From abfc73419b5af2a91de4f60ba089c8c367b8b0ce Mon Sep 17 00:00:00 2001 From: Thomas Friedel Date: Thu, 18 Apr 2019 21:13:06 +0200 Subject: [PATCH] set global alpha --- backend/gogl/clip.go | 1 + backend/gogl/fill.go | 1 + 2 files changed, 2 insertions(+) diff --git a/backend/gogl/clip.go b/backend/gogl/clip.go index 7da6254..4979438 100644 --- a/backend/gogl/clip.go +++ b/backend/gogl/clip.go @@ -38,6 +38,7 @@ func (b *GoGLBackend) Clip(pts [][2]float64) { gl.UseProgram(b.sr.ID) gl.Uniform4f(b.sr.Color, 1, 1, 1, 1) gl.Uniform2f(b.sr.CanvasSize, float32(b.fw), float32(b.fh)) + gl.Uniform1f(b.sr.GlobalAlpha, 1) gl.EnableVertexAttribArray(b.sr.Vertex) gl.ColorMask(false, false, false, false) diff --git a/backend/gogl/fill.go b/backend/gogl/fill.go index 77ab226..125321d 100644 --- a/backend/gogl/fill.go +++ b/backend/gogl/fill.go @@ -115,6 +115,7 @@ func (b *GoGLBackend) Fill(style *backendbase.FillStyle, pts [][2]float64) { gl.UseProgram(b.sr.ID) gl.Uniform4f(b.sr.Color, 0, 0, 0, 0) gl.Uniform2f(b.sr.CanvasSize, float32(b.fw), float32(b.fh)) + gl.Uniform1f(b.sr.GlobalAlpha, 1) gl.EnableVertexAttribArray(b.sr.Vertex) gl.VertexAttribPointer(b.sr.Vertex, 2, gl.FLOAT, false, 0, nil)