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Implement Curve3Texture

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* This was required by users in some scenarios, such as animating individual axes over time with a single texture.
* Examples: Shaders, Particles, etc.
* CurveTexture now defaults to RGB, can be changed to Red if needed, this allows to freely exchange them.
This commit is contained in:
reduz 2021-07-01 15:25:35 -03:00
parent ad8a2b3d52
commit d6893cb2e8
5 changed files with 328 additions and 17 deletions
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23
doc/classes/Curve3Texture.xml Normal file
View file

@ -0,0 +1,23 @@
<?xml version="1.0" encoding="UTF-8" ?>
<class name="Curve3Texture" inherits="Texture2D" version="4.0">
<brief_description>
</brief_description>
<description>
</description>
<tutorials>
</tutorials>
<methods>
</methods>
<members>
<member name="curve_x" type="Curve" setter="set_curve_x" getter="get_curve_x">
</member>
<member name="curve_y" type="Curve" setter="set_curve_y" getter="get_curve_y">
</member>
<member name="curve_z" type="Curve" setter="set_curve_z" getter="get_curve_z">
</member>
<member name="width" type="int" setter="set_width" getter="get_width" default="2048">
</member>
</members>
<constants>
</constants>
</class>

6
doc/classes/CurveTexture.xml
View file

@ -14,10 +14,16 @@
<member name="curve" type="Curve" setter="set_curve" getter="get_curve">
The [code]curve[/code] rendered onto the texture.
</member>
<member name="texture_mode" type="int" setter="set_texture_mode" getter="get_texture_mode" enum="CurveTexture.TextureMode" default="0">
</member>
<member name="width" type="int" setter="set_width" getter="get_width" default="2048">
The width of the texture.
</member>
</members>
<constants>
<constant name="TEXTURE_MODE_RGB" value="0" enum="TextureMode">
</constant>
<constant name="TEXTURE_MODE_RED" value="1" enum="TextureMode">
</constant>
</constants>
</class>

1
scene/register_scene_types.cpp
View file

@ -774,6 +774,7 @@ void register_scene_types() {
ClassDB::register_class<AtlasTexture>();
ClassDB::register_class<MeshTexture>();
ClassDB::register_class<CurveTexture>();
ClassDB::register_class<Curve3Texture>();
ClassDB::register_class<GradientTexture>();
ClassDB::register_class<ProxyTexture>();
ClassDB::register_class<AnimatedTexture>();

251
scene/resources/texture.cpp
View file

@ -1407,14 +1407,26 @@ void CurveTexture::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_curve", "curve"), &CurveTexture::set_curve);
ClassDB::bind_method(D_METHOD("get_curve"), &CurveTexture::get_curve);
ClassDB::bind_method(D_METHOD("set_texture_mode", "texture_mode"), &CurveTexture::set_texture_mode);
ClassDB::bind_method(D_METHOD("get_texture_mode"), &CurveTexture::get_texture_mode);
ClassDB::bind_method(D_METHOD("_update"), &CurveTexture::_update);
ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "32,4096"), "set_width", "get_width");
ADD_PROPERTY(PropertyInfo(Variant::INT, "texture_mode", PROPERTY_HINT_ENUM, "RGB,Red"), "set_texture_mode", "get_texture_mode");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve", "get_curve");
BIND_ENUM_CONSTANT(TEXTURE_MODE_RGB);
BIND_ENUM_CONSTANT(TEXTURE_MODE_RED);
}
void CurveTexture::set_width(int p_width) {
ERR_FAIL_COND(p_width < 32 || p_width > 4096);
if (_width == p_width) {
return;
}
_width = p_width;
_update();
}
@ -1450,7 +1462,7 @@ void CurveTexture::set_curve(Ref<Curve> p_curve) {
void CurveTexture::_update() {
Vector<uint8_t> data;
data.resize(_width * sizeof(float));
data.resize(_width * sizeof(float) * (texture_mode == TEXTURE_MODE_RGB ? 3 : 1));
// The array is locked in that scope
{
@ -1461,24 +1473,42 @@ void CurveTexture::_update() {
Curve &curve = **_curve;
for (int i = 0; i < _width; ++i) {
float t = i / static_cast<float>(_width);
wd[i] = curve.interpolate_baked(t);
if (texture_mode == TEXTURE_MODE_RGB) {
wd[i * 3 + 0] = curve.interpolate_baked(t);
wd[i * 3 + 1] = wd[i * 3 + 0];
wd[i * 3 + 2] = wd[i * 3 + 0];
} else {
wd[i] = curve.interpolate_baked(t);
}
}
} else {
for (int i = 0; i < _width; ++i) {
wd[i] = 0;
if (texture_mode == TEXTURE_MODE_RGB) {
wd[i * 3 + 0] = 0;
wd[i * 3 + 1] = 0;
wd[i * 3 + 2] = 0;
} else {
wd[i] = 0;
}
}
}
}
Ref<Image> image = memnew(Image(_width, 1, false, Image::FORMAT_RF, data));
Ref<Image> image = memnew(Image(_width, 1, false, texture_mode == TEXTURE_MODE_RGB ? Image::FORMAT_RGBF : Image::FORMAT_RF, data));
if (_texture.is_valid()) {
RID new_texture = RS::get_singleton()->texture_2d_create(image);
RS::get_singleton()->texture_replace(_texture, new_texture);
if (_current_texture_mode != texture_mode || _current_width != _width) {
RID new_texture = RS::get_singleton()->texture_2d_create(image);
RS::get_singleton()->texture_replace(_texture, new_texture);
} else {
RS::get_singleton()->texture_2d_update(_texture, image);
}
} else {
_texture = RS::get_singleton()->texture_2d_create(image);
}
_current_texture_mode = texture_mode;
_current_width = _width;
emit_changed();
}
@ -1487,6 +1517,17 @@ Ref<Curve> CurveTexture::get_curve() const {
return _curve;
}
void CurveTexture::set_texture_mode(TextureMode p_mode) {
if (texture_mode == p_mode) {
return;
}
texture_mode = p_mode;
_update();
}
CurveTexture::TextureMode CurveTexture::get_texture_mode() const {
return texture_mode;
}
RID CurveTexture::get_rid() const {
if (!_texture.is_valid()) {
_texture = RS::get_singleton()->texture_2d_placeholder_create();
@ -1504,6 +1545,204 @@ CurveTexture::~CurveTexture() {
//////////////////
void Curve3Texture::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_width", "width"), &Curve3Texture::set_width);
ClassDB::bind_method(D_METHOD("set_curve_x", "curve"), &Curve3Texture::set_curve_x);
ClassDB::bind_method(D_METHOD("get_curve_x"), &Curve3Texture::get_curve_x);
ClassDB::bind_method(D_METHOD("set_curve_y", "curve"), &Curve3Texture::set_curve_y);
ClassDB::bind_method(D_METHOD("get_curve_y"), &Curve3Texture::get_curve_y);
ClassDB::bind_method(D_METHOD("set_curve_z", "curve"), &Curve3Texture::set_curve_z);
ClassDB::bind_method(D_METHOD("get_curve_z"), &Curve3Texture::get_curve_z);
ClassDB::bind_method(D_METHOD("_update"), &Curve3Texture::_update);
ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "32,4096"), "set_width", "get_width");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "curve_x", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve_x", "get_curve_x");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "curve_y", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve_y", "get_curve_y");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "curve_z", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve_z", "get_curve_z");
}
void Curve3Texture::set_width(int p_width) {
ERR_FAIL_COND(p_width < 32 || p_width > 4096);
if (_width == p_width) {
return;
}
_width = p_width;
_update();
}
int Curve3Texture::get_width() const {
return _width;
}
void Curve3Texture::ensure_default_setup(float p_min, float p_max) {
if (_curve_x.is_null()) {
Ref<Curve> curve = Ref<Curve>(memnew(Curve));
curve->add_point(Vector2(0, 1));
curve->add_point(Vector2(1, 1));
curve->set_min_value(p_min);
curve->set_max_value(p_max);
set_curve_x(curve);
}
if (_curve_y.is_null()) {
Ref<Curve> curve = Ref<Curve>(memnew(Curve));
curve->add_point(Vector2(0, 1));
curve->add_point(Vector2(1, 1));
curve->set_min_value(p_min);
curve->set_max_value(p_max);
set_curve_y(curve);
}
if (_curve_z.is_null()) {
Ref<Curve> curve = Ref<Curve>(memnew(Curve));
curve->add_point(Vector2(0, 1));
curve->add_point(Vector2(1, 1));
curve->set_min_value(p_min);
curve->set_max_value(p_max);
set_curve_z(curve);
}
}
void Curve3Texture::set_curve_x(Ref<Curve> p_curve) {
if (_curve_x != p_curve) {
if (_curve_x.is_valid()) {
_curve_x->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update));
}
_curve_x = p_curve;
if (_curve_x.is_valid()) {
_curve_x->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update), varray(), CONNECT_REFERENCE_COUNTED);
}
_update();
}
}
void Curve3Texture::set_curve_y(Ref<Curve> p_curve) {
if (_curve_y != p_curve) {
if (_curve_y.is_valid()) {
_curve_y->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update));
}
_curve_y = p_curve;
if (_curve_y.is_valid()) {
_curve_y->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update), varray(), CONNECT_REFERENCE_COUNTED);
}
_update();
}
}
void Curve3Texture::set_curve_z(Ref<Curve> p_curve) {
if (_curve_z != p_curve) {
if (_curve_z.is_valid()) {
_curve_z->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update));
}
_curve_z = p_curve;
if (_curve_z.is_valid()) {
_curve_z->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Curve3Texture::_update), varray(), CONNECT_REFERENCE_COUNTED);
}
_update();
}
}
void Curve3Texture::_update() {
Vector<uint8_t> data;
data.resize(_width * sizeof(float) * 3);
// The array is locked in that scope
{
uint8_t *wd8 = data.ptrw();
float *wd = (float *)wd8;
if (_curve_x.is_valid()) {
Curve &curve_x = **_curve_x;
for (int i = 0; i < _width; ++i) {
float t = i / static_cast<float>(_width);
wd[i * 3 + 0] = curve_x.interpolate_baked(t);
}
} else {
for (int i = 0; i < _width; ++i) {
wd[i * 3 + 0] = 0;
}
}
if (_curve_y.is_valid()) {
Curve &curve_y = **_curve_y;
for (int i = 0; i < _width; ++i) {
float t = i / static_cast<float>(_width);
wd[i * 3 + 1] = curve_y.interpolate_baked(t);
}
} else {
for (int i = 0; i < _width; ++i) {
wd[i * 3 + 1] = 0;
}
}
if (_curve_z.is_valid()) {
Curve &curve_z = **_curve_z;
for (int i = 0; i < _width; ++i) {
float t = i / static_cast<float>(_width);
wd[i * 3 + 2] = curve_z.interpolate_baked(t);
}
} else {
for (int i = 0; i < _width; ++i) {
wd[i * 3 + 2] = 0;
}
}
}
Ref<Image> image = memnew(Image(_width, 1, false, Image::FORMAT_RGBF, data));
if (_texture.is_valid()) {
if (_current_width != _width) {
RID new_texture = RS::get_singleton()->texture_2d_create(image);
RS::get_singleton()->texture_replace(_texture, new_texture);
} else {
RS::get_singleton()->texture_2d_update(_texture, image);
}
} else {
_texture = RS::get_singleton()->texture_2d_create(image);
}
_current_width = _width;
emit_changed();
}
Ref<Curve> Curve3Texture::get_curve_x() const {
return _curve_x;
}
Ref<Curve> Curve3Texture::get_curve_y() const {
return _curve_y;
}
Ref<Curve> Curve3Texture::get_curve_z() const {
return _curve_z;
}
RID Curve3Texture::get_rid() const {
if (!_texture.is_valid()) {
_texture = RS::get_singleton()->texture_2d_placeholder_create();
}
return _texture;
}
Curve3Texture::Curve3Texture() {}
Curve3Texture::~Curve3Texture() {
if (_texture.is_valid()) {
RS::get_singleton()->free(_texture);
}
}
//////////////////
GradientTexture::GradientTexture() {
_queue_update();
}

64
scene/resources/texture.h
View file

@ -586,11 +586,19 @@ public:
class CurveTexture : public Texture2D {
GDCLASS(CurveTexture, Texture2D);
RES_BASE_EXTENSION("curvetex")
public:
enum TextureMode {
TEXTURE_MODE_RGB,
TEXTURE_MODE_RED,
};
private:
mutable RID _texture;
Ref<Curve> _curve;
int _width = 2048;
int _current_width = 0;
TextureMode texture_mode = TEXTURE_MODE_RGB;
TextureMode _current_texture_mode = TEXTURE_MODE_RGB;
void _update();
@ -601,6 +609,9 @@ public:
void set_width(int p_width);
int get_width() const override;
void set_texture_mode(TextureMode p_mode);
TextureMode get_texture_mode() const;
void ensure_default_setup(float p_min = 0, float p_max = 1);
void set_curve(Ref<Curve> p_curve);
@ -614,18 +625,49 @@ public:
CurveTexture();
~CurveTexture();
};
/*
enum CubeMapSide {
CUBEMAP_LEFT,
CUBEMAP_RIGHT,
CUBEMAP_BOTTOM,
CUBEMAP_TOP,
CUBEMAP_FRONT,
CUBEMAP_BACK,
};
*/
//VARIANT_ENUM_CAST( Texture::CubeMapSide );
VARIANT_ENUM_CAST(CurveTexture::TextureMode)
class Curve3Texture : public Texture2D {
GDCLASS(Curve3Texture, Texture2D);
RES_BASE_EXTENSION("curvetex")
private:
mutable RID _texture;
Ref<Curve> _curve_x;
Ref<Curve> _curve_y;
Ref<Curve> _curve_z;
int _width = 2048;
int _current_width = 0;
void _update();
protected:
static void _bind_methods();
public:
void set_width(int p_width);
int get_width() const override;
void ensure_default_setup(float p_min = 0, float p_max = 1);
void set_curve_x(Ref<Curve> p_curve);
Ref<Curve> get_curve_x() const;
void set_curve_y(Ref<Curve> p_curve);
Ref<Curve> get_curve_y() const;
void set_curve_z(Ref<Curve> p_curve);
Ref<Curve> get_curve_z() const;
virtual RID get_rid() const override;
virtual int get_height() const override { return 1; }
virtual bool has_alpha() const override { return false; }
Curve3Texture();
~Curve3Texture();
};
class GradientTexture : public Texture2D {
GDCLASS(GradientTexture, Texture2D);