diff options
| -rw-r--r-- | doc/classes/GradientTexture.xml | 3 | ||||
| -rw-r--r-- | scene/resources/texture.cpp | 71 | ||||
| -rw-r--r-- | scene/resources/texture.h | 4 |
3 files changed, 61 insertions, 17 deletions
diff --git a/doc/classes/GradientTexture.xml b/doc/classes/GradientTexture.xml index 242a78b2e4..44da042dd4 100644 --- a/doc/classes/GradientTexture.xml +++ b/doc/classes/GradientTexture.xml @@ -14,6 +14,9 @@ <member name="gradient" type="Gradient" setter="set_gradient" getter="get_gradient"> The [Gradient] that will be used to fill the texture. </member> + <member name="use_hdr" type="bool" setter="set_use_hdr" getter="is_using_hdr" default="false"> + If [code]true[/code], the generated texture will support high dynamic range ([constant Image.FORMAT_RGBAF] format). This allows for glow effects to work if [member Environment.glow_enabled] is [code]true[/code]. If [code]false[/code], the generated texture will use low dynamic range; overbright colors will be clamped ([constant Image.FORMAT_RGBA8] format). + </member> <member name="width" type="int" setter="set_width" getter="get_width" default="2048"> The number of color samples that will be obtained from the [Gradient]. </member> diff --git a/scene/resources/texture.cpp b/scene/resources/texture.cpp index 4ad5f2a506..063a13efc0 100644 --- a/scene/resources/texture.cpp +++ b/scene/resources/texture.cpp @@ -1758,11 +1758,16 @@ void GradientTexture::_bind_methods() { ClassDB::bind_method(D_METHOD("get_gradient"), &GradientTexture::get_gradient); ClassDB::bind_method(D_METHOD("set_width", "width"), &GradientTexture::set_width); + // The `get_width()` method is already exposed by the parent class Texture2D. + + ClassDB::bind_method(D_METHOD("set_use_hdr", "enabled"), &GradientTexture::set_use_hdr); + ClassDB::bind_method(D_METHOD("is_using_hdr"), &GradientTexture::is_using_hdr); ClassDB::bind_method(D_METHOD("_update"), &GradientTexture::_update); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "gradient", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_gradient", "get_gradient"); ADD_PROPERTY(PropertyInfo(Variant::INT, "width", PROPERTY_HINT_RANGE, "1,4096"), "set_width", "get_width"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_hdr"), "set_use_hdr", "is_using_hdr"); } void GradientTexture::set_gradient(Ref<Gradient> p_gradient) { @@ -1800,30 +1805,49 @@ void GradientTexture::_update() { return; } - Vector<uint8_t> data; - data.resize(width * 4); - { - uint8_t *wd8 = data.ptrw(); + if (use_hdr) { + // High dynamic range. + Ref<Image> image = memnew(Image(width, 1, false, Image::FORMAT_RGBAF)); Gradient &g = **gradient; - + // `create()` isn't available for non-uint8_t data, so fill in the data manually. for (int i = 0; i < width; i++) { float ofs = float(i) / (width - 1); - Color color = g.get_color_at_offset(ofs); + image->set_pixel(i, 0, g.get_color_at_offset(ofs)); + } - wd8[i * 4 + 0] = uint8_t(CLAMP(color.r * 255.0, 0, 255)); - wd8[i * 4 + 1] = uint8_t(CLAMP(color.g * 255.0, 0, 255)); - wd8[i * 4 + 2] = uint8_t(CLAMP(color.b * 255.0, 0, 255)); - wd8[i * 4 + 3] = uint8_t(CLAMP(color.a * 255.0, 0, 255)); + if (texture.is_valid()) { + RID new_texture = RS::get_singleton()->texture_2d_create(image); + RS::get_singleton()->texture_replace(texture, new_texture); + } else { + texture = RS::get_singleton()->texture_2d_create(image); + } + } else { + // Low dynamic range. "Overbright" colors will be clamped. + Vector<uint8_t> data; + data.resize(width * 4); + { + uint8_t *wd8 = data.ptrw(); + Gradient &g = **gradient; + + for (int i = 0; i < width; i++) { + float ofs = float(i) / (width - 1); + Color color = g.get_color_at_offset(ofs); + + wd8[i * 4 + 0] = uint8_t(CLAMP(color.r * 255.0, 0, 255)); + wd8[i * 4 + 1] = uint8_t(CLAMP(color.g * 255.0, 0, 255)); + wd8[i * 4 + 2] = uint8_t(CLAMP(color.b * 255.0, 0, 255)); + wd8[i * 4 + 3] = uint8_t(CLAMP(color.a * 255.0, 0, 255)); + } } - } - Ref<Image> image = memnew(Image(width, 1, false, Image::FORMAT_RGBA8, data)); + Ref<Image> image = memnew(Image(width, 1, false, Image::FORMAT_RGBA8, data)); - if (texture.is_valid()) { - RID new_texture = RS::get_singleton()->texture_2d_create(image); - RS::get_singleton()->texture_replace(texture, new_texture); - } else { - texture = RS::get_singleton()->texture_2d_create(image); + if (texture.is_valid()) { + RID new_texture = RS::get_singleton()->texture_2d_create(image); + RS::get_singleton()->texture_replace(texture, new_texture); + } else { + texture = RS::get_singleton()->texture_2d_create(image); + } } emit_changed(); @@ -1839,6 +1863,19 @@ int GradientTexture::get_width() const { return width; } +void GradientTexture::set_use_hdr(bool p_enabled) { + if (p_enabled == use_hdr) { + return; + } + + use_hdr = p_enabled; + _queue_update(); +} + +bool GradientTexture::is_using_hdr() const { + return use_hdr; +} + Ref<Image> GradientTexture::get_image() const { if (!texture.is_valid()) { return Ref<Image>(); diff --git a/scene/resources/texture.h b/scene/resources/texture.h index 2e97c2deb1..f6b991c335 100644 --- a/scene/resources/texture.h +++ b/scene/resources/texture.h @@ -686,6 +686,7 @@ private: bool update_pending = false; RID texture; int width = 2048; + bool use_hdr = false; void _queue_update(); void _update(); @@ -700,6 +701,9 @@ public: void set_width(int p_width); int get_width() const override; + void set_use_hdr(bool p_enabled); + bool is_using_hdr() const; + virtual RID get_rid() const override { return texture; } virtual int get_height() const override { return 1; } virtual bool has_alpha() const override { return true; } |