diff --git a/libautoscoper/src/gpu/opencl/OpenCL.cpp b/libautoscoper/src/gpu/opencl/OpenCL.cpp
index 986773ec..4ded3d98 100644
--- a/libautoscoper/src/gpu/opencl/OpenCL.cpp
+++ b/libautoscoper/src/gpu/opencl/OpenCL.cpp
@@ -789,6 +789,19 @@ void Kernel::grid2d(size_t X, size_t Y)
   grid_[1] = Y * block_[1];
 }
 
+void Kernel::grid3d(size_t X, size_t Y, size_t Z) {
+  if (grid_dim_ && (grid_dim_ != 3)) {
+    ERROR("Grid dimension was already set and is not 3");
+  } else if (!block_dim_) {
+    ERROR("Must set block dimension before grid");
+  } else {
+    grid_dim_ = 3;
+  }
+  grid_[0] = X * block_[0];
+  grid_[1] = Y * block_[1];
+  grid_[2] = Z * block_[2];
+}
+
 void Kernel::block1d(size_t X)
 {
   if (block_dim_ && (block_dim_ != 1)) {
@@ -810,6 +823,18 @@ void Kernel::block2d(size_t X, size_t Y)
   block_[1] = Y;
 }
 
+void Kernel::block3d(size_t X, size_t Y, size_t Z)
+{
+  if (block_dim_ && (block_dim_ != 3)) {
+    ERROR("Block dimension was already set and is not 3");
+  } else {
+    block_dim_ = 3;
+  }
+  block_[0] = X;
+  block_[1] = Y;
+  block_[2] = Z;
+}
+
 void Kernel::addBufferArg(const Buffer* buf)
 {
   err_ = clSetKernelArg(kernel_, arg_index_++, sizeof(cl_mem), &buf->buffer_);
diff --git a/libautoscoper/src/gpu/opencl/OpenCL.hpp b/libautoscoper/src/gpu/opencl/OpenCL.hpp
index 0a4dfa24..cc94fba9 100644
--- a/libautoscoper/src/gpu/opencl/OpenCL.hpp
+++ b/libautoscoper/src/gpu/opencl/OpenCL.hpp
@@ -86,6 +86,8 @@ class Kernel
   void block1d(size_t X);
   void grid2d(size_t X, size_t Y);
   void block2d(size_t X, size_t Y);
+  void grid3d(size_t X, size_t Y, size_t Z);
+  void block3d(size_t X, size_t Y, size_t Z);
   void launch();
 
   void addBufferArg(const Buffer* buf);