Merge branch 'blender-v2.92-release'

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/draw/engines/eevee/eevee_cryptomatte.c b/source/blender/draw/engines/eevee/eevee_cryptomatte.c
index 91a230e987c..90948d67895 100644
--- a/source/blender/draw/engines/eevee/eevee_cryptomatte.c
+++ b/source/blender/draw/engines/eevee/eevee_cryptomatte.c
@@ -161,6 +161,14 @@ void EEVEE_cryptomatte_output_init(EEVEE_ViewLayerData *UNUSED(sldata),
     g_data->cryptomatte_download_buffer = MEM_malloc_arrayN(
         sizeof(float), buffer_size * num_cryptomatte_layers, __func__);
   }
+  else {
+    /* During multiview rendering the `cryptomatte_accum_buffer` is deallocated after all views
+     * have been rendered. Clear it here to be reused by the next view. */
+    memset(g_data->cryptomatte_accum_buffer,
+           0,
+           buffer_size * eevee_cryptomatte_pixel_stride(view_layer) *
+               sizeof(EEVEE_CryptomatteSample));
+  }
 
   DRW_texture_ensure_fullscreen_2d(&txl->cryptomatte, format, 0);
   GPU_framebuffer_ensure_config(&fbl->cryptomatte_fb,