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Diffstat (limited to 'intern/cycles/integrator/render_scheduler.cpp')
| -rw-r--r-- | intern/cycles/integrator/render_scheduler.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/intern/cycles/integrator/render_scheduler.cpp b/intern/cycles/integrator/render_scheduler.cpp index a75662c90d8..ebc3170393f 100644 --- a/intern/cycles/integrator/render_scheduler.cpp +++ b/intern/cycles/integrator/render_scheduler.cpp @@ -750,6 +750,11 @@ double RenderScheduler::guess_display_update_interval_in_seconds_for_num_samples int RenderScheduler::calculate_num_samples_per_update() const { const double time_per_sample_average = path_trace_time_.get_average(); + /* Fall back to 1 sample if we have not recorded a time yet. */ + if (time_per_sample_average == 0.0) { + return 1; + } + const double num_samples_in_second = pixel_size_ * pixel_size_ / time_per_sample_average; const double update_interval_in_seconds = guess_display_update_interval_in_seconds(); |