blade: cull mask support for sprites

Dzmitry Malyshau created 2 years ago

Change summary

Cargo.lock                                  | 3 +--
crates/gpui/Cargo.toml                      | 4 ++--
crates/gpui/src/platform/linux/shaders.wgsl | 9 +++++++++
3 files changed, 12 insertions(+), 4 deletions(-)

Detailed changes

Cargo.lock

@@ -937,7 +937,6 @@ dependencies = [
 [[package]]
 name = "blade-graphics"
 version = "0.3.0"
-source = "git+https://github.com/kvark/blade?rev=62eb18d312f720a5aac8f508fe223146a24fc7f0#62eb18d312f720a5aac8f508fe223146a24fc7f0"
 dependencies = [
  "ash",
  "ash-window",
@@ -967,7 +966,7 @@ dependencies = [
 [[package]]
 name = "blade-macros"
 version = "0.2.1"
-source = "git+https://github.com/kvark/blade?rev=62eb18d312f720a5aac8f508fe223146a24fc7f0#62eb18d312f720a5aac8f508fe223146a24fc7f0"
+source = "git+https://github.com/kvark/blade?rev=f35bc605154e210ab6190291235889b6ddad73f1#f35bc605154e210ab6190291235889b6ddad73f1"
 dependencies = [
  "proc-macro2",
  "quote",

crates/gpui/Cargo.toml

@@ -99,6 +99,6 @@ flume = "0.11"
 xcb = { version = "1.3", features = ["as-raw-xcb-connection"] }
 as-raw-xcb-connection = "1"
 #TODO: use these on all platforms
-blade-graphics = { git = "https://github.com/kvark/blade", rev = "62eb18d312f720a5aac8f508fe223146a24fc7f0" }
-blade-macros = { git = "https://github.com/kvark/blade", rev = "62eb18d312f720a5aac8f508fe223146a24fc7f0" }
+blade-graphics = { git = "https://github.com/kvark/blade", rev = "f35bc605154e210ab6190291235889b6ddad73f1" }
+blade-macros = { git = "https://github.com/kvark/blade", rev = "f35bc605154e210ab6190291235889b6ddad73f1" }
 bytemuck = "1"

crates/gpui/src/platform/linux/shaders.wgsl

@@ -504,6 +504,10 @@ fn vs_mono_sprite(@builtin(vertex_index) vertex_id: u32, @builtin(instance_index
 @fragment
 fn fs_mono_sprite(input: MonoSpriteVarying) -> @location(0) vec4<f32> {
     let sample = textureSample(t_sprite, s_sprite, input.tile_position).r;
+    // Alpha clip after using the derivatives.
+    if (any(input.clip_distances < vec4<f32>(0.0))) {
+        return vec4<f32>(0.0);
+    }
     return input.color * vec4<f32>(1.0, 1.0, 1.0, sample);
 }
 
@@ -545,6 +549,11 @@ fn vs_poly_sprite(@builtin(vertex_index) vertex_id: u32, @builtin(instance_index
 @fragment
 fn fs_poly_sprite(input: PolySpriteVarying) -> @location(0) vec4<f32> {
     let sample = textureSample(t_sprite, s_sprite, input.tile_position);
+    // Alpha clip after using the derivatives.
+    if (any(input.clip_distances < vec4<f32>(0.0))) {
+        return vec4<f32>(0.0);
+    }
+
     let sprite = b_poly_sprites[input.sprite_id];
     let distance = quad_sdf(input.position.xy, sprite.bounds, sprite.corner_radii);