SamplerState.LinearWrap not working as expected

Windows
1

I’m using the current release of monogame (3.4.0) and I experience an unexpected behaviour trying to tile sprites using the SpriteBatch. I’m following the original XNA-tutorial and expect that my texture is repeated like shown on the linked page. However, this is not the case:

(Click to enlarge)

Here’s the drawing code I’m using:

spriteBatch.Begin(SpriteSortMode.FrontToBack, BlendState.Opaque, SamplerState.LinearWrap, DepthStencilState.Default, RasterizerState.CullNone);

spriteBatch.Draw(texture, new Rectangle(0, 0, 600, 600), Color.White);

spriteBatch.End();

The rest of the code is equivalent to the project template. The texture is loaded in LoadContent and is the following file:

Am I wrong believing that the texture shouldn’t appear stretched? How can I fix that?

This happens both with the Windows and the OpenGL template.

2

Well, it works well (it’s linear).
To get the tiling effect you should draw your texture with this function:
spriteBatch.Draw(spriteTexture, Vector2.Zero, destRect, color, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
as it’s in the tutorial you’re using.

Source rectangle is what makes it tileable

A rectangle that specifies (in texels) the source texels from a texture. Use
null to draw the entire texture.

So if your source rectangle is bigger than the size of your texture, you get the tiling effect.

1 Like
3

That’s some weird behaviour, imo … How can I combine this with tilesets? If I have hundreds of different tiles on one texture, I’d be using the source rectangle to select one specific tile from the tileset, but I can’t do that when I need the source rectangle to be bigger than the texture.

4

Texture wrapping generally doesn’t work with tilesets (although you can with some shader based wrapping). Usually you just render the tile multiple times to get the effect of wrapping.