/// <summary>
/// Make sure images exist, resize source if needed to match the destination
/// </summary>
/// <param name="dest">Destination image</param>
/// <param name="src">Source image</param>
/// <returns>Sanitization was succefull</returns>
private bool SanitizeLayers(ManagedImage dest, ManagedImage src)
{
if (dest == null || src == null)
{
return(false);
}
if ((dest.Channels & ManagedImage.ImageChannels.Alpha) == 0)
{
dest.ConvertChannels(dest.Channels | ManagedImage.ImageChannels.Alpha);
}
if (dest.Width != src.Width || dest.Height != src.Height)
{
try { src.ResizeNearestNeighbor(dest.Width, dest.Height); }
catch (Exception) { return(false); }
}
return(true);
}
private void ApplyAlpha(ManagedImage dest, VisualAlphaParam param, float val)
{
ManagedImage src = LoadResourceLayer(param.TGAFile);
if (dest == null || src == null || src.Alpha == null)
{
return;
}
if ((dest.Channels & ManagedImage.ImageChannels.Alpha) == 0)
{
dest.ConvertChannels(ManagedImage.ImageChannels.Alpha | dest.Channels);
}
if (dest.Width != src.Width || dest.Height != src.Height)
{
try { src.ResizeNearestNeighbor(dest.Width, dest.Height); }
catch (Exception) { return; }
}
for (int i = 0; i < dest.Alpha.Length; i++)
{
byte alpha = src.Alpha[i] <= ((1 - val) * 255) ? (byte)0 : (byte)255;
if (alpha != 255)
{
}
if (param.MultiplyBlend)
{
dest.Alpha[i] = (byte)((dest.Alpha[i] * alpha) >> 8);
}
else
{
if (alpha > dest.Alpha[i])
{
dest.Alpha[i] = alpha;
}
}
}
}
/// <summary>
/// Make sure images exist, resize source if needed to match the destination
/// </summary>
/// <param name="dest">Destination image</param>
/// <param name="src">Source image</param>
/// <returns>Sanitization was succefull</returns>
private bool SanitizeLayers(ManagedImage dest, ManagedImage src)
{
if (dest == null || src == null) return false;
if ((dest.Channels & ManagedImage.ImageChannels.Alpha) == 0)
{
dest.ConvertChannels(dest.Channels | ManagedImage.ImageChannels.Alpha);
}
if (dest.Width != src.Width || dest.Height != src.Height)
{
try { src.ResizeNearestNeighbor(dest.Width, dest.Height); }
catch (Exception) { return false; }
}
return true;
}
public void Bake()
{
bakedTexture = new AssetTexture(new ManagedImage(bakeWidth, bakeHeight,
ManagedImage.ImageChannels.Color | ManagedImage.ImageChannels.Alpha | ManagedImage.ImageChannels.Bump));
// Base color for eye bake is white, color of layer0 for others
if (bakeType == BakeType.Eyes)
{
InitBakedLayerColor(Color4.White);
}
else if (textures.Count > 0)
{
InitBakedLayerColor(textures[0].Color);
}
// Do we have skin texture?
bool SkinTexture = textures.Count > 0 && textures[0].Texture != null;
if (bakeType == BakeType.Head)
{
DrawLayer(LoadResourceLayer("head_color.tga"), false);
AddAlpha(bakedTexture.Image, LoadResourceLayer("head_alpha.tga"));
MultiplyLayerFromAlpha(bakedTexture.Image, LoadResourceLayer("head_skingrain.tga"));
}
if (!SkinTexture && bakeType == BakeType.UpperBody)
{
DrawLayer(LoadResourceLayer("upperbody_color.tga"), false);
}
if (!SkinTexture && bakeType == BakeType.LowerBody)
{
DrawLayer(LoadResourceLayer("lowerbody_color.tga"), false);
}
ManagedImage alphaWearableTexture = null;
// Layer each texture on top of one other, applying alpha masks as we go
for (int i = 0; i < textures.Count; i++)
{
// Skip if we have no texture on this layer
if (textures[i].Texture == null)
{
continue;
}
// Is this Alpha wearable and does it have an alpha channel?
if (textures[i].TextureIndex >= AvatarTextureIndex.LowerAlpha &&
textures[i].TextureIndex <= AvatarTextureIndex.HairAlpha)
{
if (textures[i].Texture.Image.Alpha != null)
{
alphaWearableTexture = textures[i].Texture.Image.Clone();
}
else if (textures[i].TextureID == IMG_INVISIBLE)
{
alphaWearableTexture = new ManagedImage(bakeWidth, bakeHeight, ManagedImage.ImageChannels.Alpha);
}
continue;
}
// Don't draw skin and tattoo on head bake first
// For head bake the skin and texture are drawn last, go figure
if (bakeType == BakeType.Head && (i == 0 || i == 1))
{
continue;
}
ManagedImage texture = textures[i].Texture.Image.Clone();
//File.WriteAllBytes(bakeType + "-texture-layer-" + i + ".tga", texture.ExportTGA());
// Resize texture to the size of baked layer
// FIXME: if texture is smaller than the layer, don't stretch it, tile it
if (texture.Width != bakeWidth || texture.Height != bakeHeight)
{
try { texture.ResizeNearestNeighbor(bakeWidth, bakeHeight); }
catch (Exception) { continue; }
}
// Special case for hair layer for the head bake
// If we don't have skin texture, we discard hair alpha
// and apply hair(i==2) pattern over the texture
if (!SkinTexture && bakeType == BakeType.Head && i == 2)
{
if (texture.Alpha != null)
{
for (int j = 0; j < texture.Alpha.Length; j++)
{
texture.Alpha[j] = (byte)255;
}
}
MultiplyLayerFromAlpha(texture, LoadResourceLayer("head_hair.tga"));
}
// Aply tint and alpha masks except for skin that has a texture
// on layer 0 which always overrides other skin settings
if (!(IsSkin && i == 0))
{
ApplyTint(texture, textures[i].Color);
// For hair bake, we skip all alpha masks
// and use one from the texture, for both
// alpha and morph layers
if (bakeType == BakeType.Hair)
{
if (texture.Alpha != null)
{
bakedTexture.Image.Bump = texture.Alpha;
}
else
{
for (int j = 0; j < bakedTexture.Image.Bump.Length; j++)
{
bakedTexture.Image.Bump[j] = byte.MaxValue;
}
}
}
// Apply parametrized alpha masks
else if (textures[i].AlphaMasks != null && textures[i].AlphaMasks.Count > 0)
{
// Combined mask for the layer, fully transparent to begin with
ManagedImage combinedMask = new ManagedImage(bakeWidth, bakeHeight, ManagedImage.ImageChannels.Alpha);
int addedMasks = 0;
// First add mask in normal blend mode
foreach (KeyValuePair <VisualAlphaParam, float> kvp in textures[i].AlphaMasks)
{
if (!MaskBelongsToBake(kvp.Key.TGAFile))
{
continue;
}
if (kvp.Key.MultiplyBlend == false && (kvp.Value > 0f || !kvp.Key.SkipIfZero))
{
ApplyAlpha(combinedMask, kvp.Key, kvp.Value);
//File.WriteAllBytes(bakeType + "-layer-" + i + "-mask-" + addedMasks + ".tga", combinedMask.ExportTGA());
addedMasks++;
}
}
// If there were no mask in normal blend mode make aplha fully opaque
if (addedMasks == 0)
{
for (int l = 0; l < combinedMask.Alpha.Length; l++)
{
combinedMask.Alpha[l] = 255;
}
}
// Add masks in multiply blend mode
foreach (KeyValuePair <VisualAlphaParam, float> kvp in textures[i].AlphaMasks)
{
if (!MaskBelongsToBake(kvp.Key.TGAFile))
{
continue;
}
if (kvp.Key.MultiplyBlend == true && (kvp.Value > 0f || !kvp.Key.SkipIfZero))
{
ApplyAlpha(combinedMask, kvp.Key, kvp.Value);
//File.WriteAllBytes(bakeType + "-layer-" + i + "-mask-" + addedMasks + ".tga", combinedMask.ExportTGA());
addedMasks++;
}
}
if (addedMasks > 0)
{
// Apply combined alpha mask to the cloned texture
AddAlpha(texture, combinedMask);
}
// Is this layer used for morph mask? If it is, use its
// alpha as the morth for the whole bake
if (Textures[i].TextureIndex == AppearanceManager.MorphLayerForBakeType(bakeType))
{
bakedTexture.Image.Bump = texture.Alpha;
}
//File.WriteAllBytes(bakeType + "-masked-texture-" + i + ".tga", texture.ExportTGA());
}
}
bool useAlpha = i == 0 && (BakeType == BakeType.Skirt || BakeType == BakeType.Hair);
DrawLayer(texture, useAlpha);
//File.WriteAllBytes(bakeType + "-layer-" + i + ".tga", texture.ExportTGA());
}
// For head and tattoo, we add skin last
if (IsSkin && bakeType == BakeType.Head)
{
ManagedImage texture;
if (textures[0].Texture != null)
{
texture = textures[0].Texture.Image.Clone();
if (texture.Width != bakeWidth || texture.Height != bakeHeight)
{
try { texture.ResizeNearestNeighbor(bakeWidth, bakeHeight); }
catch (Exception) { }
}
DrawLayer(texture, false);
}
// Add head tattoo here (if available, order-dependant)
if (textures.Count > 1 && textures[1].Texture != null)
{
texture = textures[1].Texture.Image.Clone();
if (texture.Width != bakeWidth || texture.Height != bakeHeight)
{
try { texture.ResizeNearestNeighbor(bakeWidth, bakeHeight); }
catch (Exception) { }
}
DrawLayer(texture, false);
}
}
// Apply any alpha wearable textures to make parts of the avatar disappear
if (alphaWearableTexture != null)
{
AddAlpha(bakedTexture.Image, alphaWearableTexture);
}
// We are done, encode asset for finalized bake
bakedTexture.Encode();
//File.WriteAllBytes(bakeType + ".tga", bakedTexture.Image.ExportTGA());
}
private bool DrawLayer(ManagedImage source, bool useSourceAlpha)
{
bool sourceHasColor;
bool sourceHasAlpha;
bool sourceHasBump;
int i = 0;
sourceHasColor = ((source.Channels & ManagedImage.ImageChannels.Color) != 0 &&
source.Red != null && source.Green != null && source.Blue != null);
sourceHasAlpha = ((source.Channels & ManagedImage.ImageChannels.Alpha) != 0 && source.Alpha != null);
sourceHasBump = ((source.Channels & ManagedImage.ImageChannels.Bump) != 0 && source.Bump != null);
useSourceAlpha = (useSourceAlpha && sourceHasAlpha);
if (source.Width != _bakeWidth || source.Height != _bakeHeight)
{
try { source.ResizeNearestNeighbor(_bakeWidth, _bakeHeight); }
catch { return(false); }
}
int alpha = 255;
//int alphaInv = 255 - alpha;
int alphaInv = 256 - alpha;
byte[] bakedRed = _bakedTexture.Image.Red;
byte[] bakedGreen = _bakedTexture.Image.Green;
byte[] bakedBlue = _bakedTexture.Image.Blue;
byte[] bakedAlpha = _bakedTexture.Image.Alpha;
byte[] bakedBump = _bakedTexture.Image.Bump;
byte[] sourceRed = source.Red;
byte[] sourceGreen = source.Green;
byte[] sourceBlue = source.Blue;
byte[] sourceAlpha = null;
byte[] sourceBump = null;
if (sourceHasAlpha)
{
sourceAlpha = source.Alpha;
}
if (sourceHasBump)
{
sourceBump = source.Bump;
}
for (int y = 0; y < _bakeHeight; y++)
{
for (int x = 0; x < _bakeWidth; x++)
{
if (sourceHasAlpha)
{
alpha = sourceAlpha[i];
//alphaInv = 255 - alpha;
alphaInv = 256 - alpha;
}
if (sourceHasColor)
{
bakedRed[i] = (byte)((bakedRed[i] * alphaInv + sourceRed[i] * alpha) >> 8);
bakedGreen[i] = (byte)((bakedGreen[i] * alphaInv + sourceGreen[i] * alpha) >> 8);
bakedBlue[i] = (byte)((bakedBlue[i] * alphaInv + sourceBlue[i] * alpha) >> 8);
}
if (useSourceAlpha)
{
bakedAlpha[i] = sourceAlpha[i];
}
if (sourceHasBump)
{
bakedBump[i] = sourceBump[i];
}
++i;
}
}
return(true);
}
private bool DrawLayer(ManagedImage source, bool useSourceAlpha)
{
bool sourceHasColor;
bool sourceHasAlpha;
bool sourceHasBump;
int i = 0;
sourceHasColor = ((source.Channels & ManagedImage.ImageChannels.Color) != 0 &&
source.Red != null && source.Green != null && source.Blue != null);
sourceHasAlpha = ((source.Channels & ManagedImage.ImageChannels.Alpha) != 0 && source.Alpha != null);
sourceHasBump = ((source.Channels & ManagedImage.ImageChannels.Bump) != 0 && source.Bump != null);
useSourceAlpha = (useSourceAlpha && sourceHasAlpha);
if (source.Width != _bakeWidth || source.Height != _bakeHeight)
{
try { source.ResizeNearestNeighbor(_bakeWidth, _bakeHeight); }
catch { return false; }
}
int alpha = 255;
//int alphaInv = 255 - alpha;
int alphaInv = 256 - alpha;
byte[] bakedRed = _bakedTexture.Image.Red;
byte[] bakedGreen = _bakedTexture.Image.Green;
byte[] bakedBlue = _bakedTexture.Image.Blue;
byte[] bakedAlpha = _bakedTexture.Image.Alpha;
byte[] bakedBump = _bakedTexture.Image.Bump;
byte[] sourceRed = source.Red;
byte[] sourceGreen = source.Green;
byte[] sourceBlue = source.Blue;
byte[] sourceAlpha = null;
byte[] sourceBump = null;
if (sourceHasAlpha)
sourceAlpha = source.Alpha;
if (sourceHasBump)
sourceBump = source.Bump;
for (int y = 0; y < _bakeHeight; y++)
{
for (int x = 0; x < _bakeWidth; x++)
{
if (sourceHasAlpha)
{
alpha = sourceAlpha[i];
//alphaInv = 255 - alpha;
alphaInv = 256 - alpha;
}
if (sourceHasColor)
{
bakedRed[i] = (byte)((bakedRed[i] * alphaInv + sourceRed[i] * alpha) >> 8);
bakedGreen[i] = (byte)((bakedGreen[i] * alphaInv + sourceGreen[i] * alpha) >> 8);
bakedBlue[i] = (byte)((bakedBlue[i] * alphaInv + sourceBlue[i] * alpha) >> 8);
}
if (useSourceAlpha)
bakedAlpha[i] = sourceAlpha[i];
if (sourceHasBump)
bakedBump[i] = sourceBump[i];
++i;
}
}
return true;
}
