diff --git a/src/engine/modules/vif_sender.cpp b/src/engine/modules/vif_sender.cpp
index 2215685..394c653 100644
--- a/src/engine/modules/vif_sender.cpp
+++ b/src/engine/modules/vif_sender.cpp
@@ -157,13 +157,15 @@ void VifSender::drawVertices(Mesh &t_mesh, u32 t_start, u32 t_end, VECTOR *t_ver
 
 void VifSender::drawTheSameWithOtherMatrices(const RenderData &t_renderData, Mesh **t_meshes, const u32 &t_skip, const u32 &t_count)
 {
+    // Standard double buffering (packets)
     packet2_t *packet1 = packet2_create(300, P2_TYPE_NORMAL, P2_MODE_CHAIN, true);
     packet2_t *packet2 = packet2_create(300, P2_TYPE_NORMAL, P2_MODE_CHAIN, true);
     packet2_t *currMPacket = packet1;
     u8 currPacketIndex = 1;
+
+    // We are sending 32 matrices max per one VU1 send
     u8 switchCounter = 0;
-    u32 i;
-    for (i = t_skip; i < t_count; i++)
+    for (u32 i = t_skip; i < t_count; i++)
     {
         model.identity();
         model.rotate(t_meshes[i]->rotation);
@@ -187,7 +189,8 @@ void VifSender::drawTheSameWithOtherMatrices(const RenderData &t_renderData, Mes
             packet2_add_u32(currMPacket, t_meshes[i]->color.a);
         }
         packet2_utils_vu_close_unpack(currMPacket);
-        if (i != t_count - 1)
+
+        if (i != t_count - 1) // if it is last, we must also add draw wait finish interrupt.
             packet2_utils_vu_add_start_program(currMPacket, 0);
 
         if (switchCounter++ >= 32)
@@ -203,12 +206,12 @@ void VifSender::drawTheSameWithOtherMatrices(const RenderData &t_renderData, Mes
                     packet2_add_u32(currMPacket, 0);                 // Free
                 }
                 packet2_utils_vu_close_unpack(currMPacket);
-                packet2_utils_vu_add_start_program(currMPacket, 0);
+                packet2_utils_vu_add_start_program(currMPacket, 0); // and start program
             }
             packet2_utils_vu_add_end_tag(currMPacket);
             dma_channel_wait(DMA_CHANNEL_VIF1, 0);
             dma_channel_send_packet2(currMPacket, DMA_CHANNEL_VIF1, 1);
-            if (currPacketIndex == 1)
+            if (currPacketIndex == 1) // Switch double buffer (packets)
             {
                 currPacketIndex = 2;
                 currMPacket = packet2;
@@ -221,7 +224,7 @@ void VifSender::drawTheSameWithOtherMatrices(const RenderData &t_renderData, Mes
             packet2_reset(currMPacket, false);
         }
     }
-    if (switchCounter != 0)
+    if (switchCounter != 0) // if there are any not sended matrices
     {
         packet2_utils_vu_open_unpack(currMPacket, VU1_PARAMS_ADDRESS, true);
         {