private static void TryBlendInto(ref RenderTexture renderTexture, Layer layer, int matId, P3dGroup group)
{
var image = layer.GetImage(matId, group);
var texture = image.Preview ?? image.Current;
if (texture != null)
{
renderTexture = P3dPaintFill.Blit(renderTexture, P3dBlendMode.AlphaBlend, texture, Color.white, layer.Opacity, 0.0f);
}
}
public void UpdateMergedLayers(Layer currentLayer)
{
foreach (var mat in Mats)
{
foreach (var mergedLayer in mat.MergedLayers.Values)
{
mergedLayer.Dirty = true;
if (mergedLayer.Layer != currentLayer)
{
mergedLayer.Clear();
mergedLayer.Layer = currentLayer;
}
}
if (mat.Template != null)
{
foreach (var slot in mat.Template.Slots)
{
mat.UpdateMergedLayers(slot.WriteR.SourceGroup);
mat.UpdateMergedLayers(slot.WriteG.SourceGroup);
mat.UpdateMergedLayers(slot.WriteB.SourceGroup);
mat.UpdateMergedLayers(slot.WriteA.SourceGroup);
}
}
foreach (var pair in mat.MergedLayers)
{
var group = pair.Key;
var mergedLayer = pair.Value;
if (mergedLayer.Dirty == true)
{
mergedLayer.Clear();
}
else
{
var currentLayerIndex = Layers.IndexOf(currentLayer);
if (mergedLayer.Under == null)
{
mergedLayer.Under = P3dHelper.GetRenderTexture(mat.Desc);
var groupData = P3dGroupData.GetGroupData(group);
if (groupData != null)
{
P3dPaintReplace.Blit(mergedLayer.Under, groupData.DefaultTexture, groupData.DefaultColor);
}
else
{
P3dPaintReplace.Blit(mergedLayer.Under, default(Texture), default(Color));
}
for (var i = 0; i < currentLayerIndex; i++)
{
TryBlendInto(ref mergedLayer.Under, Layers[i], mat.Id, group);
}
}
// Last layer?
if (currentLayerIndex == Layers.Count - 1)
{
if (mergedLayer.Above != null)
{
mergedLayer.Above = P3dHelper.ReleaseRenderTexture(mergedLayer.Above);
}
}
else
{
if (mergedLayer.Above == null)
{
mergedLayer.Above = P3dHelper.GetRenderTexture(mat.Desc);
P3dPaintReplace.Blit(mergedLayer.Above, default(Texture), default(Color));
for (var i = currentLayerIndex + 1; i < Layers.Count; i++)
{
TryBlendInto(ref mergedLayer.Above, Layers[i], mat.Id, group);
}
}
}
if (mergedLayer.Final == null)
{
mergedLayer.Final = P3dHelper.GetRenderTexture(mat.Desc);
}
P3dPaintReplace.Blit(mergedLayer.Final, mergedLayer.Under, Color.white);
TryBlendInto(ref mergedLayer.Final, currentLayer, mat.Id, group);
if (mergedLayer.Above != null)
{
mergedLayer.Final = P3dPaintFill.Blit(mergedLayer.Final, P3dBlendMode.AlphaBlend, mergedLayer.Above, Color.white, 1.0f, 0.0f);
}
}
}
}
}