From 824aa5562864ca90ea903e2fa7d99459bbdf3a0b Mon Sep 17 00:00:00 2001
From: vimene <vincent.menegaux@gmail.com>
Date: Sat, 9 Dec 2023 08:57:38 +0100
Subject: fixed perspective, added plane

---
 src/engine.cpp | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

(limited to 'src/engine.cpp')

diff --git a/src/engine.cpp b/src/engine.cpp
index adfe43a..96dfd7b 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -54,22 +54,17 @@ static void usage_error_exit() {
 }
 
 static void scene_main(engine::Renderer& renderer, engine::math::Matrix4 final_transform_mat, std::function<bool()> update_frame) {
-    float dist = 4.f;
+    float dist = 1.5f;
     float rad = 5.f;
     bool cont = true;
     engine::o3d::Scene scene{
         {{0.f, 0.f, rad * dist}, 0.f, 0.f, 0.f}, // camera
         { // objects
             engine::o3d::Object3D{
-                engine::o3d::Mesh::cube(),
+                engine::o3d::Mesh::plane(),
                 -rad * engine::math::Vector3(.5f, .5f, .5f),
                 rad, 0.f, 0.f, 0.f
             },
-            engine::o3d::Object3D{
-                engine::o3d::Mesh::cube(),
-                +rad * engine::math::Vector3(.5f, .5f, .5f),
-                rad, 0.f, 0.f, 0.f
-            },
         }
     };
     auto scale_mat = engine::math::Matrix4::scale(rad);
@@ -84,13 +79,12 @@ static void scene_main(engine::Renderer& renderer, engine::math::Matrix4 final_t
             * engine::math::Matrix4::rot_x(-scene.camera.rot_x)
             * engine::math::Matrix4::rot_y(-scene.camera.rot_y)
             * engine::math::Matrix4::rot_z(-scene.camera.rot_z);
-        std::array<engine::math::Matrix4, 2> mats{{
-            transform_mat * engine::math::Matrix4::translate(engine::math::Vector3{-.5f * rad, -.5f * rad, -.5f * rad}) * scale_mat,
-            transform_mat * engine::math::Matrix4::translate(engine::math::Vector3{+.5f * rad, +.5f * rad, +.5f * rad}) * scale_mat,
+        std::array<engine::math::Matrix4, 1> mats{{
+            transform_mat * scale_mat,
         }};
         auto pre_final_mat = final_transform_mat
             * engine::math::Matrix4::projection(static_cast<float>(renderer.height()) / static_cast<float>(renderer.width()), 2.f, 50.f);
-        for (int i = 0; i < 2; i++) {
+        for (int i = 0; i < 1; i++) {
             auto final_mat = pre_final_mat * mats[i];
             const auto& mesh = scene.objs[i].mesh;
             std::vector<engine::o3d::Vertex4> pts;
-- 
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