Timage and reading pixels

[Madjack]

Ok - time for another dumb newbie question.

 

I'm looking to load an image and read pixel colours (with which to ultimately deform a mesh)

 

I would have thought loadimage would be the one, but I'm finding defining a TImage is giving a

'Identifier TImage not found' error when used with the framework.

 

Strict
Framework leadwerks.engine
Local j_image:TImage

 

I'm using BMax v1.45, LE is up to date. Remove the framework ref and the code compiles ok.

 

Is anyone else experiencing this? What am I missing?

[Naughty Alien]

LE doesnt know TImage..instead, LE loading TTexture

[Madjack]

NA

 

Err - how do I read a pixel color from a texture?

 

I can't see a corresponding readpixel or getcolor command.

[DaDonik]

You might be able to use OpenGL functions on that TTexture. Haven't tried this myself, so it's just an idea.

 

There is also the possibility to use an external library to load images and read their pixels. I have used http://www.lonesock.net/soil.html in the past and it worked pretty well.

[Madjack]

LE doesn't allow native access to pixel data? Seriously?

 

<EDIT> This makes no sense to me. So I can create a buffer for a texture and store texture channel data in that buffer but there's no easy way to read a colour at a given x/y?

 

For example ;

Local TEX_TEMP:TTexture = LoadTexture("abstract::CHECKERBOARD.JPG")
Local T_BUFFER:TBuffer = CreateBuffer(256, 256)
SetBuffer(T_BUFFER)
SetColorBuffer(T_BUFFER, TEX_TEMP)

GetColorBufferXY(T_BUFFER) ' Something like this does not exist in LE?? 

[Madjack]

Hi all

 

Any further info anyone can provide regards the above?

 

Usually when people stop responding it's because of a fundamental misunderstanding on the part of the OP. Is that the case here? Am I out of line?

[macklebee]

well it hasnt even been a day since you first posted... patience... remember that the community is spread out across many different time zones and most of us have jobs... so if you do not get an immediate response, give it time...

 

as for your issue, you could just import the glmax2d module into your bmax code, then just use the needed commands from it... im sure there are some commands that you would have to use namespace to prevent conflicts between LE and max2d... just a thought... or you could use raw opengl commands...

 

<edit> the import seems to work... but i have no idea if this will cause any issues elsewhere... using raw opengl might be better...

madjack_opengl.bmx

[Madjack]

mb

 

Thanks for the info - sorry, I was a little impatient.

 

Currently converting my large Xors codebase to LE and I'm finding the process quite distressing

But I'll get on top of it!

[Madjack]

mb

 

Duh!

 

Looks like I could just use LoadPixmap / ReadPixel to get the colour values - doesn't need to be a texture.

Would using a pixmap likely cause any issues with LE do you think?