diff --git a/vulkan-rs/src/shadermodule.rs b/vulkan-rs/src/shadermodule.rs
index 429d953..36c72fa 100644
--- a/vulkan-rs/src/shadermodule.rs
+++ b/vulkan-rs/src/shadermodule.rs
@@ -24,18 +24,25 @@ pub enum ShaderType {
     Intersection,
 }
 
-impl ShaderType {
-    pub const VERTEX: u8 = Self::Vertex as u8;
-    pub const FRAGMENT: u8 = Self::Fragment as u8;
-    pub const GEOMETRY: u8 = Self::Geometry as u8;
-    pub const TESSELATION_CONTROL: u8 = Self::TesselationControl as u8;
-    pub const TESSELATION_EVALUATION: u8 = Self::TesselationEvaluation as u8;
-    pub const COMPUTE: u8 = Self::Compute as u8;
-    pub const RAY_GENERATION: u8 = Self::RayGeneration as u8;
-    pub const CLOSEST_HIT: u8 = Self::ClosestHit as u8;
-    pub const MISS: u8 = Self::Miss as u8;
-    pub const ANY_HIT: u8 = Self::AnyHit as u8;
-    pub const INTERSECTION: u8 = Self::Intersection as u8;
+impl From<u8> for ShaderType {
+    fn from(value: u8) -> Self {
+        match value {
+            0 => Self::None,
+            1 => Self::Vertex,
+            2 => Self::Fragment,
+            3 => Self::Geometry,
+            4 => Self::TesselationControl,
+            5 => Self::TesselationEvaluation,
+            6 => Self::Compute,
+            7 => Self::RayGeneration,
+            8 => Self::ClosestHit,
+            9 => Self::Miss,
+            10 => Self::AnyHit,
+            11 => Self::Intersection,
+
+            _ => panic!("can't convert ShaderType from {}", value),
+        }
+    }
 }
 
 impl Default for ShaderType {