diff options
| author | David Thompson <dthompson2@worcester.edu> | 2020-04-11 22:55:30 -0400 |
|---|---|---|
| committer | David Thompson <dthompson2@worcester.edu> | 2020-04-11 22:55:30 -0400 |
| commit | d150acec04ddff321caae0cff88f6cc26161417c (patch) | |
| tree | 69f0d388254983e065140cc1a09d189dc01f4c2f /chickadee.scm | |
| parent | 94823dc194ac805939f91a68ca01d9c778f56b2b (diff) | |
render: viewport: Decouple screen clearing from viewport switching.
This makes it possible to a apply a viewport multiple times in a frame
without clearing each time and wiping out part of your work.
Diffstat (limited to 'chickadee.scm')
| -rw-r--r-- | chickadee.scm | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/chickadee.scm b/chickadee.scm index 4edeb03..e7fb443 100644 --- a/chickadee.scm +++ b/chickadee.scm @@ -321,10 +321,8 @@ border is disabled, otherwise it is enabled.") ;; Free any GPU resources that have been GC'd. (gpu-reap!)) (define (render-sdl-opengl alpha) - ;; Switch to the default viewport so we can clear the whole screen. - (set-gpu-viewport! gpu default-viewport) - (gl-clear clear-mask) (with-viewport default-viewport + (clear-screen) (with-projection default-projection (draw alpha))) (sdl2:swap-gl-window window)) |