Organisation

shaders/frag.frag

@@ -3,10 +3,12 @@ out vec4 FragColor;
 
 in vec3 ourColor;
 in vec2 TexCoord;
+in vec4 position;
 
-uniform sampler2D ourTexture;
+uniform sampler2D texture1;
+uniform sampler2D texture2;
 
 void main()
 {
-        FragColor = texture(ourTexture, TexCoord) * vec4(ourColor, 1.0f);
+        FragColor = mix(texture(texture1, TexCoord), texture(texture2, vec2(TexCoord.x, -TexCoord.y)), position.x * position.y);
 }

shaders/vert.vert

@@ -5,10 +5,12 @@ layout (location = 2) in vec2 aTexCoord;
 
 out vec3 ourColor;
 out vec2 TexCoord;
+out vec4 position;
 
 void main()
 {
     gl_Position = vec4(aPos, 1.0);
     ourColor = aColor;
     TexCoord = aTexCoord;
+    position = gl_Position;
 }