混元3D: 免费开源 文本转3D AI
混元3D可在数秒内从文本或图像生成高保真、PBR就绪的3D资产。腾讯开源AI模型,永久免费,无需订阅。



由HuggingFace Spaces提供支持 - 混元3D实时演示
混元3D生成作品
模型原始输出,无后期处理。运行于RTX 3060 (12GB) - 平均耗时: 30秒

Ganesha elephant deity bust, ornate crown with gemstones, golden Sanskrit collar

Japanese koi fish, cherry blossom pattern, gold flakes on scales, rope tied tail

Bronze tiger sculpture, ancient Chinese spiral patterns, jade inlay details

Celadon ceramic tiger, crackle glaze finish, bamboo tail with bell

Gold luxury truck model, diamond encrusted cab, jade cargo container

Steampunk robot knight, weathered teal metal, shield and gears

Terracotta rooster sculpture, muted pastel tones, folk art style

Mechanical horse head, blue white porcelain, golden clockwork gears

Chibi ninja turtle figure, red bandana, dual sai weapons

Oni demon mask, teal bronze patina, curved horns, ornate swirls

Sci-fi tracked vehicle, red armored body, exposed mechanical parts

Patriot mech suit, blue red armor plating, star emblem chest

Chibi spirit creature, blue white porcelain pattern, flame staff

Ceramic cow figurine, cartoon eyes, typing on keyboard

Ceramic pony figurine, sad expression, daisies and milk bottle

Ancient bronze incense burner, taotie beast face, tripod legs

Fantasy mushroom cottage, coral decorations, glowing warm interior

Organic sea creature house, dotted texture, round windows, tentacle path

Mechanical turtle robot, blue armor plates, gold joints, long neck

Rainbow plush bunny doll, gradient fur, big sparkle eyes

Gothic lantern palanquin, thorny vines, cyan glowing windows, dark fantasy

Blue white porcelain boat, wave patterns, constellation sail, serpent base

Skeleton bride doll, lace veil with pearls, white roses bouquet, gothic style

Chibi Indian classical dancer, teal peacock sari, silver bells, bharatanatyam pose

Ornate jewelry box, enamel rose inside, pearl border, cloisonne style

Stone fortress tank, black crystal turret, lava cracked wheels, fantasy siege

Red peony flower, gold kintsugi cracks, lacquer finish, turquoise center

Brass candle holder, stained glass grape clusters, art nouveau vine

Gothic hearse wagon, frosted windows, ravens, bone wings, wax seal

Dragon demon mask, bronze patina, scale pattern, curved horns

Tibetan monk figure, bone horn instrument, silver bowl, weathered robe

Chibi fortune teller, purple starry turban, golden astrolabe, silver snake

Antique silver bell, laurel leaf finial, Greek key pattern border

Bone totem sculpture, horns with flower, arrow through gem, tribal style

Jade Buddha statue, meditation pose, green yellow gradient, translucent

Chibi dragon warrior boy, green plush dragon hood, scale armor

Chibi celestial mage boy, navy starry hat, silver trim robe

Chibi elf sprite, teal hair topknot, golden peacock ornaments, pointed ears

Chibi dragon prince, green plush dragon hood, red plume, scale armor

Chibi businessman figure, blonde hair, black suit, red tie, stern expression

Chinese opera actress bust, blue pink phoenix headdress, pearl tassels, medallion relief
什么是混元3D?
混元3D是腾讯开创性的生成式AI系统,能够从单张图像或文本提示生成高保真3D资产。与之前产生模糊、低分辨率网格的3D AI不同,混元采用两阶段扩散变换器(DiT)架构,将几何生成与纹理合成分离。
第一阶段:几何生成(DiT)。
在大规模3D资产数据集上训练的扩散变换器在潜在空间中生成「裸网格」。这确保了拓扑结构的连贯性和结构细节的保留。
第二阶段:多视角绘制。
一旦网格确定,第二个扩散模型会同时从多个角度投射纹理。它使用「纹理烘焙」过程为反照率、法线、粗糙度和金属度通道创建无缝的UV贴图。
这种方法通过严格地在已建立的几何体上条件化纹理来解决'Janus问题'(多面物体)。
为生产而设计
混元3D不仅仅是一个玩具。它是一个基础模型,旨在适应包括Blender、Unity和虚幻引擎在内的专业管道。
混元3D vs 替代方案
对比 TripoSR
TripoSR非常快(通常不到5秒),但牺牲了质量。它使用前馈变换器将光照烘焙到纹理中,使资产难以在动态游戏环境中使用。混元提供能正确响应光照的PBR贴图。
对比 Rodin
Rodin提供出色的拓扑,通常创建适合动画的干净四边面。然而,它是一个需要订阅和云上传的封闭SaaS平台。混元3D v2.1提供有竞争力的质量,可在您自己的硬件上本地运行(最低6GB显存),确保数据隐私和零持续成本。
几何 vs. 纹理
混元3D使用独特的两阶段管道。第一阶段(DiT)构建裸网格。第二阶段(绘制)应用一致的PBR纹理。


输出对比
相同提示词:'青瓷老虎,冰裂纹釉面'

适用于各种工作流程




加入革命
"PBR贴图实际上是可用的。我用混元输出替换了40%的背景道具。"
Alex Chen
独立游戏开发者"终于有一个开放模型不只是输出模糊的东西。拓扑出人意料地干净。"
Sarah Jenkins
3D艺术家"我们将DiT管道集成到内部工具集中。它将原型制作时间缩短了70%。"
Marcus V.
技术负责人常见问题
可以,但有一些注意事项。虽然PyTorch支持Apple Silicon(Metal),但像nvdiffrast这样的自定义光栅化库是针对CUDA优化的。您可能需要使用CPU回退或等待社区编译的wheels以实现完整的M1/M2/M3加速。





