Berry animation animation as opacity (#23852)

lib/libesp32/berry_animation/anim_examples/compiled/demo_pattern_fire_opacity.be

@@ -0,0 +1,76 @@
+# Generated Berry code from Animation DSL
+# Source: demo_pattern_fire_opacity.anim
+# 
+# This file was automatically generated by compile_all_examples.sh
+# Do not edit manually - changes will be overwritten
+
+import animation
+
+# Pattern fire.anim
+# Define fire palette from black to yellow
+# Auto-generated strip initialization (using Tasmota configuration)
+var engine = animation.init_strip()
+
+var fire_colors_ = bytes("FF800000" "FFFF0000" "FFFF4500" "FFFFFF00")
+var strip_len_ = animation.strip_length(engine)
+var fire_color_ = animation.rich_palette(engine)
+fire_color_.palette = fire_colors_
+var background_ = animation.solid(engine)
+background_.color = 0xFF000088
+background_.priority = 20
+var eye_mask_ = animation.beacon_animation(engine)
+eye_mask_.color = 0x00000000
+eye_mask_.back_color = 0xFFFFFFFF
+eye_mask_.pos = (def (engine)
+  var provider = animation.cosine_osc(engine)
+  provider.min_value = (-1)
+  provider.max_value = animation.create_closure_value(engine, def (self) return self.resolve(strip_len_) - 2 end)
+  provider.duration = 3000
+  return provider
+end)(engine)
+eye_mask_.beacon_size = 4  # small 3 pixels eye
+eye_mask_.slew_size = 2  # with 2 pixel shading around
+eye_mask_.priority = 5
+var fire_pattern_ = animation.palette_gradient_animation(engine)
+fire_pattern_.color_source = fire_color_
+fire_pattern_.spatial_period = animation.create_closure_value(engine, def (self) return self.resolve(strip_len_) / 4 end)
+fire_pattern_.opacity = eye_mask_
+engine.add_animation(background_)
+engine.add_animation(fire_pattern_)
+engine.start()
+
+
+#- Original DSL source:
+# Pattern fire.anim
+
+# Define fire palette from black to yellow
+palette fire_colors = [
+  0x800000    # Dark red
+  0xFF0000    # Red
+  0xFF4500    # Orange red
+  0xFFFF00    # Yellow
+]
+
+set strip_len = strip_length()
+color fire_color = rich_palette(palette=fire_colors)
+
+animation background = solid(color=0x000088, priority=20)
+run background
+
+animation eye_mask = beacon_animation(
+  color = transparent
+  back_color = white
+  pos = cosine_osc(min_value = -1, max_value = strip_len - 2, duration = 3s)
+  beacon_size = 4       # small 3 pixels eye
+  slew_size = 2         # with 2 pixel shading around
+  priority = 5
+)
+
+animation fire_pattern = palette_gradient_animation(
+  color_source = fire_color
+  spatial_period = strip_len / 4
+  opacity = eye_mask
+)
+
+run fire_pattern
+-#

lib/libesp32/berry_animation/anim_examples/compiled/pattern_fire.be

@@ -1,41 +0,0 @@
-# Generated Berry code from Animation DSL
-# Source: pattern_fire.anim
-# 
-# This file was automatically generated by compile_all_examples.sh
-# Do not edit manually - changes will be overwritten
-
-import animation
-
-# Pattern fire.anim
-# Define fire palette from black to yellow
-# Auto-generated strip initialization (using Tasmota configuration)
-var engine = animation.init_strip()
-
-var fire_colors_ = bytes("FF800000" "FFFF0000" "FFFF4500" "FFFFFF00")
-var strip_len_ = animation.strip_length(engine)
-var fire_color_ = animation.rich_palette(engine)
-fire_color_.palette = fire_colors_
-var fire_pattern_ = animation.palette_gradient_animation(engine)
-fire_pattern_.color_source = fire_color_
-fire_pattern_.spatial_period = animation.create_closure_value(engine, def (self) return self.resolve(strip_len_) / 2 end)
-engine.add_animation(fire_pattern_)
-engine.start()
-
-
-#- Original DSL source:
-# Pattern fire.anim
-
-# Define fire palette from black to yellow
-palette fire_colors = [
-  0x800000    # Dark red
-  0xFF0000    # Red
-  0xFF4500    # Orange red
-  0xFFFF00    # Yellow
-]
-
-set strip_len = strip_length()
-color fire_color = rich_palette(palette=fire_colors)
-animation fire_pattern = palette_gradient_animation(color_source=fire_color, spatial_period=strip_len/2)
-
-run fire_pattern
--#

lib/libesp32/berry_animation/anim_examples/demo_pattern_fire_opacity.anim

@@ -0,0 +1,32 @@
+# Pattern fire.anim
+
+# Define fire palette from black to yellow
+palette fire_colors = [
+  0x800000    # Dark red
+  0xFF0000    # Red
+  0xFF4500    # Orange red
+  0xFFFF00    # Yellow
+]
+
+set strip_len = strip_length()
+color fire_color = rich_palette(palette=fire_colors)
+
+animation background = solid(color=0x000088, priority=20)
+run background
+
+animation eye_mask = beacon_animation(
+  color = transparent
+  back_color = white
+  pos = cosine_osc(min_value = -1, max_value = strip_len - 2, duration = 3s)
+  beacon_size = 4       # small 3 pixels eye
+  slew_size = 2         # with 2 pixel shading around
+  priority = 5
+)
+
+animation fire_pattern = palette_gradient_animation(
+  color_source = fire_color
+  spatial_period = strip_len / 4
+  opacity = eye_mask
+)
+
+run fire_pattern

lib/libesp32/berry_animation/anim_examples/pattern_fire.anim

@@ -1,15 +0,0 @@
-# Pattern fire.anim
-
-# Define fire palette from black to yellow
-palette fire_colors = [
-  0x800000    # Dark red
-  0xFF0000    # Red
-  0xFF4500    # Orange red
-  0xFFFF00    # Yellow
-]
-
-set strip_len = strip_length()
-color fire_color = rich_palette(palette=fire_colors)
-animation fire_pattern = palette_gradient_animation(color_source=fire_color, spatial_period=strip_len/2)
-
-run fire_pattern

lib/libesp32/berry_animation/src/core/animation_base.be

@@ -152,19 +152,25 @@ class Animation : animation.parameterized_object
     
     # Access parameters via virtual members (auto-resolves ValueProviders)
     var current_color = self.color
-    var current_opacity = self.opacity
     
     # Fill the entire frame with the current color if not transparent
     if (current_color != 0x00000000)
       frame.fill_pixels(current_color)
     end
     
-    # Handle opacity - can be number, frame buffer, or animation
-    self._apply_opacity(frame, current_opacity, time_ms)
-    
     return true
   end
   
+  # Post-processing of rendering
+  #
+  # @param frame: FrameBuffer - The frame buffer to render to
+  # @param time_ms: int - Current time in milliseconds
+  def post_render(frame, time_ms)
+    # Handle opacity - can be number, frame buffer, or animation
+    var current_opacity = self.opacity
+    self._apply_opacity(frame, current_opacity, time_ms)
+  end
+
   # Apply opacity to frame buffer - handles numbers and animations
   #
   # @param frame: FrameBuffer - The frame buffer to apply opacity to

lib/libesp32/berry_animation/src/core/animation_engine.be

@@ -256,6 +256,7 @@ class AnimationEngine
       var rendered = anim.render(self.temp_buffer, time_ms)
       
       if rendered
+        anim.post_render(self.temp_buffer, time_ms)
         # Blend temp buffer into main buffer
         self.frame_buffer.blend_pixels(self.temp_buffer)
       end