diff options
| -rw-r--r-- | main_glut.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/main_glut.c b/main_glut.c index cf22a73..92e3fdb 100644 --- a/main_glut.c +++ b/main_glut.c @@ -5,6 +5,7 @@ #include "ray.h" static int threaded; +static int viewport_width, viewport_height; static int init(int argc, char **argv, int w, int h) { @@ -32,6 +33,8 @@ display(void) { unsigned char* buffer = calloc(4, WIDTH * HEIGHT); trace_scene(time, buffer, threaded); + glClear(GL_COLOR_BUFFER_BIT); + glRasterPos2d(-(double)WIDTH / viewport_width, -(double)HEIGHT / viewport_height); glDrawPixels(WIDTH, HEIGHT, GL_BGRA, GL_UNSIGNED_BYTE, buffer); free(buffer); @@ -40,6 +43,8 @@ display(void) { static void reshape(int w, int h) { + viewport_width = w; + viewport_height = h; glViewport(0, 0, w, h); } |