Fix T70466 Rendering error when drawing multi-material meshes

2019-10-03 14:43:31 +02:00
parent 9a4042bed8
commit 11768d1c9f
1 changed files with 2 additions and 0 deletions
--- a/source/blender/gpu/intern/gpu_batch.c
+++ b/source/blender/gpu/intern/gpu_batch.c
@@ -878,6 +878,8 @@ void GPU_draw_list_submit(GPUDrawList *list)
    if (batch->elem) {
      GPUDrawCommandIndexed *cmd = list->commands_indexed;
      for (int i = 0; i < cmd_len; i++, cmd++) {
+        /* Index start was added by Draw manager. Avoid counting it twice. */
+        cmd->v_first -= batch->elem->index_start;
        GPU_batch_draw_advanced(batch, cmd->v_first, cmd->v_count, cmd->i_first, cmd->i_count);
      }
    }