test equirect timelapse

src/canvas_layer.cpp

@@ -49,7 +49,7 @@ TextureCube Layer::gen_cube()
     return ret;
 }
 
-Texture2D Layer::gen_equirect()
+Texture2D Layer::gen_equirect(glm::ivec2 size /*= { 0, 0 }*/)
 {
     Texture2D ret;
     
@@ -60,10 +60,13 @@ Texture2D Layer::gen_equirect()
 
         TextureCube cube;
         RTT latlong;
+        
+        if (size.x == 0 || size.y == 0)
+            size = { w, h };
 
         cube = gen_cube();
-        latlong.create(w * 4, h * 2);
-        ret.create(w * 4, h * 2);
+        latlong.create(size.x * 4, size.y * 2);
+        ret.create(size.x * 4, size.y * 2);
 
         glDisable(GL_BLEND);