Page MenuHome
Create Task
Maniphest T76203

Viewport: Auto-Depth rotation ignore transparent image reference empties
Confirmed, NormalPublicKNOWN ISSUE
Actions

Description

System Information
Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92

Blender Version
Broken: version: 2.90 (sub 0), branch: master, commit date: 2020-04-23 21:08, hash: rB826f6dd9ee20
Worked: (newest version of Blender that worked as expected)

Short description of error
cant rotate around partially occluded image objects.

Exact steps for others to reproduce the error

open file, make sure rotate around mouse is enabled in preferences. hover mouse over either side images and hold in the mouse wheel, move the mouse, the view will rotate around the mouse. Now do the same for the middle image, the view no longer rotates around the mouse.

rotate around mouse bug with image objects that are occluded.blend29 MBDownload

Related Objects

Event Timeline

michael campbell (3di) created this task.Apr 29 2020, 12:25 AM
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).Apr 29 2020, 8:26 PM

This seems to be related to the image in the center with the "Transparency" option enabled. Can you confirm?
It also does not receive a projection of the 3d cursor.

michael campbell (3di) added a comment.Apr 29 2020, 8:30 PM

Correct, although if you move the cube behind so it’s not intersecting the image plane, then it works as normal without changing any of the image objects settings.

Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Apr 29 2020, 9:27 PM
Richard Antalik (ISS) added a project: EEVEE & Viewport.
Germano Cavalcante (mano-wii) added a comment.Apr 29 2020, 10:51 PM

A quick fix would be:

diff --git a/source/blender/draw/engines/overlay/overlay_image.c b/source/blender/draw/engines/overlay/overlay_image.c
index c592f11a855..252bcb4b1f1 100644
--- a/source/blender/draw/engines/overlay/overlay_image.c
+++ b/source/blender/draw/engines/overlay/overlay_image.c
@@ -366,7 +366,8 @@ void OVERLAY_image_empty_cache_populate(OVERLAY_Data *vedata, Object *ob)
 
   const bool show_frame = BKE_object_empty_image_frame_is_visible_in_view3d(ob, rv3d);
   const bool show_image = show_frame && BKE_object_empty_image_data_is_visible_in_view3d(ob, rv3d);
-  const bool use_alpha_blend = (ob->empty_image_flag & OB_EMPTY_IMAGE_USE_ALPHA_BLEND) != 0;
+  const bool use_alpha_blend = !DRW_state_is_depth() &&
+                               (ob->empty_image_flag & OB_EMPTY_IMAGE_USE_ALPHA_BLEND) != 0;
   const bool use_alpha_premult = ima && (ima->alpha_mode == IMA_ALPHA_PREMUL);
 
   if (!show_frame) {
michael campbell (3di) added a comment.Apr 29 2020, 11:23 PM

@Germano Cavalcante (mano-wii) wow, they said you were fast, but that's ridiculous! Brilliant.

Clément Foucault (fclem) changed the subtype of this task from "Report" to "Known Issue".Jun 30 2020, 1:40 AM
Clément Foucault (fclem) edited projects, added User Interface; removed EEVEE & Viewport.
Clément Foucault (fclem) added a subscriber: Clément Foucault (fclem).

I would say this is by design. Transparent object should not be occluders. Not even for rotation. I can see some people using image plane as reference and this would get in the way really quickly.

Clément Foucault (fclem) renamed this task from rotate around mouse bug with image objects that are occluded to Viewport: Auto-Depth rotation ignore transparent image reference empties.Jun 30 2020, 1:42 AM
Julian Eisel (Severin) moved this task from Backlog to Known Issues on the User Interface board.Jul 1 2020, 3:40 PM
Pratik Borhade (PratikPB2123) mentioned this in T91898: AutoDepth ignores texture transparency.Oct 3 2021, 11:52 AM