diff -r 6c438be1a1fd -r df81d493716e src/shader.c
--- a/src/shader.c	Thu Mar 21 20:48:18 2024 +0100
+++ b/src/shader.c	Thu Mar 21 22:23:00 2024 +0100
@@ -139,6 +139,7 @@
 void asc_shader_initialize_predefined(void) {
     ASC_SHADER_SPRITE.base = asc_shader_compile_link_discard("shader/sprite_vtx.glsl", "shader/sprite_frag.glsl");
     ASC_SHADER_SPRITE.surface = glGetUniformLocation(ASC_SHADER_SPRITE.base.id, "surface");
+    ASC_SHADER_SPRITE.depth = glGetUniformLocation(ASC_SHADER_SPRITE.base.id, "depth");
 }
 
 void asc_shader_destroy_predefined(void) {