TestSVBRDF.py 文件源码

def renderRelighting(renderer, albedo, spec, roughness, normal):
    renderer.SetPointLight(0, 0.27, -0.25, 1, 0, 0.6, 0.6, 0.6)
    renderer.SetAlbedoMap(albedo)
    renderer.SetSpecValue(spec)
    renderer.SetRoughnessValue(roughness)

    normal = normal * 2.0 - 1.0
    normal[0] = normal[0] * 2.5
    len = np.linalg.norm(normal, axis = 2)
    normal = normal / np.dstack((len, len, len))
    normal = 0.5*(normal + 1.0)

    renderer.SetNormalMap(normal*2.0 - 1.0)
    img = renderer.Render()

    renderer.SetEnvLightByID(43, 30, -10.0)
    renderer.SetAlbedoMap(albedo)
    renderer.SetSpecValue(spec)
    renderer.SetRoughnessValue(roughness)
    renderer.SetNormalMap(normal*2.0 - 1.0)
    img_1 = renderer.Render()

    return 1.2 * img + 0.8 * img_1