Short:        3D solid modeler based on OpenCASCADE
Author:       papiosaur2@hotmail.fr
Uploader:     papiosaur2@hotmail.fr
Type:         gfx/3d
Version:      0.3
Architecture: ppc-morphos


Modulo is a 3D solid modeler for MorphOS, built on the OpenCASCADE
Technology (OCCT) geometry kernel. It uses a MUI interface with a
3D viewport that renders in software (works everywhere) or, optionally,
hardware-accelerated through TinyGL / Warp3D.


FEATURES

  Modeling (OCCT kernel)
    - Primitives: box, sphere, cylinder, cone, torus, wedge
                  (with editable dimensions on creation)
    - Boolean:   fuse, cut, common (between two selected objects)
    - Modify:    fillet, chamfer, shell (hollow), linear/circular array
    - Transform: move, rotate, scale, mirror, duplicate
    - Measure:   exact volume, surface area and center of mass
    - Properties panel: editable X/Y/Z position and W/H/D size of the
                 selected object (type in the field or use the wheel)

  Files
    - Native project format: BREP (exact OpenCASCADE B-rep geometry)
    - STEP (AP214) import and export - exact geometry, CAD interchange
    - Export: STL (ASCII), OBJ
    - Import: STL (ASCII + binary, auto-detected), OBJ (with colours)
    - Save / Save As, current-file title with a modified marker
    - Drag & drop: drop a .brep / .step / .stl / .obj icon to load it

  Viewport
    - Software renderer (z-buffered, double-buffered, flicker-free) OR
      hardware TinyGL (View / Hardware) with orthographic or perspective
    - Ground grid and X/Y/Z world axes
    - Shaded, wireframe and HLR (technical line) modes
    - Backface culling and edge clipping
    - Preset views, zoom, pan, fit


MOUSE

    Left button drag ....... rotate
    Middle button drag ..... pan
    Mouse wheel ............ zoom


KEYBOARD (Right-Amiga + key)

    O .... Open                1 .... Front view
    S .... Save                2 .... Top view
    Q .... Quit                3 .... Right view
    M .... Measure             4 .... Isometric view
    + .... Zoom in             F .... Fit
    - .... Zoom out            R .... Reset view


INSTALLATION

  Copy the "Modulo" executable anywhere. The "models" drawer holds
  sample 3D objects (box, tetrahedron, octahedron, icosahedron, torus)
  in OBJ and STL formats for testing import and drag & drop.


NOTES

  Importing an STL or OBJ produces a mesh only (no exact B-rep), so
  "Save BREP" stays disabled until the object is rebuilt from a
  primitive or a boolean operation.


REGISTRATION & DONATION

  Modulo is donationware. The demo lets you try every feature; only the
  file outputs are reserved for registered users:
    - Saving (BREP) and exporting (STEP / STL / OBJ) are demo-disabled.
    - Modelling, viewing, measuring and importing are free.
    - The title bar shows "Modulo Demo" until the program is registered.

  Registration is by donation - give what you want, minimum 5 euros.

  PayPal : papiosaur2@hotmail.fr (send as a friend to avoid fees)
  Then email yannick.buchy@gmail.com with your name to receive your
  registered version.


HISTORY

  0.3
    - STEP (AP214) import and export - exact B-rep, CAD interchange.
    - Optional hardware viewport via TinyGL / Warp3D (software stays
      the default), orthographic or perspective projection.
    - Modify tools: chamfer, shell, linear and circular array.
    - Transforms: mirror and duplicate; arrow keys nudge the selection.
    - Editable properties panel (position X/Y/Z and size W/H/D).
    - Numeric dimensions when creating a primitive.
    - Save / Save As with current-file title and modified marker.

  0.2
    - New primitives: cone, torus, wedge.
    - Measure: exact volume, surface area and center of mass.
    - Ground grid and X/Y/Z world axes (toggle).
    - OBJ import now reads per-material colours (usemtl / mtllib).
    - Selected-object X/Y/Z coordinate fields (edit + mouse wheel),
      updated live while dragging.

  0.1
    - First release.
    - BREP save/load, STL and OBJ import/export, drag & drop.
    - Double-buffered software viewport with backface culling and
      clipping, rotate / pan / zoom, preset views, fit and reset.