From d59a182448f285685d83b61e5d6092bb70a66ac1 Mon Sep 17 00:00:00 2001
From: ghostly_zsh <pokeball.181818@gmail.com>
Date: Fri, 21 Mar 2025 17:05:17 -0500
Subject: [PATCH] rendering with egui and glow works

---
 crates/client/src/rendering/mod.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/crates/client/src/rendering/mod.rs b/crates/client/src/rendering/mod.rs
index d7fe0ffd1e690fcb473c4fa9f38c5a2b02e29825..97ee2545f838c5802ac239c5d98c10f7187b5003 100644
--- a/crates/client/src/rendering/mod.rs
+++ b/crates/client/src/rendering/mod.rs
@@ -26,6 +26,7 @@ pub struct App {
     vertex_array: Option<glow::VertexArray>,
     vertex_buffer: Option<glow::Buffer>,
     element_buffer: Option<glow::Buffer>,
+    texture_object: Option<glow::Texture>,
     #[cfg(not(target_arch = "wasm32"))]
     gl_surface: Option<Surface<WindowSurface>>,
     #[cfg(not(target_arch = "wasm32"))]
@@ -165,13 +166,16 @@ impl ApplicationHandler for App {
                 glow::UNSIGNED_BYTE, PixelUnpackData::Slice(Some(&image.into_raw())));
             gl.generate_mipmap(glow::TEXTURE_2D);
 
-            gl.clear_color(1.0, 1.0, 1.0, 1.0);
+            gl.clear_color(0.0, 0.0, 0.0, 0.0);
             gl.viewport(0, 0, window.inner_size().width as i32, window.inner_size().height as i32);
+            gl.enable(glow::BLEND);
+            gl.blend_func(glow::SRC_ALPHA, glow::ONE_MINUS_SRC_ALPHA);
 
             self.program = Some(program);
             self.vertex_array = Some(vertex_array);
             self.vertex_buffer = Some(vertex_buffer);
             self.element_buffer = Some(element_buffer);
+            self.texture_object = Some(texture);
         }
         #[cfg(target_arch = "wasm32")]
         web_sys::window().unwrap().set_onresize(Some(Closure::<dyn Fn(Event)>::new(move |_| {
@@ -221,9 +225,12 @@ impl ApplicationHandler for App {
 
                 unsafe {
                     gl.clear(glow::COLOR_BUFFER_BIT);
+                    gl.use_program(self.program);
+                    gl.active_texture(glow::TEXTURE0);
+                    gl.bind_texture(glow::TEXTURE_2D, self.texture_object);
+                    gl.bind_vertex_array(self.vertex_array);
                     gl.bind_buffer(glow::ARRAY_BUFFER, self.vertex_buffer);
                     gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, self.element_buffer);
-                    gl.bind_vertex_array(self.vertex_array);
                     gl.draw_elements(glow::TRIANGLES, 6, glow::UNSIGNED_INT, 0);
                 }