engine/renderers/blender_3d_script.py

import bpy
import json
import sys
from pathlib import Path

def setup_3d_scene(img_path, depth_path, out_path, strength=1.5):
    # Nettoyage
    bpy.ops.wm.read_factory_settings(use_empty=True)
    
    # 1. Plane
    bpy.ops.mesh.primitive_plane_add(size=10)
    plane = bpy.context.object
    plane.rotation_euler[0] = 1.5708 # 90 degrees on X (Vertical)
    
    # 2. Subdivision
    subdiv = plane.modifiers.new(name="Subdiv", type='SUBSURF')
    subdiv.subdivision_type = 'SIMPLE'
    subdiv.levels = 4
    subdiv.render_levels = 6
    
    # 3. Displace
    tex = bpy.data.textures.new('DepthTex', type='IMAGE')
    tex.image = bpy.data.images.load(depth_path)
    
    disp = plane.modifiers.new("Displace", type='DISPLACE')
    disp.texture = tex
    disp.strength = strength
    
    # 4. Material
    mat = bpy.data.materials.new(name="DarkMediaMat")
    mat.use_nodes = True
    nodes = mat.node_tree.nodes
    links = mat.node_tree.links
    nodes.clear()
    
    node_tex = nodes.new('ShaderNodeTexImage')
    node_tex.image = bpy.data.images.load(img_path)
    node_bsdf = nodes.new('ShaderNodeBsdfPrincipled')
    node_out = nodes.new('ShaderNodeOutputMaterial')
    
    links.new(node_tex.outputs['Color'], node_bsdf.inputs['Base Color'])
    links.new(node_bsdf.outputs['BSDF'], node_out.inputs['Surface'])
    plane.data.materials.append(mat)
    
    # 5. Camera & Light
    bpy.ops.object.camera_add(location=(0, -20, 0), rotation=(1.5708, 0, 0))
    bpy.context.scene.camera = bpy.context.object
    
    bpy.ops.object.light_add(type='SUN', location=(5, -15, 10))
    
    # 6. Render Settings
    scene = bpy.context.scene
    scene.render.resolution_x = 1080
    scene.render.resolution_y = 1920
    scene.render.filepath = out_path
    
    bpy.ops.render.render(write_still=True)

if __name__ == "__main__":
    argv = sys.argv
    if "--" in argv:
        argv = argv[argv.index("--") + 1:]
        setup_3d_scene(argv[0], argv[1], argv[2])