public static Shader bakeShader(ShaderLayer shaderLayer, TextureRecipe recipe)
{
TextAsset shaderBaseText = (TextAsset)Resources.Load("template.shader");
if (shaderBaseText == null)
{
Debug.LogError("Failed to template shader");
return(null);
}
string shaderName = ShaderLayer.getShaderName(recipe, shaderLayer);
string shaderPath = ShaderLayer.getShaderPath(recipe, shaderLayer);
string shaderText = shaderBaseText.text;
List <string> lines = shaderText.Split('\n').ToList <string>();
int numLines = lines.Count;
for (int i = 0; i < numLines; i++)
{
string line = lines[i];
if (line.Contains("$$"))
{
if (line.Contains("$$ASSETNAME"))
{
line = line.Replace("$$ASSETNAME", shaderPath);
lines[i] = line;
}
else if (line.Contains("$$STARTFUNCS"))
{
var funcs = getFunctions(shaderLayer);
lines.InsertRange(i + 1, funcs);
i += funcs.Count;
numLines = lines.Count;
}
else if (line.Contains("$$STARTPROPS"))
{
var props = getProperties(shaderLayer);
lines.InsertRange(i + 1, props);
i += props.Count;
numLines = lines.Count;
}
else if (line.Contains("$$STARTINPUTS"))
{
var inputs = getInputs(shaderLayer);
lines.InsertRange(i + 1, inputs);
i += inputs.Count;
numLines = lines.Count;
}
else if (line.Contains("$$STARTSHADER"))
{
lines.Insert(i + 1, getCalls(shaderLayer));
numLines = lines.Count;
i++;
}
}
}
string baseAssetPath = "Assets/TextureRecipes/Resources/";
string shaderAssetPath = baseAssetPath + shaderName + ".shader";
//Can't do this because we want to overwrite an existing asset! shaderPath = AssetDatabase.GenerateUniqueAssetPath(shaderPath);
//Generating the text for the shader is a very fast operation. Rather than trying to figure out which changes
//would have altered the shader, we simply generate the shader as a byproduct of every change, and then see
//if it has changed since the last time we output it. The really expensive part is outputting the shader and
//triggering the Unity shader post-process and compilation steps (we're talking >1.5s vs 3ms).
string[] existingLines = null;
existingShaderLines.TryGetValue(shaderPath, out existingLines);
string[] newLines = lines.ToArray();
if (existingLines != null)
{
if (existingLines.Length == newLines.Length)
{
bool allMatch = true;
for (int i = 0; allMatch && (i < newLines.Length); i++)
{
if (existingLines[i] != newLines[i])
{
allMatch = false;
}
}
if (allMatch)
{
return(Shader.Find(shaderPath));
}
}
}
//File.WriteAllLines(shaderAssetPath, newLines);
using (StreamWriter writer = new StreamWriter(shaderAssetPath, false))
{
writer.NewLine = "\n";
foreach (string str in newLines)
{
writer.WriteLine(str);
}
}
existingShaderLines[shaderPath] = newLines;
AssetDatabase.Refresh();
return(Shader.Find(shaderPath));
}
public void renderSetup(Texture2D textureTarget = null)
{
renderMaterials.Clear();
textObjects.Clear();
renderOffsetX += 10.0f;
renderTextureTarget = textureTarget;
if (textureTarget != null)
{
renderTexture = new RenderTexture(textureTarget.width, textureTarget.height, 0);
}
else
{
renderTexture = new RenderTexture(recipe.TextureWidth, recipe.TextureHeight, 0);
}
GameObject renderCameraObject = new GameObject();
renderCamera = renderCameraObject.AddComponent <Camera>();
renderCamera.backgroundColor = Color.black;
renderCamera.orthographic = true;
renderCamera.orthographicSize = 5;
renderCamera.transform.localPosition = new Vector3(renderOffsetX, 0, 0);
renderCamera.transform.localRotation = Quaternion.Euler(new Vector3(90.0f, 0.0f, 0.0f));
renderCamera.cullingMask = 1 << recipe.RenderLayer;
renderCameraObject.layer = recipe.RenderLayer;
renderObjectList.Add(renderCameraObject);
foreach (var layer in recipe.layerList)
{
//TODO: layer abstraction
if (layer is ShaderLayer)
{
ShaderLayer shaderLayer = (ShaderLayer)layer;
GameObject renderPlane = GameObject.CreatePrimitive(PrimitiveType.Plane);
renderPlane.transform.localPosition = new Vector3(renderOffsetX, -10, 0);
renderPlane.transform.localRotation = Quaternion.Euler(new Vector3(0, 180, 0));
renderPlane.layer = recipe.RenderLayer;
renderObjectList.Add(renderPlane);
string shaderPath = ShaderLayer.getShaderPath(recipe, shaderLayer);
Shader shaderAsset = Shader.Find(shaderPath);
if (null == shaderAsset)
{
Debug.LogError("Failed to get shader at " + shaderPath);
continue;
}
Material layerMaterial = new Material(shaderAsset);
renderMaterials[shaderLayer] = layerMaterial;
renderPlane.GetComponent <MeshRenderer>().material = layerMaterial;
}
else if (layer is TextLayer)
{
var textLayer = (TextLayer)layer;
GameObject txtObject = new GameObject();
txtObject.transform.localPosition = new Vector3(textLayer.position.x + renderOffsetX, -5, textLayer.position.y);
txtObject.transform.localRotation = Quaternion.Euler(new Vector3(90, 0, 0));
txtObject.layer = recipe.RenderLayer;
renderObjectList.Add(txtObject);
var textMesh = txtObject.AddComponent <TextMesh>();
textMesh.font = textLayer.font;
textMesh.text = textLayer.text;
textMesh.color = textLayer.textColor;
textMesh.fontSize = textLayer.fontSize;
textMesh.characterSize = textLayer.characterSize;
textMesh.anchor = textLayer.anchor;
textObjects[textLayer] = txtObject;
//If the material isn't set the text won't appear
MeshRenderer rend = txtObject.GetComponentInChildren <MeshRenderer>();
rend.material = textMesh.font.material;
}
}
}