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Diffstat (limited to 'chickadee/render/scene.scm')
| -rw-r--r-- | chickadee/render/scene.scm | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/chickadee/render/scene.scm b/chickadee/render/scene.scm deleted file mode 100644 index 818957e..0000000 --- a/chickadee/render/scene.scm +++ /dev/null @@ -1,252 +0,0 @@ -;;; Chickadee Game Toolkit -;;; Copyright © 2017 David Thompson <davet@gnu.org> -;;; -;;; Chickadee 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. -;;; -;;; Chickadee 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: -;; -;; 3D scene graph with physically based rendering. -;; -;;; Code: - -(define-module (chickadee render scene) - #:use-module (chickadee config) - #:use-module (chickadee math matrix) - #:use-module (chickadee math quaternion) - #:use-module (chickadee math vector) - #:use-module (chickadee render) - #:use-module (chickadee render color) - #:use-module (chickadee render buffer) - #:use-module (chickadee render texture) - #:use-module (chickadee render shader) - #:use-module (srfi srfi-9) - #:use-module (srfi srfi-9 gnu) - #:export (make-material - default-material - material? - material-name - material-base-color-factor - material-base-color-texture - material-metallic-factor - material-roughness-factor - material-metallic-roughness-texture - material-normal-factor - material-normal-texture - material-occlusion-facgor - material-occlusion-texture - material-emissive-factor - material-emissive-texture - material-alpha-mode - material-alpha-cutoff - material-double-sided? - pbr-shader - make-primitive - primitive? - primitive-vertex-array - primitive-material - primitive-targets - make-mesh - mesh? - mesh-name - mesh-primitives - mesh-weights - make-scene-node - scene-node? - scene-node-name - scene-node-children - scene-node-camera - scene-node-skin - scene-node-matrix - scene-node-mesh - scene-node-rotation - scene-node-scale - scene-node-translation - scene-node-weights - make-scene - scene? - scene-name - scene-nodes - draw-scene)) - -(define-record-type <material> - (%make-material name base-color-factor base-color-texture - metallic-factor roughness-factor metallic-roughness-texture - normal-factor normal-texture - occlusion-factor occlusion-texture - emissive-texture emissive-factor - alpha-mode alpha-cutoff - double-sided?) - material? - (name material-name) - (base-color-factor material-base-color-factor) - (base-color-texture material-base-color-texture) - (metallic-factor material-metallic-factor) - (roughness-factor material-roughness-factor) - (metallic-roughness-texture material-metallic-roughness-texture) - (normal-factor material-normal-factor) - (normal-texture material-normal-texture) - (occlusion-factor material-occlusion-factor) - (occlusion-texture material-occlusion-texture) - (emissive-factor material-emissive-factor) - (emissive-texture material-emissive-texture) - (alpha-mode material-alpha-mode) - (alpha-cutoff material-alpha-cutoff) - (double-sided? material-double-sided?)) - -(define* (make-material #:key - (name "anonymous") - (base-color-factor #v(1.0 1.0 1.0)) - (base-color-texture null-texture) - (metallic-factor 1.0) - (roughness-factor 1.0) - (metallic-roughness-texture null-texture) - (normal-factor #v(1.0 1.0 1.0)) - (normal-texture null-texture) - (occlusion-factor #v(1.0 1.0 1.0)) - (occlusion-texture null-texture) - (emissive-factor #v(1.0 1.0 1.0)) - (emissive-texture null-texture) - (alpha-mode 'opaque) - (alpha-cutoff 0.5) - double-sided?) - (%make-material name base-color-factor base-color-texture - metallic-factor roughness-factor metallic-roughness-texture - normal-factor normal-texture - occlusion-factor occlusion-texture - emissive-texture emissive-factor - alpha-mode alpha-cutoff double-sided?)) - -(define default-material (make-material)) - -(define pbr-shader - (let ((shader - (delay - (load-shader (scope-datadir "shaders/pbr/pbr-vert.glsl") - (scope-datadir "shaders/pbr/pbr-frag.glsl"))))) - (lambda () - (force shader)))) - -(define-record-type <primitive> - (%make-primitive vertex-array material targets matrix) - primitive? - (vertex-array primitive-vertex-array) - (material primitive-material) - (targets primitive-targets) - (matrix primitive-matrix)) - -(define (display-primitive primitive port) - (format port "#<primitive material: ~s targets: ~s>" - (primitive-material primitive) - (primitive-targets primitive))) - -(set-record-type-printer! <primitive> display-primitive) - -(define* (make-primitive #:key - vertex-array - (material default-material) - targets) - (%make-primitive vertex-array material targets (make-identity-matrix4))) - -(define-record-type <mesh> - (%make-mesh name primitives weights) - mesh? - (name mesh-name) - (primitives mesh-primitives) - (weights mesh-weights)) - -(define (display-mesh mesh port) - (format port "#<mesh name: ~s>" (mesh-name mesh))) - -(set-record-type-printer! <mesh> display-mesh) - -(define* (make-mesh #:key - (name "anonymous") - primitives - weights) - (%make-mesh name primitives weights)) - -(define-record-type <scene-node> - (%make-scene-node name children camera skin matrix world-matrix - mesh rotation scale translation weights) - node? - (name scene-node-name) - (children scene-node-children) - (camera scene-node-camera) - (skin scene-node-skin) - (matrix scene-node-matrix) - (world-matrix scene-node-world-matrix) - (mesh scene-node-mesh) - (rotation scene-node-rotation) - (scale scene-node-scale) - (translation scene-node-translation) - (weights scene-node-weights)) - -(define (display-scene-node scene port) - (format port "#<scene-node name: ~s>" (scene-node-name scene))) - -(set-record-type-printer! <scene-node> display-scene-node) - -(define* (make-scene-node #:key - (name "anonymous") - (children #()) - camera - skin - (matrix (make-identity-matrix4)) - mesh - (rotation (quaternion 0.0 0.0 0.0 1.0)) - (scale (vec3 1.0 1.0 1.0)) - (translation (vec3 0.0 0.0 0.0)) - weights) - (%make-scene-node name children camera skin matrix (make-identity-matrix4) - mesh rotation scale translation weights)) - -(define-record-type <scene> - (%make-scene name nodes) - scene? - (name scene-name) - (nodes scene-nodes)) - -(define* (make-scene #:key (name "anonymous") (nodes '())) - (%make-scene name nodes)) - -(define (draw-primitive primitive matrix) - ;; TODO: Actually use physically based rendering. - (let ((mvp (primitive-matrix primitive)) - (material (primitive-material primitive))) - (matrix4-mult! mvp matrix (current-projection)) - (with-texture 0 (material-base-color-texture material) - (gpu-apply (pbr-shader) - (primitive-vertex-array primitive) - #:mvp mvp - #:base_color_factor (material-base-color-factor material))))) - -(define (draw-mesh mesh matrix) - (for-each (lambda (primitive) - (draw-primitive primitive matrix)) - (mesh-primitives mesh))) - -(define (draw-scene-node node matrix) - (let ((world-matrix (scene-node-world-matrix node))) - (matrix4-mult! world-matrix matrix (scene-node-matrix node)) - (when (scene-node-mesh node) - (draw-mesh (scene-node-mesh node) world-matrix)) - (for-each (lambda (node) - (draw-scene-node node world-matrix)) - (scene-node-children node)))) - -(define (draw-scene scene) - (for-each (lambda (scene) - (draw-scene-node scene (scene-node-world-matrix scene))) - (scene-nodes scene))) |