diff --git a/Engine/gapi/metal/mtcommandbuffer.cpp b/Engine/gapi/metal/mtcommandbuffer.cpp
index 137d858a..eb054f1f 100644
--- a/Engine/gapi/metal/mtcommandbuffer.cpp
+++ b/Engine/gapi/metal/mtcommandbuffer.cpp
@@ -313,6 +313,11 @@ void MtCommandBuffer::drawIndexed(const AbstractGraphicsApi::Buffer& ivbo, size_
                                  ioffset*mul,instanceCount,voffset,firstInstance);
   }
 
+void MtCommandBuffer::drawIndirect(const AbstractGraphicsApi::Buffer& indirect, size_t offset) {
+  auto& ind = reinterpret_cast<const MtBuffer&>(indirect);
+  encDraw->drawPrimitives(topology, ind.impl.get(), offset);
+  }
+
 void MtCommandBuffer::dispatchMesh(size_t x, size_t y, size_t z) {
   // NOTE: for taskless pipeline `localSize` must be zero
   encDraw->drawMeshThreadgroups(MTL::Size(x,y,z), localSize, localSizeMesh);
diff --git a/Engine/gapi/metal/mtcommandbuffer.h b/Engine/gapi/metal/mtcommandbuffer.h
index 2435d0fe..d49e83cf 100644
--- a/Engine/gapi/metal/mtcommandbuffer.h
+++ b/Engine/gapi/metal/mtcommandbuffer.h
@@ -55,6 +55,9 @@ class MtCommandBuffer : public AbstractGraphicsApi::CommandBuffer {
     void drawIndexed (const AbstractGraphicsApi::Buffer& vbo, size_t stride, size_t voffset,
                       const AbstractGraphicsApi::Buffer &ibo, Detail::IndexClass cls,
                       size_t ioffset, size_t isize, size_t firstInstance, size_t instanceCount) override;
+
+    void drawIndirect(const AbstractGraphicsApi::Buffer& indirect, size_t offset) override;
+
     void dispatchMesh(size_t x, size_t y, size_t z) override;
     void dispatch    (size_t x, size_t y, size_t z) override;
 
diff --git a/Engine/gapi/metal/mtdescriptorarray.cpp b/Engine/gapi/metal/mtdescriptorarray.cpp
index 7fa06928..4cfb95e3 100644
--- a/Engine/gapi/metal/mtdescriptorarray.cpp
+++ b/Engine/gapi/metal/mtdescriptorarray.cpp
@@ -56,6 +56,7 @@ void MtDescriptorArray::set(size_t id, AbstractGraphicsApi::Texture** tex, size_
 
   std::unique_ptr<uint8_t[]> addr(new uint8_t[bufSz]);
   d.args.reserve(cnt);
+  d.args.clear();
   for(size_t i=0; i<cnt; ++i) {
     auto* ptr = reinterpret_cast<MTL::ResourceID*>(addr.get());
     if(tex[i]==nullptr) {
@@ -91,6 +92,7 @@ void MtDescriptorArray::set(size_t id, AbstractGraphicsApi::Buffer** buf, size_t
 
   std::unique_ptr<spvBufferDescriptor[]> addr(new spvBufferDescriptor[cnt]);
   d.args.reserve(cnt);
+  d.args.clear();
   for(size_t i=0; i<cnt; ++i) {
     if(buf[i]==nullptr) {
       addr[i].ptr = 0;