private void prepareForPacking(LeapTextureFeature feature,
out Texture2D defaultTexture,
out Texture2D packedTexture,
out Texture2D[] rawTextureArray,
out Texture2D[] processedTextureArray)
{
if (_extraTextures == null)
{
_extraTextures = new TextureReference[0];
}
rawTextureArray = feature.featureData.Query().
Select(dataObj => dataObj.texture).
Concat(_extraTextures.Query().
Where(p => p.channel == feature.channel).
Select(p => p.texture)).
ToArray();
processedTextureArray = rawTextureArray.Query().
Select(t => processTexture(t)).
ToArray();
defaultTexture = getDefaultTexture(Color.white); //TODO, pull color from feature data
for (int i = 0; i < processedTextureArray.Length; i++)
{
if (processedTextureArray[i] == null)
{
processedTextureArray[i] = defaultTexture;
}
}
packedTexture = new Texture2D(1, 1, TextureFormat.ARGB32, mipmap: false, linear: true);
packedTexture.filterMode = _filterMode;
}
private void packSecondaryTextures(ProgressBar progress, UVChannelFlags channel, LeapTextureFeature mainFeature, Texture2D packedTexture, Rect[] packedRects, Texture2D[] packedTextures)
{
//All texture features that are NOT the main texture do not get their own atlas step
//They are simply copied into a new texture
var nonMainFeatures = _features.Query().Where(f => f.channel == channel).Skip(1).ToList();
progress.Begin(nonMainFeatures.Count, "", "Copying secondary textures: ", () => {
foreach (var secondaryFeature in nonMainFeatures)
{
RenderTexture secondaryRT = new RenderTexture(packedTexture.width, packedTexture.height, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
RenderTexture.active = secondaryRT;
GL.Clear(clearDepth: false, clearColor: true, backgroundColor: Color.black);
GL.LoadPixelMatrix(0, 1, 0, 1);
progress.Begin(secondaryFeature.featureData.Count, "", secondaryFeature.propertyName, () => {
for (int i = 0; i < secondaryFeature.featureData.Count; i++)
{
var mainTexture = mainFeature.featureData[i].texture;
if (mainTexture == null)
{
progress.Step();
continue;
}
var secondaryTexture = secondaryFeature.featureData[i].texture;
if (secondaryTexture == null)
{
progress.Step();
continue;
}
progress.Step(secondaryTexture.name);
Rect rect = packedRects[i];
//Use mainTexture instead of secondaryTexture here to calculate correct border to line up with main texture
float borderDX = _border / (float)mainTexture.width;
float borderDY = _border / (float)mainTexture.height;
drawTexture(secondaryTexture, secondaryRT, rect, borderDX, borderDY);
}
});
packedTextures[_features.IndexOf(secondaryFeature)] = convertToTexture2D(secondaryRT, mipmap: false);
}
});
}
