DarthAffe/stable-diffusion.cpp
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refactor: align PixArt weights with upstream layout (#2061)

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leejet authored and GitHub committed 2026-09-26 02:03:05 +08:00
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commit 2f886889e6
8 files changed
+273 -96
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src/pipeline/model_builders.cpp
+1 -1
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@@ -579,7 +579,7 @@ namespace sd::model_builders {
weight_manager);
if (sd_version_is_pixart(version)) {
// Alpha-512 and Sigma share tensor layouts; Alpha-512 needs an explicit scale override.
if (tensor_storage_map.count("model.diffusion_model.adaln_single.emb.resolution_embedder.linear_1.weight") != 0) {
if (tensor_storage_map.count("model.diffusion_model.csize_embedder.mlp.0.weight") != 0) {
model->scale_factor = 0.18215f;
}
for (const auto& [key, value] : parse_key_value_args(sd_ctx_params->model_args, "model arg")) {