Code: Select all
AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\BlendLuxCore-master\scripts\LOLStudio.blend
and
Material_Thumbnails.blend
both maybe as good start for Beginners.
They do render fine. With CPU.
With GPU rendering i got first the error that some internal hardware attribute are 4 words and need be 5 words.
The i rendered the Material Thumbnail first, it took some minutes to compile the Kernel and and after that all works fine.
.Also in that folder there is Python Script "Render_Thumbnails.py" that leads here to an error:
Code: Select all
Traceback (most recent call last):
File "..\02_Luxrender Scenes\Studio\material_thumbnail.blend\Text", line 7, in <module>
ModuleNotFoundError: No module named 'BlendLuxCore'Code: Select all
import bpy
import sys
from os import listdir
from os.path import isfile, join, basename, dirname, splitext
from mathutils import Vector, Matrix
from BlendLuxCore.utils.compatibility import run
def select(objects):
bpy.ops.object.select_all(action='DESELECT')
for obj in objects:
obj.select_set(True)
def calc_bbox(context, objects):
bbox_min = [10000, 10000, 10000]
bbox_max = [-10000, -10000, -10000]
deps = bpy.context.evaluated_depsgraph_get()
bpy.ops.object.select_all(action='DESELECT')
for obj in objects:
obj = obj.evaluated_get(deps)
bbox_corners = [obj.matrix_world @ Vector(corner) for corner in obj.bound_box]
for corner in bbox_corners:
bbox_min[0] = min(bbox_min[0], corner[0])
bbox_min[1] = min(bbox_min[1], corner[1])
bbox_min[2] = min(bbox_min[2], corner[2])
bbox_max[0] = max(bbox_max[0], corner[0])
bbox_max[1] = max(bbox_max[1], corner[1])
bbox_max[2] = max(bbox_max[2], corner[2])
return (bbox_min, bbox_max)
def render_material_thumbnail(assetname, blendfile, thumbnail, samples):
context = bpy.context
scene = context.scene
name = basename(dirname(dirname(dirname(__file__))))
user_preferences = context.preferences.addons[name].preferences
with bpy.data.libraries.load(blendfile, link=True) as (mat_from, mat_to):
mat_to.materials = mat_from.materials
mat = mat_to.materials[0]
context.view_layer.objects.active = bpy.data.objects['Luxball']
bpy.data.objects['Luxball'].material_slots[0].material = mat
context.view_layer.objects.active = bpy.data.objects['Luxball ring']
bpy.data.objects['Luxball ring'].material_slots[0].material = mat
run()
context.scene.view_settings.gamma = 1
context.scene.view_settings.exposure = 1
context.scene.view_settings.look = 'Very High Contrast'
context.scene.luxcore.halt.enable = True
context.scene.luxcore.halt.use_samples = True
context.scene.luxcore.halt.samples = int(samples)
context.scene.render.image_settings.file_format = 'JPEG'
context.scene.render.filepath = thumbnail
bpy.ops.render.render(write_still=True)
def render_model_thumbnail(assetname, blendfile, thumbnail, samples):
context = bpy.context
scene = context.scene
name = basename(dirname(dirname(dirname(__file__))))
user_preferences = context.preferences.addons[name].preferences
with bpy.data.libraries.load(blendfile, link=True) as (data_from, data_to):
data_to.objects = [name for name in data_from.objects]
# Add new collection, where the assets are placed into
col = bpy.data.collections.new(assetname)
# Add parent empty for asset collection
main_object = bpy.data.objects.new(assetname, None)
main_object.instance_type = 'COLLECTION'
main_object.instance_collection = col
# Objects have to be linked to show up in a scene
for obj in data_to.objects:
# Add objects to asset collection
col.objects.link(obj)
run()
scene.collection.objects.link(main_object)
bbox_min, bbox_max = calc_bbox(context, data_to.objects)
print(bbox_min)
print(bbox_max)
bbox_center = 0.5 * Vector((bbox_max[0] + bbox_min[0], bbox_max[1] + bbox_min[1], 0))
scale_size = 2 * max(abs(bbox_max[0] - bbox_min[0]), abs(bbox_max[2] - bbox_min[2]))
background = [
bpy.data.objects['Camera'],
bpy.data.objects['Stage'],
bpy.data.objects['Left Area'],
bpy.data.objects['Right Area'],
bpy.data.objects['Room'],
bpy.data.objects['Top Area'],
bpy.data.objects['Backlight Area']]
camera = bpy.data.objects['Camera']
select(background)
context.scene.tool_settings.transform_pivot_point = 'CURSOR'
bpy.ops.transform.resize(value=(scale_size, scale_size, scale_size), center_override=(0.6, 0, 0))
bpy.ops.object.select_all(action='DESELECT')
camera.location.z = 0.5 * abs(bbox_max[2] - bbox_min[2])
main_object.empty_display_size = 0.5 * max(bbox_max[0] - bbox_min[0], bbox_max[1] - bbox_min[1],
bbox_max[2] - bbox_min[2])
main_object.location = (0.6, 0, 0)
main_object.rotation_euler = (0, 0, 0)
main_object.empty_display_size = 0.5*max(bbox_max[0] - bbox_min[0], bbox_max[1] - bbox_min[1], bbox_max[2] - bbox_min[2])
col.instance_offset = bbox_center
context.scene.view_settings.gamma = 1
context.scene.view_settings.exposure = 1
context.scene.view_settings.look = 'Very High Contrast'
context.scene.luxcore.halt.enable = True
context.scene.luxcore.halt.use_samples = True
context.scene.luxcore.halt.samples = int(samples)
context.scene.render.image_settings.file_format = 'JPEG'
context.scene.render.filepath = thumbnail
bpy.ops.render.render(write_still = True)
argv = sys.argv
argv = argv[argv.index("--") + 1:]
blendfile = argv[0]
assetname = splitext(basename(argv[0]))[0]
thumbnail = join(dirname(dirname(argv[0])), 'preview', 'full', 'local', assetname + ".jpg")
samples = argv[1]
type = argv[2]
if type == 'model':
render_model_thumbnail(assetname, blendfile, thumbnail, samples)
elif type == 'material':
render_material_thumbnail(assetname, blendfile, thumbnail, samples)
