------------------------- Sasami QUICK REFERENCE -----------------------------


CONTENTS OF THIS QUICK REFERENCE:

1. Controlling the Sasami window
2. Syntax
3. Commands
4. Variables
5. More information

NB Syntax elements in (parentheses) are required, in [square brackets]
are optional.  (Parentheses are used rather than the angle brackets usual
in BNF due to problems with using angle brackets in HTML).


-- 1. CONTROLLING THE SASAMI WINDOW ------------------------------------------

Hold down a mouse button and drag the contents of the Sasami window:

  Rotate about X & Y axes:
    - left (or only) mouse button drag
  Move camera position in XY plane:
    - middle mouse button (no 2) drag, or
    - hold Control key and drag with left (only?) mouse button
  Zoom in and out on Z axis:
    - right mouse button (no 3) drag, or
    - hold Command/Apple/Mod1 key and drag with left (only?) mouse button


-- 2. SYNTAX -----------------------------------------------------------------

No semi-colons: line feeds are terminators

# UNIX shell style one-line comments

Whitespace and commas are command / parameter separators

Escaping to Eden: ` (back-tick) is a one-line escape to Eden.


-- 3. COMMANDS ---------------------------------------------------------------

open_display
close_display

vertex (vertex name) (x) (y) [z]

polygon (polygon name)
poly_geom_vertex (polygon name) (vertex names)
poly_tex_vertex (polygon name) (vertex names)
poly_colour (polygon name) (r) (g) (b) [a]
poly_material (polygon name) (material name)

material (material name)
material_ambient (material name) (r) (g) (b) [a]  (ambient = in darkness)
material_diffuse (material name) (r) (g) (b) [a]  (diffuse = in normal light)
material_specular (material name) (r) (g) (b) [a] (specular = in direct light)
material_texture (material name) (texture name)

object (object name)
object_poly (object name) (polygon names)
object_pos (object name) (x) (y) (z)
object_rot (object name) (x) (y) (z)
object_scale (object name) (x) (y) (z)

light (light name)
light_pos (light name) (x) (y) (z)
light_enabled (light name) (light state)
light_directional (light name) (light state)
light_attenuation (light name) (attenuation factor)
light_ambient (light name) (r) (g) (b) [a]
light_diffuse (light name) (r) (g) (b) [a]
light_specular (light name) (r) (g) (b) [a]

load_full_obj (name prefix) (filename)
load_obj (name prefix) (filename) (loads only objects and materials into Eden)

bgcolour (r) (g) (b)

viewport (x size) (y size)


-- 4. VARIABLES --------------------------------------------------------------

sasami_viewport_xsize
sasami_viewport_ysize
sasami_viewport_bpp

sasami_bgcolour_r
sasami_bgcolour_g
sasami_bgcolour_b

sasami_show_axes

sasami_camera_scale

sasami_camera_rotthentrans

sasami_camera_frustum_left
sasami_camera_frustum_right
sasami_camera_frustum_bottom
sasami_camera_frustum_top
sasami_camera_frustum_near
sasami_camera_frustum_far

sasami_camera_reset()


-- 5. MORE INFORMATION -------------------------------------------------------

See http://go.warwick.ac.uk/EDEN/ for more detail.
