Igor Elovikov
50 lines
1.0 KiB
Plaintext
50 lines
1.0 KiB
Plaintext
:: import "point_cloud.sex" as pc
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pc_index = get_int("pc_index")
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min_distance = get_float("min_distance")
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n = toint(get_float("$number"))
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{{ pc.init_pcloud("pcloud") }}
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last_iteration = (n == toint(pcloud_meta.x))
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self_check = (n == pc_index)
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sample_idx = n
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{{ pc.get_pcloud_point_noattr("pcloud", "sample_idx", "sample_cloud") }}
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{{ pc.get_pcloud_point_noattr("pcloud", "pc_index", "sample_origin") }}
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pos_origin = sample_origin.xy
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:: if tiled
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pos_origin = pos_origin % float2(1.0, 1.0)
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:: endif
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skip_iteration = self_check or last_iteration
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:: set checks = 9 if tiled else 1
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:: for i in range(checks)
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pos_comp = sample_cloud.xy + vector2({{ pc.tile_offset[i] }})
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dist_vec = pos_origin - pos_comp
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dist = length_vec2(dist_vec)
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mdist = dist if dist < min_distance and not skip_iteration else min_distance
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min_distance = mdist
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:: endfor
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color_out = merge_float4(pos_origin.x, pos_origin.y, min_distance , 1.0)
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pos_out = sample_uv
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size_out = pcloud_frag_size
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_OUT_ = last_iteration
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export(color_out)
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export(pos_out)
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export(size_out)
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export(min_distance)
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