From b3232e9280ff7104d68b7e4f229604f574a4e37a Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Mon, 31 Aug 2009 14:56:34 -0600 Subject: [PATCH] progs/tests: disable depth test for second glDrawPixels We don't want to z-test that glDrawPixels. Also, set the raster color to red when drawing GL_DEPTH_COMPONENT image to aid in debugging. --- progs/tests/zreaddraw.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c index 2cbfeb6ff18..8839e108360 100644 --- a/progs/tests/zreaddraw.c +++ b/progs/tests/zreaddraw.c @@ -24,6 +24,8 @@ static void Display(void) glClearColor(0.5, 0.5, 0.5, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glEnable(GL_DEPTH_TEST); + /* draw a sphere */ glViewport(0, 0, 100, 100); glMatrixMode(GL_PROJECTION); @@ -46,9 +48,12 @@ static void Display(void) /* draw depth image with scaling (into z buffer) */ glPixelZoom(4.0, 4.0); + glColor4f(1, 0, 0, 0); glWindowPos2i(100, 0); glDrawPixels(100, 100, GL_DEPTH_COMPONENT, GL_FLOAT, depth); + glDisable(GL_DEPTH_TEST); + /* read back scaled depth image */ glReadPixels(100, 0, 400, 400, GL_DEPTH_COMPONENT, GL_FLOAT, depth2); /* draw as luminance */ @@ -96,7 +101,6 @@ static void Init(void) glLightfv(GL_LIGHT0, GL_POSITION, pos); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); - glEnable(GL_DEPTH_TEST); } -- 2.30.2