Exemplo n.º 1
0
        private void PackItemsToAtlas(List <TextureTools.AtlasItem> items, Size atlasSize, out double packRate)
        {
            items.ForEach(i => i.Allocated = false);
            // Reserve space for default one-pixel padding.
            atlasSize.Width  += 2;
            atlasSize.Height += 2;
            var rectAllocator = new RectAllocator(atlasSize);

            TextureTools.AtlasItem firstAllocatedItem = null;
            foreach (var item in items)
            {
                var padding        = item.CookingRules.AtlasItemPadding;
                var paddedItemSize = new Size(item.BitmapInfo.Width + padding * 2, item.BitmapInfo.Height + padding * 2);
                if (firstAllocatedItem == null || AreAtlasItemsCompatible(items, firstAllocatedItem, item))
                {
                    if (rectAllocator.Allocate(paddedItemSize, out item.AtlasRect))
                    {
                        item.Allocated     = true;
                        firstAllocatedItem = firstAllocatedItem ?? item;
                    }
                }
            }
            packRate = rectAllocator.GetPackRate();
            // Adjust item rects according to theirs paddings.
            foreach (var item in items)
            {
                if (!item.Allocated)
                {
                    continue;
                }
                var atlasRect = item.AtlasRect;
                atlasRect.A += new IntVector2(item.CookingRules.AtlasItemPadding);
                atlasRect.B -= new IntVector2(item.CookingRules.AtlasItemPadding);
                // Don't leave space between item rectangle and texture boundaries for items with 1 pixel padding.
                if (item.CookingRules.AtlasItemPadding == 1)
                {
                    atlasRect.A -= new IntVector2(1);
                    atlasRect.B -= new IntVector2(1);
                }
                item.AtlasRect = atlasRect;
            }
        }
Exemplo n.º 2
0
        private static void PackItemsToAtlas(List <AtlasItem> items, Size size, out double packRate)
        {
            items.ForEach(i => i.Allocated = false);
            // Take in account 1 pixel border for each side.
            var       a = new RectAllocator(new Size(size.Width + 2, size.Height + 2));
            AtlasItem firstAllocatedItem = null;

            foreach (var item in items)
            {
                var sz = new Size(item.Bitmap.Width + 2, item.Bitmap.Height + 2);
                if (firstAllocatedItem == null || AreAtlasItemsCompatible(items, firstAllocatedItem, item))
                {
                    if (a.Allocate(sz, out item.AtlasRect))
                    {
                        item.Allocated     = true;
                        firstAllocatedItem = firstAllocatedItem ?? item;
                    }
                }
            }
            packRate = a.GetPackRate();
        }