1 files changed, 0 insertions, 137 deletions
diff --git a/sly/render/group.scm b/sly/render/group.scm
deleted file mode 100644
index 9cfc062..0000000
--- a/sly/render/group.scm
+++ /dev/null
@@ -1,137 +0,0 @@
-;;; Sly
-;;; Copyright (C) 2014 David Thompson <davet@gnu.org>
-;;;
-;;; Sly is free software: you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation, either version 3 of the License, or
-;;; (at your option) any later version.
-;;;
-;;; Sly is distributed in the hope that it will be useful, but WITHOUT
-;;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-;;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
-;;; License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see
-;;; <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-;;
-;; Hierarchy of renderable objects using a directed acyclic graph
-;; structure.
-;;
-;;; Code:
-
-(define-module (sly render group)
-  #:use-module (ice-9 match)
-  #:use-module (srfi srfi-9)
-  #:use-module (sly math transform)
-  #:use-module (sly render shader)
-  #:use-module (sly render texture)
-  #:use-module (sly render utils)
-  #:use-module (sly render camera)
-  #:use-module (sly render context)
-  #:use-module (sly render model)
-  #:export (make-group group
-            group?
-            group-transform group-visible? group-children
-            draw-group
-            group-move group-place group-show))
-
-;;;
-;;; Group
-;;;
-
-;; The composite object of the scene graph.  Groups have zero or more
-;; children, which may be groups or models.
-(define-record-type <group>
-  (%make-group transform visible? children)
-  group?
-  (transform group-transform)
-  (visible? group-visible?)
-  (children group-children))
-
-(define* (make-group children #:optional #:key (transform identity-transform)
-                     (visible? #t))
-  "Create a new group containing CHILDREN in which each child is
-rendered relative to TRANSFORM.  The VISIBLE? flag determines whether
-or not to render child nodes."
-  (%make-group transform visible? children))
-
-(define (%draw-group group parent-transform view context)
-  (match group
-    (($ <group> transform visible? children)
-     (when visible?
-       (with-temp-transform context world-transform
-         (transform*! world-transform transform parent-transform)
-         (for-each (lambda (child)
-                     (let ((draw (match child
-                                   ((? group? group) %draw-group)
-                                   ((? model? model) draw-model))))
-                       (draw child world-transform view context)))
-                   children))))))
-
-(define (set-transform-identity! t)
-  (let ((matrix (transform-matrix t)))
-    (array-set! matrix 1 0 0)
-    (array-set! matrix 0 0 1)
-    (array-set! matrix 0 0 2)
-    (array-set! matrix 0 0 3)
-    (array-set! matrix 0 1 0)
-    (array-set! matrix 1 1 1)
-    (array-set! matrix 0 1 2)
-    (array-set! matrix 0 1 3)
-    (array-set! matrix 0 2 0)
-    (array-set! matrix 0 2 1)
-    (array-set! matrix 1 2 2)
-    (array-set! matrix 0 2 3)
-    (array-set! matrix 0 3 0)
-    (array-set! matrix 0 3 1)
-    (array-set! matrix 0 3 2)
-    (array-set! matrix 1 3 3)))
-
-(define draw-group
-  (let ((context (make-render-context)))
-    (lambda* (group camera #:optional (context context))
-      "Draw the scene defined by GROUP as viewed by CAMERA, with the given
-render CONTEXT."
-      (with-render-context context
-        (with-temp-transform context view
-          (transform*! view
-                       (camera-location camera)
-                       (camera-projection camera))
-          (with-temp-transform context base-transform
-            (set-transform-identity! base-transform)
-            (apply-viewport (camera-viewport camera))
-            (%draw-group group base-transform view context)))))))
-
-;;;
-;;; Utility Procedures
-;;;
-
-(define (group . children)
-  "Create a new group containing the list of CHILDREN."
-  (make-group children))
-
-(define (group-move position group)
-  "Create a new group in which the list of CHILDREN are translated by
-the vector POSITION."
-  (match group
-    (($ <group> transform visible? children)
-     (%make-group (transform* transform (translate position))
-                  visible? children))))
-
-(define (group-place transform group)
-  "Create a new group in which the tranformation matrices of the
-CHILDREN are multiplied by TRANSFORM."
-  (match group
-    (($ <group> original-transform visible? children)
-     (%make-group (transform* original-transform transform)
-                  visible? children))))
-
-(define (group-show visible? group)
-  "Create a new group in which the visibility of the list of
-CHILDREN is determined by the VISIBLE? flag."
-  (match group
-    (($ <group> transform _ children)
-     (%make-group transform visible? children))))