1 files changed, 76 insertions, 0 deletions
diff --git a/examples/gltf_loading/ex_gltf_loading.c b/examples/gltf_loading/ex_gltf_loading.c
index e69de29..0c47fec 100644
--- a/examples/gltf_loading/ex_gltf_loading.c
+++ b/examples/gltf_loading/ex_gltf_loading.c
@@ -0,0 +1,76 @@
+#include <glfw3.h>
+
+#include "camera.h"
+#include "core.h"
+#include "loaders.h"
+#include "maths.h"
+#include "maths_types.h"
+#include "render.h"
+#include "render_types.h"
+
+const vec3 pointlight_positions[4] = {
+  { 0.7, 0.2, 2.0 },
+  { 2.3, -3.3, -4.0 },
+  { -4.0, 2.0, -12.0 },
+  { 0.0, 0.0, -3.0 },
+};
+point_light point_lights[4];
+
+int main() {
+  double currentFrame = glfwGetTime();
+  double lastFrame = currentFrame;
+  double deltaTime;
+
+  core* core = core_bringup();
+
+  model_handle helmet_handle =
+      model_load_gltf(core, "assets/models/gltf/DamagedHelmet/glTF/DamagedHelmet.gltf", false);
+  model* helmet = &core->models->data[helmet_handle.raw];
+  model_upload_meshes(&core->renderer, helmet);
+
+  vec3 camera_pos = vec3(5., 0., 0.);
+  vec3 camera_front = vec3_normalise(vec3_negate(camera_pos));
+  camera cam = camera_create(camera_pos, camera_front, VEC3_NEG_Z, deg_to_rad(45.0));
+  // 4. create lights
+
+  // directional (sun) light setup
+  directional_light dir_light = { .direction = (vec3){ -0.2, -1.0, -0.3 },
+                                  .ambient = (vec3){ 0.2, 0.2, 0.2 },
+                                  .diffuse = (vec3){ 0.5, 0.5, 0.5 },
+                                  .specular = (vec3){ 1.0, 1.0, 1.0 } };
+  // point lights setup
+  for (int i = 0; i < 4; i++) {
+    point_lights[i].position = pointlight_positions[i];
+    point_lights[i].ambient = (vec3){ 0.05, 0.05, 0.05 };
+    point_lights[i].diffuse = (vec3){ 0.8, 0.8, 0.8 };
+    point_lights[i].specular = (vec3){ 1.0, 1.0, 1.0 };
+    point_lights[i].constant = 1.0;
+    point_lights[i].linear = 0.09;
+    point_lights[i].quadratic = 0.032;
+  }
+
+  scene our_scene = { .dir_light = dir_light, .n_point_lights = 4 };
+  memcpy(&our_scene.point_lights, &point_lights, sizeof(point_light[4]));
+
+  while (!glfwWindowShouldClose(core->renderer.window)) {
+    currentFrame = glfwGetTime();
+    deltaTime = currentFrame - lastFrame;
+    lastFrame = currentFrame;
+    input_update(&core->input);
+
+    render_frame_begin(&core->renderer);
+
+    // Draw the model
+    static f32 angle = 0.0;
+    static f32 rot_speed = 0.5;
+    quat rot = quat_from_axis_angle(VEC3_Z, fmod(angle, TAU), true);
+    angle += (rot_speed * deltaTime);
+    transform model_tf = transform_create(vec3(0.0, 0.1, -0.1), rot, 1.8);
+    mat4 model = transform_to_mat(&model_tf);
+    draw_model(&core->renderer, &cam, helmet, &model, &our_scene);
+
+    render_frame_end(&core->renderer);
+  }
+
+  return 0;
+}