diff --git a/src/draw.cpp b/src/draw.cpp
index ee3966b2..907ca004 100644
--- a/src/draw.cpp
+++ b/src/draw.cpp
@@ -845,7 +845,7 @@ void GraphicsWindow::Paint() {
 
     canvas->SetLighting(lighting);
     canvas->SetCamera(camera);
-    canvas->NewFrame();
+    canvas->StartFrame();
     Draw(canvas.get());
     canvas->FlushFrame();
 
@@ -902,6 +902,7 @@ void GraphicsWindow::Paint() {
                             5, 5, renderTimeColor);
 
     canvas->FlushFrame();
+    canvas->FinishFrame();
     canvas->Clear();
 }
 
diff --git a/src/platform/entrycli.cpp b/src/platform/entrycli.cpp
index b6e1cc01..c9efbf1a 100644
--- a/src/platform/entrycli.cpp
+++ b/src/platform/entrycli.cpp
@@ -208,9 +208,10 @@ static bool RunCommand(const std::vector<std::string> args) {
             pixmapCanvas.SetCamera(camera);
             pixmapCanvas.Init();
 
-            pixmapCanvas.NewFrame();
+            pixmapCanvas.StartFrame();
             SS.GW.Draw(&pixmapCanvas);
             pixmapCanvas.FlushFrame();
+            pixmapCanvas.FinishFrame();
             pixmapCanvas.ReadFrame()->WritePng(output, /*flip=*/true);
 
             pixmapCanvas.Clear();
diff --git a/src/render/render.h b/src/render/render.h
index 5c77ebf5..825ca8d1 100644
--- a/src/render/render.h
+++ b/src/render/render.h
@@ -186,8 +186,9 @@ public:
     virtual void SetCamera(const Camera &camera) = 0;
     virtual void SetLighting(const Lighting &lighting) = 0;
 
-    virtual void NewFrame() = 0;
+    virtual void StartFrame() = 0;
     virtual void FlushFrame() = 0;
+    virtual void FinishFrame() = 0;
     virtual std::shared_ptr<Pixmap> ReadFrame() = 0;
 
     virtual void GetIdent(const char **vendor, const char **renderer, const char **version) = 0;
@@ -342,8 +343,9 @@ public:
 
     void Clear() override;
 
-    void NewFrame() override {}
+    void StartFrame() override {}
     void FlushFrame() override;
+    void FinishFrame() override {}
     std::shared_ptr<Pixmap> ReadFrame() override;
 
     void GetIdent(const char **vendor, const char **renderer, const char **version) override;
diff --git a/src/render/rendergl1.cpp b/src/render/rendergl1.cpp
index f0d41309..070b605e 100644
--- a/src/render/rendergl1.cpp
+++ b/src/render/rendergl1.cpp
@@ -220,8 +220,9 @@ public:
     void SetCamera(const Camera &camera) override;
     void SetLighting(const Lighting &lighting) override;
 
-    void NewFrame() override;
+    void StartFrame() override;
     void FlushFrame() override;
+    void FinishFrame() override;
     std::shared_ptr<Pixmap> ReadFrame() override;
 
     void GetIdent(const char **vendor, const char **renderer, const char **version) override;
@@ -751,7 +752,7 @@ void OpenGl1Renderer::UpdateProjection() {
     glClear(GL_DEPTH_BUFFER_BIT);
 }
 
-void OpenGl1Renderer::NewFrame() {
+void OpenGl1Renderer::StartFrame() {
     glEnable(GL_NORMALIZE);
 
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -806,6 +807,7 @@ void OpenGl1Renderer::NewFrame() {
 
 void OpenGl1Renderer::FlushFrame() {
     UnSelectPrimitive();
+
     glFlush();
 
     GLenum error = glGetError();
@@ -814,6 +816,10 @@ void OpenGl1Renderer::FlushFrame() {
     }
 }
 
+void OpenGl1Renderer::FinishFrame() {
+    glFinish();
+}
+
 std::shared_ptr<Pixmap> OpenGl1Renderer::ReadFrame() {
     int width  = camera.width  * camera.pixelRatio;
     int height = camera.height * camera.pixelRatio;
diff --git a/src/render/rendergl3.cpp b/src/render/rendergl3.cpp
index 61e1084d..592a3445 100644
--- a/src/render/rendergl3.cpp
+++ b/src/render/rendergl3.cpp
@@ -134,8 +134,9 @@ public:
     void SetCamera(const Camera &c) override;
     void SetLighting(const Lighting &l) override;
 
-    void NewFrame() override;
+    void StartFrame() override;
     void FlushFrame() override;
+    void FinishFrame() override;
     void Clear() override;
     std::shared_ptr<Pixmap> ReadFrame() override;
 
@@ -618,7 +619,7 @@ void OpenGl3Renderer::UpdateProjection() {
     glClear(GL_DEPTH_BUFFER_BIT);
 }
 
-void OpenGl3Renderer::NewFrame() {
+void OpenGl3Renderer::StartFrame() {
     if(!initialized) {
         Init();
         initialized = true;
@@ -667,7 +668,7 @@ void OpenGl3Renderer::FlushFrame() {
     }
     points.Clear();
 
-    glFinish();
+    glFlush();
 
     GLenum error = glGetError();
     if(error != GL_NO_ERROR) {
@@ -675,6 +676,10 @@ void OpenGl3Renderer::FlushFrame() {
     }
 }
 
+void OpenGl3Renderer::FinishFrame() {
+    glFinish();
+}
+
 void OpenGl3Renderer::Clear() {
     ViewportCanvas::Clear();
     pixmapCache.CleanupUnused();
diff --git a/src/textwin.cpp b/src/textwin.cpp
index 1406a3e7..2a7b3ebf 100644
--- a/src/textwin.cpp
+++ b/src/textwin.cpp
@@ -924,7 +924,7 @@ void TextWindow::Paint() {
 
     canvas->SetLighting(lighting);
     canvas->SetCamera(camera);
-    canvas->NewFrame();
+    canvas->StartFrame();
 
     UiCanvas uiCanvas = {};
     uiCanvas.canvas = canvas;
@@ -1041,6 +1041,7 @@ void TextWindow::Paint() {
     DrawOrHitTestColorPicker(&uiCanvas, PAINT, false, 0, 0);
 
     canvas->FlushFrame();
+    canvas->FinishFrame();
     canvas->Clear();
 }
 
diff --git a/test/harness.cpp b/test/harness.cpp
index 1927ca2a..60124258 100644
--- a/test/harness.cpp
+++ b/test/harness.cpp
@@ -255,9 +255,10 @@ bool Test::Helper::CheckRender(const char *file, int line, const char *reference
     pixmapCanvas.SetCamera(camera);
     pixmapCanvas.Init();
 
-    pixmapCanvas.NewFrame();
+    pixmapCanvas.StartFrame();
     SS.GW.Draw(&pixmapCanvas);
     pixmapCanvas.FlushFrame();
+    pixmapCanvas.FinishFrame();
     std::shared_ptr<Pixmap> frame = pixmapCanvas.ReadFrame();
 
     pixmapCanvas.Clear();