Add on: Extra Objects, XYZ Surface #87067

New Issue

Michael Fletcher · 2021-03-31T02:15:57+02:00

Michael Fletcher commented

2021-03-31 02:15:57 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-29 22:00, hash: blender/blender@91c44fe885
Worked: (newest version of Blender that worked as expected) 2.92

Short description of error
Add mesh XYZ surface producing mesh inconsistent with previous official release. Adds "internal" geometry instead of completing the shape.

Exact steps for others to reproduce the error

Enable "Extra Objects" add-in.
Shift+A in 3d viewport, Math Function, XYZ surface.
Enter the formula for a sphere:
x equation: cos(u)*cos(v)
y equation: sin(u)*cos(v)
z equation: sin(v)
umin: -pi/2
umax: pi/2
ustep: Optional value, used 72.
vmin: -pi
vmax: pi
vstep: Optional value, used 72.

User notes:
Problem is "fixed" if either of the two actions are performed:

umax is set to pi/2+pi/[u step] (though this shouldn't matter, mathematically.)
or
umin: 0, umax: pi

Both still result in potentially unwanted internal geometry. It is also a notable difference from previous rendition.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-29 22:00, hash: `blender/blender@91c44fe885` Worked: (newest version of Blender that worked as expected) 2.92 **Short description of error** Add mesh XYZ surface producing mesh inconsistent with previous official release. Adds "internal" geometry instead of completing the shape. **Exact steps for others to reproduce the error** - Enable "Extra Objects" add-in. - Shift+A in 3d viewport, Math Function, XYZ surface. - Enter the formula for a sphere: - x equation: `cos(u)*cos(v)` - y equation: `sin(u)*cos(v)` - z equation: `sin(v)` - umin: `-pi/2` - umax: `pi/2` - ustep: Optional value, used `72`. - vmin: `-pi` - vmax: `pi` - vstep: Optional value, used `72`. User notes: Problem is "fixed" if either of the two actions are performed: 1. umax is set to `pi/2+pi/[u step]` (though this shouldn't matter, mathematically.) or 2. umin: `0`, umax: `pi` Both still result in potentially unwanted internal geometry. It is also a notable difference from previous rendition. ``` ```

Michael Fletcher commented

2021-03-31 02:15:57 +02:00

Added subscriber: @MFletcher

Omar Emara commented

2022-03-07 16:43:35 +01:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-03-07 16:43:35 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Omar Emara commented

2022-03-07 16:43:35 +01:00

Can you screenshot the generated internal geometry you mentioned? If U Wrap is enabled, the start and end will be connected together, is this what you are talking about?

Michael Fletcher commented

2022-03-07 19:27:56 +01:00

Please disregard/close. I cannot seem to replicate the error any longer, even with these same installations, so I can only imagine it was user error on U Wrap.

Sorry and thanks.

Please disregard/close. I cannot seem to replicate the error any longer, even with these same installations, so I can only imagine it was user error on U Wrap. Sorry and thanks.

Omar Emara commented

2022-03-07 19:38:18 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Omar Emara closed this issue

2022-03-07 19:38:18 +01:00

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Add on: Extra Objects, XYZ Surface #87067