1 files changed, 35 insertions, 0 deletions
diff --git a/src/mbgl/shaders/heatmap_texture.cpp b/src/mbgl/shaders/heatmap_texture.cpp
index 527caf4dca..c68cffa506 100644
--- a/src/mbgl/shaders/heatmap_texture.cpp
+++ b/src/mbgl/shaders/heatmap_texture.cpp
@@ -10,5 +10,40 @@ const char* heatmap_texture::name = "heatmap_texture";
 const char* heatmap_texture::vertexSource = source() + 13889;
 const char* heatmap_texture::fragmentSource = source() + 14105;
 
+// Uncompressed source of heatmap_texture.vertex.glsl:
+/*
+uniform mat4 u_matrix;
+uniform vec2 u_world;
+attribute vec2 a_pos;
+varying vec2 v_pos;
+
+void main() {
+    gl_Position = u_matrix * vec4(a_pos * u_world, 0, 1);
+
+    v_pos.x = a_pos.x;
+    v_pos.y = 1.0 - a_pos.y;
+}
+
+*/
+
+// Uncompressed source of heatmap_texture.fragment.glsl:
+/*
+uniform sampler2D u_image;
+uniform sampler2D u_color_ramp;
+uniform float u_opacity;
+varying vec2 v_pos;
+
+void main() {
+    float t = texture2D(u_image, v_pos).r;
+    vec4 color = texture2D(u_color_ramp, vec2(t, 0.5));
+    gl_FragColor = color * u_opacity;
+
+#ifdef OVERDRAW_INSPECTOR
+    gl_FragColor = vec4(0.0);
+#endif
+}
+
+*/
+
 } // namespace shaders
 } // namespace mbgl