void ConvertTexture()
{
normal = NormalMapTools.CreateNormalmap(diffuse, 3);
//normal = ImageFilter.GenerateNormal(diffuse);
//normal = NormalGeneration.Diff2Normal(diffuse);
//normal = Normalizer.CreateNormalMap(diffuse);
}
public static Texture2D LoadSpecular(string resref)
{
if (!loadedSpeculars.ContainsKey(resref))
{
loadedSpeculars[resref] = NormalMapTools.CreateSpecular(loadedTextures[resref], 1f, 0.5f);
}
return(loadedSpeculars[resref]);
}
public static Texture2D LoadNormal(string resref)
{
if (!loadedTextures.ContainsKey(resref))
{
return(new Texture2D(1, 1));
}
if (!loadedNormals.ContainsKey(resref))
//if (!loadedNormals.ContainsKey(resref + "_base"))
{
loadedNormals[resref] = NormalMapTools.CreateNormalmap(loadedTextures[resref], 1f);
//loadedNormals[resref] = NormalMapTools.CreateNormalmap(loadedTextures[resref + "_base"], 1f);
}
return(loadedNormals[resref]);
}
// example: Loads texture using WWW, then filters it, converts to normalmap, creates specular map and assigns them to material
IEnumerator LoadImageFromWebAndConvertToNormalMap()
{
Debug.Log("Loading texture: " + url);
WWW www = new WWW(url);
yield return(www);
Debug.Log("Finished loading");
if (!String.IsNullOrEmpty(www.error))
{
Debug.Log("Texture loading error:" + www.error);
}
// assign as maintexture
GetComponent <Renderer>().material.mainTexture = www.texture;
// OPTIONAL: filter the texture first before creating normal map
Debug.Log("Filtering texture..");
Texture2D filteredTex = NormalMapTools.FilterMedian(www.texture, 5);
// create normal map
Debug.Log("Creating normal map");
Texture2D normalTex = NormalMapTools.CreateNormalmap(filteredTex, 6);
//Texture2D normalTex = NormalMapTools.CreateNormalmap(www.texture,5); // if want to use original texture, instead of filtered
GetComponent <Renderer>().material.SetTexture("_BumpMap", normalTex);
// NOTE: Normal map shader needs to be modified, UnpackNormal() is not needed, it breaks the runtime normalmap..
// http://forum.unity3d.com/threads/creating-runtime-normal-maps-using-rendertotexture.135841/#post-924587
// create specular map
// Texture2D specularTex = NormalMapTools.CreateSpecular(www.texture,1.2f,0.35f); // using original texture
Debug.Log("Creating specular map");
Texture2D specularTex = NormalMapTools.CreateSpecular(filteredTex, 1.2f, 0.5f); // using filtered texture
GetComponent <Renderer>().material.SetTexture("_SpecMap", specularTex);
// EXTRA TOOLS: combine rgb texture + specular texture (if you want to use unity default specular shader which takes main texture as RGB + A = gloss)
//Debug.Log ("Combining RGB + Specular");
//Texture2D RGBSpecTex = NormalMapTools.CombineRGBAndSpecular(www.texture,specularTex);
//renderer.material.mainTexture = RGBSpecTex;
}
public static Texture2D GenerateBumpMap(Texture2D diffuse, float strength = 1f)
{
return(NormalMapTools.CreateNormalmap(diffuse, strength));
}
public static Texture2D GenerateSpecularMap(Texture2D diffuse, float strength = 1f, float cutoff = 0.5f)
{
Texture2D spec = NormalMapTools.CreateSpecular(diffuse, strength, cutoff);
return(NormalMapTools.CombineRGBAndSpecular(diffuse, spec));
}
