2 files changed, 66 insertions, 2 deletions
diff --git a/engine/src/renderer/opengl/glsl/light.glsl b/engine/src/renderer/opengl/glsl/light.glsl
index 1bc23a4..f12b5fe 100644
--- a/engine/src/renderer/opengl/glsl/light.glsl
+++ b/engine/src/renderer/opengl/glsl/light.glsl
@@ -80,10 +80,10 @@ vec3 calc_specular_light(
 {
 	vec3 view_direction = normalize(view_pos - frag_pos);
 
-	vec3 reflect_direction = reflect(-light_dir, norm);
+	vec3 halfway_direction = normalize(light_dir + view_direction);
 
 	float spec =
-		pow(max(dot(view_direction, reflect_direction), 0.0), material.shininess);
+		pow(max(dot(norm, halfway_direction), 0.0), material.shininess);
 
 	return light_phong.specular * (
 		spec * (vec3(texture(material.specular_map, texture_coords)) * material.specular)
diff --git a/engine/src/renderer/opengl/vertex.rs b/engine/src/renderer/opengl/vertex.rs
new file mode 100644
index 0000000..499b94b
--- /dev/null
+++ b/engine/src/renderer/opengl/vertex.rs
@@ -0,0 +1,64 @@
+use crate::vector::{Vec2, Vec3};
+
+#[derive(Debug, Clone)]
+#[repr(C)]
+pub struct Vertex
+{
+    pub pos: Vec3<f32>,
+    pub texture_coords: Vec2<f32>,
+    pub normal: Vec3<f32>,
+}
+
+impl Vertex
+{
+    pub fn attrs() -> &'static [Attribute]
+    {
+        #[allow(clippy::cast_possible_truncation)]
+        &[
+            Attribute {
+                index: 0,
+                component_type: AttributeComponentType::Float,
+                component_cnt: AttributeComponentCnt::Three,
+                component_size: size_of::<f32>() as u32,
+            },
+            Attribute {
+                index: 1,
+                component_type: AttributeComponentType::Float,
+                component_cnt: AttributeComponentCnt::Two,
+                component_size: size_of::<f32>() as u32,
+            },
+            Attribute {
+                index: 2,
+                component_type: AttributeComponentType::Float,
+                component_cnt: AttributeComponentCnt::Three,
+                component_size: size_of::<f32>() as u32,
+            },
+        ]
+    }
+}
+
+#[derive(Debug)]
+pub struct Attribute
+{
+    pub index: u32,
+    pub component_type: AttributeComponentType,
+    pub component_cnt: AttributeComponentCnt,
+    pub component_size: u32,
+}
+
+#[derive(Debug)]
+pub enum AttributeComponentType
+{
+    Float,
+}
+
+#[derive(Debug, Clone, Copy)]
+#[repr(u32)]
+#[allow(dead_code)]
+pub enum AttributeComponentCnt
+{
+    One = 1,
+    Two = 2,
+    Three = 3,
+    Four = 4,
+}