给学生讲画面里「暖点」的作用，顺手跑了张图当例子。一开始写得很简单，出来的木屋像样板房，冷冰冰的。后来把窗户里的火光单独强调了一遍，又补了落叶的动势和空气里的浮尘，整张图才有人味。
扩写后的这版比较稳，出十张能有六七张能用：
A cozy wooden cabin nestled deep in autumn woods, moss on the stone foundation, weathered timber walls,
golden, amber and deep red leaves drifting down through the frame, a few caught mid-air,
warm firelight glowing from the small window and spilling onto the porch and fallen leaves,
thin woodsmoke rising from the chimney, faint mist between distant tree trunks,
late afternoon low sun, soft backlight through the canopy, visible light shafts and floating dust motes,
photorealistic, shallow depth of field, 35mm lens, natural color grading, warm highlights against cool blue shadows,
high detail on bark, leaf veins and window glass
关键是「火光要溢到门廊和落叶上」这句，只写 warm fireplace glow 的话模型经常只把窗户点亮，光不落地，画面就散了。
