How to set glow in text object, with python?

Question

So, I want to make my text glows. Using python. Until now, I've scripted this, after reading some tutorials:

import bpy
def create():
    bpy.ops.object.text_add(location=(0, 0, 0))
    text_obj = bpy.context.object
    #'glow'
    scene = bpy.context.scene
    scene.world.light_settings.use_indirect_light = True
    scene.world.light_settings.gather_method = 'APPROXIMATE'
    scene.world.light_settings.passes = 2

    mat = makeMaterial("font", (1,1,1), 1.8)
    text_obj.active_material = mat

def makeMaterial(name, color, emit):
    mat = bpy.data.materials.new(name)
    mat.diffuse_color = color
    mat.diffuse_shader = 'LAMBERT' 
    mat.diffuse_intensity = 1.0 
    mat.specular_color = color
    mat.specular_shader = 'COOKTORR'
    mat.specular_intensity = 0
    mat.use_transparency = True
    #mat.raytrace_transparency.fresnel = 2
    #mat.alpha = transp
    mat.emit = emit
    return mat

if __name__ == "__main__":
    create()

Why this isn't working good?

Tks

Answer 1

The way you setup the scene, the glow is only noticeable if you have another object. It will not cause the 'air' around the text to glow.

Below is my test render when I run your script with a plane. I this what you want?

If you want the air around the text to glow, approximate ambient occlusion cannot give you that. You'll need to use the compositor.