[#VWR-3189] Windlight: Sun light shines on objects behind objects that should block the light.

1. Second Life Viewer - VWR

Windlight: Sun light shines on objects behind objects that should block the light.

Created: 15/Nov/07 03:09 PM Updated: 15/Nov/07 06:59 PM

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Component/s:

Graphics

Affects Version/s:

First Look: WindLight

Fix Version/s:

None

File Attachments:

None

Image Attachments:

1. windlight_sun_error.png
(387 kB)

Environment:

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CPU: Intel(R) Core(TM)2 Quad CPU @ 2.40GHz
Memory: 3939 MB
OS Version: Linux 2.6.18-1.2798.fc6 #1 SMP Mon Oct 16 14:39:22 EDT 2006 x86_64
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce 8600 GTS/PCI/SSE2
OpenGL Version: 2.1.1 NVIDIA 100.14.19
LLMozLib Version: 1.1.0 (Mozilla GRE:1.8.0.12_0000000000)
Packets Lost: 160/50579 (0.3%)
Viewer Digest: 080951f6-5ad5-f40f-3cb7-e47e0e51b9ea

Issue Links:

Duplicate

This issue duplicates:

VWR-1601 Prims casting shadows

Description

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I noticed this while in a dark building while looking for good uses of ambient lighting.

My avatar had a warm sunny glow on him. Though there were windows within the building, they were left and right. Even as a walked to the wall, the glow continued.

I turned around to find the objects facing the direction of the sun also basked under the sunlight, though the wall should be blocking it.

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Comments

Change History

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KillerMonkey Spire added a comment - 15/Nov/07 03:13 PM

Light from objects are working the same way, magically passing through solid opaque objects to light up other objects.

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Simon Nolan added a comment - 15/Nov/07 06:54 PM

Prims not casting shadows isn't unique to WindLight. In no LL viewer do prims cast shadows, either from the sun/moon or local lights. OpenGL itself does not automatically generate shadows, and my understanding is that calculating shadows in OpenGL is pretty compute-intensive. More info here: http://www.opengl.org/resources/faq/technical/lights.htm

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Simon Nolan added a comment - 15/Nov/07 06:59 PM

(Resolved as duplicate of VWR-1601)