From 1866dd531dffc4084dfaf261591bc7ac2a376d67 Mon Sep 17 00:00:00 2001
From: Chuyan Zhang <me@zcy.moe>
Date: Fri, 4 Oct 2024 22:43:11 -0700
Subject: add basic gltf loader

---
 src/render_assets.h | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

(limited to 'src/render_assets.h')

diff --git a/src/render_assets.h b/src/render_assets.h
index 2dfff07..8c28ead 100644
--- a/src/render_assets.h
+++ b/src/render_assets.h
@@ -9,10 +9,14 @@ namespace iris {
 
 struct Mesh {
     std::string name;
-    std::vector<float> vertices;
-    std::vector<float> normals;
-    std::vector<float> texcoords;
+    std::vector<glm::vec3> vertices;
+    std::vector<glm::vec3> normals;
+    std::vector<glm::vec2> texcoords;
     std::vector<uint32_t> indices;
+
+    // AABB
+    glm::vec3 p_min;
+    glm::vec3 p_max;
 };
 
 struct Material {
@@ -23,6 +27,28 @@ struct Texture {
 };
 
 struct Camera {
+    enum struct Tag {
+        Perspective,
+        Orthographic,
+    } intrinsic_tag;
+    struct PerspectiveCamera {
+        float fovx;
+        float fovy;
+        float aspect;
+        float znear;
+        float zfar;
+    };
+
+    struct OrthographicCamera {
+        float xmag;
+        float ymag;
+        float znear;
+        float zfar;
+    };
+    union {
+        PerspectiveCamera perspective;
+        OrthographicCamera orthographic;
+    } intrinsic;
     glm::vec3 position;
     glm::vec3 direction;
     glm::vec3 up;
@@ -33,7 +59,7 @@ struct Scene {
     std::vector<Material> materials;
     std::vector<Texture> textures;
 
-    Camera camera_position;
+    Camera camera;
 };
 
 } // namespace iris
\ No newline at end of file
-- 
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