diff --git a/include/IVideoDriver.h b/include/IVideoDriver.h
index 9c4d84c4..55f5bc2a 100644
--- a/include/IVideoDriver.h
+++ b/include/IVideoDriver.h
@@ -801,7 +801,7 @@ namespace video
 		\param texture Texture to be drawn.
 		\param destPos Upper left 2d destination position where the
 		image will be drawn.
-		\param sourceRect Source rectangle in the image.
+		\param sourceRect Source rectangle in the texture (based on it's OriginalSize)
 		\param clipRect Pointer to rectangle on the screen where the
 		image is clipped to.
 		If this pointer is NULL the image is not clipped.
@@ -823,7 +823,7 @@ namespace video
 		\param texture Texture to be drawn.
 		\param pos Upper left 2d destination position where the image
 		will be drawn.
-		\param sourceRects Source rectangles of the image.
+		\param sourceRects Source rectangles of the texture (based on it's OriginalSize)
 		\param indices List of indices which choose the actual
 		rectangle used each time.
 		\param kerningWidth Offset to Position on X
@@ -851,7 +851,7 @@ namespace video
 		\param texture Texture to be drawn.
 		\param positions Array of upper left 2d destinations where the
 		images will be drawn.
-		\param sourceRects Source rectangles of the image.
+		\param sourceRects Source rectangles of the texture (based on it's OriginalSize)
 		\param clipRect Pointer to rectangle on the screen where the
 		images are clipped to.
 		If this pointer is 0 then the image is not clipped.
@@ -871,7 +871,7 @@ namespace video
 		/** Suggested and first implemented by zola.
 		\param texture The texture to draw from
 		\param destRect The rectangle to draw into
-		\param sourceRect The rectangle denoting a part of the texture
+		\param sourceRect The rectangle denoting a part of the texture (based on it's OriginalSize)
 		\param clipRect Clips the destination rectangle (may be 0)
 		\param colors Array of 4 colors denoting the color values of
 		the corners of the destRect