65 lines
2.5 KiB
C#
65 lines
2.5 KiB
C#
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using UnityEngine;
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using System.Collections;
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using System;
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public class NormalMapMakerRuntimeDemo : MonoBehaviour
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{
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// example texture to load
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public string url = "http://upload.wikimedia.org/wikipedia/commons/4/49/Olivine_basalt2.jpg";
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// Sample texture: "Olivine basalt2". Licensed under Creative Commons Attribution-Share Alike 3.0 via Wikimedia Commons
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// http://commons.wikimedia.org/wiki/File:Olivine_basalt2.jpg#mediaviewer/File:Olivine_basalt2.jpg
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void Start ()
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{
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// call our image loader & converter sample
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StartCoroutine("LoadImageFromWebAndConvertToNormalMap");
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}
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// example: Loads texture using WWW, then filters it, converts to normalmap, creates specular map and assigns them to material
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IEnumerator LoadImageFromWebAndConvertToNormalMap()
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{
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Debug.Log ("Loading texture:" + url);
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WWW www = new WWW(url);
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yield return www;
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Debug.Log ("Finished loading");
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if (!String.IsNullOrEmpty(www.error)) Debug.Log("Texture loading error:" + www.error);
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// assign as maintexture
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GetComponent<Renderer>().material.mainTexture = www.texture;
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// OPTIONAL: filter the texture first before creating normal map
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Debug.Log ("Filtering texture..");
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Texture2D filteredTex = NormalMapTools.FilterMedian(www.texture,5);
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// create normal map
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Debug.Log ("Creating normal map");
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Texture2D normalTex = NormalMapTools.CreateNormalmap(filteredTex,6);
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//Texture2D normalTex = NormalMapTools.CreateNormalmap(www.texture,5); // if want to use original texture, instead of filtered
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GetComponent<Renderer>().material.SetTexture("_BumpMap",normalTex);
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// NOTE: Normal map shader needs to be modified, UnpackNormal() is not needed, it breaks the runtime normalmap..
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// http://forum.unity3d.com/threads/creating-runtime-normal-maps-using-rendertotexture.135841/#post-924587
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// create specular map
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// Texture2D specularTex = NormalMapTools.CreateSpecular(www.texture,1.2f,0.35f); // using original texture
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Debug.Log ("Creating specular map");
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Texture2D specularTex = NormalMapTools.CreateSpecular(filteredTex,1.2f,0.5f); // using filtered texture
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GetComponent<Renderer>().material.SetTexture("_SpecMap",specularTex);
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// EXTRA TOOLS: combine rgb texture + specular texture (if you want to use unity default specular shader which takes main texture as RGB + A = gloss)
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//Debug.Log ("Combining RGB + Specular");
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//Texture2D RGBSpecTex = NormalMapTools.CombineRGBAndSpecular(www.texture,specularTex);
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//renderer.material.mainTexture = RGBSpecTex;
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}
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}
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