Shader BakeShader(Shader orig)
{
string path = AssetDatabase.GetAssetPath(orig);
System.IO.StreamReader reader = new System.IO.StreamReader(path);
string shaderSource = reader.ReadToEnd();
reader.Close();
string outfilename = AssetDatabase.GenerateUniqueAssetPath(generatedDir.stringValue + "/" + orig.name.Replace("/", "-") + ".shader");
int shaderNamePos = findAndConsumeComments("Shader", 0, shaderSource);
int firstQuote = findAndConsumeComments("\"", shaderNamePos, shaderSource);
int secondQuote = shaderSource.IndexOf("\"", firstQuote + 1);
int brace = findAndConsumeComments("{", secondQuote + 1, shaderSource);
BoxClipOrigin boxClipObj = (BoxClipOrigin)target;
// (generatedDir.stringValue.GetHashCode() & 0x7fffffff)
string outSource = shaderSource.Substring(0, firstQuote) + "\"" + "Hidden/BoxClipBaked/" + AssetDatabase.AssetPathToGUID(generatedDir.stringValue) + "Inst/" + orig.name.Substring(8) + "\" {\n";
outSource += "CGINCLUDE\n" +
" #define BOXCLIP_CONFIGURED 1\n" +
" #define BOXCLIP_SCALE " + scale.floatValue + "\n" +
" #define BOXCLIP_ALLOW_IN_FRONT " + allowInFront.floatValue + "\n" +
" #define BOXCLIP_ALLOW_IN_FRONT " + allowInFront.floatValue + "\n\n";
outSource += generateBoxQuadsMacro(boxClipObj, "ClipShow", BoxClipOrigin.BoxClipArray.ClipShow);
outSource += generateBoxQuadsMacro(boxClipObj, "ClipHide", BoxClipOrigin.BoxClipArray.ClipHide);
outSource += generateBoxQuadsMacro(boxClipObj, "ShowVolume", BoxClipOrigin.BoxClipArray.ShowVolume);
outSource += generateBoxQuadsMacro(boxClipObj, "HideVolume", BoxClipOrigin.BoxClipArray.HideVolume);
outSource += generateBoxQuadsMacro(boxClipObj, "ShowCameraWithin", BoxClipOrigin.BoxClipArray.ShowCameraWithin);
outSource += generateBoxQuadsMacro(boxClipObj, "HideCameraWithin", BoxClipOrigin.BoxClipArray.HideCameraWithin);
outSource += generateBoxQuadsMacro(boxClipObj, "ZCompress", BoxClipOrigin.BoxClipArray.ZCompress);
outSource += "\nENDCG\n";
outSource += shaderSource.Substring(brace + 1);
System.IO.StreamWriter writer = new System.IO.StreamWriter(outfilename, true);
writer.Write(outSource);
writer.Close();
string cgincpath = System.IO.Path.GetDirectoryName(path) + "/BoxClipTemplate.cginc";
string targetcgincpath = generatedDir.stringValue + "/BoxClipTemplate.cginc";
reader = new System.IO.StreamReader(cgincpath);
string cgincSource = reader.ReadToEnd();
reader.Close();
writer = new System.IO.StreamWriter(targetcgincpath);
writer.Write(cgincSource);
writer.Close();
cgincpath = System.IO.Path.GetDirectoryName(path) + "/BoxClipStandardShadow.cginc";
targetcgincpath = generatedDir.stringValue + "/BoxClipStandardShadow.cginc";
reader = new System.IO.StreamReader(cgincpath);
cgincSource = reader.ReadToEnd();
reader.Close();
writer = new System.IO.StreamWriter(targetcgincpath);
writer.Write(cgincSource);
writer.Close();
AssetDatabase.ImportAsset(outfilename);
return(AssetDatabase.LoadAssetAtPath <Shader>(outfilename));
}
string generateBoxQuadsMacro(BoxClipOrigin boxClipObj, string arrName, BoxClipOrigin.BoxClipArray arrType)
{
int count;
Vector4[] boxQuads = boxClipObj.createBoxQuads((Transform)origin.objectReferenceValue, arrType, out count);
string outSource = " #define boxQuad_" + arrName + "_Count " + count + "\n" +
" #define DECLARE_BOXCLIP_" + arrName + "_ARRAY static internalBoxQuad boxQuad_" + arrName + "_Quads[" + (count == 0 ? 1 : count) + "] = {\\\n";
for (int i = 0; i < count || i == 0; i++)
{
outSource += " {" +
printFloat3(boxQuads[i * 4]) +
"," + printFloat4(boxQuads[i * 4 + 1]) +
"," + printFloat4(boxQuads[i * 4 + 2]) +
"," + printFloat4(boxQuads[i * 4 + 3]) +
"}" + (i == count - 1 ? "" : ",") + "\\\n";
}
outSource += "};\n\n";
return(outSource);
}
