最简单的blender2.8 addon

sbstance designer这个软件还是主要给游戏用的，在离线渲染方面还是有各种问题，一个是sbsar这个文件和各软件的结合不好，另个是纯输出贴图用太好显存，所以想看看能不能在blender中巴几个简单的节点实现，这样可以从sd中间取素材，blender中做调整。

最简单的例子

init.py

bl_info = {
    "name" : "ShaderNodeExtra",
    "author" : "yzh",
    "description" : "Simple test addon",
    "blender" : (2, 80, 0),
    "location" : "",
    "warning" : "",
    "category" : "Generic"
}

import bpy

from . test_op import Test_OT_Operator
from . test_panel import Test_PT_Panel

classes = (Test_OT_Operator, Test_PT_Panel)

register,unregister = bpy.utils.register_classes_factory(classes)

test_op.py

import bpy

class Test_OT_Operator(bpy.types.Operator):
    bl_idname = "view3d.cursor_center"
    bl_label = "Simple operator"
    bl_description = "Center 3d cursor"

    def execute(self,context):
        bpy.ops.view3d.snap_cursor_to_center()
        return {'FINISHED'}

test_panel.py

import bpy

class Test_PT_Panel(bpy.types.Panel):
    bl_idname = "Test_PT_Panel"
    bl_label = "Test Panel"
    bl_category = "Test Addon"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"

    def draw(self, context):
        layout = self.layout

        row = layout.row()
        row.operator('view3d.cursor_center', text='Center 3D cursor')

后面看看如何添加node
import bpy
bpy.data.node_groups["Shader Nodetree"].nodes["Custom Float"].some_value = 0.81
bpy.data.node_groups["Shader Nodetree"].nodes["Value"].outputs[0].default_value = 0.1