470 lines
14 KiB
C++
470 lines
14 KiB
C++
/**************************************************************************/
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/* noise_texture_3d.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "noise_texture_3d.h"
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#include "core/core_string_names.h"
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#include "noise.h"
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NoiseTexture3D::NoiseTexture3D() {
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noise = Ref<Noise>();
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_queue_update();
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}
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NoiseTexture3D::~NoiseTexture3D() {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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if (texture.is_valid()) {
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RS::get_singleton()->free(texture);
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}
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noise_thread.wait_to_finish();
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}
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void NoiseTexture3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("_update_texture"), &NoiseTexture3D::_update_texture);
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ClassDB::bind_method(D_METHOD("_generate_texture"), &NoiseTexture3D::_generate_texture);
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ClassDB::bind_method(D_METHOD("_thread_done", "image"), &NoiseTexture3D::_thread_done);
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ClassDB::bind_method(D_METHOD("set_width", "width"), &NoiseTexture3D::set_width);
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ClassDB::bind_method(D_METHOD("set_height", "height"), &NoiseTexture3D::set_height);
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ClassDB::bind_method(D_METHOD("set_depth", "depth"), &NoiseTexture3D::set_depth);
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ClassDB::bind_method(D_METHOD("set_invert", "invert"), &NoiseTexture3D::set_invert);
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ClassDB::bind_method(D_METHOD("get_invert"), &NoiseTexture3D::get_invert);
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ClassDB::bind_method(D_METHOD("set_seamless", "seamless"), &NoiseTexture3D::set_seamless);
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ClassDB::bind_method(D_METHOD("get_seamless"), &NoiseTexture3D::get_seamless);
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ClassDB::bind_method(D_METHOD("set_seamless_blend_skirt", "seamless_blend_skirt"), &NoiseTexture3D::set_seamless_blend_skirt);
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ClassDB::bind_method(D_METHOD("get_seamless_blend_skirt"), &NoiseTexture3D::get_seamless_blend_skirt);
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ClassDB::bind_method(D_METHOD("set_normalize", "normalize"), &NoiseTexture3D::set_normalize);
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ClassDB::bind_method(D_METHOD("is_normalized"), &NoiseTexture3D::is_normalized);
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ClassDB::bind_method(D_METHOD("set_color_ramp", "gradient"), &NoiseTexture3D::set_color_ramp);
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ClassDB::bind_method(D_METHOD("get_color_ramp"), &NoiseTexture3D::get_color_ramp);
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ClassDB::bind_method(D_METHOD("set_noise", "noise"), &NoiseTexture3D::set_noise);
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ClassDB::bind_method(D_METHOD("get_noise"), &NoiseTexture3D::get_noise);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "1,2048,1,or_greater,suffix:px"), "set_width", "get_width");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "height", PROPERTY_HINT_RANGE, "1,2048,1,or_greater,suffix:px"), "set_height", "get_height");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "depth", PROPERTY_HINT_RANGE, "1,2048,1,or_greater,suffix:px"), "set_depth", "get_depth");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "invert"), "set_invert", "get_invert");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "seamless"), "set_seamless", "get_seamless");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "seamless_blend_skirt", PROPERTY_HINT_RANGE, "0.05,1,0.001"), "set_seamless_blend_skirt", "get_seamless_blend_skirt");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "normalize"), "set_normalize", "is_normalized");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_ramp", "get_color_ramp");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "noise", PROPERTY_HINT_RESOURCE_TYPE, "Noise"), "set_noise", "get_noise");
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}
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void NoiseTexture3D::_validate_property(PropertyInfo &p_property) const {
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if (p_property.name == "seamless_blend_skirt") {
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if (!seamless) {
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p_property.usage = PROPERTY_USAGE_NO_EDITOR;
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}
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}
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}
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void NoiseTexture3D::_set_texture_data(const TypedArray<Image> &p_data) {
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if (!p_data.is_empty()) {
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Vector<Ref<Image>> data;
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data.resize(p_data.size());
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for (int i = 0; i < data.size(); i++) {
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data.write[i] = p_data[i];
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}
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if (texture.is_valid()) {
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RID new_texture = RS::get_singleton()->texture_3d_create(data[0]->get_format(), data[0]->get_width(), data[0]->get_height(), data.size(), false, data);
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RS::get_singleton()->texture_replace(texture, new_texture);
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} else {
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texture = RS::get_singleton()->texture_3d_create(data[0]->get_format(), data[0]->get_width(), data[0]->get_height(), data.size(), false, data);
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}
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}
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emit_changed();
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}
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void NoiseTexture3D::_thread_done(const TypedArray<Image> &p_data) {
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_set_texture_data(p_data);
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noise_thread.wait_to_finish();
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if (regen_queued) {
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noise_thread.start(_thread_function, this);
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regen_queued = false;
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}
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}
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void NoiseTexture3D::_thread_function(void *p_ud) {
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NoiseTexture3D *tex = static_cast<NoiseTexture3D *>(p_ud);
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tex->call_deferred(SNAME("_thread_done"), tex->_generate_texture());
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}
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void NoiseTexture3D::_queue_update() {
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if (update_queued) {
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return;
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}
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update_queued = true;
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call_deferred(SNAME("_update_texture"));
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}
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TypedArray<Image> NoiseTexture3D::_generate_texture() {
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// Prevent memdelete due to unref() on other thread.
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Ref<Noise> ref_noise = noise;
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if (ref_noise.is_null()) {
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return TypedArray<Image>();
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}
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Vector<Ref<Image>> images;
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if (seamless) {
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images = _get_seamless(width, height, depth, invert, seamless_blend_skirt);
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} else {
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images.resize(depth);
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for (int i = 0; i < images.size(); i++) {
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images.write[i] = ref_noise->get_image(width, height, i, invert, true, false);
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}
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}
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// Normalize on whole texture at once rather than on each image individually as it would result in visible artifacts on z (depth) axis.
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if (normalize) {
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images = _normalize(images);
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}
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if (color_ramp.is_valid()) {
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for (int i = 0; i < images.size(); i++) {
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images.write[i] = _modulate_with_gradient(images[i], color_ramp);
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}
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}
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TypedArray<Image> new_data;
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new_data.resize(images.size());
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for (int i = 0; i < new_data.size(); i++) {
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new_data[i] = images[i];
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}
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return new_data;
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}
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Vector<Ref<Image>> NoiseTexture3D::_get_seamless(int p_width, int p_height, int p_depth, bool p_invert, real_t p_blend_skirt) {
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// Prevent memdelete due to unref() on other thread.
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Ref<Noise> ref_noise = noise;
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if (ref_noise.is_null()) {
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return Vector<Ref<Image>>();
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}
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int skirt_depth = MAX(1, p_depth * p_blend_skirt);
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int src_depth = p_depth + skirt_depth;
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Vector<Ref<Image>> images;
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images.resize(src_depth);
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for (int i = 0; i < src_depth; i++) {
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images.write[i] = ref_noise->get_seamless_image(p_width, p_height, i, p_invert, true, p_blend_skirt, false);
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}
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int half_depth = p_depth * 0.5;
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int skirt_edge_z = half_depth + skirt_depth;
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// swap halves on depth.
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for (int i = 0; i < half_depth; i++) {
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Ref<Image> img = images[i];
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images.write[i] = images[i + half_depth];
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images.write[i + half_depth] = img;
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}
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Vector<Ref<Image>> new_images = images;
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new_images.resize(p_depth);
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// scale seamless generation to third dimension.
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for (int z = half_depth; z < skirt_edge_z; z++) {
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int alpha = 255 * (1 - Math::smoothstep(0.1f, 0.9f, float(z - half_depth) / float(skirt_depth)));
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Vector<uint8_t> img = images[z % p_depth]->get_data();
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Vector<uint8_t> skirt = images[(z - half_depth) + p_depth]->get_data();
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Vector<uint8_t> dest;
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dest.resize(images[0]->get_width() * images[0]->get_height() * Image::get_format_pixel_size(images[0]->get_format()));
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for (int i = 0; i < img.size(); i++) {
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uint8_t fg, bg, out;
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fg = skirt[i];
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bg = img[i];
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uint16_t a;
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uint16_t inv_a;
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a = alpha + 1;
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inv_a = 256 - alpha;
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out = (uint8_t)((a * fg + inv_a * bg) >> 8);
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dest.write[i] = out;
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}
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Ref<Image> new_image = memnew(Image(images[0]->get_width(), images[0]->get_height(), false, images[0]->get_format(), dest));
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new_images.write[z % p_depth] = new_image;
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}
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return new_images;
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}
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Vector<Ref<Image>> NoiseTexture3D::_normalize(Vector<Ref<Image>> p_images) {
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real_t min_val = FLT_MAX;
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real_t max_val = -FLT_MAX;
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int w = p_images[0]->get_width();
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int h = p_images[0]->get_height();
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for (int i = 0; i < p_images.size(); i++) {
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Vector<uint8_t> data = p_images[i]->get_data();
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for (int j = 0; j < data.size(); j++) {
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if (data[j] > max_val) {
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max_val = data[j];
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}
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if (data[j] < min_val) {
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min_val = data[j];
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}
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}
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}
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Vector<Ref<Image>> new_images;
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new_images.resize(p_images.size());
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for (int i = 0; i < p_images.size(); i++) {
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Vector<uint8_t> data = p_images[i]->get_data();
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for (int j = 0; j < data.size(); j++) {
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uint8_t value;
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if (max_val == min_val) {
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value = 0;
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} else {
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value = static_cast<uint8_t>(CLAMP((data[j] - min_val) / (max_val - min_val) * 255.f, 0, 255));
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}
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data.write[j] = value;
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}
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Ref<Image> new_image = memnew(Image(w, h, false, Image::FORMAT_L8, data));
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new_images.write[i] = new_image;
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}
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return new_images;
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}
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Ref<Image> NoiseTexture3D::_modulate_with_gradient(Ref<Image> p_image, Ref<Gradient> p_gradient) {
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int w = p_image->get_width();
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int h = p_image->get_height();
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Ref<Image> new_image = Image::create_empty(w, h, false, Image::FORMAT_RGBA8);
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for (int row = 0; row < h; row++) {
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for (int col = 0; col < w; col++) {
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Color pixel_color = p_image->get_pixel(col, row);
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Color ramp_color = p_gradient->get_color_at_offset(pixel_color.get_luminance());
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new_image->set_pixel(col, row, ramp_color);
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}
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}
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return new_image;
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}
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void NoiseTexture3D::_update_texture() {
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bool use_thread = true;
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if (first_time) {
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use_thread = false;
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first_time = false;
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}
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if (use_thread) {
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if (!noise_thread.is_started()) {
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noise_thread.start(_thread_function, this);
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regen_queued = false;
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} else {
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regen_queued = true;
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}
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} else {
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TypedArray<Image> new_data = _generate_texture();
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_set_texture_data(new_data);
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}
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update_queued = false;
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}
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void NoiseTexture3D::set_noise(Ref<Noise> p_noise) {
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if (p_noise == noise) {
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return;
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}
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if (noise.is_valid()) {
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noise->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NoiseTexture3D::_queue_update));
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}
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noise = p_noise;
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if (noise.is_valid()) {
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noise->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NoiseTexture3D::_queue_update));
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}
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_queue_update();
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}
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Ref<Noise> NoiseTexture3D::get_noise() {
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return noise;
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}
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void NoiseTexture3D::set_width(int p_width) {
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ERR_FAIL_COND(p_width <= 0);
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if (p_width == width) {
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return;
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}
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width = p_width;
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_queue_update();
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}
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void NoiseTexture3D::set_height(int p_height) {
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ERR_FAIL_COND(p_height <= 0);
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if (p_height == height) {
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return;
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}
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height = p_height;
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_queue_update();
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}
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void NoiseTexture3D::set_depth(int p_depth) {
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ERR_FAIL_COND(p_depth <= 0);
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if (p_depth == depth) {
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return;
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}
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depth = p_depth;
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_queue_update();
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}
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void NoiseTexture3D::set_invert(bool p_invert) {
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if (p_invert == invert) {
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return;
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}
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invert = p_invert;
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_queue_update();
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}
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bool NoiseTexture3D::get_invert() const {
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return invert;
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}
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void NoiseTexture3D::set_seamless(bool p_seamless) {
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if (p_seamless == seamless) {
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return;
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}
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seamless = p_seamless;
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_queue_update();
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notify_property_list_changed();
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}
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bool NoiseTexture3D::get_seamless() {
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return seamless;
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}
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void NoiseTexture3D::set_seamless_blend_skirt(real_t p_blend_skirt) {
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ERR_FAIL_COND(p_blend_skirt < 0.05 || p_blend_skirt > 1);
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if (p_blend_skirt == seamless_blend_skirt) {
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return;
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}
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seamless_blend_skirt = p_blend_skirt;
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_queue_update();
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}
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real_t NoiseTexture3D::get_seamless_blend_skirt() {
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return seamless_blend_skirt;
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}
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void NoiseTexture3D::set_color_ramp(const Ref<Gradient> &p_gradient) {
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if (p_gradient == color_ramp) {
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return;
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}
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if (color_ramp.is_valid()) {
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color_ramp->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NoiseTexture3D::_queue_update));
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}
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color_ramp = p_gradient;
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if (color_ramp.is_valid()) {
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color_ramp->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NoiseTexture3D::_queue_update));
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}
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_queue_update();
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}
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void NoiseTexture3D::set_normalize(bool p_normalize) {
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if (normalize == p_normalize) {
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return;
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}
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normalize = p_normalize;
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_queue_update();
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}
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bool NoiseTexture3D::is_normalized() const {
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return normalize;
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}
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Ref<Gradient> NoiseTexture3D::get_color_ramp() const {
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return color_ramp;
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}
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int NoiseTexture3D::get_width() const {
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return width;
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}
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int NoiseTexture3D::get_height() const {
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return height;
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}
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int NoiseTexture3D::get_depth() const {
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return depth;
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}
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RID NoiseTexture3D::get_rid() const {
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if (!texture.is_valid()) {
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texture = RS::get_singleton()->texture_3d_placeholder_create();
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}
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return texture;
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}
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Vector<Ref<Image>> NoiseTexture3D::get_data() const {
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ERR_FAIL_COND_V(!texture.is_valid(), Vector<Ref<Image>>());
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return RS::get_singleton()->texture_3d_get(texture);
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}
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Image::Format NoiseTexture3D::get_format() const {
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ERR_FAIL_COND_V(!texture.is_valid(), Image::FORMAT_L8);
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return RS::get_singleton()->texture_3d_get(texture)[0]->get_format();
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}
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