luboslenco
178 lines
7.2 KiB
TypeScript
178 lines
7.2 KiB
TypeScript
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let make_mesh_preview_opacity_discard_decal: f32 = 0.05;
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function make_mesh_preview_run(data: material_t, matcon: material_context_t): node_shader_context_t {
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let context_id: string = "mesh";
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let props: shader_context_t = {
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name: context_id,
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depth_write: true,
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compare_mode: "less",
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cull_mode: "clockwise",
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vertex_elements: [
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{
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name: "pos",
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data: "short4norm"
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},
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{
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name: "nor",
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data: "short2norm"
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},
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{
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name: "tex",
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data: "short2norm"
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}
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],
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color_attachments: [
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"RGBA64",
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"RGBA64",
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"RGBA64"
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],
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depth_attachment: "DEPTH32"
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};
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let con_mesh: node_shader_context_t = node_shader_context_create(data, props);
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let vert: node_shader_t = node_shader_context_make_vert(con_mesh);
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let frag: node_shader_t = node_shader_context_make_frag(con_mesh);
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frag.ins = vert.outs;
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let pos: string = "pos";
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///if arm_skin
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let skin: bool = mesh_data_get_vertex_array(context_raw.paint_object.data, "bone") != null;
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if (skin) {
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pos = "spos";
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node_shader_context_add_elem(con_mesh, "bone", "short4norm");
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node_shader_context_add_elem(con_mesh, "weight", "short4norm");
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node_shader_add_function(vert, str_get_skinning_dual_quat);
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node_shader_add_uniform(vert, "vec4 skin_bones[128 * 2]", "_skin_bones");
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node_shader_add_uniform(vert, "float pos_unpack", "_pos_unpack");
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node_shader_write_attrib(vert, "vec4 skin_a;");
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node_shader_write_attrib(vert, "vec4 skin_b;");
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node_shader_write_attrib(vert, "get_skinning_dual_quat(ivec4(bone * 32767), weight, skin_a, skin_b);");
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node_shader_write_attrib(vert, "vec3 spos = pos.xyz;");
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node_shader_write_attrib(vert, "spos.xyz *= pos_unpack;");
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node_shader_write_attrib(vert, "spos.xyz += 2.0 * cross(skin_a.xyz, cross(skin_a.xyz, spos.xyz) + skin_a.w * spos.xyz);");
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node_shader_write_attrib(vert, "spos.xyz += 2.0 * (skin_a.w * skin_b.xyz - skin_b.w * skin_a.xyz + cross(skin_a.xyz, skin_b.xyz));");
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node_shader_write_attrib(vert, "spos.xyz /= pos_unpack;");
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}
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///end
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node_shader_add_uniform(vert, "mat4 WVP", "_world_view_proj_matrix");
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node_shader_write_attrib(vert, "gl_Position = mul(vec4(" + pos + ".xyz, 1.0), WVP);");
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let sc: f32 = context_raw.brush_scale * context_raw.brush_nodes_scale;
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let brush_scale: string = sc + "";
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node_shader_add_out(vert, "vec2 tex_coord");
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node_shader_write_attrib(vert, "tex_coord = tex * float(" + brush_scale + ");");
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let decal: bool = context_raw.decal_preview;
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parser_material_sample_keep_aspect = decal;
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parser_material_sample_uv_scale = brush_scale;
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parser_material_parse_height = make_material_height_used;
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parser_material_parse_height_as_channel = true;
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// let sout = parser_material_parse(ui_nodes_getCanvasMaterial(), con_mesh, vert, frag, matcon);
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parser_material_parse_height = false;
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parser_material_parse_height_as_channel = false;
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parser_material_sample_keep_aspect = false;
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let base: string = "vec3(1.0, 1.0, 1.0)";//sout.out_basecol;
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let rough: string = "0.0";//sout.out_roughness;
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let met: string = "0.0";//sout.out_metallic;
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let occ: string = "0.0";//sout.out_occlusion;
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let opac: string = "0.0";//sout.out_opacity;
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let height: string = "0.0";//sout.out_height;
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let nortan: string = "vec3(1.0, 1.0, 1.0)";//parser_material_out_normaltan;
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node_shader_write(frag, "vec3 basecol = pow(" + base + ", vec3(2.2, 2.2, 2.2));");
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node_shader_write(frag, "float roughness = " + rough + ";");
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node_shader_write(frag, "float metallic = " + met + ";");
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node_shader_write(frag, "float occlusion = " + occ + ";");
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node_shader_write(frag, "float opacity = " + opac + ";");
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node_shader_write(frag, "vec3 nortan = " + nortan + ";");
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node_shader_write(frag, "float height = " + height + ";");
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// parser_material_parse_height_as_channel = false;
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// node_shader_write(vert, "float vheight = " + height + ";");
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// node_shader_add_out(vert, "float height");
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// node_shader_write(vert, "height = vheight;");
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// let displace_strength = 0.1;
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// if (heightUsed && displace_strength > 0.0) {
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// node_shader_write(vert, "vec3 pos2 = " + pos + ".xyz + vec3(nor.xy, pos.w) * vec3(" + height + ", " + height + ", " + height + ") * vec3(" + displace_strength + ", " + displace_strength + ", " + displace_strength + ");");
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// node_shader_write(vert, "gl_Position = mul(vec4(pos2.xyz, 1.0), WVP);");
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// }
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if (decal) {
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if (context_raw.tool == workspace_tool_t.TEXT) {
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node_shader_add_uniform(frag, "sampler2D textexttool", "_textexttool");
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node_shader_write(frag, "opacity *= textureLod(textexttool, tex_coord / float(" + brush_scale + "), 0.0).r;");
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}
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}
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if (decal) {
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let opac: f32 = make_mesh_preview_opacity_discard_decal;
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node_shader_write(frag, "if (opacity < " + opac + ") discard;");
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}
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node_shader_add_out(frag, "vec4 frag_color[3]");
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frag.n = true;
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node_shader_add_function(frag, str_pack_float_int16);
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node_shader_add_function(frag, str_cotangent_frame);
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node_shader_add_function(frag, str_octahedron_wrap);
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if (make_material_height_used) {
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node_shader_write(frag, "if (height > 0.0) {");
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node_shader_write(frag, "float height_dx = dFdx(height * 2.0);");
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node_shader_write(frag, "float height_dy = dFdy(height * 2.0);");
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// node_shader_write(frag, "float height_dx = height0 - height1;");
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// node_shader_write(frag, "float height_dy = height2 - height3;");
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// Whiteout blend
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node_shader_write(frag, "vec3 n1 = nortan * vec3(2.0, 2.0, 2.0) - vec3(1.0, 1.0, 1.0);");
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node_shader_write(frag, "vec3 n2 = normalize(vec3(height_dx * 16.0, height_dy * 16.0, 1.0));");
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node_shader_write(frag, "nortan = normalize(vec3(n1.xy + n2.xy, n1.z * n2.z)) * vec3(0.5, 0.5, 0.5) + vec3(0.5, 0.5, 0.5);");
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node_shader_write(frag, "}");
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}
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// Apply normal channel
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if (decal) {
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// TODO
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}
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else {
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frag.vvec = true;
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///if (iron_direct3d11 || iron_direct3d12 || iron_metal || iron_vulkan)
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node_shader_write(frag, "mat3 TBN = cotangent_frame(n, vvec, tex_coord);");
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///else
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node_shader_write(frag, "mat3 TBN = cotangent_frame(n, -vvec, tex_coord);");
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///end
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node_shader_write(frag, "n = nortan * 2.0 - 1.0;");
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node_shader_write(frag, "n.y = -n.y;");
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node_shader_write(frag, "n = normalize(mul(n, TBN));");
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}
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node_shader_write(frag, "n /= (abs(n.x) + abs(n.y) + abs(n.z));");
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node_shader_write(frag, "n.xy = n.z >= 0.0 ? n.xy : octahedron_wrap(n.xy);");
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// uint matid = 0;
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if (decal) {
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node_shader_write(frag, "frag_color[0] = vec4(n.x, n.y, roughness, pack_f32_i16(metallic, uint(0)));"); // metallic/matid
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node_shader_write(frag, "frag_color[1] = vec4(basecol, occlusion);");
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}
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else {
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node_shader_write(frag, "frag_color[0] = vec4(n.x, n.y, mix(1.0, roughness, opacity), pack_f32_i16(mix(1.0, metallic, opacity), uint(0)));"); // metallic/matid
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node_shader_write(frag, "frag_color[1] = vec4(mix(vec3(0.0, 0.0, 0.0), basecol, opacity), occlusion);");
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}
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node_shader_write(frag, "frag_color[2] = vec4(0.0, 0.0, 0.0, 0.0);"); // veloc
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parser_material_finalize(con_mesh);
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///if arm_skin
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if (skin) {
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node_shader_write(vert, "wnormal = normalize(mul(vec3(nor.xy, pos.w) + 2.0 * cross(skin_a.xyz, cross(skin_a.xyz, vec3(nor.xy, pos.w)) + skin_a.w * vec3(nor.xy, pos.w)), N));");
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}
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///end
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con_mesh.data.shader_from_source = true;
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con_mesh.data.vertex_shader = node_shader_get(vert);
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con_mesh.data.fragment_shader = node_shader_get(frag);
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return con_mesh;
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}
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