- matrix_mode(PROJECTION);
- push_matrix();
- load_identity();
- ortho(-radius, radius, -radius, radius, -radius, radius);
- matrix_mode(MODELVIEW);
- push_matrix();
- load_matrix(matrix);
-
- Bind _bind_fbo(fbo);
- glViewport(0, 0, size, size);
- glClear(GL_DEPTH_BUFFER_BIT);
- scene.render();
-
- matrix_mode(PROJECTION);
- pop_matrix();
- matrix_mode(MODELVIEW);
- pop_matrix();
+ MatrixStack::Push push_mv(MatrixStack::modelview());
+ MatrixStack::Push push_proj(MatrixStack::projection());
+
+ MatrixStack::projection() = Matrix::ortho(-radius, radius, -radius, radius, -radius, radius);
+ MatrixStack::modelview() = matrix;
+
+ Bind bind_fbo(fbo, true);
+ fbo.clear(DEPTH_BUFFER_BIT);
+ scene.render("shadow");