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Quick Explode: replace BI based material handling (using 'fade'/'blend') 

using a simple shader graph mixing Transparent BSDF now

Fixes T59185

Reviewers: brecht

Maniphest Tasks: T59185

Differential Revision: https://developer.blender.org/D4181
This commit is contained in:
Philipp Oeser 2019-01-07 15:42:46 +01:00
parent 4b55945da6
commit 54985ab5f5
Notes: blender-bot 2023-02-14 04:33:25 +01:00 
Referenced by issue #59185, Quick Explode is broken in 2.8
1 changed files with 46 additions and 28 deletions
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74
release/scripts/startup/bl_operators/object_quick_effects.py
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@ -192,17 +192,6 @@ class QuickExplode(Operator):
return {'CANCELLED'}
if self.fade:
tex = bpy.data.textures.new("Explode fade", 'BLEND')
tex.use_color_ramp = True
if self.style == 'BLEND':
tex.color_ramp.elements[0].position = 0.333
tex.color_ramp.elements[1].position = 0.666
tex.color_ramp.elements[0].color[3] = 1.0
tex.color_ramp.elements[1].color[3] = 0.0
if self.style == 'BLEND':
from_obj = mesh_objects[1]
to_obj = mesh_objects[0]
@ -229,30 +218,59 @@ class QuickExplode(Operator):
explode.particle_uv = uv.name
mat = object_ensure_material(obj, "Explode Fade")
mat.blend_method = 'BLEND'
mat.transparent_shadow_method = 'HASHED'
if not mat.use_nodes:
mat.use_nodes = True
mat.use_transparency = True
mat.use_transparent_shadows = True
mat.alpha = 0.0
mat.specular_alpha = 0.0
nodes = mat.node_tree.nodes
for node in nodes:
if (node.type == 'OUTPUT_MATERIAL'):
node_out_mat = node
break
tex_slot = mat.texture_slots.add()
node_surface = node_out_mat.inputs['Surface'].links[0].from_node
tex_slot.texture = tex
tex_slot.texture_coords = 'UV'
tex_slot.uv_layer = uv.name
node_x = node_surface.location[0]
node_y = node_surface.location[1] - 400
offset_x = 200
tex_slot.use_map_alpha = True
node_mix = nodes.new('ShaderNodeMixShader')
node_mix.location = (node_x - offset_x, node_y)
mat.node_tree.links.new(node_surface.outputs["BSDF"], node_mix.inputs[1])
mat.node_tree.links.new(node_mix.outputs["Shader"], node_out_mat.inputs['Surface'])
offset_x += 200
node_trans = nodes.new('ShaderNodeBsdfTransparent')
node_trans.location = (node_x - offset_x, node_y)
mat.node_tree.links.new(node_trans.outputs["BSDF"], node_mix.inputs[2])
offset_x += 200
node_ramp = nodes.new('ShaderNodeValToRGB')
node_ramp.location = (node_x - offset_x, node_y)
offset_x += 200
mat.node_tree.links.new(node_ramp.outputs["Alpha"], node_mix.inputs["Fac"])
color_ramp = node_ramp.color_ramp
color_ramp.elements[0].color[3] = 0.0
color_ramp.elements[1].color[3] = 1.0
if self.style == 'BLEND':
color_ramp.elements[0].position = 0.333
color_ramp.elements[1].position = 0.666
if obj == to_obj:
tex_slot.alpha_factor = -1.0
elem = tex.color_ramp.elements[1]
else:
elem = tex.color_ramp.elements[0]
# Keep already defined alpha!
elem.color[:3] = mat.diffuse_color
else:
tex_slot.use_map_color_diffuse = False
# reverse ramp alpha
color_ramp.elements[0].color[3] = 1.0
color_ramp.elements[1].color[3] = 0.0
node_sep = nodes.new('ShaderNodeSeparateXYZ')
node_sep.location = (node_x - offset_x, node_y)
offset_x += 200
mat.node_tree.links.new(node_sep.outputs["X"], node_ramp.inputs["Fac"])
node_uv = nodes.new('ShaderNodeUVMap')
node_uv.location = (node_x - offset_x, node_y)
node_uv.uv_map = uv.name
mat.node_tree.links.new(node_uv.outputs["UV"], node_sep.inputs["Vector"])
if self.style == 'BLEND':
settings.physics_type = 'KEYED'