armory3d.armortools/paint/sources/make_clone.ts

function make_clone_run(kong: node_shader_t) {
	node_shader_add_constant(kong, "clone_delta: float2", "_clone_delta");
	// node_shader_write_frag(kong, "var tex_coord_inp: float2 = gbuffer2[uint2((sp.xy + constants.clone_delta) * constants.gbuffer_size)].ba;");
	node_shader_write_frag(
	    kong,
	    "var tex_coord_coord: uint2 = uint2(uint((sp.x + constants.clone_delta.x) * constants.gbuffer_size.x), uint((sp.y + constants.clone_delta.y) * constants.gbuffer_size.y));");
	node_shader_write_frag(kong, "var tex_coord_inp4: float4 = gbuffer2[tex_coord_coord];");
	node_shader_write_frag(kong, "var tex_coord_inp: float2 = tex_coord_inp4.ba;");

	node_shader_write_frag(kong, "var texpaint_pack_sample: float3 = sample_lod(texpaint_pack_undo, sampler_linear, tex_coord_inp, 0.0).rgb;");
	let base: string   = "sample_lod(texpaint_undo, sampler_linear, tex_coord_inp, 0.0).rgb";
	let rough: string  = "texpaint_pack_sample.g";
	let met: string    = "texpaint_pack_sample.b";
	let occ: string    = "texpaint_pack_sample.r";
	let nortan: string = "sample_lod(texpaint_nor_undo, sampler_linear, tex_coord_inp, 0.0).rgb";
	let height: string = "0.0";
	let opac: string   = "1.0";
	node_shader_write_frag(kong, "var basecol: float3 = " + base + ";");
	node_shader_write_frag(kong, "var roughness: float = " + rough + ";");
	node_shader_write_frag(kong, "var metallic: float = " + met + ";");
	node_shader_write_frag(kong, "var occlusion: float = " + occ + ";");
	node_shader_write_frag(kong, "var nortan: float3 = " + nortan + ";");
	node_shader_write_frag(kong, "var height: float = " + height + ";");
	node_shader_write_frag(kong, "var mat_opacity: float = " + opac + ";");
	node_shader_write_frag(kong, "var opacity: float = mat_opacity * constants.brush_opacity;");
	if (context_raw.material.paint_emis) {
		node_shader_write_frag(kong, "var emis: float = 0.0;");
	}
	if (context_raw.material.paint_subs) {
		node_shader_write_frag(kong, "var subs: float = 0.0;");
	}
}