fixed mirror rendering for goatvr backends which don't use an fbo

diff --git a/src/app.cc b/src/app.cc
index 21e8acc..96e92f3 100644 (file)
--- a/src/app.cc
+++ b/src/app.cc
@@ -426,8 +426,12 @@ void app_display()
                for(int i=0; i<2; i++) {
                        // for each eye
                        goatvr_draw_eye(i);
-                       vp_width = goatvr_get_fb_eye_width(i);
-                       vp_height = goatvr_get_fb_eye_height(i);
+                       if(goatvr_get_fb_texture()) {
+                               vp_width = goatvr_get_fb_eye_width(i);
+                               vp_height = goatvr_get_fb_eye_height(i);
+                       } else {
+                               vp_width = win_width / 2;
+                       }
 
                        proj_matrix = goatvr_projection_matrix(i, NEAR_CLIP, FAR_CLIP);
                        glMatrixMode(GL_PROJECTION);