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[BUG-11674] Textures with transparency render incorrectly on mesh #1815

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sl-service-account opened this issue Apr 1, 2016 · 7 comments
Closed

[BUG-11674] Textures with transparency render incorrectly on mesh #1815

sl-service-account opened this issue Apr 1, 2016 · 7 comments
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project:BUG

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sl-service-account commented Apr 1, 2016 •
edited by sl-issues-importer bot

Steps to Reproduce

Viewing mesh hair.

Actual Behavior

Mesh hair renders incorrectly on Mac. See the provided snapshot. This occurs when all shaders are disabled as well as all shaders enabled.

Expected Behavior

I was expecting the mesh to render properly without appearing to break in several places.

Other information

This seems to be specific to Macs with ATI graphics cards.

Attachments

Original Jira Fields
Field Value
Issue BUG-11674
Summary Textures with transparency render incorrectly on mesh
Type Bug
Priority Unset
Status Closed
Resolution Duplicate
Created at 2016-04-01T02:54:11Z
Updated at 2016-04-12T16:47:24Z 
{
  'Business Unit': ['Platform'],
  'Date of First Response': '2016-03-31T23:19:35.497-0500',
  "Is there anything you'd like to add?": 'This seems to be specific to Macs with ATI graphics cards.',
  'ReOpened Count': 0.0,
  'Severity': 'Unset',
  'System': 'SL Viewer',
  'Target Viewer Version': 'viewer-development',
  'What just happened?': 'Mesh hair renders incorrectly on Mac. See the provided snapshot. This occurs when all shaders are disabled as well as all shaders enabled.',
  'What were you doing when it happened?': 'Viewing mesh hair.',
  'What were you expecting to happen instead?': 'I was expecting the mesh to render properly without appearing to break in several places.',
}
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Whirly Fizzle commented at 2016-04-01T04:19:35Z

I suspect this is BUG-8801

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Joanna Corith commented at 2016-04-01T13:05:00Z, updated at 2016-04-01T14:48:09Z

A couple of weeks (1-2) ago same bug came crawling to me.
Though it seems to show also on other objects (i.e. EDIT: http://roquai7.blogspot.de/2016/04/bug-11674.html) than that hair showing on ss 2016-03-31 (other hair looks fine). Drivers & graphic preferences are ok.

Second Life 4.0.3 (312816) Mar 22 2016 15:54:35 (Second Life Release)

CPU: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4200 MHz)
Memory: 32768 MB
OS Version: Mac OS X 10.9.5 Darwin 13.4.0 Darwin Kernel Version 13.4.0: Mon Jan 11 18:17:34 PST 2016; root:xnu-2422.115.15~1/RELEASE_X86_64 x86_64
Graphics Card Vendor: ATI Technologies Inc.
Graphics Card: ATI Radeon Cypress PRO Prototype OpenGL Engine

OpenGL Version: 2.1 ATI-1.24.39

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Noke Yuitza commented at 2016-04-01T13:14:53Z

Is not just related to ATI graphics, nor macs. Since I've updated to last version of the SL Viewer and the transparency bug has come back for me too.

My OS version and graphic card:
OS X El Capitan (10.11.4)
NVIDIA GeForce GT 750M 1024 MB

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Whirly Fizzle commented at 2016-04-01T13:42:43Z

Can you give a Marketplace link (or creator name, item name & SLURL) for an object that reproduces it on the latest viewer but didn't reproduce it on earlier viewer versions?

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Joanna Corith commented at 2016-04-01T14:23:34Z, updated at 2016-04-01T14:24:46Z

the hair on your screeny is this one: https://marketplace.secondlife.com/p/edeLsToRe-man-mesh-hair-Tom-incl-all-colors-HUD-Special-Rigged-Fitted-Mesh-Hair/7298855 :) it was also the one, that used to be okay before.

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Whirly Fizzle commented at 2016-04-01T14:58:52Z

Thanks!

That hair is OK on my Windows box with ALM enabled and disabled.
Worn & rezzed: http://prntscr.com/amt7fy

Second Life 4.0.3 (312816) Mar 22 2016 14:59:25 (Second Life Release)
Release Notes

You are at 89.9, 115.1, 22.0 in Testylvania Sandbox located at sim8922.agni.lindenlab.com (216.82.41.98:12035)
SLURL: http://maps.secondlife.com/secondlife/Testylvania%20Sandbox/90/115/22
(global coordinates 332,634.0, 306,291.0, 22.0)
Second Life Server 16.03.04.312045
Retrieving...

CPU: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (3491.95 MHz)
Memory: 16268 MB
OS Version: Microsoft Windows 7 64-bit Service Pack 1 (Build 7601)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce GTX 750/PCIe/SSE2

Windows Graphics Driver Version: 10.18.0013.6472
OpenGL Version: 4.5.0 NVIDIA 364.72

libcurl Version: libcurl/7.47.0 OpenSSL/1.0.1h zlib/1.2.8
J2C Decoder Version: KDU v7.2
Audio Driver Version: FMOD Ex 4.44.31
LLCEFLib/CEF Version: 1.5.3-(CEF-WIN-3.2526.1347-32)
Voice Server Version: Vivox 4.6.0017.22050

Built with MSVC version 1800
Packets Lost: 513/14,018 (3.7%)

The only way I can think of to make that hair mess up on my system is to wear a large sized system hair textured with an alpha texture.
Then we get this lovely mess: http://prntscr.com/amt8v0
That is an ancient bug though & no baldy hairbase should ever be this big, I deliberately made this to break that hair - it will break any hair it's worn under if the hair contains alpha in the texture.

So if you are seeing this hair broken on a Windows box, check to see if changing hairbase fixes it.

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ChickenPots commented at 2016-04-08T23:24:02Z

I'm having the same issue!! https://jira.secondlife.com/browse/BUG-11745

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