From 6d4b56258b89ba12bec5e329b81de62284c47ce1 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Thu, 2 Jan 2025 14:55:23 +1100
Subject: model instance system

---
 c2.cpp | 62 ++++++++++++++++++++++++++++++++------------------------------
 1 file changed, 32 insertions(+), 30 deletions(-)

(limited to 'c2.cpp')

diff --git a/c2.cpp b/c2.cpp
index 73bbbb6..39a57c4 100644
--- a/c2.cpp
+++ b/c2.cpp
@@ -110,7 +110,9 @@ extern "C" int entrypoint() {
 	Texture* texture;
 	Texture* texture2;
 	Texture_Id default_texture;
-	Model* monkey;
+	Model_Instance* monkey, * monkey2;
+	Model_Scene scene;
+	Camera camera;
 	Buffer_Id vbo, cbuf;
 	Sampler_Id clamped_linear;
 	C2* app = App::create<C2>("c2");
@@ -140,7 +142,6 @@ extern "C" int entrypoint() {
 	mat_loader.init(&assets, default_texture);
 	register_asset_loader("MODL", &model_loader);
 	register_asset_loader("MTRL", &mat_loader);
-	monkey = (Model*)assets.load("monkey.mdl");
 	app->dev = dev;
 	shader = (Shader*)assets.load("triangle.csh");
 	ui_shader = (Shader*)assets.load("ui.csh");
@@ -166,6 +167,20 @@ extern "C" int entrypoint() {
 	vbo = upload_verts(dev);
 	ui->layout(app->w, app->h);
 	auto fps_label = ui->create_element<UI::Label>(ui->root, "");
+	scene.init(app->arena, 32, clamped_linear);
+	monkey = scene.instantiate(
+		dev,
+		(Model*)assets.load("monkey.mdl")
+	);
+	monkey2 = scene.instantiate(
+		dev,
+		(Model*)assets.load("monkey.mdl")
+	);
+	camera.init(
+		90.0f,
+		v3f(0.0f, 0.0f, 1.0f),
+		v3f(0.0f, 0.0f, 0.0f)
+	);
 	while (app->running) {
 		Arena frame_arena;
 		init_arena(&frame_arena, per_frame, per_frame_memory_size);
@@ -239,13 +254,7 @@ extern "C" int entrypoint() {
 		Render_Pass& pass2 = pb.build_rp();
 
 		Texture& bb = dev->get_texture(dev->get_backbuffer());
-		m4f projection = m4f::pers(
-			70.0f,
-			(float)bb.w / (float)bb.h,
-			0.01f,
-			100.0f
-		);
-		m4f transform = (m4f::translate(
+		monkey->transform = (m4f::translate(
 			m4f::identity(),
 			v3f(0.0f, 0.0f, -5.0f)
 		) * m4f::rotate(
@@ -253,27 +262,19 @@ extern "C" int entrypoint() {
 			rot,
 			raxis
 		));
-		monkey->update_transforms();
-		monkey->update_cbuffers(
-			dev,
-			transform,
-			projection
-		);
-		ctx.debug_push("depth prepass");
-		monkey->render(
-			dev,
-			&frame_arena,
-			depth_prepass,
-			clamped_linear
-		);
-		ctx.debug_pop();
-		ctx.debug_push("forward");
-		monkey->render(
-			dev,
-			&frame_arena,
-			pass2,
-			clamped_linear
-		);
+		monkey2->transform = (m4f::translate(
+			m4f::identity(),
+			v3f(2.0f, 0.0f, -7.0f)
+		) * m4f::rotate(
+			m4f::identity(),
+			rot * 2.0f,
+			v3f(1.0f, 0.0f, 0.0f)
+		));
+		camera.asp = (float)bb.w / (float)bb.h;
+		scene.update(camera, dev);
+		ctx.debug_push("scene");
+		scene.render(dev, &frame_arena, depth_prepass, clamped_linear);
+		scene.render(dev, &frame_arena, pass2, clamped_linear);
 		ctx.debug_pop();
 
 		ctx.debug_push("ui");
@@ -286,6 +287,7 @@ extern "C" int entrypoint() {
 		dev->present();
 		app->end();
 	}
+	scene.destroy(dev);
 	ui->destroy();
 	assets.destroy();
 	dev->destroy_texture(default_texture);
-- 
cgit v1.2.3-54-g00ecf