B4A Library ThreeD library (alpha 0.04)

alienhunter said:

Hi Markus ,
should this code not draw a triangle , instead of a line ?

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MarkusR said:

hi,
its because the draw mode, i had add for you
Surface1.SetTypeLineStrip
Surface1.SetTypeLineLoop

typical line mode is from to from to from to

see gl constants
GL_LINES
GL_LINE_STRIP
GL_LINE_LOOP

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alienhunter said:

Markus ,that is awesome , thank you very much
how would you draw a shaded disk like that , or anything round
i assume only with SetTypeLineLoop
i could not find anything else
also please if you have time can we have cullface

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alienhunter said:

Hi Markus

can we have this if possible , rotate/scale/Translate , with not rebuilding the scene ?
or i am missing something
thanks again for your lib

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alienhunter said:

Markus ,
thank you for your support , I think that is all what i needed for now
i will start building my stuff and let you know on this thread.
Just in case if there a Tochevent in Opengl ES, like selecting the item ?
Thank you /Vielen Dank fuer deine Hilfe
Gruss
AH

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alienhunter said:

... this is my first CNC code produced ...

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MarkusR said:

nice, it seems you put a lot of work in this cnc tool.

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MarkusR said:

hello,
i publish a 3D library to using at a b4a project (android 5.x+ phone or tablet)

View attachment 66700 View attachment 66692 View attachment 66693

currently it knows:
Camera
Light
Cube
Vector,Color,Texture
Entity,Mesh,Surface,Vertex
Line (at Surface)

01.02.2019 21:00
OpenGL.zip is my test project.

03.02.2019 19:00
ThreeD.zip is the lib to place unzipped in additional libraries folder.

base of the ThreeD library is a Project in Android Studio 3.3
(which was compiled with SimpleLibraryCompiler)

to do:
line order in grid because lighting
(anytime switch to GLES 3.0 or 3.1 but it is completely different)

note: my android emulator does not show alpha blending!

ThreeD

Author: Markus Rauch
Version: 0.04

• • Functions:
    • clone As Object
    • compareTo (arg0 As E) As Int
    • equals (arg0 As Object) As Boolean
    • finalize
    • hashCode As Int
    • name As String
    • ordinal As Int
    • toString As String
    • valueOf (name As String) As com.rauch.threedimensional.Surface.ETyp
    • values As com.rauch.threedimensional.Surface.ETyp()
  • Properties:
    • DeclaringClass As Class [read only]
• Camera
  • Fields:
    • ID As String
    • Position As Vector
    • PositionLookAt As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • ClearMeshes
    • ListMeshes As java.util.List
• Color
  • Fields:
    • Alpha As Float
    • Blue As Float
    • Green As Float
    • Red As Float
  • Functions:
    • Set (Red As Float, Green As Float, Blue As Float, Alpha As Float)
      set the color red,green,blue,alpha
      all r g b a values from 0.0 to 1.0
      Red: 0.0 to 1.0
      Green: 0.0 to 1.0
      Blue: 0.0 to 1.0
      Alpha: 0.0 to 1.0 (1.0 = visible)
• Cube
  • Fields:
    • ID As String
    • Position As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • ClearMeshes
    • ListMeshes As java.util.List
    • Set (Position As Vector, Length As Float, Width As Float, Height As Float, Color1 As Color)
      create a cube
      Position:
      Length:
      Width:
      Height:
      Color1:
    • SetColor (Red As Float, Green As Float, Blue As Float, Alpha As Float)
      colorize the cube
      (a cube with texture should be white)
      Red:
      Green:
      Blue:
      Alpha:
    • SetColorFaces (Color1 As Color, Color2 As Color, Color3 As Color, Color4 As Color, Color5 As Color, Color6 As Color)
      colorize each face of the cube
      Color1:
      Color2:
      Color3:
      Color4:
      Color5:
      Color6:
    • SetTexture (Bitmap1 As android.graphics.Bitmap)
      give the cube an bitmap/texture for all faces
      Example:<code>Dim bmp As Bitmap = LoadBitmap(File.DirAssets,"wood.png")
      Cube1.SetTexture(bmp)</code>
      Bitmap1:
• Entity
  • Fields:
    • ID As String
    • Position As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • ClearMeshes
    • ListMeshes As java.util.List
• Light
  • Fields:
    • ID As String
    • Position As Vector
    • PositionLookAt As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • ClearMeshes
    • ListMeshes As java.util.List
    • SetPosition (Position As Vector)
    • SetPositionLookAt (PositionLookAt As Vector)
• Line
  • Fields:
    • Color1 As Color
    • ID As String
    • Position As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • ClearMeshes
    • GetP1 As Vector
    • GetP2 As Vector
    • ListMeshes As java.util.List
    • Set (P1 As Vector, P2 As Vector)
    • SetColor (Red As Float, Green As Float, Blue As Float, Alpha As Float)
    • SetColorObj (Color1 As Color)
    • SetP1 (X As Float, Y As Float, Z As Float)
    • SetP12 (X1 As Float, Y1 As Float, Z1 As Float, X2 As Float, Y2 As Float, Z2 As Float)
    • SetP2 (X As Float, Y As Float, Z As Float)
• Mesh
  • Fields:
    • ID As String
    • Position As Vector
    • Rotate As Vector
    • Scale As Vector
  • Functions:
    • AddMesh (m As Mesh)
    • AddSurface (s As Surface)
    • ClearMeshes
    • ClearSurfaces
    • ListMeshes As java.util.List
    • ListSurfaces As java.util.List
• Surface
  • Fields:
    • Color1 As Color
  • Functions:
    • AddLine (v1 As Vertex, v2 As Vertex)
    • AddQuad (v1 As Vertex, v2 As Vertex, v3 As Vertex, v4 As Vertex)
      (GL_TRIANGLE_STRIP)
      v1:
      v2:
      v3:
      v4:
    • AddTriangle (v1 As Vertex, v2 As Vertex, v3 As Vertex)
    • AddVertex (v As Vertex)
    • ClearVertices
    • ListVertices As java.util.List
    • SetColor (Red As Float, Green As Float, Blue As Float, Alpha As Float)
      colorize the surface
      (a surface with texture should be white)
      Red: 0 to 1
      Green: 0 to 1
      Blue: 0 to 1
      Alpha: 0 to 1 (1 visible)
    • SetTexture (Bitmap1 As android.graphics.Bitmap)
      give the surface an bitmap/texture
      Example:<code>Dim bmp As Bitmap = LoadBitmap(File.DirAssets,"wood.png")
      Surface1.SetTexture(bmp)</code>
      Bitmap1:
    • SetType (Type As com.rauch.threedimensional.Surface.ETyp)
      set the surface typ LINES,TRIANGLES,TRIANGLE_STRIP (default is TRIANGLES)
      Type:
    • SetTypeLineLoop
    • SetTypeLines
    • SetTypeLineStrip
    • SetTypeTriangles
    • SetTypeTriangleStrip
• ThreeDimensional
  • Fields:
    • CameraFar As Float
    • CameraFieldOfViewY As Float
    • CameraNear As Float
    • CullBackFace As Boolean
    • LineWidth As Float
  • Functions:
    • AddCube (Cube1 As Cube)
      use AddEntity
    • AddCube2 (x As Float, y As Float, z As Float, l As Float, w As Float, h As Float, r As Float, g As Float, b As Float, a As Float)
      use AddEntity
    • AddEntity (Entity1 As Entity)
      add a entity to your scene camera,light,cube,line,...
      (use in pause mode)
    • CreateCubeWireframe (Position As Vector, Length As Float, Height As Float, Width As Float, Color1 As Color) As Entity
      create a cube with lines
      Position: X,Y,Z
      Length: (X)
      Height: (Y)
      Width: (Z)
      Color1: Object
      Return type: @return:new Entity
    • CreateEntityAxis (Position As Vector, Length As Float, ColorX As Color, ColorY As Color, ColorZ As Color) As Entity
      create a 3d axis Entity with lines
      use returned Entity at AddEntity to add it into scene object list
      Position:
      Length:
      ColorX:
      ColorY:
      ColorZ:
      Return type: @return:new Entity
    • CreateEntityGridXZ (Size As Float, Step As Float, Color1 As Color) As Entity
      create a ground grid entity step ? unit
      use at AddEntity
      Size: X and Z = -Size to Size Step ?
      Step: Gap
      Color1:
      Return type: @return:new Entity
    • Init (Activity1 As Activity) As View
      define the 3d class and add the surface view to a activity
      also add pause and resume
      in pause mode or before it run you can set your scene
      Example:<code>
      Sub Process_Globals
      Dim Three As ThreeDimensional
      Sub Activity_Create(FirstTime As Boolean)
      Activity.AddView( Three.Init(GetActivity),0%x,0%y,100%x,100%y)
      Sub Activity_Resume
      Three.Resume
      Sub Activity_Pause(UserClosed As Boolean)
      Three.Pause
      Sub GetActivity As Object
      Dim R As Reflector
      Return R.GetActivity
      End Sub</code>
      Activity1:
      Return type: @return:View
    • Lerp (a As Float, b As Float, t As Float) As Float
      lerp interpolates from one value (a) to another (b) over a given range (t)
      a:
      b:
      t: is clamped between 0 and 1
      Return type: @return:
    • mm_to_m (mm As Float) As Float
      millimeter to meter
      mm:
      Return type: @return:m
    • Pause
      pause the renderer
    • Resume
      resume the renderer
    • Scene1
      test scene 1
    • Scene1New
      test scene 1 new
    • SceneDefault (camx As Float, camy As Float, camz As Float, centerx As Float, centery As Float, centerz As Float)
      scene with camera and light
      camera position and look at center point
      camx:
      camy:
      camz:
      centerx:
      centery:
      centerz:
    • SceneEmpty
      clear the scene list
      (use in pause mode)
    • SearchEntity (ID As String) As Object
      search in scene object list by id
      ID:
      Return type: @return:Entity Object
• Vector
  • Fields:
    • X As Float
    • Y As Float
    • Z As Float
  • Functions:
    • Add (V As Vector)
      Add a Vector to it
      V:
    • Direction (A As Vector, B As Vector) As Vector
      static function return a normalized direction vector from 2 positions
      A:
      B:
      Return type: @return:direction Vector
    • Set (X As Float, Y As Float, Z As Float)
      set the vector x,y,z
      X:
      Y:
      Z:
• Vertex
  • Fields:
    • Normal As Vector
    • Position As Vector
    • TextureUVW As Vector

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Khairy Abdelhamid said:

Dear Eng. Markus
Greetings,
Is the library any way to find "what object that I catch/clicked on the view" ??
Or " find the location of click/double-click say in the view (3D position) " ??
Best regards

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