babylonShaderMaterial.options.samplers = samplerList.ToArray();
babylonShaderMaterial.options.defines = defineList.ToArray();
string vertexProgram = GetShaderProgramSection(basename, program, BabylonProgramSection.Vertex);
var vertextFile = Path.Combine(outpath, basename + ".vertex.fx");
if (exportationOptions.EmbeddedShaders)
{
shaderpath.Add("vertexElement", ("base64:" + Tools.FormatBase64(vertexProgram)));
}
else
{
File.WriteAllText(vertextFile, vertexProgram);
}
string fragmentProgram = GetShaderProgramSection(basename, program, BabylonProgramSection.Fragment);
var fragmentFile = Path.Combine(outpath, basename + ".fragment.fx");
if (exportationOptions.EmbeddedShaders)
{
shaderpath.Add("fragmentElement", ("base64:" + Tools.FormatBase64(fragmentProgram)));
}
else
{
File.WriteAllText(fragmentFile, fragmentProgram);
}
babylonShaderMaterial.shaderPath = (exportationOptions.EmbeddedShaders) ? (object)shaderpath : (object)basename;
materialsDictionary.Add(babylonShaderMaterial.name, babylonShaderMaterial);
return babylonShaderMaterial;
}
private BabylonMaterial DumpStandardMaterial(Material material, int lightmapIndex = -1, Vector4 lightmapScaleOffset = default(Vector4), int lightmapCoordIndex = -1)
{
var materialNotSupported = false;
if (!materialsDictionary.ContainsKey(material.name))
{
var bMat = new BabylonStandardMaterial
{
name = material.name,
id = Guid.NewGuid().ToString(),
diffuse = new float[4],
specular = new float[4]
};
ExporterWindow.ReportProgress(1, "Exporting standard material: " + material.name);
if (exportationOptions.DefaultLightmapMode == (int)BabylonLightmapMode.FullLightBaking)
{
bMat.disableLighting = true;
bMat.useEmissiveAsIllumination = true;
}
// Default diffuse
bMat.diffuse[0] = 1.0f;
bMat.diffuse[1] = 1.0f;
bMat.diffuse[2] = 1.0f;
bMat.diffuse[3] = 1.0f;
// Default specular
bMat.specular[0] = 0.0f;
bMat.specular[1] = 0.0f;
bMat.specular[2] = 0.0f;
bMat.specular[3] = 1.0f;
if (material.mainTexture && material.mainTexture.GetType().FullName == "UnityEngine.ProceduralTexture")
{
materialNotSupported = true;
Debug.LogWarning("ProceduralTexture: " + material.mainTexture.name + " not supported by Babylon.js");
}
if (material.HasProperty("_Shininess"))
{
var specShininess = material.GetFloat("_Shininess");
bMat.specularPower = specShininess * 128;
}
if (material.HasProperty("_Color"))
{
bMat.diffuse = material.color.ToFloat();
}
if (material.HasProperty("_SpecColor"))
{
var specColor = material.GetColor("_SpecColor");
bMat.specular = specColor.ToFloat();
}
if (material.HasProperty("_Emission"))
{
if (material.GetColorNames().IndexOf("_Emission") >= 0)
{
var emissiveColor = material.GetColor("_Emission");
bMat.emissive = emissiveColor.ToFloat();
}
else if (material.GetFloatNames().IndexOf("_Emission") >= 0)
{
// TODO: Convert Lightmapper Emission Color
UnityEngine.Debug.LogWarning("Material Emission Is Float Not Color: " + material.name);
}
}
if (material.mainTexture && !materialNotSupported)
{
var mainTexture2D = material.mainTexture as Texture2D;
var mainTexturePath = AssetDatabase.GetAssetPath(mainTexture2D);
var alphaCuttOff = 0f;
if (material.HasProperty("_Cutoff"))
{
alphaCuttOff = material.GetFloat("_Cutoff");
}
bMat.diffuseTexture = new BabylonTexture
{
uScale = material.mainTextureScale.x,
vScale = material.mainTextureScale.y,
uOffset = material.mainTextureOffset.x,
vOffset = material.mainTextureOffset.y
};
CopyTexture(mainTexturePath, mainTexture2D, bMat.diffuseTexture);
if ((mainTexture2D && mainTexture2D.alphaIsTransparency) || alphaCuttOff > 0)
{
bMat.diffuseTexture.hasAlpha = true;
bMat.backFaceCulling = false;
}
}
// Normal map
bMat.bumpTexture = DumpTextureFromMaterial(material, "_BumpMap");
if (bMat.bumpTexture != null && material.HasProperty("_BumpScale"))
{
bMat.bumpTexture.level = material.GetFloat("_BumpScale");
}
bMat.emissiveTexture = DumpTextureFromMaterial(material, "_Illum");
bMat.ambientTexture = DumpTextureFromMaterial(material, "_LightMap");
bMat.reflectionTexture = DumpTextureFromMaterial(material, "_Cube");
// If no ambient texture already (ambientTexture manually set for lightmaps on standard material)
bool hasLightmap = (exportationOptions.ExportLightmaps && lightmapIndex >= 0 && lightmapIndex != 65535 && LightmapSettings.lightmaps.Length > lightmapIndex);
if (hasLightmap && bMat.ambientTexture == null)
{
var lightmap = LightmapSettings.lightmaps[lightmapIndex].lightmapLight;
var texturePath = AssetDatabase.GetAssetPath(lightmap);
if (!String.IsNullOrEmpty(texturePath))
{
ExporterWindow.ReportProgress(1, "Dumping std material lightmap: " + lightmap.name);
bMat.lightmapTexture = DumpTexture(lightmap, isLightmap: true);
bMat.lightmapTexture.coordinatesIndex = (lightmapCoordIndex >= 0) ? lightmapCoordIndex : exportationOptions.DefaultCoordinatesIndex;
bMat.useLightmapAsShadowmap = true;
bMat.lightmapTexture.uScale = lightmapScaleOffset.x;
bMat.lightmapTexture.vScale = lightmapScaleOffset.y;
bMat.lightmapTexture.uOffset = lightmapScaleOffset.z;
bMat.lightmapTexture.vOffset = lightmapScaleOffset.w;
}
}
materialsDictionary.Add(bMat.name, bMat);
return bMat;
}
return materialsDictionary[material.name];
}
