360 map for offline rendering of an existing heavy scene

OfflineImmersiveRenderingAsBrowsable360Images.py

# 360 map for offline rendering of an existing heavy scene

"""

example of player https://vatelier.net/MyDemo/Browsable360s/

improvement
- have an example WITHOUT a mesh in the middle creating a black screen, duh
- fading in/out with a bit of virtual camera movement for target loading
- stero renders
- using a shader to do the warping, preloading the neirhbours, etc
- motion estimation to compress
- link parameters between the Blender script and the WebVR page (e.g position, rotation, scale)
- generate the "player" also
- teleport controls and a grid with no depthtest (swap with a low res version then swap as transition)
- depth texture to manage occlusion/physical limitation
- continuous render densification (gradually increasing the number of renders up to a certain upper limit in time, cycles or size)

"""

import bpy

bpy.context.scene.render.engine = 'CYCLES'
bpy.context.scene.cycles.device = 'GPU'

bpy.ops.object.select_camera()
bpy.context.object.data.type = 'PANO'
#bpy.context.scene.file_format = 'JPEG'
bpy.context.object.data.lens = 5

bpy.context.scene.render.resolution_percentage = 100
bpy.context.object.data.cycles.panorama_type = 'EQUIRECTANGULAR'

print('Rendering in: '+bpy.app.tempdir)

preview = True
full = True

bpy.context.object.location = (-2, 0, 1)
for i in range(0,5):
    bpy.ops.transform.translate(value=(1, 0, 0))       
    for j in range(0,5):
        bpy.ops.transform.translate(value=(0, 1, 0))   
        x = str(round(bpy.context.object.location[0]))
        y = str(round(bpy.context.object.location[1]))
        z = str(round(bpy.context.object.location[2]))
        
        if full:
            bpy.context.scene.render.resolution_x = 2048
            bpy.context.scene.render.resolution_y = 1024
            bpy.data.scenes['Scene'].render.filepath = bpy.app.tempdir+'image_'+x+'_'+y+'_'+z+'.jpg'
            bpy.ops.render.render( write_still=True ) 
        
        if preview:
            bpy.context.scene.render.resolution_x = 512
            bpy.context.scene.render.resolution_y = 256
            bpy.data.scenes['Scene'].render.filepath = bpy.app.tempdir+'preview_'+x+'_'+y+'_'+z+'.jpg'
            bpy.ops.render.render( write_still=True )            
            
        if (j == 4):
            bpy.ops.transform.translate(value=(0, -5, 0))