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Avoid relying origin_upper_left

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It seems to cause considerable glitches when resizing.
This commit is contained in:
Héctor Ramón Jiménez 2020-05-21 01:01:47 +02:00
parent e0e4ee73fe
commit d77492c0c3
2 changed files with 17 additions and 3 deletions
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11
glow/src/quad.rs
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@ -12,6 +12,7 @@ pub struct Pipeline {
instances: <glow::Context as HasContext>::Buffer,
current_transform: Transformation,
current_scale: f32,
current_target_height: u32,
}
impl Pipeline {
@ -35,6 +36,7 @@ impl Pipeline {
&Transformation::identity().into(),
);
gl.uniform_1_f32(Some(1), 1.0);
gl.uniform_1_f32(Some(2), 0.0);
gl.use_program(None);
}
@ -48,6 +50,7 @@ impl Pipeline {
instances,
current_transform: Transformation::identity(),
current_scale: 1.0,
current_target_height: 0,
}
}
@ -94,6 +97,14 @@ impl Pipeline {
self.current_scale = scale;
}
if target_height != self.current_target_height {
unsafe {
gl.uniform_1_f32(Some(2), target_height as f32);
}
self.current_target_height = target_height;
}
let mut i = 0;
let total = instances.len();