Add beginnings of glTF parser and loader.

* chickadee/render/asset.scm: New file.
* chickadee/render/scene.scm: New file.
* data/shaders/pbr/pbr-frag.glsl: New file.
* data/shaders/pbr/pbr-vert.glsl: New file.

2 files changed, 14 insertions, 0 deletions

diff --git a/data/shaders/pbr/pbr-frag.glsl b/data/shaders/pbr/pbr-frag.glsl
new file mode 100644
index 0000000..9699da6
--- /dev/null
+++ b/data/shaders/pbr/pbr-frag.glsl
@@ -0,0 +1,5 @@
+#version 330
+
+void main (void) {
+  gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
+}
diff --git a/data/shaders/pbr/pbr-vert.glsl b/data/shaders/pbr/pbr-vert.glsl
new file mode 100644
index 0000000..d3d7eca
--- /dev/null
+++ b/data/shaders/pbr/pbr-vert.glsl
@@ -0,0 +1,9 @@
+#version 330
+
+in vec3 position;
+in vec3 normal;
+uniform mat4 mvp;
+
+void main(void) {
+    gl_Position = mvp * vec4(position.xyz, 1.0);
+}