Fix T56817: Assert because of invalid framebuffer

2018-09-16 21:22:55 +02:00
parent 8c87e681a5
commit a06d803a5a
1 changed files with 3 additions and 0 deletions
--- a/source/blender/gpu/intern/gpu_framebuffer.c
+++ b/source/blender/gpu/intern/gpu_framebuffer.c
@@ -628,6 +628,9 @@ void GPU_framebuffer_recursive_downsample(
 	GPUFrameBuffer *prev_fb = GPU_framebuffer_active_get();
 	gpu_framebuffer_current_set(NULL);

+	int levels = floor(log2(max_ii(fb->width, fb->height)));
+	max_lvl = min_ii(max_lvl, levels);
+
 	int i;
 	int current_dim[2] = {fb->width, fb->height};
 	for (i = 1; i < max_lvl + 1; i++) {