stuff

hui-glium/shaders/fragment.frag

@@ -9,11 +9,5 @@ in vec2 vtx_uv;
 uniform sampler2D tex;
 
 void main() {
-  //HACK: if vtx_uv is (0, 0) then the texture is not used
-  //disabling this will cause blinking
-  if (vtx_uv.x == 0.0 && vtx_uv.y == 0.0) {
-    out_color = vtx_color;
-    return;
-  }
   out_color = texture(tex, vtx_uv) * vtx_color;
 }

hui/src/draw.rs

@@ -165,6 +165,7 @@ impl UiDrawCall {
             .map(|x| atlas.get_uv(x))
             .flatten()
             .unwrap_or(Corners::all(Vec2::ZERO));
+
           let vidx = draw_call.vertices.len() as u32;
           if let Some(corner) = rounded_corners.filter(|x| x.radius.max_f32() > 0.0) {
             //this code is stupid as fuck

hui/src/draw/atlas.rs

@@ -219,6 +219,14 @@ impl TextureAtlasManager {
     }
   }
 
+  pub(crate) fn add_dummy(&mut self) {
+    let handle = self.allocate((1, 1).into());
+    assert!(handle.index == 0, "Dummy texture handle is not 0");
+    assert!(self.get(handle).unwrap().position == (0, 0).into(), "Dummy texture position is not (0, 0)");
+    self.data[0..4].copy_from_slice(&[255, 255, 255, 255]);
+    self.modified = true;
+  }
+
   pub fn modify(&mut self, handle: ImageHandle) {
     todo!()
   }

hui/src/instance.rs

@@ -43,8 +43,7 @@ impl UiInstance {
       text_renderer: TextRenderer::new(),
       atlas: {
         let mut atlas = TextureAtlasManager::default();
-        //HACK: Ensure that vec(0, 0) uv is white square
+        atlas.add_dummy();
-        atlas.add_rgba(1, &[255, 255, 255, 255]);
         atlas
       },
       events: EventQueue::new(),