diff --git a/ebitenutil/debugprint.go b/ebitenutil/debugprint.go
index 2eefa59d3..2e21a609a 100644
--- a/ebitenutil/debugprint.go
+++ b/ebitenutil/debugprint.go
@@ -48,9 +48,8 @@ func (d *debugPrintState) drawText(gr ebiten.GraphicsContext, str string, x, y i
 		srcX := (code % xCharNum) * assets.TextImageCharWidth
 		srcY := (code / xCharNum) * assets.TextImageCharHeight
 		parts = append(parts, ebiten.TexturePart{
-			LocationX: locationX,
-			LocationY: locationY,
-			Source:    ebiten.Rect{srcX, srcY, assets.TextImageCharWidth, assets.TextImageCharHeight},
+			Dst: ebiten.Rect{locationX, locationY, assets.TextImageCharWidth, assets.TextImageCharHeight},
+			Src: ebiten.Rect{srcX, srcY, assets.TextImageCharWidth, assets.TextImageCharHeight},
 		})
 		locationX += assets.TextImageCharWidth
 	}
diff --git a/example/blocks/blocks/font.go b/example/blocks/blocks/font.go
index f94a58e96..7ba98ce53 100644
--- a/example/blocks/blocks/font.go
+++ b/example/blocks/blocks/font.go
@@ -48,9 +48,8 @@ func drawText(context ebiten.GraphicsContext, textures *Textures, str string, x,
 		x := (code % 16) * charWidth
 		y := ((code - 32) / 16) * charHeight
 		parts = append(parts, ebiten.TexturePart{
-			LocationX: locationX,
-			LocationY: locationY,
-			Source:    ebiten.Rect{x, y, charWidth, charHeight},
+			Dst: ebiten.Rect{locationX, locationY, charWidth, charHeight},
+			Src: ebiten.Rect{x, y, charWidth, charHeight},
 		})
 		locationX += charWidth
 	}
diff --git a/example/blocks/blocks/piece.go b/example/blocks/blocks/piece.go
index b82761398..363f45e48 100644
--- a/example/blocks/blocks/piece.go
+++ b/example/blocks/blocks/piece.go
@@ -147,15 +147,9 @@ func drawBlocks(context ebiten.GraphicsContext, textures *Textures, blocks [][]B
 			}
 			locationX := i * blockWidth
 			locationY := j * blockHeight
-			source := ebiten.Rect{
-				(int(block) - 1) * blockWidth, 0,
-				blockWidth, blockHeight}
-			parts = append(parts,
-				ebiten.TexturePart{
-					LocationX: locationX,
-					LocationY: locationY,
-					Source:    source,
-				})
+			dst := ebiten.Rect{locationX, locationY, blockWidth, blockHeight}
+			src := ebiten.Rect{(int(block) - 1) * blockWidth, 0, blockWidth, blockHeight}
+			parts = append(parts, ebiten.TexturePart{dst, src})
 		}
 	}
 	blocksTexture := textures.GetTexture("blocks")
diff --git a/example/blocks/blocks/titlescene.go b/example/blocks/blocks/titlescene.go
index c6aa98b96..6728a07e9 100644
--- a/example/blocks/blocks/titlescene.go
+++ b/example/blocks/blocks/titlescene.go
@@ -59,9 +59,8 @@ func drawTitleBackground(context ebiten.GraphicsContext, textures *Textures, c i
 	for j := -1; j < ScreenHeight/textureHeight+1; j++ {
 		for i := 0; i < ScreenWidth/textureWidth+1; i++ {
 			parts = append(parts, ebiten.TexturePart{
-				LocationX: i * textureWidth,
-				LocationY: j * textureHeight,
-				Source:    ebiten.Rect{0, 0, textureWidth, textureHeight},
+				Dst: ebiten.Rect{i * textureWidth, j * textureHeight, textureWidth, textureHeight},
+				Src: ebiten.Rect{0, 0, textureWidth, textureHeight},
 			})
 		}
 	}
diff --git a/example/image/main.go b/example/image/main.go
index e7e9b5c4b..4308cdb3c 100644
--- a/example/image/main.go
+++ b/example/image/main.go
@@ -58,7 +58,8 @@ func (g *Game) Update(gr ebiten.GraphicsContext) error {
 	geo.Concat(ebiten.ScaleGeometry(scaleX, scaleY))
 	geo.Concat(ebiten.RotateGeometry(float64(g.count%720) * 2 * math.Pi / 720))
 	geo.Concat(ebiten.TranslateGeometry(screenWidth/2, screenHeight/2))
-	clr := ebiten.RotateHue(float64(g.count%180) * 2 * math.Pi / 180)
+	//clr := ebiten.RotateHue(float64(g.count%180) * 2 * math.Pi / 180)
+	clr := ebiten.ColorMatrixI()
 	ebiten.DrawWholeTexture(gr, g.gophersTexture, geo, clr)
 	return nil
 }
diff --git a/graphics.go b/graphics.go
index a30320110..e97367c62 100644
--- a/graphics.go
+++ b/graphics.go
@@ -31,9 +31,8 @@ type Rect struct {
 
 // A TexturePart represents a part of a texture.
 type TexturePart struct {
-	LocationX int
-	LocationY int
-	Source    Rect
+	Dst Rect
+	Src Rect
 }
 
 // A Drawer is the interface that draws itself.
@@ -45,7 +44,7 @@ type Drawer interface {
 func DrawWholeTexture(g GraphicsContext, texture *Texture, geo GeometryMatrix, color ColorMatrix) error {
 	w, h := texture.Size()
 	parts := []TexturePart{
-		{0, 0, Rect{0, 0, w, h}},
+		{Rect{0, 0, w, h}, Rect{0, 0, w, h}},
 	}
 	return g.Texture(texture).Draw(parts, geo, color)
 }
@@ -54,7 +53,7 @@ func DrawWholeTexture(g GraphicsContext, texture *Texture, geo GeometryMatrix, c
 func DrawWholeRenderTarget(g GraphicsContext, renderTarget *RenderTarget, geo GeometryMatrix, color ColorMatrix) error {
 	w, h := renderTarget.Size()
 	parts := []TexturePart{
-		{0, 0, Rect{0, 0, w, h}},
+		{Rect{0, 0, w, h}, Rect{0, 0, w, h}},
 	}
 	return g.RenderTarget(renderTarget).Draw(parts, geo, color)
 }
@@ -114,14 +113,14 @@ func v(y int, height int) float32 {
 func textureQuads(parts []TexturePart, width, height int) []shader.TextureQuad {
 	quads := make([]shader.TextureQuad, 0, len(parts))
 	for _, part := range parts {
-		x1 := float32(part.LocationX)
-		x2 := float32(part.LocationX + part.Source.Width)
-		y1 := float32(part.LocationY)
-		y2 := float32(part.LocationY + part.Source.Height)
-		u1 := u(part.Source.X, width)
-		u2 := u(part.Source.X+part.Source.Width, width)
-		v1 := v(part.Source.Y, height)
-		v2 := v(part.Source.Y+part.Source.Height, height)
+		x1 := float32(part.Dst.X)
+		x2 := float32(part.Dst.X + part.Dst.Width)
+		y1 := float32(part.Dst.Y)
+		y2 := float32(part.Dst.Y + part.Dst.Height)
+		u1 := u(part.Src.X, width)
+		u2 := u(part.Src.X+part.Src.Width, width)
+		v1 := v(part.Src.Y, height)
+		v2 := v(part.Src.Y+part.Src.Height, height)
 		quad := shader.TextureQuad{x1, x2, y1, y2, u1, u2, v1, v2}
 		quads = append(quads, quad)
 	}