luboslenco
147 lines
8.8 KiB
C
147 lines
8.8 KiB
C
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#include "../global.h"
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char *str_tex_voronoi = "\
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fun tex_voronoi(x: float3): float4 { \
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var p: float3 = floor3(x); \
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var f: float3 = frac3(x); \
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var id: float = 0.0; \
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var res: float = 100.0; \
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for (var k: int = 0; k <= 2; k += 1) \
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for (var j: int = 0; j <= 2; j += 1) \
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for (var i: int = 0; i <= 2; i += 1) { \
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var b: float3 = float3(float(i - 1), float(j - 1), float(k - 1)); \
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var pb: float3 = p + b; \
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var snoise_sample: float3 = sample(snoise256, sampler_linear, (pb.xy + float2(3.0, 1.0) * pb.z + 0.5) / 256.0).xyz; \
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var r: float3 = b - f + snoise_sample; \
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var d: float = dot(r, r); \
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if (d < res) { \
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id = dot(p + b, float3(1.0, 57.0, 113.0)); \
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res = d; \
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} \
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} \
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/*var col: float3 = 0.5 + 0.5 * cos(id * 0.35 + float3(0.0, 1.0, 2.0));*/ \
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var col: float3; \
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col.x = 0.5 + 0.5 * cos(id * 0.35 + 0.0); \
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col.y = 0.5 + 0.5 * cos(id * 0.35 + 1.0); \
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col.z = 0.5 + 0.5 * cos(id * 0.35 + 2.0); \
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return float4(col, sqrt(res)); \
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} \
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";
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void voronoi_texture_node_init() {
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char *voronoi_coloring_data = string("%s\n%s", _tr("Intensity"), _tr("Cells"));
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voronoi_texture_node_def =
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GC_ALLOC_INIT(ui_node_t, {.id = 0,
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.name = _tr("Voronoi Texture"),
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.type = "TEX_VORONOI",
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.x = 0,
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.y = 0,
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.color = 0xff4982a0,
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.inputs = any_array_create_from_raw(
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(void *[]){
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GC_ALLOC_INIT(ui_node_socket_t, {.id = 0,
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.node_id = 0,
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.name = _tr("Vector"),
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.type = "VECTOR",
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.color = 0xff6363c7,
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.default_value = f32_array_create_xyz(0.0, 0.0, 0.0),
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.min = 0.0,
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.max = 1.0,
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.precision = 100,
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.display = 0}),
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GC_ALLOC_INIT(ui_node_socket_t, {.id = 0,
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.node_id = 0,
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.name = _tr("Scale"),
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.type = "VALUE",
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.color = 0xffa1a1a1,
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.default_value = f32_array_create_x(5.0),
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.min = 0.0,
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.max = 10.0,
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.precision = 100,
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.display = 0}),
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},
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2),
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.outputs = any_array_create_from_raw(
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(void *[]){
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GC_ALLOC_INIT(ui_node_socket_t, {.id = 0,
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.node_id = 0,
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.name = _tr("Color"),
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.type = "RGBA",
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.color = 0xffc7c729,
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.default_value = f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0),
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.min = 0.0,
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.max = 1.0,
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.precision = 100,
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.display = 0}),
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GC_ALLOC_INIT(ui_node_socket_t, {.id = 0,
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.node_id = 0,
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.name = _tr("Factor"),
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.type = "VALUE",
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.color = 0xffa1a1a1,
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.default_value = f32_array_create_x(1.0),
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.min = 0.0,
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.max = 1.0,
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.precision = 100,
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.display = 0}),
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},
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2),
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.buttons = any_array_create_from_raw(
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(void *[]){
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GC_ALLOC_INIT(ui_node_button_t, {.name = _tr("coloring"),
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.type = "ENUM",
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.output = 0,
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.default_value = f32_array_create_x(0),
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.data = u8_array_create_from_string(voronoi_coloring_data),
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.min = 0.0,
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.max = 1.0,
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.precision = 100,
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.height = 0}),
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},
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1),
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.width = 0,
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.flags = 0});
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gc_root(voronoi_texture_node_def);
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any_array_push(nodes_material_texture, voronoi_texture_node_def);
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any_map_set(parser_material_node_vectors, "TEX_VORONOI", voronoi_texture_node_vector);
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any_map_set(parser_material_node_values, "TEX_VORONOI", voronoi_texture_node_value);
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}
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char *voronoi_texture_node_vector(ui_node_t *node, ui_node_socket_t *socket) {
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node_shader_add_function(parser_material_kong, str_tex_voronoi);
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node_shader_add_texture(parser_material_kong, "snoise256", "$noise256.k");
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char *co = parser_material_get_coord(node);
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char *scale = parser_material_parse_value_input(node->inputs->buffer[1], false);
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ui_node_button_t *but = node->buttons->buffer[0]; // coloring;
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char *coloring = to_upper_case(u8_array_string_at(but->data, but->default_value->buffer[0]));
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coloring = string_copy(string_replace_all(coloring, " ", "_"));
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char *res = "";
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if (string_equals(coloring, "INTENSITY")) {
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res = string_copy(parser_material_to_vec3(string("tex_voronoi(%s * %s).a", co, scale)));
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}
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else { // Cells
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res = string("tex_voronoi(%s * %s).rgb", co, scale);
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}
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return res;
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}
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char *voronoi_texture_node_value(ui_node_t *node, ui_node_socket_t *socket) {
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node_shader_add_function(parser_material_kong, str_tex_voronoi);
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node_shader_add_texture(parser_material_kong, "snoise256", "$noise256.k");
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char *co = parser_material_get_coord(node);
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char *scale = parser_material_parse_value_input(node->inputs->buffer[1], false);
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ui_node_button_t *but = node->buttons->buffer[0]; // coloring
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char *coloring = to_upper_case(u8_array_string_at(but->data, but->default_value->buffer[0]));
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coloring = string_copy(string_replace_all(coloring, " ", "_"));
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char *res = "";
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if (string_equals(coloring, "INTENSITY")) {
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res = string("tex_voronoi(%s * %s).a", co, scale);
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}
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else { // Cells
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res = string("tex_voronoi(%s * %s).r", co, scale);
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}
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return res;
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}
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