Cycles in 2.79 and 2.8 and bound "bounding box" #72493

New Issue

B · 2019-12-16T23:54:36+01:00

B commented

2019-12-16 23:54:36 +01:00

System Information
Operating system:windows 10x64 -1909( 18363.535) for now it is latest
Graphics card:GTX 1070ti (drv 441.66 for now it is latest)

Blender Version
Broken: version: 2.82 (sub 5), branch: master/build date: 2019-12-16, 19:52:00
Worked: (optional) 2.79

Short description of error
probably this is not a bug BUT this is definitely regression in functionality, i reported it here https:*devtalk.blender.org/t/about-cycles-in-2-79-and-2-8-and-bound-bounding-box/3154 in Nov 2018 but now Dalay said https:*devtalk.blender.org/t/about-cycles-in-2-79-and-2-8-and-bound-bounding-box/3154/15 if what i described still happen i can make bug report.
believe me - all who make archviz in blender know about this downgrade in functionality in 2.8...:
In 2.79 when you make viewport rendering and in viewport you have many objects with high poly count - in render time blender remain object in bounds representation if you set it for them.
BUT
In 2.80 when you make viewport rendering and in viewport you have many objects with high poly count - in render time blender make those object not in bounds representation but full solid and viewport because of that star work very slow, i understand why slow - i make them bounds representation because of that BUT WHY 2.80 make them solid when it already setted as bounds? And in 2.79 all fine. Same scene, Same file…
here https://www.youtube.com/watch?v=o_dRQxwCE8Q i make video about it. it old but in latest daily behave same

Exact steps for others to reproduce the error
reproduce is simple - load random object which you have with poly count more than 500 000
make them on "object properties" display as bounding box
now duplicate this object 10 times
now render it in cycles
ALL boundig objects now displaet in FULL poly count. In render time.

**System Information** Operating system:windows 10x64 -1909( 18363.535) for now it is latest Graphics card:GTX 1070ti (drv 441.66 for now it is latest) **Blender Version** Broken: version: 2.82 (sub 5), branch: master/build date: 2019-12-16, 19:52:00 Worked: (optional) 2.79 **Short description of error** probably this is not a bug BUT this is definitely regression in functionality, i reported it here https:*devtalk.blender.org/t/about-cycles-in-2-79-and-2-8-and-bound-bounding-box/3154 in Nov 2018 but now Dalay said https:*devtalk.blender.org/t/about-cycles-in-2-79-and-2-8-and-bound-bounding-box/3154/15 if what i described still happen i can make bug report. believe me - all who make archviz in blender know about this downgrade in functionality in 2.8...: In 2.79 when you make viewport rendering and in viewport you have many objects with high poly count - in render time blender remain object in bounds representation if you set it for them. BUT In 2.80 when you make viewport rendering and in viewport you have many objects with high poly count - in render time blender make those object not in bounds representation but full solid and viewport because of that star work very slow, i understand why slow - i make them bounds representation because of that BUT WHY 2.80 make them solid when it already setted as bounds? And in 2.79 all fine. Same scene, Same file… here https://www.youtube.com/watch?v=o_dRQxwCE8Q i make video about it. it old but in latest daily behave same **Exact steps for others to reproduce the error** reproduce is simple - load random object which you have with poly count more than 500 000 make them on "object properties" display as bounding box now duplicate this object 10 times now render it in cycles **ALL boundig objects now displaet in FULL poly count. In render time.**

B commented

2019-12-16 23:54:36 +01:00

Added subscriber: @BoShi

Marcin Twarowski commented

2019-12-17 09:20:35 +01:00

Added subscriber: @MarcinTwarowski

Marcin Twarowski commented

2019-12-17 09:20:35 +01:00

Related: #72453

Philipp Oeser commented

2019-12-17 09:34:00 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-12-17 09:34:00 +01:00

I would say this is a duplicate of #72453 (Display as behaviour in rendered view inconsistent between Eevee and Cycles), needs a design decission, lets continue discussion there...

Philipp Oeser commented

2019-12-17 09:34:14 +01:00

Closed as duplicate of #72453

Philipp Oeser closed this issue

2019-12-17 09:34:14 +01:00

B commented

2019-12-17 17:37:26 +01:00

this is not dublicate!
there #72453 user talk about eevee and not take in count render region. They talk about viewport render mode eevee it self!

this is not dublicate! there #72453 user talk about eevee and not take in count render region. They talk about viewport render mode eevee it self!

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Cycles in 2.79 and 2.8 and bound "bounding box" #72493