fix compiler warnings (GCC + Clang)

src/graphics/render/BlocksRenderer.cpp

@@ -329,8 +329,6 @@ void BlocksRenderer::blockCube(
     bool lights,
     bool ao
 ) {
-    ubyte group = block.drawGroup;
-
     glm::ivec3 X(1, 0, 0);
     glm::ivec3 Y(0, 1, 0);
     glm::ivec3 Z(0, 0, 1);
@@ -557,7 +555,7 @@ SortingMeshData BlocksRenderer::renderTranslucent(
                     y + 0.5f,
                     z + chunk->z * CHUNK_D + 0.5f
                 ),
-                util::Buffer<float>(indexSize * CHUNK_VERTEX_SIZE)};
+                util::Buffer<float>(indexSize * CHUNK_VERTEX_SIZE), 0};
 
             totalSize += entry.vertexData.size();
 
@@ -593,7 +591,8 @@ SortingMeshData BlocksRenderer::renderTranslucent(
          sortingMesh.entries.size() > 1) {
         SortingMeshEntry newEntry {
             sortingMesh.entries[0].position,
-            util::Buffer<float>(totalSize)
+            util::Buffer<float>(totalSize),
+            0
         };
         size_t offset = 0;
         for (const auto& entry : sortingMesh.entries) {
@@ -643,7 +642,7 @@ void BlocksRenderer::build(const Chunk* chunk, const Chunks* chunks) {
     vertexOffset = 0;
     indexOffset = indexSize = 0;
     
-    sortingMesh = std::move(renderTranslucent(voxels, beginEnds));
+    sortingMesh = renderTranslucent(voxels, beginEnds);
     
     overflow = false;
     vertexOffset = 0;