Fix #32815: cycles environment render as lamp crash with resolution >= 1024.

1 files changed, 1 insertions, 6 deletions

diff --git a/intern/cycles/render/light.cpp b/intern/cycles/render/light.cpp
index 5c1737bd60a..d77516a1b18 100644
--- a/intern/cycles/render/light.cpp
+++ b/intern/cycles/render/light.cpp
@@ -68,20 +68,15 @@ static void dump_background_pixels(Device *device, DeviceScene *dscene, int res,
 	main_task.shader_w = width*height;
 
 	/* disabled splitting for now, there's an issue with multi-GPU mem_copy_from */
-#if 0
 	list<DeviceTask> split_tasks;
 	main_task.split_max_size(split_tasks, 128*128); 
 
 	foreach(DeviceTask& task, split_tasks) {
 		device->task_add(task);
 		device->task_wait();
+		device->mem_copy_from(d_output, task.shader_x, 1, task.shader_w, sizeof(float4));
 	}
-#else
-	device->task_add(main_task);
-	device->task_wait();
-#endif
 
-	device->mem_copy_from(d_output, 0, 1, d_output.size(), sizeof(float4));
 	device->mem_free(d_input);
 	device->mem_free(d_output);