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Thread: M15 - reimplementation via GBuffers

  1. #21
    thinBasic MVPs Michael Hartlef's Avatar
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    There are X to md2 converter out there.

  2. #22
    Hi

    I use fragmotion

  3. #23
    loading M15 models from memory is a fun thing, here is loading a textured box using :
    Dim model(2) As m15Model
    
    String memoryBuffer = FILE_Load(APP_SourcePath + "box.M15") 
    For i=1 To 2
    model(i).FromMemory(memoryBuffer) 
    Next
    
    still i don't know how to access one vertex and change its positions, colors, normals and UV values at run time
    while the usual M15 have many functions such as TBGL_m15SetVertexXYZ and so on.

    Uses "tbgl"
    
    #INCLUDE "m15Model/m15Model.tbasicu" ' -- can be just m15Model.tbasicu, depends where your code is :]
    
    Long i, wireframe
    
    Single y, x, z
    
    DWord hWnd = TBGL_CreateWindowEx("press 'W' for wire/solid Frame .... press ESC to quit", 800, 600, 32, 0) 
    TBGL_ShowWindow
    
    Dim model(2) As m15Model
    
    String memoryBuffer = FILE_Load(APP_SourcePath + "box.M15") 
    For i=1 To 2
    model(i).FromMemory(memoryBuffer) 
    Next
    
    TBGL_LoadTexture APP_SourcePath+"color.bmp", 1, %TBGL_TEX_MIPMAP    ' Loads texture as #1, with high quality
    TBGL_UseTexturing %TRUE           ' I want to use textures
    TBGL_BindTexture 1    
      
    TBGL_ResetKeyState
    
    TBGL_UseLighting TRUE
    TBGL_UseLightSource %GL_LIGHT0, 1 
    
    
    While TBGL_IsWindow(hWnd)
    If TBGL_GetWindowKeyOnce( hWnd, %VK_W) Then
    wireframe = Not wireframe
    TBGL_PolygonLook IIf(wireframe, %GL_LINE, %GL_FILL) 
    End If
    
    TBGL_ClearFrame
    TBGL_Camera 0, 40, 60, 0, 0, 0
    
    TBGL_Rotate GetTickCount/40 , 0, 1, 0
    
    TBGL_Translate  -10, 0, 0.7 
    model(1).render    
    TBGL_Translate  20, 0, 0.7 
    model(2).render
    
    TBGL_DrawFrame
    
    If TBGL_GetWindowKeyState( hWnd, %VK_ESCAPE) Then Exit While
    
    Wend
    
    TBGL_DestroyWindow
    
    download : code+box model+texture+m15 units
    Attached Files Attached Files
    Last edited by primo; 01-03-2017 at 14:09.

  4. #24
    Super Moderator Petr Schreiber's Avatar
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    Hi Primo,

    what a joy to see you using the header I will think about how I can add this direct manipulation to the unit, stay tuned!


    Petr
    Learn 3D graphics with ThinBASIC, learn TBGL!
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  5. #25
    Super Moderator Petr Schreiber's Avatar
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    Primo,

    I was thinking how to improve current approach, how to do batched changes more efficientely.
    This is what I came up with, not yet implemented:
    dim vertices as m15VertexEnumerator(model)
    
    model.BeginWrite()
    
      model.SetVertexPos(vertices.first, 1, 2, 3) ' -- Sets coordinates of 1, 2, 3 to the first vertex
      model.SetVertexColor(vertices.first, 255, 255, 255) ' -- Sets white color to the first vertex
    
      model.SetVertexColor(vertices.firstPolygon, 255, 255, 255) ' -- Sets white color to vertices of the first polygon
    
      model.SetVertexColor(vertices.nthPolygon(2), 255, 255, 255) ' -- Sets white color to vertices of the second polygon
    
      model.SetVertexColor(vertices.all, 255, 255, 255) ' -- Sets white color to all vertices
    
    model.EndWrite()
    
    I think it could result in more readable code, with less FOR/NEXTing.


    Petr
    Learn 3D graphics with ThinBASIC, learn TBGL!
    Windows 7 64bit - Intel Core 2 Duo T6600 @ 2.2GHz - 4 GB RAM - NVIDIA GeForce G210M 512MB
    Windows 8 64bit - Intel Core i5-3350P @ 3.1GHz - 8 GB RAM - NVIDIA GeForce GT640 3GB

  6. #26
    Hi Petr
    seems goods choices, i suggest also something like this:
    model.SetVertexPos(vertices.nthVertex(37), 20, 50, -10)
    will change the vertex number 37 coordinates to 20, 50, -10
    if everything is okay, then i think adding it to the official thinbasic distribution will be great. like adding before the StringBuilder .
    regards

    edit: model.SetVertexPos(vertices.nthPolygon(6), 10,30, 10)
    could it be possible !! in which the polygon coordinates is the coord of its center.
    it is like : model.SetVertexColor(vertices.nthPolygon(2), 255, 255, 255)

    edit2: i think model.SetVertexPos(vertices.nthPolygon(6), 10,30, 10) is not necessary, since it is a programmer task to get every polygon vertices and do what he wants.
    Last edited by primo; 12-03-2017 at 16:05.

  7. #27
    Super Moderator Petr Schreiber's Avatar
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    Thank you Primo,

    I will have a look at it


    Petr
    Learn 3D graphics with ThinBASIC, learn TBGL!
    Windows 7 64bit - Intel Core 2 Duo T6600 @ 2.2GHz - 4 GB RAM - NVIDIA GeForce G210M 512MB
    Windows 8 64bit - Intel Core i5-3350P @ 3.1GHz - 8 GB RAM - NVIDIA GeForce GT640 3GB

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