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The addon gets updated for Eevee/Cycles - part 4 - revision: A point source 

for both, Eevee and Cycles, is sufficient, no need to have an additional
ball with emission for Cycles.
This commit is contained in:
Clemens Barth 2022-01-20 15:01:18 +01:00
parent 0574f418a0
commit 6e910cf217
2 changed files with 4 additions and 78 deletions
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41
io_mesh_atomic/pdb_import.py
View File

@ -629,53 +629,16 @@ def camera_light_source(use_camera,
lamp_xyz_vec = object_center_vec + object_lamp_vec
length = lamp_xyz_vec.length
# Eevee
# =====
# As a lamp we use a point source.
lamp_data = bpy.data.lights.new(name="A_lamp_eevee", type="POINT")
lamp_data = bpy.data.lights.new(name="A_lamp", type="POINT")
# We now determine the emission strength of the lamp. Note that the
# intensity depends on 1/r^2. For this we use a value of 100000.0 at a
# distance of 58. This value was determined manually inside Blender.
lamp_data.energy = 500000.0 * ( (length * length) / (58.0 * 58.0) )
lamp = bpy.data.objects.new("A_lamp_eevee", lamp_data)
lamp = bpy.data.objects.new("A_lamp", lamp_data)
lamp.location = lamp_xyz_vec
bpy.context.collection.objects.link(lamp)
# Cycles
# ======
# As a lamp we use a ball.
bpy.ops.mesh.primitive_uv_sphere_add(
segments=64,
ring_count=64,
align='WORLD',
enter_editmode=False,
# We move the lamp below the point source from above.
location=lamp_xyz_vec + Vector((0.0, 0.0, 1.5)),
rotation=(0, 0, 0))
lamp = bpy.context.view_layer.objects.active
# We put an 'A_' just that the lamp appears first in the outliner
# tree
lamp.name = "A_lamp_cycles"
# See above.
strength = 5000.0 * ( (length * length) / (58.0 * 58.0) )
# Now, we create the material
lamp_material = bpy.data.materials.new(lamp.name)
lamp_material.use_nodes = True
# Create the emission Node.
material_output = lamp_material.node_tree.nodes.get('Material Output')
emission = lamp_material.node_tree.nodes.new('ShaderNodeEmission')
# Emission and strength values
emission.inputs['Strength'].default_value = strength
emission.inputs['Color'].default_value = (1.0, 1.0, 1.0, 1.0)
# The new material into the tree and link the material of the object
# with the new material.
lamp_material.node_tree.links.new(material_output.inputs[0], emission.outputs[0])
lamp.active_material = lamp_material
# Some settings for the World: a bit ambient occlusion
bpy.context.scene.world.light_settings.use_ambient_occlusion = True
bpy.context.scene.world.light_settings.ao_factor = 0.1

41
io_mesh_atomic/xyz_import.py
View File

@ -432,53 +432,16 @@ def camera_light_source(use_camera,
lamp_xyz_vec = object_center_vec + object_lamp_vec
length = lamp_xyz_vec.length
# Eevee
# =====
# As a lamp we use a point source.
lamp_data = bpy.data.lights.new(name="A_lamp_eevee", type="POINT")
lamp_data = bpy.data.lights.new(name="A_lamp", type="POINT")
# We now determine the emission strength of the lamp. Note that the
# intensity depends on 1/r^2. For this we use a value of 100000.0 at a
# distance of 58. This value was determined manually inside Blender.
lamp_data.energy = 500000.0 * ( (length * length) / (58.0 * 58.0) )
lamp = bpy.data.objects.new("A_lamp_eevee", lamp_data)
lamp = bpy.data.objects.new("A_lamp", lamp_data)
lamp.location = lamp_xyz_vec
bpy.context.collection.objects.link(lamp)
# Cycles
# ======
# As a lamp we use a ball.
bpy.ops.mesh.primitive_uv_sphere_add(
segments=64,
ring_count=64,
align='WORLD',
enter_editmode=False,
# We move the lamp below the point source from above.
location=lamp_xyz_vec + Vector((0.0, 0.0, 1.5)),
rotation=(0, 0, 0))
lamp = bpy.context.view_layer.objects.active
# We put an 'A_' just that the lamp appears first in the outliner
# tree
lamp.name = "A_lamp"
# See above.
strength = 5000.0 * ( (length * length) / (58.0 * 58.0) )
# Now, we create the material
lamp_material = bpy.data.materials.new(lamp.name)
lamp_material.use_nodes = True
# Create the emission Node.
material_output = lamp_material.node_tree.nodes.get('Material Output')
emission = lamp_material.node_tree.nodes.new('ShaderNodeEmission')
# Emission and strength values
emission.inputs['Strength'].default_value = strength
emission.inputs['Color'].default_value = (1.0, 1.0, 1.0, 1.0)
# The new material into the tree and link the material of the object
# with the new material.
lamp_material.node_tree.links.new(material_output.inputs[0], emission.outputs[0])
lamp.active_material = lamp_material
# Some settings for the World: a bit ambient occlusion
bpy.context.scene.world.light_settings.use_ambient_occlusion = True
bpy.context.scene.world.light_settings.ao_factor = 0.1