update cmake

shaders/rotate.fs

@@ -0,0 +1,29 @@
+#version 330
+
+in vec2 fragTexCoord;
+
+uniform sampler2D texture0;
+uniform vec2 resolution;
+uniform float angle;
+
+out vec4 rotOut;
+
+void main()
+{
+    vec2 uv_space = fragTexCoord - 0.5;
+    uv_space.x *= resolution.x / resolution.y;
+
+    float i = cos(-angle);
+    float j = sin(-angle);
+
+    vec2 rot = vec2((uv_space.x * i) - (uv_space.y * j), (uv_space.x * j) + (uv_space.y * i));
+
+    rot.x /= resolution.x / resolution.y;
+    rot += 0.5;
+
+    if (rot.x < 0.0 || rot.x > 1.0 || rot.y < 0.0 || rot.y > 1.0) {
+        rotOut = vec4(0.0, 0.0, 0.0, 1.0);
+    } else {
+        rotOut = texture(texture0, rot);
+    }
+}