diff --git a/gdx2d-library/gdx2d-core/src/main/java/ch/hevs/gdx2d/lib/GdxGraphics.java b/gdx2d-library/gdx2d-core/src/main/java/ch/hevs/gdx2d/lib/GdxGraphics.java
index d5e2bb8b..c241e789 100644
--- a/gdx2d-library/gdx2d-core/src/main/java/ch/hevs/gdx2d/lib/GdxGraphics.java
+++ b/gdx2d-library/gdx2d-core/src/main/java/ch/hevs/gdx2d/lib/GdxGraphics.java
@@ -196,6 +196,9 @@ private void checkMode(RenderingMode mode) {
 				break;
 		}
 
+    Gdx.gl.glEnable(GL20.GL_BLEND);
+		Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);
+
 		switch (mode) {
 			case SHAPE_LINE:
 				shapeRenderer.begin(ShapeType.Line);