Mesh shape 3D creation improvement

supernovaengine · Oct 27, 2023 · 2c70d65 · 2c70d65
1 parent b63b81d
commit 2c70d65
Showing 1 changed file with 33 additions and 14 deletions.
diff --git a/engine/core/subsystem/PhysicsSystem.cpp b/engine/core/subsystem/PhysicsSystem.cpp
@@ -490,23 +490,42 @@ void PhysicsSystem::createMeshShape3D(Entity entity, MeshComponent& mesh){
 
     if (body){
 
-        JPH::VertexList jvertices;
-        int verticesize = int(mesh.buffer.getCount());
-		jvertices.resize(verticesize);
-        Attribute* attVertex = mesh.buffer.getAttribute(AttributeType::POSITION);
-        for (int i = 0; i < verticesize; i++){
-            Vector3 vertice = mesh.buffer.getVector3(attVertex, i);
-            jvertices[i] = JPH::Float3(vertice.x, vertice.y, vertice.z);
+        std::map<std::string, Buffer*> buffers;
+
+        if (mesh.buffer.getSize() > 0){
+            buffers["vertices"] = &mesh.buffer;
+        }
+        if (mesh.indices.getSize() > 0){
+            buffers["indices"] = &mesh.indices;
+        }
+        for (int i = 0; i < mesh.numExternalBuffers; i++){
+            buffers[mesh.eBuffers[i].getName()] = &mesh.eBuffers[i];
         }
 
         JPH::IndexedTriangleList jindices;
-        int indicesize = int(mesh.indices.getCount() / 3);
-		jindices.resize(indicesize);
-        Attribute* attIndex = mesh.indices.getAttribute(AttributeType::INDEX);
-        for (int i = 0; i < indicesize; i++){
-            for (int j = 0; j < 3; j++){
-                uint16_t indice = mesh.indices.getUInt16(attIndex, (3*i)+j);
-                jindices[i].mIdx[j] = indice;
+        JPH::VertexList jvertices;
+
+        for (auto const& buf : buffers){
+            if (buf.second->isRenderAttributes()) {
+                if (buf.second->getType() == BufferType::INDEX_BUFFER){
+                    int indicesize = int(buf.second->getCount() / 3);
+                    jindices.resize(indicesize);
+                    Attribute* attIndex = buf.second->getAttribute(AttributeType::INDEX);
+                    for (int i = 0; i < indicesize; i++){
+                        for (int j = 0; j < 3; j++){
+                            uint16_t indice = buf.second->getUInt16(attIndex, (3*i)+j);
+                            jindices[i].mIdx[j] = indice;
+                        }
+                    }
+                }else{
+                    int verticesize = int(buf.second->getCount());
+                    jvertices.resize(verticesize);
+                    Attribute* attVertex = buf.second->getAttribute(AttributeType::POSITION);
+                    for (int i = 0; i < verticesize; i++){
+                        Vector3 vertice = buf.second->getVector3(attVertex, i);
+                        jvertices[i] = JPH::Float3(vertice.x, vertice.y, vertice.z);
+                    }
+                }
             }
         }