It looks like the model is stumbling when it tries to calculate complex light interactions (caustics) with fine, volumetric, repeating textures. I suspect the neural network is either trying to cut corners to save resources by applying a procedural Voronoi (?) pattern, or it’s getting bogged down in these complex calculations and just outputting whatever is left over. These are just my assumptions.
I tried this prompt, and here’s the result.
Prompt v 1
Scene:
Abstract dark void, dramatic backlit environment, floating embers and glass shards, intense energetic atmosphere.
Subject:
A humanoid form made of molten and shattering obsidian, caught in the exact moment of fragmentation. Sharp, glassy shards suspended in mid-air, catching refractive shafts of cold white light. Deep crimson and orange magma-like glow emanates from the cracks, contrasting violently with the black glass. The pose is dynamic, arms outstretched as if releasing or absorbing energy.
Important details:
High-speed fantasy photography, frozen motion aesthetic, refractive glass textures with caustic light patterns, dramatic rim lighting, particle physics detail (shards, embers, vapor), intense chiaroscuro, surreal energy visualization, masterful composition, digital painting meets photorealism style.
Constraints:
No messy or chaotic composition, keep the central form recognizable. Balance the internal glow with the black glass texture. Preserve the sharpness of the fragments and the fluidity of the molten sections. No decorative borders or text.
AR 16:9
Then I asked Qwen to analyze the image and look for solutions on the web. It cheated a bit by describing slightly larger obsidian shards and removing the dust, but the direct ban on repeating patterns seems to have worked. Either way, the quality of the second image is much higher.
Prompt v2
Scene:
Abstract dark void, dramatic backlit environment, floating embers and suspended glass fragments, intense energetic atmosphere.
Subject:
A humanoid form made of smooth, polished black obsidian, captured in the exact moment of fragmentation. The body is breaking apart into large, distinct, sharp geometric shards of glass, NOT small dust. Internal glowing cracks of crimson light emit energy, but the outer surface of the shards remains perfectly smooth and mirror-like.
Important details:
Macro glass photography, frozen motion aesthetic, individual distinct shards, sharp geometric edges, refractive light patterns, dramatic rim lighting, particle physics detail (large fragments only), intense chiaroscuro, surreal energy visualization, masterful composition.
Constraints:
STRICTLY NO cellular texture, NO webbing, NO neural network patterns, NO repeating Voronoi patterns. The obsidian must look like solid, smooth glass breaking into large pieces, not organic cells or mud cracks. Keep the central form recognizable.
AR 16:9
Posting the second picture in the reply since I’m a new user and can only attach one media per post.