diff --git a/image.go b/image.go
index 00b8b07e4..d631afe15 100644
--- a/image.go
+++ b/image.go
@@ -147,7 +147,7 @@ func (i *Image) At(x, y int) color.Color {
 	if i.pixels == nil {
 		ui.Use(func(c *opengl.Context) {
 			var err error
-			i.pixels, err = i.texture.Pixels(c)
+			i.pixels, err = i.framebuffer.Pixels(c)
 			if err != nil {
 				panic(err)
 			}
diff --git a/image_test.go b/image_test.go
index e81cc0f08..a9bd1a133 100644
--- a/image_test.go
+++ b/image_test.go
@@ -168,7 +168,7 @@ func TestImageDotByDotInversion(t *testing.T) {
 			c0 := img0.At(i, j).(color.RGBA)
 			c1 := img1.At(w-i-1, h-j-1).(color.RGBA)
 			if c0 != c1 {
-				t.Errorf("c0 should equal to c1 but not: c0: %v, c1: %v", c0, c1)
+				t.Errorf("img0.At(%[1]d, %[2]d) should equal to img1.At(%[1]d, %[2]d) but not: %[3]v vs %[4]v", i, j, c0, c1)
 			}
 		}
 	}
diff --git a/internal/graphics/framebuffer.go b/internal/graphics/framebuffer.go
index d648f1a95..b61da912b 100644
--- a/internal/graphics/framebuffer.go
+++ b/internal/graphics/framebuffer.go
@@ -141,3 +141,9 @@ func (f *Framebuffer) FillRects(c *opengl.Context, rects Rects) error {
 	p := f.projectionMatrix()
 	return shader.FillRects(c, p, rects)
 }
+
+func (f *Framebuffer) Pixels(c *opengl.Context) ([]uint8, error) {
+	w, h := f.Size()
+	w, h = internal.NextPowerOf2Int(w), internal.NextPowerOf2Int(h)
+	return c.FramebufferPixels(f.native, w, h)
+}
diff --git a/internal/graphics/texture.go b/internal/graphics/texture.go
index 31e3e48a6..93cc69df3 100644
--- a/internal/graphics/texture.go
+++ b/internal/graphics/texture.go
@@ -90,8 +90,3 @@ func NewTextureFromImage(c *opengl.Context, img image.Image, filter opengl.Filte
 func (t *Texture) Dispose(c *opengl.Context) {
 	c.DeleteTexture(t.native)
 }
-
-func (t *Texture) Pixels(c *opengl.Context) ([]uint8, error) {
-	w, h := internal.NextPowerOf2Int(t.width), internal.NextPowerOf2Int(t.height)
-	return c.TexturePixels(t.native, w, h)
-}
diff --git a/internal/opengl/context.go b/internal/opengl/context.go
index 23b2916dd..1111d0bc2 100644
--- a/internal/opengl/context.go
+++ b/internal/opengl/context.go
@@ -84,12 +84,13 @@ func (c *Context) NewTexture(width, height int, pixels []uint8, filter Filter) (
 	return Texture(t), nil
 }
 
-func (c *Context) TexturePixels(t Texture, width, height int) ([]uint8, error) {
+func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]uint8, error) {
 	gl.Flush()
-	// TODO: Use glGetTexLevelParameteri and GL_TEXTURE_WIDTH?
+
+	gl.Framebuffer(f).Bind()
+
 	pixels := make([]uint8, 4*width*height)
-	gl.Texture(t).Bind(gl.TEXTURE_2D)
-	gl.GetTexImage(gl.TEXTURE_2D, 0, gl.RGBA, gl.UNSIGNED_BYTE, pixels)
+	gl.ReadPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, pixels)
 	if e := gl.GetError(); e != gl.NO_ERROR {
 		return nil, errors.New(fmt.Sprintf("gl error: %d", e))
 	}
diff --git a/internal/opengl/context_js.go b/internal/opengl/context_js.go
index 581da7d1e..4e93c0955 100644
--- a/internal/opengl/context_js.go
+++ b/internal/opengl/context_js.go
@@ -64,6 +64,8 @@ type context struct {
 	gl *webgl.Context
 }
 
+var lastFramebuffer Framebuffer
+
 func NewContext(gl *webgl.Context) *Context {
 	c := &Context{
 		Nearest:            Filter(gl.NEAREST),
@@ -113,12 +115,14 @@ func (c *Context) NewTexture(width, height int, pixels []uint8, filter Filter) (
 	return Texture{t}, nil
 }
 
-func (c *Context) TexturePixels(t Texture, width, height int) ([]uint8, error) {
+func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]uint8, error) {
 	gl := c.gl
 	gl.Flush()
-	// TODO: Use glGetTexLevelParameteri and GL_TEXTURE_WIDTH?
+
+	lastFramebuffer = Framebuffer{nil}
+	gl.BindFramebuffer(gl.FRAMEBUFFER, f.Object)
+
 	pixels := js.Global.Get("Uint8Array").New(4 * width * height)
-	gl.BindTexture(gl.TEXTURE_2D, t.Object)
 	gl.ReadPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, pixels)
 	if e := gl.GetError(); e != gl.NO_ERROR {
 		return nil, errors.New(fmt.Sprintf("gl error: %d", e))
@@ -148,6 +152,7 @@ func (c *Context) GlslHighpSupported() bool {
 func (c *Context) NewFramebuffer(t Texture) (Framebuffer, error) {
 	gl := c.gl
 	f := gl.CreateFramebuffer()
+	lastFramebuffer = Framebuffer{nil}
 	gl.BindFramebuffer(gl.FRAMEBUFFER, f)
 
 	gl.FramebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, t.Object, 0)
@@ -158,8 +163,6 @@ func (c *Context) NewFramebuffer(t Texture) (Framebuffer, error) {
 	return Framebuffer{f}, nil
 }
 
-var lastFramebuffer Framebuffer
-
 func (c *Context) SetViewport(f Framebuffer, width, height int) error {
 	gl := c.gl
 	// TODO: Fix this after the GopherJS bug was fixed (#159)