Thanks for any help

Function movement()
Local nodePosition:Vector3df = camera.getPosition()
Local velo:vector3df

    If receiver.IsKeyDown(EKEY_KEY_W)
   
    velo.setZ(nodePosition.getZ() + (MOVEMENT_SPEED * frameDeltaTime))
    ElseIf receiver.IsKeyDown(EKEY_KEY_S)
        velo.setZ(nodePosition.getZ() - (MOVEMENT_SPEED * frameDeltaTime))
    EndIf

    If receiver.IsKeyDown(EKEY_KEY_A)
        velo.setX(nodePosition.getX() - (MOVEMENT_SPEED * frameDeltaTime))
    ElseIf receiver.IsKeyDown(EKEY_KEY_D)
        velo.setX(nodePosition.getX() + (MOVEMENT_SPEED * frameDeltaTime))
    EndIf
   
    Local x:Float,y:Float,z:Float

    Local m:matrix4 = New matrix4
    m= camera.getabsolutetransformation()
    m.rotatevect(velo)
    X=camera.getposition().getX()+velo.getx()
    Y=camera.getposition().getY()+velo.getY()
    Z=camera.getposition().getZ()+velo.getZ()
    camera.setposition(_VECTOR3dF(x,y,z))
   
End Function

get the error: unhandlet exception: attempt to access field or method of null object at "m.rotatevect(velo)"

hope anyone can help =/

I'm feeling really dumb here and I know i've asked a few other questions lately just hoping you still are able to help with this a bit? i'm unable to recompile the mod, I was looking at what it takes and spending time trying to search the forums but not having any luck, i saw a post mention you need the MinGW installed in the windows directory so i downloaded that but i just get a "Build Error: failed to compile irrlicht.cpp" error when trying to build Core.bmx.

I am a complete noob with building modules I haven't done any before (am i able build them with BMX or do i need an external compilier?) but I didn't think it was supposed to be hard? Do i need the irrlicht code installed as well somewhere? I understand the C++ syntax reasonably and BMX quite well but just not sure how to put them together?

If anyone can help with any off this that would be awesome, the main thing I really need and is missing is a wrapper for IParticleScaleAffector which i really need for them to look any good, Once i can start compiling things i'm pretty confident i can work it and happy to share it too.

I'm pretty stuck and don't want to have to use individual billboard particles just to get scaling working because its a lot slower and i would like to add beam scene nodes too which i can do another way but would like to keep it consistent irrlicht style.

Thanks for anything you can offer when you have any free time, I still have plenty of coding to do in the meantime

I've trying to draw directly to screen for drawing antialiased 2d lines, the best way looks like directly drawing to a iTexture and the using MyDriver.Draw2dImage()... to get it on screen, however i've tried the code below but it looks like it must be messing with the memory directly because i see it drawing other textures, switching between random textures and colors? (its messy code atm because i was try multiple things, Sorry). I don't realy have anywhere to upload the example pictures but i could email if you wanted to see the issues when using setpixel()?

    Local Itex:IImage = Mydriver.createImageEmpty(3, _DIMENSION2DI(256, 256))
    Local Col:SColor = _SCOLOR(255, 255, 255, 255)
        
    Local Vect1:Vector2di = Vector2di.createFromVals(Startpos.getX(), Startpos.getY())
    Local Vect2:Vector2di = Vector2di.createFromVals(EndPos.getX(), EndPos.getY())
        
    Local Pos:Position2di = StartPos
    Local Ang:Double = Vect1.getAngleWith(Vect2)
    Local Dist:Double = Vect1.getDistanceFrom(Vect2)
        
    Local SinVal:Double = Sin(Ang)
    Local CosVal:Double = Cos(Ang)
        
    
        Local A:Int
        While A < Dist
            A = A + 1
            Itex.setPixel(Pos.getX(), Pos.getY(), Col, False)
'            
            Pos = _POSITION2DI(Pos.getX() + (SinVal * A), Pos.getY() + (CosVal * A))
        Wend

        Local Texy:ITexture = MyDriver.addTextureFromImage("Tex154679", Itex)
                
                'same as Driver.Draw2dImage() but just includes alpha by default
        MyGUI.DrawFull2DImage(Texy, _POSITION2DI(50, 50))
        
        MyDriver.removeTexture(Texy)
        Itex.drop()

otherwise i've found this code which i think would be better anyway, but i don't know to use the texture.lock() function and how to access the data it provides through the byte ptr? if i could get help converting this for bmax that would be awesome

video::ITexture* t = mesh->getMesh(0)->getMeshBuffer(0)->getMaterial().getTexture(0); 
   video::SColor c = video::SColor(0xFFFF0000); 
   int p = t->getPitch(); 
   video::ECOLOR_FORMAT f = t->getColorFormat(); 
   int z = video::IImage::getBitsPerPixelFromFormat(f) / 8; 
   int m = 0; // can be from 0 to 8 (for texture with size 256x256) 
   void* b = t->lock(false, m); 
   if (b) 
   { 
      for (int x = 0; x < (256 >> m); x++) 
         for (int y = 0; y < (256 >> m); y++) 
            c.getData((unsigned char*)b + y * (p / (1 << m)) + x * z, f); 

      t->unlock(); 
   }

Here some little code to show the context in which I want the window minimum size:

SuperStrict

Import irrlicht.core

Local xmax:Int = 800
Local ymax:Int = 600

Local device:IrrlichtDevice = IrrlichtDevice.Create(EDT_DIRECT3D9, _DIMENSION2DI(xmax, ymax), 32, False, False, True)
Local Driver:IVideoDriver = device.getVideoDriver()
Local scmgr:ISceneManager = device.getSceneManager()

device.setResizable(True)

Local cam:ICameraSceneNode = scmgr.addCameraSceneNode()
cam.SetPosition(_VECTOR3DF(0, 0, -20))
Local cube:IMeshSceneNode = scmgr.addCubeSceneNode()
Local LIGHT:ILightSceneNode = scmgr.addLightSceneNode(, _VECTOR3DF(-5, 10, -5))

scmgr.setAmbientLight(_SCOLORF(0.1, 0.1, 0.1))
scmgr.setActiveCamera(cam)

While(device.run())
    Local rot:Vector3df = cube.GetRotation()
    rot.PlusEq(_VECTOR3DF(1, 1, 1))
    cube.SetRotation(rot)
    
    xmax = Driver.getScreenSize().getWidth()
    ymax = Driver.getScreenSize().getHeight()
    cam.setAspectRatio(xmax / Float(ymax))
    
    Driver.BeginScene()
    scmgr.drawAll()
    Driver.EndScene()
    device.setWindowCaption(Driver.getFPS() + " FPS, close me by pressing <Alt>+<F4>")
Wend

device.drop()

For the program I'm writing it's important that the window can't be smaller than 400*300 or sth. like this. I didn't find anything in the internet concerning this topic so I'm asking here for help.

I'm trying to get ONETEXTURE_BLEND working with sprites so i can set the alpha of scenenodes with textures that have alpha as well, I've got the below code off the irrilich forums which is easiest enough to convert to BMax however i'm not sure if the function pack_texureBlendFunc or equivilent exists in the BMax wrapper, is it missing or is the it just located somewhere else?

Thanks,

::SetAlpha( f32 alpha )
{
   // transparent?
   if( alpha < 1.0 )
      parent.GetSceneManager().registerNodeForRendering( meshSceneNode, ESNRP_TRANSPARENT );
   else
      parent.GetSceneManager().registerNodeForRendering( meshSceneNode, ESNRP_SOLID );
   
   // set the alpha
   for( int i=0; i < meshSceneNode->getMaterialCount(); i++ )
   {
      // get the material
      video::SMaterial &material = meshSceneNode->getMaterial(i);
      material.MaterialType = video::EMT_ONETEXTURE_BLEND;
      material.MaterialTypeParam = video::pack_texureBlendFunc( video::EBF_SRC_ALPHA, video::EBF_ONE_MINUS_SRC_ALPHA, video::EMFN_MODULATE_1X );
      material.Lighting = true;
      material.ZWriteEnable = true;
      material.DiffuseColor.setAlpha(alpha*255);
   }

is it possible to mix iB3D with normal underlying Irrlicht commands, such as if you wanted to play with the scene manager or add things otherwise not within iB3D

Also, Is there an ANIMATE command in iB3D? I see that there's a LoadAnimMesh but i can't find any way to play an animation...

Type MyShaderCallBack Extends IShaderConstantSetCallBack
    Field fLightStrength1:Float
    Field fLightStrength2:Float
    Field fLightStrength3:Float
    Field fLightStrength4:Float
    
    Field fvLightPosition1:Float[3]
    Field fvLightPosition2:Float[3]
    Field fvLightPosition3:Float[3]
    Field fvLightPosition4:Float[3]
    
    Field fvLightColor1:Float[4]
    Field fvLightColor2:Float[4]
    Field fvLightColor3:Float[4]
    Field fvLightColor4:Float[4]
    
    Field fvAmbientColor:Float[4]
    
    Field fSpecularPower:Float = 0.0        'S=pow(fDiffuseIntensity,fSpecularPower)*fSpecularStrength;
    Field fSpecularStrength:Float = 0.0    'will result in less glossing surfaces
    Field fBumpStrength:Float = 0.8        'strength of the bumpmapping.. higher values will result in more "bumpy" surfaces 
    
    Method OnSetConstants(services:IMaterialRendererServices,userdata:Int)
        Local driver:IVideoDriver = services.getVideoDriver()
        
        Local var0:Float = 0
        Local var1:Float = 1
        
        services.setPixelShaderConstantFromName("baseMap", Varptr var0, 1)
        services.setPixelShaderConstantFromName("bumpMap", Varptr var1, 1)
        
        Local invWorld:matrix4 = driver.getTransform(ETS_WORLD)
        invWorld.makeInverse()
        services.setPixelShaderConstantFromName("matWorldInverse", invWorld.pointer(), 16)
        
        services.setPixelShaderConstantFromName("fLightStrength1", Varptr(fLightStrength1), 1)
        services.setPixelShaderConstantFromName("fLightStrength2", Varptr(fLightStrength2), 1)
        services.setPixelShaderConstantFromName("fLightStrength3", Varptr(fLightStrength3), 1)
        services.setPixelShaderConstantFromName("fLightStrength4", Varptr(fLightStrength4), 1)
        
        services.setPixelShaderConstantFromName("fvLightPosition1", Varptr(fvLightPosition1)[0], 3)
        services.setPixelShaderConstantFromName("fvLightPosition2", Varptr(fvLightPosition2)[0], 3)
        services.setPixelShaderConstantFromName("fvLightPosition3", Varptr(fvLightPosition3)[0], 3)
        services.setPixelShaderConstantFromName("fvLightPosition4", Varptr(fvLightPosition4)[0], 3)
        
        services.setPixelShaderConstantFromName("fvAmbient", Varptr(fvAmbientColor)[0], 4)
        services.setPixelShaderConstantFromName("fvLight1Color", Varptr(fvLightColor1)[0], 4)
        services.setPixelShaderConstantFromName("fvLight2Color", Varptr(fvLightColor2)[0], 4)
        services.setPixelShaderConstantFromName("fvLight3Color", Varptr(fvLightColor3)[0], 4)
        services.setPixelShaderConstantFromName("fvLight4Color", Varptr(fvLightColor4)[0], 4)
        
        services.setPixelShaderConstantFromName("fSpecularPower", Varptr(fSpecularPower), 1)
        services.setPixelShaderConstantFromName("fSpecularStrength", Varptr(fSpecularStrength), 1)
        services.setPixelShaderConstantFromName("fBumpStrength", Varptr(fBumpStrength), 1)
    EndMethod

    ' we must override the generate function in order for instantiation to work properly
    Function generate:IShaderConstantSetCallBack()
        Return New MyShaderCallBack
    EndFunction
EndType

This is what I've done:

1. Built the libIrrlicht.a in xcode

2. Copied the irrlicht.mod to blitzmax/mod/ folder

3. Copied the libIrrlicht.a file to core.mod folder (this replaced the one currently there).

4. Renamed the libIrrlicht.a to libIrrlichtMac.a

5. Started Blitzmax IDE, selected Rebuild All Modules

After doing all this, none of the examples work.

Running any example gives me pages of warnings then a final build error of: Build Error: Failed to link /Applications/BlitzMax/mod/irrlicht.mod/examples/01.HelloWorld/01.helloworld.debug.app/Contents/MacOS/01.helloworld.debug

I also tried compiling core.bmx only to recieve "module does not match commandline module" and highlights the line "Module Irrlicht.Core"

Thanks!

Is it possible to create a custom GUI skin with the latest GMan Irrlicht mod (1.71+)?

If so, how?

Thanks.

ps  (I already have the custom guiskin.cfg and the associated graphics files).

Now the problem:
I want to manipulate a loaded terrain (from an image for example), but how can I do this? It would be nice if there would be such a simple thing as the terrain modify-comand in blitz3d (ModifyTerrain(terrain,x,y,height#)). But I can't find something like this and to work using the vertex-comands seems to be very difficult .
Any ideas? Is it an issue of Irrlicht or of your wonderful wrapper?

Hope you can help me,
lobby