diff --git a/vulkan_shader/rt/camera.rmiss b/vulkan_shader/rt/camera.rmiss
index 27a16266..1676d3e4 100644
--- a/vulkan_shader/rt/camera.rmiss
+++ b/vulkan_shader/rt/camera.rmiss
@@ -12,7 +12,8 @@ void main() {
   vec3 dir = ray.direction;
   dir = vec3(-dir.y, dir.z, -dir.x);
   if (envmap != 0) {
-    ray.radiance = texture(samplerEnvironment, dir).xyz;
+    // FIXME: super high values seem to cause nan
+    ray.radiance = clamp(texture(samplerEnvironment, dir).xyz, vec3(0,0,0), vec3(100, 100, 100));
   } else {
     ray.radiance = ambientLight;
   }