Second Life Forums Archive - switch textures on two sides of prim

Hylee Bekkers

Registered User

Join date: 30 Apr 2007

Posts: 47

01-14-2009 12:20

I'm sure this is very simple but I have not been able to figure out how to do this. I would like to put several textures in a prim and have the prim display each of those textures one at a time on the front and back of the prim at the same time. I want to leave the top, bottom and sides of the prim transparent. I don't want to animate the texture or have it move at all. Any ideas? Thanks!

Quixotic Hermit

Registered User

Join date: 9 Nov 2008

Posts: 65

01-14-2009 12:23

Your edit menu has an option called SELECT TEXTURE. Enabling this feature will allow you to click on specific faces of a prim for individual texture options. Clicking on a face will show you a cross-hair icon indicating that side is selected. You can also shift-click multiple faces too. So, you can have one or two faces showing your texture, another face transparent, another face full bright only. Whatever your pleasure.

Hylee Bekkers

Registered User

Join date: 30 Apr 2007

Posts: 47

Thanks for the response, but that is not what I am trying to accomplish

01-14-2009 12:26

I probably did not explain it well.
I need a script to automatically cycle through textures on two sides of a prim like a slide show. I know how to do one side of a prim and all sides, but for the life of me I can not figure out how to do just two sides. Thanks

Meade Paravane

Hedgehog

Join date: 21 Nov 2006

Posts: 4,845

01-14-2009 12:30

Have you tried http://wiki.secondlife.com/wiki/LlGetTexture ?

edit: maybe something like...

SwapSides (integer sideA, integer sideB)
{
string texA = llGetTexture (sideA);

llSetTexture (llGetTexture (sideB), sideA);
llSetTexture (texA, sideB);
}

_____________________

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Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

01-14-2009 12:31

If you are using llSetTexture(), you just need to add a second line which sets the texture of the other face as well. You can only address a single face (or ALL_FACES) with a single call to llSetTexture()

The same applies to llSetPrimitiveParams(), you need to add another set of parameters to address the second face.

~Boss

Quixotic Hermit

Registered User

Join date: 9 Nov 2008

Posts: 65

01-14-2009 12:33

From: Hylee Bekkers

I probably did not explain it well.
I need a script to automatically cycle through textures on two sides of a prim like a slide show. I know how to do one side of a prim and all sides, but for the life of me I can not figure out how to do just two sides. Thanks

Sorry "script" was not mentioned at all. But, looks like you've got the help you needed!

Hylee Bekkers

Registered User

Join date: 30 Apr 2007

Posts: 47

I think we are getting close

01-14-2009 12:41

Boss, it's the second line that I am not sure about. What would the second line look like and how is it formatted. I am not very good at scripting so it would be helpful if you could "dumb" it down a little for me. Thanks!

This is for a Christmas Tree. I have a one texture that shows the tree with Red lights on, another with Green lights on, and nother with yellow lights on. I want the Christmas tree to look lik the lights are flashing different colors by cycling through the textures.

That's why I only want the texture to show up on the two sides and the others need to be transparent.

Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

01-14-2009 13:34

I apolgize for my brevity, I was answering based on your statement "I know how to do one side of a prim and all sides..." and assuming that you could just copy the line of a script twice.

Offhand I can think of two simple ways to do what you have described. Using llSetPrimitiveParams() might be more efficient but requires you to supply the texure offset as well as the name. I will demonstrate this with a third script at the bottom.

One would be the way you are thinking, which requires the script to address the two faces separately, with each call addressing one of the two faces. This version will work with more than just two faces, by adding them to the list as in list faces = [ 0, 2, 4 ];

CODE


integer texture_index = -1; // the index (in prim inventory) of the last texture shown 

list faces = [ 2, 4 ]; // the face numbers to update

default
{
    state_entry()
    {
        llSetTimerEvent(3.0); // 3 seconds per texture
    }
    
    timer()
    {
        integer count = llGetInventoryNumber(INVENTORY_TEXTURE);
        if (count > 0)
        {
            texture_index = (texture_index + 1) % count;
            string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index);
            integer i = llGetListLength(faces);
            while (i-- > 0)        // count down the faces CLEVERNESS: post-decrement
                llSetTexture(texture_name, llList2Integer(faces, i));
        }
    }

}

There seems to be some size limit posting so I will continue my reply in the next post.

Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

01-14-2009 13:50

Alternately, you could simply set the faces you wish to hide to 100% transparent alpha, and set all faces with one call.

Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

01-14-2009 13:51

CODE


integer texture_index = -1; 

list faces = [ 2, 4 ];

default
{
    state_entry()
    {
        llSetTimerEvent(3.0);
        
        llSetAlpha(0.0, ALL_SIDES); // all faces clear
        integer i = llGetListLength(faces);
        while (i-- > 0)                                    // count down the faces CLEVERNESS: post-decrement
            llSetAlpha(1.0, llList2Integer(faces, i));     // set to visible
    }
    
    timer()
    {
        integer count = llGetInventoryNumber(INVENTORY_TEXTURE);
        if (count > 0)
        {
            texture_index = (texture_index + 1) % count;
            string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index);
            llSetTexture(texture_name, ALL_SIDES); // apply texture
        }
    }
}

Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

01-14-2009 13:53

This third version relates to the first, using llSetPrimtiveParams() with a list containing all the faces to update, so they all update at once leaving the other faces unchanged:

CODE


integer texture_index = -1; // the index (in prim inventory) of the last texture shown 

list faces = [ 2, 4 ]; // the face numbers to update

default
{
    state_entry()
    {
        llSetTimerEvent(3.0); // 3 seconds per texture
    }
    
    timer()
    {
        integer count = llGetInventoryNumber(INVENTORY_TEXTURE);
        if (count > 0)
        {
            texture_index = (texture_index + 1) % count;
            string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index);
            integer i = llGetListLength(faces);
            list output = [];
            list repeats = [<1.0, 1.0, 0.0>, <0.0, 0.0, 0.0>, 0.0 ]; // repeats, offsets, rotation
            
            while (i-- > 0)                     // build the list of faces
                output = (output = []) + output + PRIM_TEXTURE + llList2Integer(faces, i) + texture_name + repeats;

            if (output)                         // skip if output is empty
                llSetPrimitiveParams(output);
        }
    }
}

For your purposes I think the second version would give the results you seek with the least amount of complexity.

~Boss

Boss Spectre

Registered User

Join date: 5 Sep 2005

Posts: 229

Discovering Prim Face Numbers

01-14-2009 14:10

In order to discover the face numbers for the script, you can enable the Advanced Menu with ctl-alt-D (if not already enabled); then in edit, check Select Textures and choose the faces in question; then press ctl-alt-shift-T or pick Advanced->Rendering->Selected Texture Info and you should see in chat something like:

Texture info for: Object
512x512 alpha on face 2 4

The face numbers (2 4) are listed there for you to use in the script.

~Boss

Hylee Bekkers

Registered User

Join date: 30 Apr 2007

Posts: 47

Boss! You are my Hero!

01-15-2009 13:20

Thanks!

switch textures on two sides of prim
Hylee Bekkers Registered User Join date: 30 Apr 2007 Posts: 47	01-14-2009 12:20 I'm sure this is very simple but I have not been able to figure out how to do this. I would like to put several textures in a prim and have the prim display each of those textures one at a time on the front and back of the prim at the same time. I want to leave the top, bottom and sides of the prim transparent. I don't want to animate the texture or have it move at all. Any ideas? Thanks!
Quixotic Hermit Registered User Join date: 9 Nov 2008 Posts: 65	01-14-2009 12:23 Your edit menu has an option called SELECT TEXTURE. Enabling this feature will allow you to click on specific faces of a prim for individual texture options. Clicking on a face will show you a cross-hair icon indicating that side is selected. You can also shift-click multiple faces too. So, you can have one or two faces showing your texture, another face transparent, another face full bright only. Whatever your pleasure.
Hylee Bekkers Registered User Join date: 30 Apr 2007 Posts: 47	Thanks for the response, but that is not what I am trying to accomplish 01-14-2009 12:26 I probably did not explain it well. I need a script to automatically cycle through textures on two sides of a prim like a slide show. I know how to do one side of a prim and all sides, but for the life of me I can not figure out how to do just two sides. Thanks
Meade Paravane Hedgehog Join date: 21 Nov 2006 Posts: 4,845	01-14-2009 12:30 Have you tried http://wiki.secondlife.com/wiki/LlGetTexture ? edit: maybe something like... SwapSides (integer sideA, integer sideB) { string texA = llGetTexture (sideA); llSetTexture (llGetTexture (sideB), sideA); llSetTexture (texA, sideB); } _____________________ Tired of shouting clubs and lucky chairs? Vote for llParcelSay!!! - Go here: http://jira.secondlife.com/browse/SVC-1224 - If you see "if you were logged in.." on the left, click it and log in - Click the "Vote for it" link on the left
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	01-14-2009 12:31 If you are using llSetTexture(), you just need to add a second line which sets the texture of the other face as well. You can only address a single face (or ALL_FACES) with a single call to llSetTexture() The same applies to llSetPrimitiveParams(), you need to add another set of parameters to address the second face. ~Boss
Quixotic Hermit Registered User Join date: 9 Nov 2008 Posts: 65	01-14-2009 12:33 From: Hylee Bekkers I probably did not explain it well. I need a script to automatically cycle through textures on two sides of a prim like a slide show. I know how to do one side of a prim and all sides, but for the life of me I can not figure out how to do just two sides. Thanks Sorry "script" was not mentioned at all. But, looks like you've got the help you needed!
Hylee Bekkers Registered User Join date: 30 Apr 2007 Posts: 47	I think we are getting close 01-14-2009 12:41 Boss, it's the second line that I am not sure about. What would the second line look like and how is it formatted. I am not very good at scripting so it would be helpful if you could "dumb" it down a little for me. Thanks! This is for a Christmas Tree. I have a one texture that shows the tree with Red lights on, another with Green lights on, and nother with yellow lights on. I want the Christmas tree to look lik the lights are flashing different colors by cycling through the textures. That's why I only want the texture to show up on the two sides and the others need to be transparent.
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	01-14-2009 13:34 I apolgize for my brevity, I was answering based on your statement "I know how to do one side of a prim and all sides..." and assuming that you could just copy the line of a script twice. Offhand I can think of two simple ways to do what you have described. Using llSetPrimitiveParams() might be more efficient but requires you to supply the texure offset as well as the name. I will demonstrate this with a third script at the bottom. One would be the way you are thinking, which requires the script to address the two faces separately, with each call addressing one of the two faces. This version will work with more than just two faces, by adding them to the list as in list faces = [ 0, 2, 4 ]; CODE integer texture_index = -1; // the index (in prim inventory) of the last texture shown list faces = [ 2, 4 ]; // the face numbers to update default { state_entry() { llSetTimerEvent(3.0); // 3 seconds per texture } timer() { integer count = llGetInventoryNumber(INVENTORY_TEXTURE); if (count > 0) { texture_index = (texture_index + 1) % count; string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index); integer i = llGetListLength(faces); while (i-- > 0) // count down the faces CLEVERNESS: post-decrement llSetTexture(texture_name, llList2Integer(faces, i)); } } } There seems to be some size limit posting so I will continue my reply in the next post.
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	01-14-2009 13:50 Alternately, you could simply set the faces you wish to hide to 100% transparent alpha, and set all faces with one call.
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	01-14-2009 13:51 CODE integer texture_index = -1; list faces = [ 2, 4 ]; default { state_entry() { llSetTimerEvent(3.0); llSetAlpha(0.0, ALL_SIDES); // all faces clear integer i = llGetListLength(faces); while (i-- > 0) // count down the faces CLEVERNESS: post-decrement llSetAlpha(1.0, llList2Integer(faces, i)); // set to visible } timer() { integer count = llGetInventoryNumber(INVENTORY_TEXTURE); if (count > 0) { texture_index = (texture_index + 1) % count; string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index); llSetTexture(texture_name, ALL_SIDES); // apply texture } } }
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	01-14-2009 13:53 This third version relates to the first, using llSetPrimtiveParams() with a list containing all the faces to update, so they all update at once leaving the other faces unchanged: CODE integer texture_index = -1; // the index (in prim inventory) of the last texture shown list faces = [ 2, 4 ]; // the face numbers to update default { state_entry() { llSetTimerEvent(3.0); // 3 seconds per texture } timer() { integer count = llGetInventoryNumber(INVENTORY_TEXTURE); if (count > 0) { texture_index = (texture_index + 1) % count; string texture_name = llGetInventoryName(INVENTORY_TEXTURE, texture_index); integer i = llGetListLength(faces); list output = []; list repeats = [<1.0, 1.0, 0.0>, <0.0, 0.0, 0.0>, 0.0 ]; // repeats, offsets, rotation while (i-- > 0) // build the list of faces output = (output = []) + output + PRIM_TEXTURE + llList2Integer(faces, i) + texture_name + repeats; if (output) // skip if output is empty llSetPrimitiveParams(output); } } } For your purposes I think the second version would give the results you seek with the least amount of complexity. ~Boss
Boss Spectre Registered User Join date: 5 Sep 2005 Posts: 229	Discovering Prim Face Numbers 01-14-2009 14:10 In order to discover the face numbers for the script, you can enable the Advanced Menu with ctl-alt-D (if not already enabled); then in edit, check Select Textures and choose the faces in question; then press ctl-alt-shift-T or pick Advanced->Rendering->Selected Texture Info and you should see in chat something like: Texture info for: Object 512x512 alpha on face 2 4 The face numbers (2 4) are listed there for you to use in the script. ~Boss
Hylee Bekkers Registered User Join date: 30 Apr 2007 Posts: 47	Boss! You are my Hero! 01-15-2009 13:20 Thanks!

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switch textures on two sides of prim