fix color masking in Canvas.Clear

2017-03-08 15:02:40 +01:00 · 2017-03-08 15:02:40 +01:00 · 907082326f
parent 43aae3d3bd
commit 907082326f
1 changed files with 8 additions and 0 deletions
--- a/pixelgl/canvas.go
+++ b/pixelgl/canvas.go
@ -219,6 +219,14 @@ func (c *Canvas) Clear(color color.Color) {

 	nrgba := pixel.NRGBAModel.Convert(color).(pixel.NRGBA)

+	// color masking
+	nrgba = nrgba.Mul(pixel.NRGBA{
+		R: float64(c.col[0]),
+		G: float64(c.col[1]),
+		B: float64(c.col[2]),
+		A: float64(c.col[3]),
+	})
+
 	mainthread.CallNonBlock(func() {
 		c.setGlhfBounds()
 		c.f.Begin()