point lights for pbr example

1 files changed, 23 insertions, 4 deletions

diff --git a/examples/pbr_params/ex_pbr_params.c b/examples/pbr_params/ex_pbr_params.c
index 583fd12..0ac784d 100644
--- a/examples/pbr_params/ex_pbr_params.c
+++ b/examples/pbr_params/ex_pbr_params.c
@@ -15,19 +15,34 @@
 
 extern core g_core;
 
+const vec3 pointlight_positions[4] = {
+  { 10.0, 10.0, 10.0 },
+  { -10.0, 10.0, 10.0 },
+  { 10.0, -10.0, 10.0 },
+  { -10.0, -10.0, 10.0 },
+};
+pbr_point_light point_lights[4];
+
 // Lets define some constant PBR parameters here to test on one sphere with first
 const rgba ALBEDO = RED_700;
 const f32 metallic = 0.0;
 const f32 roughness = 0.8;
 const f32 ao = 0.2;
 
-const pbr_params_material_uniforms pbr_params = {.albedo = (vec3){0.5,0.5,0.5}, .metallic = metallic, .roughness = roughness, .ao = ao};
+const pbr_params_material_uniforms pbr_params = {
+  .albedo = (vec3){ 0.5, 0.5, 0.5 }, .metallic = metallic, .roughness = roughness, .ao = ao
+};
 
 int main() {
   core_bringup();
 
   arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024);
 
+  for (int i = 0; i < 4; i++) {
+    point_lights[i].pos = pointlight_positions[i];
+    point_lights[i].color = vec3(1, 1, 1);
+  }
+
   vec3 camera_pos = vec3(3.0, 3., 3.);
   vec3 camera_front = vec3_normalise(vec3_negate(camera_pos));
   camera cam = camera_create(camera_pos, camera_front, VEC3_Y, deg_to_rad(45.0));
@@ -61,7 +76,7 @@ int main() {
             .code = fragment_shader.contents,
             .is_spirv = false },
     .renderpass = renderpass,
-    .wireframe = false,
+    .wireframe = true,
     .depth_test = false
   };
   gpu_pipeline* pbr_pipeline = gpu_graphics_pipeline_create(pipeline_description);
@@ -90,9 +105,13 @@ int main() {
     camera_view_projection(&cam, 1000, 1000, &view, &proj);
 
     // Feed shader data
-    pbr_bind_data.mvp_matrices = (mvp_matrix_uniforms){.model = model_affine, .view = view, .projection = proj};
+    pbr_bind_data.mvp_matrices =
+        (mvp_matrix_uniforms){ .model = model_affine, .view = view, .projection = proj };
     pbr_bind_data.material = pbr_params;
-    pbr_bind_data.lights = (pbr_params_light_uniforms){.viewPos = cam.position /* TODO: point lights*/};
+    pbr_bind_data.lights =
+        (pbr_params_light_uniforms){ .viewPos = cam.position,
+                                     .pointLights = { point_lights[0], point_lights[1],
+                                                      point_lights[2], point_lights[3] } };
     pbr_uniforms.data = &pbr_bind_data;
     encode_bind_shader_data(enc, 0, &pbr_uniforms);