From 71df788350794e061419304eafff9ac354841eb9 Mon Sep 17 00:00:00 2001
From: TheRedShip <nocoyav54@gmail.com>
Date: Sun, 19 Jan 2025 15:48:25 +0100
Subject: [PATCH] + | Patching opti's problem

---
 fps.txt              | 5486 ++++++++++++++++++++----------------------
 imgui.ini            |   10 +-
 shaders/compute.glsl |    1 +
 shaders/debug.glsl   |    1 +
 srcs/RT.cpp          |    6 +-
 srcs/class/BVH.cpp   |    2 +-
 6 files changed, 2636 insertions(+), 2870 deletions(-)

diff --git a/fps.txt b/fps.txt
index 0ee8cf3..8314797 100644
--- a/fps.txt
+++ b/fps.txt
@@ -1,2897 +1,2661 @@
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 210
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diff --git a/imgui.ini b/imgui.ini
index d0bc36c..4a6d9b7 100644
--- a/imgui.ini
+++ b/imgui.ini
@@ -3,22 +3,22 @@ Pos=60,60
 Size=400,400
 
 [Window][Camera]
-Pos=1652,11
+Pos=1646,5
 Size=259,200
 
 [Window][Material]
 Pos=1648,207
-Size=266,285
+Size=266,299
 
 [Window][Fog settings]
-Pos=1643,500
-Size=247,157
+Pos=1649,509
+Size=247,130
 
 [Window][Debug]
 Pos=1642,668
 Size=260,143
 
 [Window][Debug BVH]
-Pos=1639,664
+Pos=1646,642
 Size=274,205
 
diff --git a/shaders/compute.glsl b/shaders/compute.glsl
index 6b77014..983565a 100644
--- a/shaders/compute.glsl
+++ b/shaders/compute.glsl
@@ -186,6 +186,7 @@ vec3    pathtrace(Ray ray, inout uint rng_state)
 			break;
 
 		ray = newRay(hit, ray, rng_state);
+		ray.inv_direction = 1.0 / ray.direction;
 	}
 
 	return (color * light);
diff --git a/shaders/debug.glsl b/shaders/debug.glsl
index bfec4c9..9562a42 100644
--- a/shaders/debug.glsl
+++ b/shaders/debug.glsl
@@ -95,6 +95,7 @@ struct Ray
 {
 	vec3 origin;
 	vec3 direction;
+	vec3 inv_direction;
 };
 
 struct hitInfo
diff --git a/srcs/RT.cpp b/srcs/RT.cpp
index 5dcd34d..1dfb72b 100644
--- a/srcs/RT.cpp
+++ b/srcs/RT.cpp
@@ -20,8 +20,8 @@ int main(int argc, char **argv)
 		return (1);
 
 	Window		window(&scene, WIDTH, HEIGHT, "RT_GPU", 0);
-	Shader		shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/compute.glsl");
-	// Shader		shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/debug.glsl");
+	// Shader		shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/compute.glsl");
+	Shader		shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/debug.glsl");
 
 	GLint max_gpu_size;
 	glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &max_gpu_size);
@@ -122,7 +122,7 @@ int main(int argc, char **argv)
 		Camera *camera = scene.getCamera();
 
 		// performance profiling
-		if (false)
+		if (true)
 		{
 			float time = (float)(glfwGetTime()) ;
 
diff --git a/srcs/class/BVH.cpp b/srcs/class/BVH.cpp
index e5befc4..4650fe1 100644
--- a/srcs/class/BVH.cpp
+++ b/srcs/class/BVH.cpp
@@ -46,7 +46,7 @@ void	BVH::updateBounds(std::vector<GPUTriangle> &primitives)
 
 void	BVH::subdivide(std::vector<GPUTriangle> &primitives)
 {
-	if (_primitive_count <= 4)
+	if (_primitive_count <= 100)
 		return ;
 
 	glm::vec3 extent = _aabb.max - _aabb.min;