0006623: llCastRay returns incorrect UUID when it collides with a linkset

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Date Submitted

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0006623

opensim

[REGION] Script Functions

public

2013-05-06 16:02

2015-04-29 09:25

Reporter

Assigned To

Priority

normal

Severity

major

Reproducibility

always

Status

new

Resolution

open

Platform

OS Version

Product Version

master (dev code)

Target Version

Fixed in Version

Summary

0006623: llCastRay returns incorrect UUID when it collides with a linkset

Description

llCastRay is supposed to return the UUID of the linked prim it intersects.
Instead, it is returning the Root Prim UUID of the linkset. It is ONLY supposed to return the root prim UUID if the (RC_DATA_FLAGS, RC_GET_ROOT_PRIM ) arguments are used. This also means that the link number returned (using RC_DATA_FLAGS, RC_GET_LINK_NUM ) is ALWAYS 1.

Steps To Reproduce

create a prim and add the following script.

integer filter= 8;// default is 0

default
{
    state_entry()
    {
        string ownerName = llKey2Name(llGetOwner());
        llOwnerSay("Hello, " + ownerName + "!");
    }

    touch_start(integer total_number)
    {
        vector start = llGetPos();
        vector end = start - <0.0, 0.0,5.0>;

        llOwnerSay("Filter " + (string)filter + " - Casting ray from : " + (string) start + " to " + (string) end);

        list results = llCastRay(start, end, [RC_REJECT_TYPES, filter, RC_MAX_HITS, 4] );

        llOwnerSay(llList2CSV(results));

        integer hitNum = 0;

        while (hitNum < llList2Integer(results, -1))
        {
            // Stride is 2 because we didn't request normals or link numbers
            key uuid = llList2Key(results, 2*hitNum);

            string name = "Land"; // if (uuid == NULL_KEY)

            if (uuid != NULL_KEY)
                name = llKey2Name(uuid);

            llOwnerSay("Hit " + name + "." + llList2String(llGetObjectDetails(uuid,[OBJECT_DESC]),0));

            ++hitNum;
        }


    }
}

Move the prim to eye level...

Create 4 2x2 meter tiles on the group..do not link them.
Move the test prim over the top of each and touch it... It should spam hit information about the prim beneath it. Move the prim over each of the 4 tiles and note that it correctly reports the prim UUID.

Link the 4 tiles and repeat... you will notice that the root UUID is returned no matter which tile the object is above.

Tags

No tags attached.

Git Revision or version number

OpenSim 0.7.5 Post_Fixes

Run Mode

Standalone (Multiple Regions)

Physics Engine

ODE

Environment

Mono / Linux64

Mono Version

2.10

Viewer

Firestorm

Attached Files

Relationships

has duplicate	0007374	new		llCastRay does not return the UUID of child prims
related to	0007546	closed	nebadon	llCastRay only partly implemented

Notes
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Issue History
Date Modified	Username	Field	Change
2013-05-06 16:02	dz	New Issue
2013-05-06 16:09	dz	Git Revision or version number	D2 release r22458 => OpenSim 0.7.5 Post_Fixes
2014-11-19 06:39	dz	Relationship added	has duplicate 0007374
2015-04-29 09:25	Magnuz	Relationship added	related to 0007546