Tiled Map Display Problem

Questions & Answers
1

Hi,

I load a tiled map made by Tiled Map Editor, but there are black edges around each tile, how to fix it?

9192-screenshot.png

The script I used is similar to UniTMX, here is the generating uv part:

	private List<Vector2> GenUV (ref TileSet tileset)
	{

		List<Vector2> uv = new List<Vector2> (); 
		int horizontalCellCount = (tileset.SourceWidth - tileset.Margin) / (tileset.TileWidth + tileset.Spacing);
		int verticalCellCount = (tileset.SourceHeight - tileset.Margin) / (tileset.TileHeight + tileset.Spacing);		
		float cellWidth = ((float)(tileset.TileWidth) / tileset.SourceWidth);
		float cellHeight = ((float)(tileset.TileHeight) / tileset.SourceHeight);
		int dataValue;
		for (int y = 0; y < Height; y++)
		{
			for (int x = 0; x < Width; x++)
			{
				if (Data[y, x] != 0)
				{
					dataValue = Data[y, x] - tileset.FirstGID;
					int posY = dataValue / verticalCellCount;
					int posX = dataValue % horizontalCellCount;
					float u = ((float)(tileset.Margin + (tileset.TileWidth + tileset.Spacing) * posX) / tileset.SourceWidth);
					float v = 1.0f - ((float)(tileset.Margin + (tileset.TileHeight + tileset.Spacing) * posY) / tileset.SourceHeight);
					uv.AddRange (new Vector2[] {
					    new Vector2 (u, v),
					    new Vector2 (u, v - cellHeight),
						new Vector2 (u + cellWidth, v),
						new Vector2 (u + cellWidth, v - cellHeight),																
					});
				}
			}
		}
		return uv;
	}

My tileset has 4 pixels for both spacing and margin.

Thank you for your help.

2

Hi, I’ve found a solution.
It seems a texture problem. I found someone asked a similar question at here:
link text

However, the answer doesn’t work for me. Instead, I found if I set the texture’s Filter Mode to Point, there will be no dark lines. I don’t know why, but it dose solve the problem.