63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
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void gradient_texture_node_init() {
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any_array_push(nodes_material_texture, gradient_texture_node_def);
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any_map_set(parser_material_node_vectors, "TEX_GRADIENT", gradient_texture_node_vector);
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any_map_set(parser_material_node_values, "TEX_GRADIENT", gradient_texture_node_value);
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}
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string_t *parser_material_get_gradient(string_t *grad, string_t *co) {
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if (string_equals(grad, "LINEAR")) {
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return string_join(co, ".x");
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}
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else if (string_equals(grad, "QUADRATIC")) {
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return "0.0";
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}
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else if (string_equals(grad, "EASING")) {
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return "0.0";
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}
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else if (string_equals(grad, "DIAGONAL")) {
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return string_join(string_join(string_join(string_join("(", co), ".x + "), co), ".y) * 0.5");
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}
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else if (string_equals(grad, "RADIAL")) {
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return string_join(string_join(string_join(string_join("atan2(", co), ".x, "), co), ".y) / (3.141592 * 2.0) + 0.5");
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}
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else if (string_equals(grad, "QUADRATIC_SPHERE")) {
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return "0.0";
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}
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else { // "SPHERICAL"
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return string_join(
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string_join(
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string_join(
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string_join(
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string_join(string_join(string_join(string_join(string_join(string_join(string_join(string_join("max(1.0 - sqrt(", co), ".x * "), co),
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".x + "),
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co),
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".y * "),
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co),
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".y + "),
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co),
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".z * "),
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co),
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".z), 0.0)");
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}
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}
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string_t *gradient_texture_node_vector(ui_node_t *node, ui_node_socket_t *socket) {
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string_t *co = parser_material_get_coord(node);
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ui_node_button_t *but = node->buttons->buffer[0]; // gradient_type;
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string_t *grad = to_upper_case(u8_array_string_at(but->data, but->default_value->buffer[0]));
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grad = string_copy(string_replace_all(grad, " ", "_"));
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string_t *f = parser_material_get_gradient(grad, co);
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string_t *res = parser_material_to_vec3(string_join(string_join("clamp(", f), ", 0.0, 1.0)"));
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return res;
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}
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string_t *gradient_texture_node_value(ui_node_t *node, ui_node_socket_t *socket) {
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string_t *co = parser_material_get_coord(node);
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ui_node_button_t *but = node->buttons->buffer[0]; // gradient_type;
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string_t *grad = to_upper_case(u8_array_string_at(but->data, but->default_value->buffer[0]));
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grad = string_copy(string_replace_all(grad, " ", "_"));
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string_t *f = parser_material_get_gradient(grad, co);
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string_t *res = string_join(string_join("(clamp(", f), ", 0.0, 1.0))");
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return res;
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}
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