Fix #127774: Flat Object matrix leads to incorrect culling #127807

Merged
Clément Foucault merged 2 commits from fclem/blender:fix-127774 into main 2024-09-19 14:10:16 +02:00

Object with degenerate transform matrix can lead to flat
bounds on GPU. This in turn lead to NaN intersection planes
inside IsectBox.

Compute (pseudo) size of matrix and bypass culling is any
axis is too small.

The other part of the patch makes sure that there is a
distinction between disabled culling and invalid
bounding boxes.

Object with degenerate transform matrix can lead to flat bounds on GPU. This in turn lead to NaN intersection planes inside `IsectBox`. Compute (pseudo) size of matrix and bypass culling is any axis is too small. The other part of the patch makes sure that there is a distinction between disabled culling and invalid bounding boxes.
Clément Foucault added the
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Viewport & EEVEE
label 2024-09-18 17:02:15 +02:00
Clément Foucault added 1 commit 2024-09-18 17:02:27 +02:00
Fix: #127774: Flat Object matrix leads to incorrect culling
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9d62cf5ba3
Object with degenerate transform matrix can lead to flat
bounds on GPU. This in turn lead to NaN intersection planes
inside IsectBox.

Compute (pseudo) size of matrix and bypass culling is any
axis is too small.

The other part of the patch makes sure that there is a
distinction between disabled culling and invalid
bounding boxes.
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@blender-bot build

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Clément Foucault added 1 commit 2024-09-18 17:57:33 +02:00
Fix stupid
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5e3bad494c
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Hans Goudey changed title from Fix: #127774: Flat Object matrix leads to incorrect culling to Fix #127774: Flat Object matrix leads to incorrect culling 2024-09-18 18:35:29 +02:00
Clément Foucault merged commit 02cf5f5f0f into main 2024-09-19 14:10:16 +02:00
Clément Foucault deleted branch fix-127774 2024-09-19 14:10:19 +02:00
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There are still several places in the code-base where an Isectbox is setup after checking for drw_bounds_are_valid.
Some of them just access the corners, so they should be fine (although we should use shape_box in those cases?) but others use the box for intersection testing.

There are still several places in the code-base where an `Isectbox` is setup after checking for `drw_bounds_are_valid`. Some of them just access the corners, so they should be fine (although we should use `shape_box` in those cases?) but others use the box for intersection testing.
Miguel Pozo referenced this issue from a commit 2024-09-25 19:59:00 +02:00
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Reference: blender/blender#127807
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