# Mako: orthographic Workbench renders framed exactly like the reference sheet's panels (exec'd in Blender), for
# build/mk_compare.py, which lays them over the sheet. 1 render pixel per sheet pixel. TOP and SIDE at the build's scale S;
# FRONT and REAR are drawn about 7 % larger on the sheet (pods 295 px there, 276 px in TOP), so they use FS.
import bpy, math, os
from mathutils import Vector, Matrix
HERE = r"D:\HADAL - The Descent\models\tender-mako\build"
exec(open(os.path.join(HERE, "mk_measure.py")).read())
OUTD = os.path.join(os.path.dirname(HERE), "previews", "compare")
os.makedirs(OUTD, exist_ok=True)
K = 1
FS = 0.0070
VIEWS = {   # name: (sheet box x0, y0, x1, y1), metres per px, camera centre in the model, right, up, forward
    "top":   ((30, 40, 970, 520), S, lambda bx, by: Vector(((by - TOP_CY) * S, Yi(bx), 0)), (0, 1, 0), (-1, 0, 0), (0, 0, -1)),
    "side":  ((30, 530, 970, 1065), S, lambda bx, by: Vector((0, Yi(bx), Zi(by))), (0, 1, 0), (0, 0, 1), (-1, 0, 0)),
    "front": ((970, 30, 1410, 530), FS, lambda bx, by: Vector(((bx - 1185) * FS, 0, 1.03 + (150 - by) * FS)), (1, 0, 0), (0, 0, 1), (0, 1, 0)),
    "rear":  ((960, 545, 1410, 1030), FS, lambda bx, by: Vector((-(bx - 1188) * FS, 0, 1.03 + (645 - by) * FS)), (-1, 0, 0), (0, 0, 1), (0, -1, 0)),
}
sc = bpy.context.scene
sc.render.engine = 'BLENDER_WORKBENCH'
sh = sc.display.shading
sh.light = 'STUDIO'; sh.color_type = 'MATERIAL'; sh.show_object_outline = True; sh.object_outline_color = (0, 0, 0)
sh.show_cavity = True
sc.render.film_transparent = True
sc.render.image_settings.file_format = 'PNG'; sc.render.image_settings.color_mode = 'RGBA'
cam = bpy.data.objects.get("_cmp_cam")
if cam is None:
    cam = bpy.data.objects.new("_cmp_cam", bpy.data.cameras.new("_cmp_cam"))
    sc.collection.objects.link(cam)
cam.data.type = 'ORTHO'; cam.data.clip_start = 0.01; cam.data.clip_end = 100
prev_cam = sc.camera
sc.camera = cam
hide = [o for o in bpy.data.objects if o.name.startswith(("SM_Mako_Cabin", "UCX_"))]
for o in hide:
    o.hide_render = True
for name, (box, mpp, cfun, right, up, fwd) in VIEWS.items():
    x0, y0, x1, y1 = box
    w, h = (x1 - x0), (y1 - y0)
    c = cfun((x0 + x1) / 2, (y0 + y1) / 2)
    R, U, F = Vector(right), Vector(up), Vector(fwd)
    m = Matrix((R, U, -F)).transposed().to_4x4()
    m.translation = c - F * 20
    cam.matrix_world = m
    sc.render.resolution_x, sc.render.resolution_y = w * K, h * K
    sc.render.resolution_percentage = 100
    cam.data.ortho_scale = max(w, h) * mpp
    sc.render.filepath = os.path.join(OUTD, "r_%s.png" % name)
    bpy.ops.render.render(write_still=True)
for o in hide:
    o.hide_render = False
sc.camera = prev_cam
bpy.data.objects.remove(cam)
result = sorted(os.listdir(OUTD))