[glow] fix clipping bug (#2902)

Now you can be blinded by the sun:

![image](https://github.com/open-goal/jak-project/assets/48171810/caf3903c-8333-4daa-89ba-ff83ca7d6b2f)

game/graphics/opengl_renderer/sprite/GlowRenderer.cpp

@@ -241,7 +241,9 @@ void copy_to_vertex(GlowRenderer::Vertex* vtx, const Vector4f& xyzw) {
   vtx->x = xyzw.x();
   vtx->y = xyzw.y();
   vtx->z = xyzw.z();
-  vtx->w = xyzw.w();
+  // ignore the w computed by the game, and just use 1. The game's VU program ignores this value,
+  // and we need to set w = 1 to get the correct opengl clipping behavior
+  vtx->w = 1;
 }
 }  // namespace