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+;;; Chickadee Game Toolkit
+;;; Copyright © 2023 David Thompson <dthompson2@worcester.edu>
+;;;
+;;; Licensed under the Apache License, Version 2.0 (the "License");
+;;; you may not use this file except in compliance with the License.
+;;; You may obtain a copy of the License at
+;;;
+;;;    http://www.apache.org/licenses/LICENSE-2.0
+;;;
+;;; Unless required by applicable law or agreed to in writing, software
+;;; distributed under the License is distributed on an "AS IS" BASIS,
+;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;; See the License for the specific language governing permissions and
+;;; limitations under the License.
+
+;;; Commentary
+;;
+;; Primitive rendering configuration.
+;;
+;;; Code:
+
+(define-module (chickadee graphics primitive)
+  #:use-module (srfi srfi-9)
+  #:export (make-primitive-mode
+            primitive-mode?
+            primitive-mode-topology
+            primitive-mode-front-face
+            primitive-mode-cull-face))
+
+(define-record-type <primitive-mode>
+  (%make-primitive-mode topology front-face cull-face)
+  primitive-mode?
+  (topology primitive-mode-topology)
+  (front-face primitive-mode-front-face)
+  (cull-face primitive-mode-cull-face))
+
+(define* (make-primitive-mode #:key
+                              (topology 'triangle-list)
+                              (front-face 'ccw)
+                              (cull-face 'back))
+  (%make-primitive-mode topology front-face cull-face))