///// <summary>
///// Outputs a Render texture as a .png file
///// </summary>
///// <param name="path">The path to write to, including filename ending in .exr</param>
///// <param name="sourceRenderTexture">The render texture to export</param>
//public static void WriteRenderTexturePNG(string path, RenderTexture sourceRenderTexture, TextureFormat textureFormat = TextureFormat.RGBA32)
//{
// RenderTexture origTex = RenderTexture.active;
// RenderTexture.active = sourceRenderTexture;
// Texture2D exportTexture = new Texture2D(RenderTexture.active.width, RenderTexture.active.height, textureFormat, false);
// exportTexture.ReadPixels(new Rect(0, 0, RenderTexture.active.width, RenderTexture.active.height), 0, 0);
// exportTexture.Apply();
// byte[] exrBytes = ImageConversion.EncodeToPNG(exportTexture);
// PWCommon4.Utils.WriteAllBytes(path, exrBytes);
// RenderTexture.active = origTex;
//}
/// <summary>
/// Outputs a Render texture to different file formats (default: .exr file)
/// </summary>
/// <param name="path">The path to write to, without the extension. The correct extension will be added according to the chosen imageFileType.</param>
/// <param name="sourceRenderTexture">The render texture to export</param>
/// <param name="imageFileType">Image File Type: EXR, PNG, TGA or JPG</param>
/// <param name="textureFormat">Texture color format for the temporary Texture 2D to read the render texture into for exporting.</param>
/// <returns>The full path to the exported file.</returns>
public static string WriteRenderTexture(string path, RenderTexture sourceRenderTexture, GaiaConstants.ImageFileType imageFileType = GaiaConstants.ImageFileType.Exr, TextureFormat textureFormat = TextureFormat.RGBAFloat, int jpgQuality = 75)
{
RenderTexture origTex = RenderTexture.active;
RenderTexture.active = sourceRenderTexture;
Texture2D exportTexture = new Texture2D(RenderTexture.active.width, RenderTexture.active.height, textureFormat, false);
exportTexture.ReadPixels(new Rect(0, 0, RenderTexture.active.width, RenderTexture.active.height), 0, 0);
exportTexture.Apply();
byte[] fileBytes = new byte[0];
string extension = ".file";
switch (imageFileType)
{
case GaiaConstants.ImageFileType.Exr:
fileBytes = ImageConversion.EncodeToEXR(exportTexture, Texture2D.EXRFlags.CompressZIP);
extension = ".exr";
break;
case GaiaConstants.ImageFileType.Png:
fileBytes = ImageConversion.EncodeToPNG(exportTexture);
extension = ".png";
break;
case GaiaConstants.ImageFileType.Tga:
fileBytes = ImageConversion.EncodeToTGA(exportTexture);
extension = ".tga";
break;
case GaiaConstants.ImageFileType.Jpg:
fileBytes = ImageConversion.EncodeToJPG(exportTexture, jpgQuality);
extension = ".jpg";
break;
}
path += extension;
PWCommon4.Utils.WriteAllBytes(path, fileBytes);
RenderTexture.active = origTex;
return(path);
}
/// <summary>
/// Compress / encode a multi layer map file to an image
/// </summary>
/// <param name="input">Multi layer map in format x,y,layer</param>
/// <param name="imageName">Output image name - image image index and extension will be added</param>
/// <param name="exportPNG">True if a png is wanted</param>
/// <param name="exportJPG">True if a jpg is wanted</param>
public static void CompressToMultiChannelFileImage(string imageName, HeightMap r, HeightMap g, HeightMap b, HeightMap a, TextureFormat imageStorageFormat, GaiaConstants.ImageFileType imageFileType)
{
int width = 0;
int height = 0;
if (r != null)
{
width = r.Width();
height = r.Depth();
}
else if (g != null)
{
width = g.Width();
height = g.Depth();
}
else if (b != null)
{
width = b.Width();
height = b.Depth();
}
else if (a != null)
{
width = a.Width();
height = a.Depth();
}
if (string.IsNullOrEmpty(imageName))
{
Debug.LogError("Cannot write image - no name supplied!");
return;
}
if (width == 0 || height == 0)
{
Debug.LogError("Cannot write image - invalid dimensions : " + width + ", " + height);
return;
}
Texture2D exportTexture = new Texture2D(width, height, imageStorageFormat, true, false);
Color pixelColor = new Color();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
pixelColor.r = r != null ? r[x, y] : 0f;
pixelColor.g = g != null ? g[x, y] : 0f;
pixelColor.b = b != null ? b[x, y] : 0f;
pixelColor.a = a != null ? a[x, y] : 1f;
exportTexture.SetPixel(x, y, pixelColor);
}
}
exportTexture.Apply();
#if UNITY_2017_1_OR_NEWER
switch (imageFileType)
{
case GaiaConstants.ImageFileType.Jpg:
byte[] jpgBytes = ImageConversion.EncodeToJPG(exportTexture, 100);
GaiaCommon1.Utils.WriteAllBytes(imageName + ".jpg", jpgBytes);
break;
case GaiaConstants.ImageFileType.Png:
byte[] pngBytes = ImageConversion.EncodeToPNG(exportTexture);
GaiaCommon1.Utils.WriteAllBytes(imageName + ".png", pngBytes);
break;
case GaiaConstants.ImageFileType.Exr:
byte[] exrBytes = ImageConversion.EncodeToEXR(exportTexture, Texture2D.EXRFlags.CompressZIP);
GaiaCommon1.Utils.WriteAllBytes(imageName + ".exr", exrBytes);
break;
}
#else
switch (imageFileType)
{
case GaiaConstants.ImageFileType.Jpg:
byte[] jpgBytes = exportTexture.EncodeToJPG();
GaiaCommon1.Utils.WriteAllBytes(imageName + ".jpg", jpgBytes);
break;
case GaiaConstants.ImageFileType.Png:
byte[] pngBytes = exportTexture.EncodeToPNG();
GaiaCommon1.Utils.WriteAllBytes(imageName + ".png", pngBytes);
break;
case GaiaConstants.ImageFileType.Exr:
byte[] exrBytes = exportTexture.EncodeToEXR(Texture2D.EXRFlags.CompressZIP);
GaiaCommon1.Utils.WriteAllBytes(imageName + ".exr", exrBytes);
break;
}
#endif
#if UNITY_EDITOR
AssetDatabase.Refresh();
#endif
//Lose the texture
DestroyImmediate(exportTexture);
}