diff -r 8e6a661c87db -r f70569c49c24 src/sprite.c
--- a/src/sprite.c	Tue Jun 24 20:21:38 2025 +0200
+++ b/src/sprite.c	Wed Jun 25 21:58:44 2025 +0200
@@ -34,12 +34,10 @@
 #include "ascension/shader.h"
 #include "ascension/constants.h"
 
-#include <GL/glew.h>
-
 
 typedef struct asc_sprite_shader_s {
     AscShaderProgram program;
-    GLint tex;
+    asc_uniform_loc tex;
 } AscSpriteShader;
 
 static AscShaderProgram *asc_sprite_shader_create(int rect) {
@@ -58,7 +56,7 @@
         asc_shader_free_codes(codes);
         return (AscShaderProgram*) shader;
     }
-    shader->tex = glGetUniformLocation(shader->program.gl_id, "tex");
+    shader->tex = asc_shader_get_uniform_loc(&shader->program, "tex");
     asc_shader_free_codes(codes);
 
     asc_error_catch_all_gl();
@@ -97,9 +95,9 @@
     // Activate shader
     // TODO: scene should know which shader we are going to activate s.t. it can pre-sort nodes
     const AscSpriteShader *shader =
-            sprite->texture->target == GL_TEXTURE_RECTANGLE
-                ? asc_shader_lookup_or_create(ASC_SHADER_SPRITE_RECT, asc_sprite_shader_create, 1)
-                : asc_shader_lookup_or_create(ASC_SHADER_SPRITE_UV, asc_sprite_shader_create, 0);
+        asc_texture_is_uv_normalized(sprite->texture)
+                ? asc_shader_lookup_or_create(ASC_SHADER_SPRITE_UV, asc_sprite_shader_create, 0)
+                : asc_shader_lookup_or_create(ASC_SHADER_SPRITE_RECT, asc_sprite_shader_create, 1);
     // TODO: how to remove the following cast?
     if (asc_shader_invalid((AscShaderProgram*)shader)) return;
     asc_shader_use(&shader->program, camera);