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egui_glow: clear the post-processing render target (#1658)

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Emil Ernerfeldt 2022-05-21 16:53:05 +02:00 committed by GitHub
parent 32ad9c29be
commit 3d5e203d86
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 7 additions and 3 deletions
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3
egui_demo_lib/src/demo/demo_app_windows.rs
View file

@ -177,8 +177,6 @@ impl DemoWindows {
fn mobile_ui(&mut self, ctx: &Context) {
if self.about_is_open {
egui::CentralPanel::default().show(ctx, |_ui| {}); // just to paint a background for the windows to be on top of. Needed on web because of https://github.com/emilk/egui/issues/1548
let screen_size = ctx.input().screen_rect.size();
let default_width = (screen_size.x - 20.0).min(400.0);
@ -276,7 +274,6 @@ impl DemoWindows {
/// Show the open windows.
fn show_windows(&mut self, ctx: &Context) {
egui::CentralPanel::default().show(ctx, |_ui| {}); // just to paint a background for the windows to be on top of. Needed on web because of https://github.com/emilk/egui/issues/1548
self.about.show(ctx, &mut self.about_is_open);
self.demos.windows(ctx);
self.tests.windows(ctx);

7
egui_glow/src/painter.rs
View file

@ -288,6 +288,7 @@ impl Painter {
(width_in_pixels, height_in_pixels)
}
/// You are expected to have cleared the color buffer before calling this.
pub fn paint_and_update_textures(
&mut self,
screen_size_px: [u32; 2],
@ -308,6 +309,7 @@ impl Painter {
}
/// Main entry-point for painting a frame.
///
/// You should call `target.clear_color(..)` before
/// and `target.finish()` after this.
///
@ -339,6 +341,11 @@ impl Painter {
unsafe {
post_process.begin(screen_size_px[0] as i32, screen_size_px[1] as i32);
post_process.bind();
self.gl.disable(glow::SCISSOR_TEST);
self.gl
.viewport(0, 0, screen_size_px[0] as i32, screen_size_px[1] as i32);
// use the same clear-color as was set for the screen framebuffer.
self.gl.clear(glow::COLOR_BUFFER_BIT);
}
}
let size_in_pixels = unsafe { self.prepare_painting(screen_size_px, pixels_per_point) };