luboslenco
89 lines
3.7 KiB
TypeScript
89 lines
3.7 KiB
TypeScript
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function make_sculpt_run(data: material_t, matcon: material_context_t): NodeShaderContextRaw {
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let context_id = "paint";
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let con_paint = node_shader_context_create(data, {
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name: context_id,
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depth_write: false,
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compare_mode: "always", // TODO: align texcoords winding order
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// cull_mode: "counter_clockwise",
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cull_mode: "none",
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vertex_elements: [{name: "pos", data: "float2"}],
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color_attachments: ["RGBA32", "RGBA32", "RGBA32", "R8"]
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});
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con_paint.data.color_writes_red = [true, true, true, true];
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con_paint.data.color_writes_green = [true, true, true, true];
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con_paint.data.color_writes_blue = [true, true, true, true];
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con_paint.data.color_writes_alpha = [true, true, true, true];
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con_paint.allow_vcols = mesh_data_get_vertex_array(context_raw.paint_object.data, "col") != null;
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let vert = node_shader_context_make_vert(con_paint);
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let frag = node_shader_context_make_frag(con_paint);
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frag.ins = vert.outs;
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let faceFill = context_raw.tool == workspace_tool_t.FILL && context_raw.fill_type_handle.position == fill_type_t.FACE;
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let decal = context_raw.tool == workspace_tool_t.DECAL || context_raw.tool == workspace_tool_t.TEXT;
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node_shader_add_out(vert, 'vec2 texCoord');
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node_shader_write(vert, 'const vec2 madd = vec2(0.5, 0.5);');
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node_shader_write(vert, 'texCoord = pos.xy * madd + madd;');
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///if (krom_direct3d11 || krom_direct3d12 || krom_metal || krom_vulkan)
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node_shader_write(vert, 'texCoord.y = 1.0 - texCoord.y;');
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///end
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node_shader_write(vert, 'gl_Position = vec4(pos.xy, 0.0, 1.0);');
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node_shader_add_uniform(frag, 'vec4 inp', '_inputBrush');
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node_shader_add_uniform(frag, 'vec4 inplast', '_inputBrushLast');
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node_shader_add_uniform(frag, 'sampler2D gbufferD');
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node_shader_add_out(frag, 'vec4 fragColor[2]');
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node_shader_add_uniform(frag, 'float brushRadius', '_brushRadius');
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node_shader_add_uniform(frag, 'float brushOpacity', '_brushOpacity');
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node_shader_add_uniform(frag, 'float brushHardness', '_brushHardness');
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if (context_raw.tool == workspace_tool_t.BRUSH ||
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context_raw.tool == workspace_tool_t.ERASER ||
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context_raw.tool == workspace_tool_t.CLONE ||
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context_raw.tool == workspace_tool_t.BLUR ||
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context_raw.tool == workspace_tool_t.SMUDGE ||
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context_raw.tool == workspace_tool_t.PARTICLE ||
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decal) {
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let depth_reject = !context_raw.xray;
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make_brush_run(vert, frag);
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}
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node_shader_write(frag, 'vec3 basecol = vec3(1.0, 1.0, 1.0);');
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node_shader_write(frag, 'float opacity = 1.0;');
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node_shader_write(frag, 'if (opacity == 0.0) discard;');
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node_shader_write(frag, 'float str = clamp((brushRadius - dist) * brushHardness * 400.0, 0.0, 1.0) * opacity;');
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node_shader_add_uniform(frag, 'sampler2D texpaint_undo', '_texpaint_undo');
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node_shader_write(frag, 'vec4 sample_undo = textureLod(texpaint_undo, texCoord, 0.0);');
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node_shader_write(frag, 'if (sample_undo.r == 0 && sample_undo.g == 0 && sample_undo.b == 0) discard;');
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node_shader_add_function(frag, str_octahedron_wrap);
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node_shader_add_uniform(frag, 'sampler2D gbuffer0_undo');
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node_shader_write(frag, 'vec2 g0_undo = textureLod(gbuffer0_undo, inp.xy, 0.0).rg;');
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node_shader_write(frag, 'vec3 wn;');
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node_shader_write(frag, 'wn.z = 1.0 - abs(g0_undo.x) - abs(g0_undo.y);');
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node_shader_write(frag, 'wn.xy = wn.z >= 0.0 ? g0_undo.xy : octahedronWrap(g0_undo.xy);');
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node_shader_write(frag, 'vec3 n = normalize(wn);');
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node_shader_write(frag, 'fragColor[0] = vec4(sample_undo.rgb + n * 0.1 * str, 1.0);');
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node_shader_write(frag, 'fragColor[1] = vec4(str, 0.0, 0.0, 1.0);');
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parser_material_finalize(con_paint);
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con_paint.data.shader_from_source = true;
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con_paint.data.vertex_shader = node_shader_get(vert);
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con_paint.data.fragment_shader = node_shader_get(frag);
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return con_paint;
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}
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