Fix embree build

Author: Speierers

src/librender/scene_embree.inl

@@ -39,8 +39,6 @@ MTS_VARIANT void Scene<Float, Spectrum>::accel_init_cpu(const Properties &/*prop
 }
 
 MTS_VARIANT void Scene<Float, Spectrum>::accel_release_cpu() {
-    for (Shape *shapegroup : m_shapegroups)
-        shapegroup->release_embree_scene();
     rtcReleaseScene((RTCScene) m_accel);
 }
 

src/librender/shape.cpp

@@ -249,14 +249,6 @@ MTS_VARIANT RTCGeometry Shape<Float, Spectrum>::embree_geometry(RTCDevice device
         Throw("embree_geometry() should only be called in CPU mode.");
     }
 }
-
-MTS_VARIANT void Shape<Float, Spectrum>::init_embree_scene(RTCDevice /*device*/){
-   NotImplementedError("init_embree_scene");
-}
-
-MTS_VARIANT void Shape<Float, Spectrum>::release_embree_scene(){
-   NotImplementedError("release_embree_scene");
-}
 #endif
 
 #if defined(MTS_ENABLE_OPTIX)

src/librender/shapegroup.cpp

@@ -54,7 +54,7 @@ MTS_VARIANT ShapeGroup<Float, Spectrum>::~ShapeGroup() {
 }
 
 #if defined(MTS_ENABLE_EMBREE)
-MTS_VARIANT RTCGeometry ShapeGroup<Float, Spectrum>::embree_geometry(RTCDevice device) override {
+MTS_VARIANT RTCGeometry ShapeGroup<Float, Spectrum>::embree_geometry(RTCDevice device) {
     if constexpr (!is_cuda_array_v<Float>) {
         // Construct the BVH only once
         if (m_embree_scene == nullptr) {