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material.cpp
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material.cpp
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/*************************************************************************/
/* material.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "material.h"
#include "core/config/engine.h"
#include "core/version.h"
#include "scene/main/scene_tree.h"
#include "scene/scene_string_names.h"
void Material::set_next_pass(const Ref<Material> &p_pass) {
for (Ref<Material> pass_child = p_pass; pass_child != nullptr; pass_child = pass_child->get_next_pass()) {
ERR_FAIL_COND_MSG(pass_child == this, "Can't set as next_pass one of its parents to prevent crashes due to recursive loop.");
}
if (next_pass == p_pass) {
return;
}
next_pass = p_pass;
RID next_pass_rid;
if (next_pass.is_valid()) {
next_pass_rid = next_pass->get_rid();
}
RS::get_singleton()->material_set_next_pass(material, next_pass_rid);
}
Ref<Material> Material::get_next_pass() const {
return next_pass;
}
void Material::set_render_priority(int p_priority) {
ERR_FAIL_COND(p_priority < RENDER_PRIORITY_MIN);
ERR_FAIL_COND(p_priority > RENDER_PRIORITY_MAX);
render_priority = p_priority;
RS::get_singleton()->material_set_render_priority(material, p_priority);
}
int Material::get_render_priority() const {
return render_priority;
}
RID Material::get_rid() const {
return material;
}
void Material::_validate_property(PropertyInfo &property) const {
if (!_can_do_next_pass() && property.name == "next_pass") {
property.usage = PROPERTY_USAGE_NONE;
}
if (!_can_use_render_priority() && property.name == "render_priority") {
property.usage = PROPERTY_USAGE_NONE;
}
}
void Material::inspect_native_shader_code() {
SceneTree *st = Object::cast_to<SceneTree>(OS::get_singleton()->get_main_loop());
RID shader = get_shader_rid();
if (st && shader.is_valid()) {
st->call_group("_native_shader_source_visualizer", "_inspect_shader", shader);
}
}
void Material::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_next_pass", "next_pass"), &Material::set_next_pass);
ClassDB::bind_method(D_METHOD("get_next_pass"), &Material::get_next_pass);
ClassDB::bind_method(D_METHOD("set_render_priority", "priority"), &Material::set_render_priority);
ClassDB::bind_method(D_METHOD("get_render_priority"), &Material::get_render_priority);
ClassDB::bind_method(D_METHOD("inspect_native_shader_code"), &Material::inspect_native_shader_code);
ClassDB::set_method_flags(get_class_static(), _scs_create("inspect_native_shader_code"), METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
ADD_PROPERTY(PropertyInfo(Variant::INT, "render_priority", PROPERTY_HINT_RANGE, itos(RENDER_PRIORITY_MIN) + "," + itos(RENDER_PRIORITY_MAX) + ",1"), "set_render_priority", "get_render_priority");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "next_pass", PROPERTY_HINT_RESOURCE_TYPE, "Material"), "set_next_pass", "get_next_pass");
BIND_CONSTANT(RENDER_PRIORITY_MAX);
BIND_CONSTANT(RENDER_PRIORITY_MIN);
}
Material::Material() {
material = RenderingServer::get_singleton()->material_create();
render_priority = 0;
}
Material::~Material() {
RenderingServer::get_singleton()->free(material);
}
///////////////////////////////////
bool ShaderMaterial::_set(const StringName &p_name, const Variant &p_value) {
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (!pr) {
String n = p_name;
if (n.find("param/") == 0) { //backwards compatibility
pr = n.substr(6, n.length());
}
if (n.find("shader_param/") == 0) { //backwards compatibility
pr = n.replace_first("shader_param/", "");
}
}
if (pr) {
set_shader_param(pr, p_value);
return true;
}
}
return false;
}
bool ShaderMaterial::_get(const StringName &p_name, Variant &r_ret) const {
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (!pr) {
String n = p_name;
if (n.find("param/") == 0) { //backwards compatibility
pr = n.substr(6, n.length());
}
if (n.find("shader_param/") == 0) { //backwards compatibility
pr = n.replace_first("shader_param/", "");
}
}
if (pr) {
const Map<StringName, Variant>::Element *E = param_cache.find(pr);
if (E) {
r_ret = E->get();
} else {
r_ret = Variant();
}
return true;
}
}
return false;
}
void ShaderMaterial::_get_property_list(List<PropertyInfo> *p_list) const {
if (!shader.is_null()) {
shader->get_param_list(p_list);
}
}
bool ShaderMaterial::property_can_revert(const String &p_name) {
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (pr) {
Variant default_value = RenderingServer::get_singleton()->shader_get_param_default(shader->get_rid(), pr);
Variant current_value;
_get(p_name, current_value);
return default_value.get_type() != Variant::NIL && default_value != current_value;
}
}
return false;
}
Variant ShaderMaterial::property_get_revert(const String &p_name) {
Variant r_ret;
if (shader.is_valid()) {
StringName pr = shader->remap_param(p_name);
if (pr) {
r_ret = RenderingServer::get_singleton()->shader_get_param_default(shader->get_rid(), pr);
}
}
return r_ret;
}
void ShaderMaterial::set_shader(const Ref<Shader> &p_shader) {
// Only connect/disconnect the signal when running in the editor.
// This can be a slow operation, and `notify_property_list_changed()` (which is called by `_shader_changed()`)
// does nothing in non-editor builds anyway. See GH-34741 for details.
if (shader.is_valid() && Engine::get_singleton()->is_editor_hint()) {
shader->disconnect("changed", callable_mp(this, &ShaderMaterial::_shader_changed));
}
shader = p_shader;
RID rid;
if (shader.is_valid()) {
rid = shader->get_rid();
if (Engine::get_singleton()->is_editor_hint()) {
shader->connect("changed", callable_mp(this, &ShaderMaterial::_shader_changed));
}
}
RS::get_singleton()->material_set_shader(_get_material(), rid);
notify_property_list_changed(); //properties for shader exposed
emit_changed();
}
Ref<Shader> ShaderMaterial::get_shader() const {
return shader;
}
void ShaderMaterial::set_shader_param(const StringName &p_param, const Variant &p_value) {
if (p_value.get_type() == Variant::NIL) {
param_cache.erase(p_param);
RS::get_singleton()->material_set_param(_get_material(), p_param, Variant());
} else {
param_cache[p_param] = p_value;
if (p_value.get_type() == Variant::OBJECT) {
RID tex_rid = p_value;
if (tex_rid == RID()) {
param_cache.erase(p_param);
RS::get_singleton()->material_set_param(_get_material(), p_param, Variant());
} else {
RS::get_singleton()->material_set_param(_get_material(), p_param, tex_rid);
}
} else {
RS::get_singleton()->material_set_param(_get_material(), p_param, p_value);
}
}
}
Variant ShaderMaterial::get_shader_param(const StringName &p_param) const {
if (param_cache.has(p_param)) {
return param_cache[p_param];
} else {
return Variant();
}
}
void ShaderMaterial::_shader_changed() {
notify_property_list_changed(); //update all properties
}
void ShaderMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_shader", "shader"), &ShaderMaterial::set_shader);
ClassDB::bind_method(D_METHOD("get_shader"), &ShaderMaterial::get_shader);
ClassDB::bind_method(D_METHOD("set_shader_param", "param", "value"), &ShaderMaterial::set_shader_param);
ClassDB::bind_method(D_METHOD("get_shader_param", "param"), &ShaderMaterial::get_shader_param);
ClassDB::bind_method(D_METHOD("property_can_revert", "name"), &ShaderMaterial::property_can_revert);
ClassDB::bind_method(D_METHOD("property_get_revert", "name"), &ShaderMaterial::property_get_revert);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shader", PROPERTY_HINT_RESOURCE_TYPE, "Shader"), "set_shader", "get_shader");
}
void ShaderMaterial::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
String f = p_function.operator String();
if ((f == "get_shader_param" || f == "set_shader_param") && p_idx == 0) {
if (shader.is_valid()) {
List<PropertyInfo> pl;
shader->get_param_list(&pl);
for (const PropertyInfo &E : pl) {
r_options->push_back(E.name.replace_first("shader_param/", "").quote());
}
}
}
Resource::get_argument_options(p_function, p_idx, r_options);
}
bool ShaderMaterial::_can_do_next_pass() const {
return shader.is_valid() && shader->get_mode() == Shader::MODE_SPATIAL;
}
bool ShaderMaterial::_can_use_render_priority() const {
return shader.is_valid() && shader->get_mode() == Shader::MODE_SPATIAL;
}
Shader::Mode ShaderMaterial::get_shader_mode() const {
if (shader.is_valid()) {
return shader->get_mode();
} else {
return Shader::MODE_SPATIAL;
}
}
RID ShaderMaterial::get_shader_rid() const {
if (shader.is_valid()) {
return shader->get_rid();
} else {
return RID();
}
}
ShaderMaterial::ShaderMaterial() {
}
ShaderMaterial::~ShaderMaterial() {
}
/////////////////////////////////
Mutex BaseMaterial3D::material_mutex;
SelfList<BaseMaterial3D>::List *BaseMaterial3D::dirty_materials = nullptr;
Map<BaseMaterial3D::MaterialKey, BaseMaterial3D::ShaderData> BaseMaterial3D::shader_map;
BaseMaterial3D::ShaderNames *BaseMaterial3D::shader_names = nullptr;
void BaseMaterial3D::init_shaders() {
dirty_materials = memnew(SelfList<BaseMaterial3D>::List);
shader_names = memnew(ShaderNames);
shader_names->albedo = "albedo";
shader_names->specular = "specular";
shader_names->roughness = "roughness";
shader_names->metallic = "metallic";
shader_names->emission = "emission";
shader_names->emission_energy = "emission_energy";
shader_names->normal_scale = "normal_scale";
shader_names->rim = "rim";
shader_names->rim_tint = "rim_tint";
shader_names->clearcoat = "clearcoat";
shader_names->clearcoat_gloss = "clearcoat_gloss";
shader_names->anisotropy = "anisotropy_ratio";
shader_names->heightmap_scale = "heightmap_scale";
shader_names->subsurface_scattering_strength = "subsurface_scattering_strength";
shader_names->backlight = "backlight";
shader_names->refraction = "refraction";
shader_names->point_size = "point_size";
shader_names->uv1_scale = "uv1_scale";
shader_names->uv1_offset = "uv1_offset";
shader_names->uv2_scale = "uv2_scale";
shader_names->uv2_offset = "uv2_offset";
shader_names->uv1_blend_sharpness = "uv1_blend_sharpness";
shader_names->uv2_blend_sharpness = "uv2_blend_sharpness";
shader_names->particles_anim_h_frames = "particles_anim_h_frames";
shader_names->particles_anim_v_frames = "particles_anim_v_frames";
shader_names->particles_anim_loop = "particles_anim_loop";
shader_names->heightmap_min_layers = "heightmap_min_layers";
shader_names->heightmap_max_layers = "heightmap_max_layers";
shader_names->heightmap_flip = "heightmap_flip";
shader_names->grow = "grow";
shader_names->ao_light_affect = "ao_light_affect";
shader_names->proximity_fade_distance = "proximity_fade_distance";
shader_names->distance_fade_min = "distance_fade_min";
shader_names->distance_fade_max = "distance_fade_max";
shader_names->metallic_texture_channel = "metallic_texture_channel";
shader_names->ao_texture_channel = "ao_texture_channel";
shader_names->clearcoat_texture_channel = "clearcoat_texture_channel";
shader_names->rim_texture_channel = "rim_texture_channel";
shader_names->heightmap_texture_channel = "heightmap_texture_channel";
shader_names->refraction_texture_channel = "refraction_texture_channel";
shader_names->transmittance_color = "transmittance_color";
shader_names->transmittance_depth = "transmittance_depth";
shader_names->transmittance_boost = "transmittance_boost";
shader_names->texture_names[TEXTURE_ALBEDO] = "texture_albedo";
shader_names->texture_names[TEXTURE_METALLIC] = "texture_metallic";
shader_names->texture_names[TEXTURE_ROUGHNESS] = "texture_roughness";
shader_names->texture_names[TEXTURE_EMISSION] = "texture_emission";
shader_names->texture_names[TEXTURE_NORMAL] = "texture_normal";
shader_names->texture_names[TEXTURE_RIM] = "texture_rim";
shader_names->texture_names[TEXTURE_CLEARCOAT] = "texture_clearcoat";
shader_names->texture_names[TEXTURE_FLOWMAP] = "texture_flowmap";
shader_names->texture_names[TEXTURE_AMBIENT_OCCLUSION] = "texture_ambient_occlusion";
shader_names->texture_names[TEXTURE_HEIGHTMAP] = "texture_heightmap";
shader_names->texture_names[TEXTURE_SUBSURFACE_SCATTERING] = "texture_subsurface_scattering";
shader_names->texture_names[TEXTURE_SUBSURFACE_TRANSMITTANCE] = "texture_subsurface_transmittance";
shader_names->texture_names[TEXTURE_BACKLIGHT] = "texture_backlight";
shader_names->texture_names[TEXTURE_REFRACTION] = "texture_refraction";
shader_names->texture_names[TEXTURE_DETAIL_MASK] = "texture_detail_mask";
shader_names->texture_names[TEXTURE_DETAIL_ALBEDO] = "texture_detail_albedo";
shader_names->texture_names[TEXTURE_DETAIL_NORMAL] = "texture_detail_normal";
shader_names->texture_names[TEXTURE_ORM] = "texture_orm";
shader_names->alpha_scissor_threshold = "alpha_scissor_threshold";
shader_names->alpha_hash_scale = "alpha_hash_scale";
shader_names->alpha_antialiasing_edge = "alpha_antialiasing_edge";
shader_names->albedo_texture_size = "albedo_texture_size";
}
Ref<StandardMaterial3D> BaseMaterial3D::materials_for_2d[BaseMaterial3D::MAX_MATERIALS_FOR_2D];
void BaseMaterial3D::finish_shaders() {
for (int i = 0; i < MAX_MATERIALS_FOR_2D; i++) {
materials_for_2d[i].unref();
}
memdelete(dirty_materials);
dirty_materials = nullptr;
memdelete(shader_names);
}
void BaseMaterial3D::_update_shader() {
dirty_materials->remove(&element);
MaterialKey mk = _compute_key();
if (mk == current_key) {
return; //no update required in the end
}
if (shader_map.has(current_key)) {
shader_map[current_key].users--;
if (shader_map[current_key].users == 0) {
//deallocate shader, as it's no longer in use
RS::get_singleton()->free(shader_map[current_key].shader);
shader_map.erase(current_key);
}
}
current_key = mk;
if (shader_map.has(mk)) {
RS::get_singleton()->material_set_shader(_get_material(), shader_map[mk].shader);
shader_map[mk].users++;
return;
}
String texfilter_str;
switch (texture_filter) {
case TEXTURE_FILTER_NEAREST:
texfilter_str = "filter_nearest";
break;
case TEXTURE_FILTER_LINEAR:
texfilter_str = "filter_linear";
break;
case TEXTURE_FILTER_NEAREST_WITH_MIPMAPS:
texfilter_str = "filter_nearest_mipmap";
break;
case TEXTURE_FILTER_LINEAR_WITH_MIPMAPS:
texfilter_str = "filter_linear_mipmap";
break;
case TEXTURE_FILTER_NEAREST_WITH_MIPMAPS_ANISOTROPIC:
texfilter_str = "filter_nearest_mipmap_aniso";
break;
case TEXTURE_FILTER_LINEAR_WITH_MIPMAPS_ANISOTROPIC:
texfilter_str = "filter_linear_mipmap_aniso";
break;
case TEXTURE_FILTER_MAX:
break; // Internal value, skip.
}
if (flags[FLAG_USE_TEXTURE_REPEAT]) {
texfilter_str += ",repeat_enable";
} else {
texfilter_str += ",repeat_disable";
}
//must create a shader!
// Add a comment to describe the shader origin (useful when converting to ShaderMaterial).
String code = vformat(
"// NOTE: Shader automatically converted from " VERSION_NAME " " VERSION_FULL_CONFIG "'s %s.\n\n",
orm ? "ORMMaterial3D" : "StandardMaterial3D");
code += "shader_type spatial;\nrender_mode ";
switch (blend_mode) {
case BLEND_MODE_MIX:
code += "blend_mix";
break;
case BLEND_MODE_ADD:
code += "blend_add";
break;
case BLEND_MODE_SUB:
code += "blend_sub";
break;
case BLEND_MODE_MUL:
code += "blend_mul";
break;
case BLEND_MODE_MAX:
break; // Internal value, skip.
}
DepthDrawMode ddm = depth_draw_mode;
if (features[FEATURE_REFRACTION]) {
ddm = DEPTH_DRAW_ALWAYS;
}
switch (ddm) {
case DEPTH_DRAW_OPAQUE_ONLY:
code += ",depth_draw_opaque";
break;
case DEPTH_DRAW_ALWAYS:
code += ",depth_draw_always";
break;
case DEPTH_DRAW_DISABLED:
code += ",depth_draw_never";
break;
case DEPTH_DRAW_MAX:
break; // Internal value, skip.
}
switch (cull_mode) {
case CULL_BACK:
code += ",cull_back";
break;
case CULL_FRONT:
code += ",cull_front";
break;
case CULL_DISABLED:
code += ",cull_disabled";
break;
case CULL_MAX:
break; // Internal value, skip.
}
switch (diffuse_mode) {
case DIFFUSE_BURLEY:
code += ",diffuse_burley";
break;
case DIFFUSE_LAMBERT:
code += ",diffuse_lambert";
break;
case DIFFUSE_LAMBERT_WRAP:
code += ",diffuse_lambert_wrap";
break;
case DIFFUSE_TOON:
code += ",diffuse_toon";
break;
case DIFFUSE_MAX:
break; // Internal value, skip.
}
switch (specular_mode) {
case SPECULAR_SCHLICK_GGX:
code += ",specular_schlick_ggx";
break;
case SPECULAR_BLINN:
code += ",specular_blinn";
break;
case SPECULAR_PHONG:
code += ",specular_phong";
break;
case SPECULAR_TOON:
code += ",specular_toon";
break;
case SPECULAR_DISABLED:
code += ",specular_disabled";
break;
case SPECULAR_MAX:
break; // Internal value, skip.
}
if (features[FEATURE_SUBSURFACE_SCATTERING] && flags[FLAG_SUBSURFACE_MODE_SKIN]) {
code += ",sss_mode_skin";
}
if (shading_mode == SHADING_MODE_UNSHADED) {
code += ",unshaded";
}
if (flags[FLAG_DISABLE_DEPTH_TEST]) {
code += ",depth_test_disabled";
}
if (flags[FLAG_PARTICLE_TRAILS_MODE]) {
code += ",particle_trails";
}
if (shading_mode == SHADING_MODE_PER_VERTEX) {
code += ",vertex_lighting";
}
if (flags[FLAG_DONT_RECEIVE_SHADOWS]) {
code += ",shadows_disabled";
}
if (flags[FLAG_DISABLE_AMBIENT_LIGHT]) {
code += ",ambient_light_disabled";
}
if (flags[FLAG_USE_SHADOW_TO_OPACITY]) {
code += ",shadow_to_opacity";
}
if (transparency == TRANSPARENCY_ALPHA_DEPTH_PRE_PASS) {
code += ",depth_prepass_alpha";
}
// Although its technically possible to do alpha antialiasing without using alpha hash or alpha scissor,
// it is restricted in the base material because it has no use, and abusing it with regular Alpha blending can
// saturate the MSAA mask
if (transparency == TRANSPARENCY_ALPHA_HASH || transparency == TRANSPARENCY_ALPHA_SCISSOR) {
// alpha antialiasing is only useful in ALPHA_HASH or ALPHA_SCISSOR
if (alpha_antialiasing_mode == ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE) {
code += ",alpha_to_coverage";
} else if (alpha_antialiasing_mode == ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE) {
code += ",alpha_to_coverage_and_one";
}
}
code += ";\n";
code += "uniform vec4 albedo : hint_color;\n";
code += "uniform sampler2D texture_albedo : hint_albedo," + texfilter_str + ";\n";
if (grow_enabled) {
code += "uniform float grow;\n";
}
if (proximity_fade_enabled) {
code += "uniform float proximity_fade_distance;\n";
}
if (distance_fade != DISTANCE_FADE_DISABLED) {
code += "uniform float distance_fade_min;\n";
code += "uniform float distance_fade_max;\n";
}
// alpha scissor is only valid if there is not antialiasing edge
// alpha hash is valid whenever, but not with alpha scissor
if (transparency == TRANSPARENCY_ALPHA_SCISSOR) {
code += "uniform float alpha_scissor_threshold;\n";
} else if (transparency == TRANSPARENCY_ALPHA_HASH) {
code += "uniform float alpha_hash_scale;\n";
}
// if alpha antialiasing isn't off, add in the edge variable
if (alpha_antialiasing_mode != ALPHA_ANTIALIASING_OFF &&
(transparency == TRANSPARENCY_ALPHA_SCISSOR || transparency == TRANSPARENCY_ALPHA_HASH)) {
code += "uniform float alpha_antialiasing_edge;\n";
code += "uniform ivec2 albedo_texture_size;\n";
}
code += "uniform float point_size : hint_range(0,128);\n";
//TODO ALL HINTS
if (!orm) {
code += "uniform float roughness : hint_range(0,1);\n";
code += "uniform sampler2D texture_metallic : hint_white," + texfilter_str + ";\n";
code += "uniform vec4 metallic_texture_channel;\n";
switch (roughness_texture_channel) {
case TEXTURE_CHANNEL_RED: {
code += "uniform sampler2D texture_roughness : hint_roughness_r," + texfilter_str + ";\n";
} break;
case TEXTURE_CHANNEL_GREEN: {
code += "uniform sampler2D texture_roughness : hint_roughness_g," + texfilter_str + ";\n";
} break;
case TEXTURE_CHANNEL_BLUE: {
code += "uniform sampler2D texture_roughness : hint_roughness_b," + texfilter_str + ";\n";
} break;
case TEXTURE_CHANNEL_ALPHA: {
code += "uniform sampler2D texture_roughness : hint_roughness_a," + texfilter_str + ";\n";
} break;
case TEXTURE_CHANNEL_GRAYSCALE: {
code += "uniform sampler2D texture_roughness : hint_roughness_gray," + texfilter_str + ";\n";
} break;
case TEXTURE_CHANNEL_MAX:
break; // Internal value, skip.
}
code += "uniform float specular;\n";
code += "uniform float metallic;\n";
} else {
code += "uniform sampler2D texture_orm : hint_roughness_g," + texfilter_str + ";\n";
}
if (billboard_mode == BILLBOARD_PARTICLES) {
code += "uniform int particles_anim_h_frames;\n";
code += "uniform int particles_anim_v_frames;\n";
code += "uniform bool particles_anim_loop;\n";
}
if (features[FEATURE_EMISSION]) {
code += "uniform sampler2D texture_emission : hint_black_albedo," + texfilter_str + ";\n";
code += "uniform vec4 emission : hint_color;\n";
code += "uniform float emission_energy;\n";
}
if (features[FEATURE_REFRACTION]) {
code += "uniform sampler2D texture_refraction : " + texfilter_str + ";\n";
code += "uniform float refraction : hint_range(-16,16);\n";
code += "uniform vec4 refraction_texture_channel;\n";
}
if (features[FEATURE_NORMAL_MAPPING]) {
code += "uniform sampler2D texture_normal : hint_roughness_normal," + texfilter_str + ";\n";
code += "uniform float normal_scale : hint_range(-16,16);\n";
}
if (features[FEATURE_RIM]) {
code += "uniform float rim : hint_range(0,1);\n";
code += "uniform float rim_tint : hint_range(0,1);\n";
code += "uniform sampler2D texture_rim : hint_white," + texfilter_str + ";\n";
}
if (features[FEATURE_CLEARCOAT]) {
code += "uniform float clearcoat : hint_range(0,1);\n";
code += "uniform float clearcoat_gloss : hint_range(0,1);\n";
code += "uniform sampler2D texture_clearcoat : hint_white," + texfilter_str + ";\n";
}
if (features[FEATURE_ANISOTROPY]) {
code += "uniform float anisotropy_ratio : hint_range(0,256);\n";
code += "uniform sampler2D texture_flowmap : hint_aniso," + texfilter_str + ";\n";
}
if (features[FEATURE_AMBIENT_OCCLUSION]) {
code += "uniform sampler2D texture_ambient_occlusion : hint_white, " + texfilter_str + ";\n";
code += "uniform vec4 ao_texture_channel;\n";
code += "uniform float ao_light_affect;\n";
}
if (features[FEATURE_DETAIL]) {
code += "uniform sampler2D texture_detail_albedo : hint_albedo," + texfilter_str + ";\n";
code += "uniform sampler2D texture_detail_normal : hint_normal," + texfilter_str + ";\n";
code += "uniform sampler2D texture_detail_mask : hint_white," + texfilter_str + ";\n";
}
if (features[FEATURE_SUBSURFACE_SCATTERING]) {
code += "uniform float subsurface_scattering_strength : hint_range(0,1);\n";
code += "uniform sampler2D texture_subsurface_scattering : hint_white," + texfilter_str + ";\n";
}
if (features[FEATURE_SUBSURFACE_TRANSMITTANCE]) {
code += "uniform vec4 transmittance_color : hint_color;\n";
code += "uniform float transmittance_depth;\n";
code += "uniform sampler2D texture_subsurface_transmittance : hint_white," + texfilter_str + ";\n";
code += "uniform float transmittance_boost;\n";
}
if (features[FEATURE_BACKLIGHT]) {
code += "uniform vec4 backlight : hint_color;\n";
code += "uniform sampler2D texture_backlight : hint_black," + texfilter_str + ";\n";
}
if (features[FEATURE_HEIGHT_MAPPING]) {
code += "uniform sampler2D texture_heightmap : hint_black," + texfilter_str + ";\n";
code += "uniform float heightmap_scale;\n";
code += "uniform int heightmap_min_layers;\n";
code += "uniform int heightmap_max_layers;\n";
code += "uniform vec2 heightmap_flip;\n";
}
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
code += "varying vec3 uv1_triplanar_pos;\n";
}
if (flags[FLAG_UV2_USE_TRIPLANAR]) {
code += "varying vec3 uv2_triplanar_pos;\n";
}
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
code += "uniform float uv1_blend_sharpness;\n";
code += "varying vec3 uv1_power_normal;\n";
}
if (flags[FLAG_UV2_USE_TRIPLANAR]) {
code += "uniform float uv2_blend_sharpness;\n";
code += "varying vec3 uv2_power_normal;\n";
}
code += "uniform vec3 uv1_scale;\n";
code += "uniform vec3 uv1_offset;\n";
code += "uniform vec3 uv2_scale;\n";
code += "uniform vec3 uv2_offset;\n";
code += "\n\n";
code += "void vertex() {\n";
if (flags[FLAG_SRGB_VERTEX_COLOR]) {
code += " if (!OUTPUT_IS_SRGB) {\n";
code += " COLOR.rgb = mix(pow((COLOR.rgb + vec3(0.055)) * (1.0 / (1.0 + 0.055)), vec3(2.4)), COLOR.rgb * (1.0 / 12.92), lessThan(COLOR.rgb, vec3(0.04045)));\n";
code += " }\n";
}
if (flags[FLAG_USE_POINT_SIZE]) {
code += " POINT_SIZE=point_size;\n";
}
if (shading_mode == SHADING_MODE_PER_VERTEX) {
code += " ROUGHNESS=roughness;\n";
}
if (!flags[FLAG_UV1_USE_TRIPLANAR]) {
code += " UV=UV*uv1_scale.xy+uv1_offset.xy;\n";
}
switch (billboard_mode) {
case BILLBOARD_DISABLED: {
} break;
case BILLBOARD_ENABLED: {
code += " MODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],CAMERA_MATRIX[1],CAMERA_MATRIX[2],WORLD_MATRIX[3]);\n";
if (flags[FLAG_BILLBOARD_KEEP_SCALE]) {
code += " MODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz), 0.0, 0.0, 0.0),vec4(0.0, length(WORLD_MATRIX[1].xyz), 0.0, 0.0),vec4(0.0, 0.0, length(WORLD_MATRIX[2].xyz), 0.0),vec4(0.0, 0.0, 0.0, 1.0));\n";
}
} break;
case BILLBOARD_FIXED_Y: {
code += " MODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(vec4(normalize(cross(vec3(0.0, 1.0, 0.0), CAMERA_MATRIX[2].xyz)),0.0),vec4(0.0, 1.0, 0.0, 0.0),vec4(normalize(cross(CAMERA_MATRIX[0].xyz, vec3(0.0, 1.0, 0.0))),0.0),WORLD_MATRIX[3]);\n";
if (flags[FLAG_BILLBOARD_KEEP_SCALE]) {
code += " MODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz), 0.0, 0.0, 0.0),vec4(0.0, length(WORLD_MATRIX[1].xyz), 0.0, 0.0),vec4(0.0, 0.0, length(WORLD_MATRIX[2].xyz), 0.0),vec4(0.0, 0.0, 0.0, 1.0));\n";
}
} break;
case BILLBOARD_PARTICLES: {
//make billboard
code += " mat4 mat_world = mat4(normalize(CAMERA_MATRIX[0])*length(WORLD_MATRIX[0]),normalize(CAMERA_MATRIX[1])*length(WORLD_MATRIX[0]),normalize(CAMERA_MATRIX[2])*length(WORLD_MATRIX[2]),WORLD_MATRIX[3]);\n";
//rotate by rotation
code += " mat_world = mat_world * mat4( vec4(cos(INSTANCE_CUSTOM.x),-sin(INSTANCE_CUSTOM.x), 0.0, 0.0), vec4(sin(INSTANCE_CUSTOM.x), cos(INSTANCE_CUSTOM.x), 0.0, 0.0),vec4(0.0, 0.0, 1.0, 0.0),vec4(0.0, 0.0, 0.0, 1.0));\n";
//set modelview
code += " MODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat_world;\n";
//handle animation
code += " float h_frames = float(particles_anim_h_frames);\n";
code += " float v_frames = float(particles_anim_v_frames);\n";
code += " float particle_total_frames = float(particles_anim_h_frames * particles_anim_v_frames);\n";
code += " float particle_frame = floor(INSTANCE_CUSTOM.z * float(particle_total_frames));\n";
code += " if (!particles_anim_loop) {\n";
code += " particle_frame = clamp(particle_frame, 0.0, particle_total_frames - 1.0);\n";
code += " } else {\n";
code += " particle_frame = mod(particle_frame, particle_total_frames);\n";
code += " }";
code += " UV /= vec2(h_frames, v_frames);\n";
code += " UV += vec2(mod(particle_frame, h_frames) / h_frames, floor((particle_frame + 0.5) / h_frames) / v_frames);\n";
} break;
case BILLBOARD_MAX:
break; // Internal value, skip.
}
if (flags[FLAG_FIXED_SIZE]) {
code += " if (PROJECTION_MATRIX[3][3] != 0.0) {\n";
//orthogonal matrix, try to do about the same
//with viewport size
code += " float h = abs(1.0 / (2.0 * PROJECTION_MATRIX[1][1]));\n";
code += " float sc = (h * 2.0); //consistent with Y-fov\n";
code += " MODELVIEW_MATRIX[0]*=sc;\n";
code += " MODELVIEW_MATRIX[1]*=sc;\n";
code += " MODELVIEW_MATRIX[2]*=sc;\n";
code += " } else {\n";
//just scale by depth
code += " float sc = -(MODELVIEW_MATRIX)[3].z;\n";
code += " MODELVIEW_MATRIX[0]*=sc;\n";
code += " MODELVIEW_MATRIX[1]*=sc;\n";
code += " MODELVIEW_MATRIX[2]*=sc;\n";
code += " }\n";
}
if (detail_uv == DETAIL_UV_2 && !flags[FLAG_UV2_USE_TRIPLANAR]) {
code += " UV2=UV2*uv2_scale.xy+uv2_offset.xy;\n";
}
if (flags[FLAG_UV1_USE_TRIPLANAR] || flags[FLAG_UV2_USE_TRIPLANAR]) {
//generate tangent and binormal in world space
code += " TANGENT = vec3(0.0,0.0,-1.0) * abs(NORMAL.x);\n";
code += " TANGENT+= vec3(1.0,0.0,0.0) * abs(NORMAL.y);\n";
code += " TANGENT+= vec3(1.0,0.0,0.0) * abs(NORMAL.z);\n";
code += " TANGENT = normalize(TANGENT);\n";
code += " BINORMAL = vec3(0.0,1.0,0.0) * abs(NORMAL.x);\n";
code += " BINORMAL+= vec3(0.0,0.0,-1.0) * abs(NORMAL.y);\n";
code += " BINORMAL+= vec3(0.0,1.0,0.0) * abs(NORMAL.z);\n";
code += " BINORMAL = normalize(BINORMAL);\n";
}
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
if (flags[FLAG_UV1_USE_WORLD_TRIPLANAR]) {
code += " uv1_power_normal=pow(abs(mat3(WORLD_MATRIX) * NORMAL),vec3(uv1_blend_sharpness));\n";
code += " uv1_triplanar_pos = (WORLD_MATRIX * vec4(VERTEX, 1.0f)).xyz * uv1_scale + uv1_offset;\n";
} else {
code += " uv1_power_normal=pow(abs(NORMAL),vec3(uv1_blend_sharpness));\n";
code += " uv1_triplanar_pos = VERTEX * uv1_scale + uv1_offset;\n";
}
code += " uv1_power_normal/=dot(uv1_power_normal,vec3(1.0));\n";
code += " uv1_triplanar_pos *= vec3(1.0,-1.0, 1.0);\n";
}
if (flags[FLAG_UV2_USE_TRIPLANAR]) {
if (flags[FLAG_UV2_USE_WORLD_TRIPLANAR]) {
code += " uv2_power_normal=pow(abs(mat3(WORLD_MATRIX) * NORMAL), vec3(uv2_blend_sharpness));\n";
code += " uv2_triplanar_pos = (WORLD_MATRIX * vec4(VERTEX, 1.0f)).xyz * uv2_scale + uv2_offset;\n";
} else {
code += " uv2_power_normal=pow(abs(NORMAL), vec3(uv2_blend_sharpness));\n";
code += " uv2_triplanar_pos = VERTEX * uv2_scale + uv2_offset;\n";
}
code += " uv2_power_normal/=dot(uv2_power_normal,vec3(1.0));\n";
code += " uv2_triplanar_pos *= vec3(1.0,-1.0, 1.0);\n";
}
if (grow_enabled) {
code += " VERTEX+=NORMAL*grow;\n";
}
code += "}\n";
code += "\n\n";
if (flags[FLAG_UV1_USE_TRIPLANAR] || flags[FLAG_UV2_USE_TRIPLANAR]) {
code += "vec4 triplanar_texture(sampler2D p_sampler,vec3 p_weights,vec3 p_triplanar_pos) {\n";
code += " vec4 samp=vec4(0.0);\n";
code += " samp+= texture(p_sampler,p_triplanar_pos.xy) * p_weights.z;\n";
code += " samp+= texture(p_sampler,p_triplanar_pos.xz) * p_weights.y;\n";
code += " samp+= texture(p_sampler,p_triplanar_pos.zy * vec2(-1.0,1.0)) * p_weights.x;\n";
code += " return samp;\n";
code += "}\n";
}
code += "\n\n";
code += "void fragment() {\n";
if (!flags[FLAG_UV1_USE_TRIPLANAR]) {
code += " vec2 base_uv = UV;\n";
}
if ((features[FEATURE_DETAIL] && detail_uv == DETAIL_UV_2) || (features[FEATURE_AMBIENT_OCCLUSION] && flags[FLAG_AO_ON_UV2]) || (features[FEATURE_EMISSION] && flags[FLAG_EMISSION_ON_UV2])) {
code += " vec2 base_uv2 = UV2;\n";
}
if (features[FEATURE_HEIGHT_MAPPING] && flags[FLAG_UV1_USE_TRIPLANAR]) {
// Display both resource name and albedo texture name.
// Materials are often built-in to scenes, so displaying the resource name alone may not be meaningful.
// On the other hand, albedo textures are almost always external to the scene.
if (textures[TEXTURE_ALBEDO].is_valid()) {
WARN_PRINT(vformat("%s (albedo %s): Height mapping is not supported on triplanar materials. Ignoring height mapping in favor of triplanar mapping.", get_path(), textures[TEXTURE_ALBEDO]->get_path()));
} else if (!get_path().is_empty()) {
WARN_PRINT(vformat("%s: Height mapping is not supported on triplanar materials. Ignoring height mapping in favor of triplanar mapping.", get_path()));
} else {
// Resource wasn't saved yet.
WARN_PRINT("Height mapping is not supported on triplanar materials. Ignoring height mapping in favor of triplanar mapping.");
}
}
if (!RenderingServer::get_singleton()->is_low_end() && features[FEATURE_HEIGHT_MAPPING] && !flags[FLAG_UV1_USE_TRIPLANAR]) { //heightmap not supported with triplanar
code += " {\n";
code += " vec3 view_dir = normalize(normalize(-VERTEX)*mat3(TANGENT*heightmap_flip.x,-BINORMAL*heightmap_flip.y,NORMAL));\n"; // binormal is negative due to mikktspace, flip 'unflips' it ;-)
if (deep_parallax) {
code += " float num_layers = mix(float(heightmap_max_layers),float(heightmap_min_layers), abs(dot(vec3(0.0, 0.0, 1.0), view_dir)));\n";
code += " float layer_depth = 1.0 / num_layers;\n";
code += " float current_layer_depth = 0.0;\n";
code += " vec2 P = view_dir.xy * heightmap_scale;\n";
code += " vec2 delta = P / num_layers;\n";
code += " vec2 ofs = base_uv;\n";
if (flags[FLAG_INVERT_HEIGHTMAP]) {
code += " float depth = texture(texture_heightmap, ofs).r;\n";
} else {
code += " float depth = 1.0 - texture(texture_heightmap, ofs).r;\n";
}
code += " float current_depth = 0.0;\n";
code += " while(current_depth < depth) {\n";
code += " ofs -= delta;\n";
if (flags[FLAG_INVERT_HEIGHTMAP]) {
code += " depth = texture(texture_heightmap, ofs).r;\n";
} else {
code += " depth = 1.0 - texture(texture_heightmap, ofs).r;\n";
}
code += " current_depth += layer_depth;\n";
code += " }\n";
code += " vec2 prev_ofs = ofs + delta;\n";
code += " float after_depth = depth - current_depth;\n";
if (flags[FLAG_INVERT_HEIGHTMAP]) {
code += " float before_depth = texture(texture_heightmap, prev_ofs).r - current_depth + layer_depth;\n";
} else {
code += " float before_depth = ( 1.0 - texture(texture_heightmap, prev_ofs).r ) - current_depth + layer_depth;\n";
}
code += " float weight = after_depth / (after_depth - before_depth);\n";
code += " ofs = mix(ofs,prev_ofs,weight);\n";
} else {
if (flags[FLAG_INVERT_HEIGHTMAP]) {
code += " float depth = texture(texture_heightmap, base_uv).r;\n";
} else {
code += " float depth = 1.0 - texture(texture_heightmap, base_uv).r;\n";
}
// Use offset limiting to improve the appearance of non-deep parallax.
// This reduces the impression of depth, but avoids visible warping in the distance.
code += " vec2 ofs = base_uv - view_dir.xy * depth * heightmap_scale;\n";
}
code += " base_uv=ofs;\n";
if (features[FEATURE_DETAIL] && detail_uv == DETAIL_UV_2) {
code += " base_uv2-=ofs;\n";
}
code += " }\n";
}
if (flags[FLAG_USE_POINT_SIZE]) {
code += " vec4 albedo_tex = texture(texture_albedo,POINT_COORD);\n";
} else {
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
code += " vec4 albedo_tex = triplanar_texture(texture_albedo,uv1_power_normal,uv1_triplanar_pos);\n";
} else {
code += " vec4 albedo_tex = texture(texture_albedo,base_uv);\n";
}
}
if (flags[FLAG_ALBEDO_TEXTURE_FORCE_SRGB]) {
code += " albedo_tex.rgb = mix(pow((albedo_tex.rgb + vec3(0.055)) * (1.0 / (1.0 + 0.055)),vec3(2.4)),albedo_tex.rgb.rgb * (1.0 / 12.92),lessThan(albedo_tex.rgb,vec3(0.04045)));\n";
}
if (flags[FLAG_ALBEDO_FROM_VERTEX_COLOR]) {
code += " albedo_tex *= COLOR;\n";
}
code += " ALBEDO = albedo.rgb * albedo_tex.rgb;\n";
if (!orm) {
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
code += " float metallic_tex = dot(triplanar_texture(texture_metallic,uv1_power_normal,uv1_triplanar_pos),metallic_texture_channel);\n";
} else {
code += " float metallic_tex = dot(texture(texture_metallic,base_uv),metallic_texture_channel);\n";
}
code += " METALLIC = metallic_tex * metallic;\n";
switch (roughness_texture_channel) {