diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp index 0ebb7531e32..54bf8b48252 100644 --- a/src/amd/compiler/aco_instruction_selection.cpp +++ b/src/amd/compiler/aco_instruction_selection.cpp @@ -10203,6 +10203,11 @@ static void create_vs_exports(isel_context *ctx) ctx->outputs.temps[VARYING_SLOT_LAYER * 4u] = as_vgpr(ctx, get_arg(ctx, ctx->args->ac.view_index)); } + /* Hardware requires position data to always be exported, even if the + * application did not write gl_Position. + */ + ctx->outputs.mask[VARYING_SLOT_POS] = 0xf; + /* the order these position exports are created is important */ int next_pos = 0; bool exported_pos = export_vs_varying(ctx, VARYING_SLOT_POS, true, &next_pos);