egutierrez
e828af3ac1
- DagKind::Output (new enum): terminal sink; compiler wires fragColor to its source_ids[0] - dag_catalog: "output" node (1 input, red) - dag_compile: skips Output in node_<i> emission; final fragColor resolves from Output's connection - dag_node_editor: no more Add button; drops "DAG_NODE_TYPE" payloads at mouse canvas position; Output cannot be deleted; Output has no output pin - dag_palette (new fn): Functions window with grouped, draggable node cards - main.cpp: "Functions" window added; ensure_dag_default seeds plasma + connected Output
260 lines
11 KiB
C++
260 lines
11 KiB
C++
#include "gfx/dag_catalog.h"
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#include <string>
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namespace fn::gfx {
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static const std::vector<DagNodeDef>& build_catalog() {
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static std::vector<DagNodeDef> catalog = []() {
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std::vector<DagNodeDef> v;
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// ── Gen: solid ────────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "solid";
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n.label = "solid";
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n.desc = "color constante";
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n.kind = DagKind::Gen;
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n.num_inputs = 0;
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n.param_names = {"r", "g", "b", ""};
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n.param_defaults = {0.35f, 0.25f, 0.55f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Color, "color", {0, 1, 2}, 0.0f, 1.0f, 0.0f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" return vec4(p.x, p.y, p.z, 1.0);";
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};
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v.push_back(std::move(n));
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}
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// ── Gen: gradient ─────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "gradient";
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n.label = "gradient";
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n.desc = "gradiente direccional";
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n.kind = DagKind::Gen;
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n.num_inputs = 0;
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n.param_names = {"angle", "hue", "", ""};
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n.param_defaults = {0.8f, 0.5f, 0.0f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Slider, "angulo", {0, -1, -1}, 0.0f, 6.2832f, 0.01f },
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{ DagControl::Kind::Slider, "tono", {1, -1, -1}, 0.0f, 1.0f, 0.01f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" vec2 dir = vec2(cos(p.x), sin(p.x));\n"
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" float t = dot(uv - 0.5, dir) + 0.5;\n"
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" vec3 col = 0.5 + 0.5 * cos(6.28318 * (p.y + vec3(0.0, 0.33, 0.67) + t));\n"
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" return vec4(col, 1.0);";
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};
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v.push_back(std::move(n));
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}
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// ── Gen: plasma ───────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "plasma";
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n.label = "plasma";
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n.desc = "onda trigonometrica";
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n.kind = DagKind::Gen;
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n.num_inputs = 0;
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n.param_names = {"speed", "scale", "", ""};
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n.param_defaults = {1.0f, 2.0f, 0.0f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Slider, "velocidad", {0, -1, -1}, 0.0f, 3.0f, 0.01f },
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{ DagControl::Kind::Slider, "escala", {1, -1, -1}, 0.5f, 10.0f, 0.1f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" vec3 col = 0.5 + 0.5 * cos(u_time * p.x + uv.xyx * p.y + vec3(0.0, 2.0, 4.0));\n"
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" return vec4(col, 1.0);";
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};
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v.push_back(std::move(n));
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}
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// ── Op: circle ────────────────────────────────────────────────
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// Reclassified as Op (num_inputs=1): composites circle over input 'a'
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{
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DagNodeDef n;
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n.name = "circle";
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n.label = "circle";
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n.desc = "sdf de circulo (composita sobre input)";
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n.kind = DagKind::Op;
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n.num_inputs = 1;
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n.param_names = {"cx", "cy", "radius", "soft"};
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n.param_defaults = {0.0f, 0.0f, 0.35f, 0.01f};
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n.controls = {
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{ DagControl::Kind::XY, "centro", {0, 1, -1}, -0.8f, 0.8f, 0.01f },
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{ DagControl::Kind::Slider, "radio", {2, -1, -1}, 0.0f, 1.0f, 0.01f },
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{ DagControl::Kind::Slider, "suavidad", {3, -1, -1}, 0.001f, 0.1f, 0.001f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" float aspect = u_resolution.x / u_resolution.y;\n"
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" vec2 pos = vec2((uv.x - 0.5) * aspect - p.x, uv.y - 0.5 - p.y);\n"
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" float d = length(pos) - p.z;\n"
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" float fill = smoothstep(p.w, -p.w, d);\n"
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" return mix(a, vec4(1.0), fill);";
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};
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v.push_back(std::move(n));
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}
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// ── Op: invert ────────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "invert";
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n.label = "invert";
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n.desc = "1 - rgb";
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n.kind = DagKind::Op;
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n.num_inputs = 1;
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n.param_names = {"", "", "", ""};
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n.param_defaults = {0.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {};
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n.body_glsl = [](int /*idx*/) -> std::string {
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return " return vec4(1.0 - a.rgb, a.a);";
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};
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v.push_back(std::move(n));
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}
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// ── Op: gamma ─────────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "gamma";
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n.label = "gamma";
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n.desc = "pow(rgb, gamma)";
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n.kind = DagKind::Op;
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n.num_inputs = 1;
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n.param_names = {"gamma", "", "", ""};
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n.param_defaults = {1.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Slider, "gamma", {0, -1, -1}, 0.1f, 4.0f, 0.01f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" return vec4(pow(a.rgb, vec3(1.0 / max(p.x, 0.001))), a.a);";
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};
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v.push_back(std::move(n));
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}
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// ── Op: hueShift ──────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "hueShift";
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n.label = "hue shift";
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n.desc = "rotar matiz";
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n.kind = DagKind::Op;
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n.num_inputs = 1;
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n.param_names = {"h", "", "", ""};
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n.param_defaults = {0.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Slider, "h", {0, -1, -1}, 0.0f, 1.0f, 0.01f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" float ang = 6.28318 * p.x;\n"
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" float ca = cos(ang), sa = sin(ang);\n"
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" mat3 hueMat = mat3(\n"
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" vec3(0.299 + 0.701 * ca + 0.168 * sa, 0.587 - 0.587 * ca + 0.330 * sa, 0.114 - 0.114 * ca - 0.497 * sa),\n"
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" vec3(0.299 - 0.299 * ca - 0.328 * sa, 0.587 + 0.413 * ca + 0.035 * sa, 0.114 - 0.114 * ca + 0.292 * sa),\n"
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" vec3(0.299 - 0.300 * ca + 1.250 * sa, 0.587 - 0.588 * ca - 1.050 * sa, 0.114 + 0.886 * ca - 0.203 * sa)\n"
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" );\n"
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" return vec4(clamp(hueMat * a.rgb, 0.0, 1.0), a.a);";
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};
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v.push_back(std::move(n));
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}
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// ── Blend: mix ────────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "blend_mix";
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n.label = "mix";
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n.desc = "interpolacion mix(a, b, t)";
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n.kind = DagKind::Blend;
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n.num_inputs = 2;
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n.param_names = {"t", "", "", ""};
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n.param_defaults = {0.5f, 0.0f, 0.0f, 0.0f};
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n.controls = {
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{ DagControl::Kind::Slider, "t", {0, -1, -1}, 0.0f, 1.0f, 0.01f },
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};
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n.body_glsl = [](int idx) -> std::string {
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std::string i = std::to_string(idx);
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return " vec4 p = u_params[" + i + "];\n"
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" return mix(a, b, p.x);";
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};
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v.push_back(std::move(n));
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}
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// ── Blend: multiply ───────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "blend_multiply";
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n.label = "multiply";
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n.desc = "a * b";
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n.kind = DagKind::Blend;
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n.num_inputs = 2;
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n.param_names = {"", "", "", ""};
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n.param_defaults = {0.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {};
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n.body_glsl = [](int /*idx*/) -> std::string {
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return " return vec4(a.rgb * b.rgb, a.a);";
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};
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v.push_back(std::move(n));
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}
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// ── Blend: screen ─────────────────────────────────────────────
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{
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DagNodeDef n;
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n.name = "blend_screen";
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n.label = "screen";
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n.desc = "1 - (1-a)(1-b)";
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n.kind = DagKind::Blend;
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n.num_inputs = 2;
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n.param_names = {"", "", "", ""};
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n.param_defaults = {0.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {};
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n.body_glsl = [](int /*idx*/) -> std::string {
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return " return vec4(1.0 - (1.0 - a.rgb) * (1.0 - b.rgb), a.a);";
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};
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v.push_back(std::move(n));
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}
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// ── Output (sink — drives fragColor) ─────────────────────────
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{
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DagNodeDef n;
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n.name = "output";
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n.label = "Output";
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n.desc = "canvas DAG output";
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n.kind = DagKind::Output;
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n.num_inputs = 1;
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n.param_names = {"", "", "", ""};
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n.param_defaults = {0.0f, 0.0f, 0.0f, 0.0f};
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n.controls = {};
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n.body_glsl = [](int) -> std::string { return ""; };
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v.push_back(std::move(n));
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}
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return v;
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}();
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return catalog;
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}
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const std::vector<DagNodeDef>& dag_catalog() {
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return build_catalog();
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}
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const DagNodeDef* dag_find(const std::string& name) {
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for (const auto& n : dag_catalog()) {
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if (n.name == name) return &n;
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}
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return nullptr;
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}
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} // namespace fn::gfx
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