luboslenco
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
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#include "../global.h"
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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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char *parser_material_get_gradient(char *grad, char *co) {
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if (string_equals(grad, "LINEAR")) {
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return string("%s.x", co);
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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("(%s.x + %s.y) * 0.5", co, co);
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}
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else if (string_equals(grad, "RADIAL")) {
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return string("atan2(%s.x, %s.y) / (3.141592 * 2.0) + 0.5", co, co);
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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("max(1.0 - sqrt(%s.x * %s.x + %s.y * %s.y + %s.z * %s.z), 0.0)", co, co, co, co, co, co);
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}
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}
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char *gradient_texture_node_vector(ui_node_t *node, ui_node_socket_t *socket) {
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char *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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char *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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char *f = parser_material_get_gradient(grad, co);
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return parser_material_to_vec3(string("clamp(%s, 0.0, 1.0)", f));
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}
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char *gradient_texture_node_value(ui_node_t *node, ui_node_socket_t *socket) {
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char *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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char *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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char *f = parser_material_get_gradient(grad, co);
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return string("(clamp(%s, 0.0, 1.0))", f);
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}
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