From 977b4eb63e484df9374b2692d7e90688b85c91b5 Mon Sep 17 00:00:00 2001
From: TheRedShip <yavin.contre@scub.net>
Date: Thu, 30 Jan 2025 17:16:03 +0100
Subject: [PATCH] ~ | some opti

---
 includes/RT/Shader.hpp |  2 +-
 scenes/dragon.rt       |  9 ++-------
 shaders/trace.glsl     | 19 +++++++++--------
 srcs/RT.cpp            | 46 ++----------------------------------------
 srcs/class/Shader.cpp  |  6 +++++-
 5 files changed, 21 insertions(+), 61 deletions(-)

diff --git a/includes/RT/Shader.hpp b/includes/RT/Shader.hpp
index 029de67..e94714b 100644
--- a/includes/RT/Shader.hpp
+++ b/includes/RT/Shader.hpp
@@ -22,7 +22,7 @@ class Shader
 		~Shader(void);
 
 		void	attach(void);
-		void	setupVertexBuffer(const Vertex* vertices, size_t size);
+		void	setupVertexBuffer();
 		void	drawTriangles(size_t size);
 
 		// void	setBool(const std::string &name, bool value) const;
diff --git a/scenes/dragon.rt b/scenes/dragon.rt
index a0ed4e7..bb191c4 100644
--- a/scenes/dragon.rt
+++ b/scenes/dragon.rt
@@ -24,13 +24,8 @@ pl	0 -2 0		0 1 0		2 // floor
 
 qu	-1 1.999 -1	2 0 0		0 0 2		6
 
-OBJ scenes/obj/Dragon_800K.obj -0.5 0 0.55  5       0 90 0
-OBJ scenes/obj/Dragon_800K.obj 0.5 0 -0.55 5		0 -90 0
-
-
-# OBJ obj/Model.obj
-
-# OBJ obj/Lowpoly_tree_sample.obj
+OBJ obj/Dragon_800K.obj -0.5 0 0.55  5       0 90 0
+OBJ obj/Dragon_800K.obj 0.5 0 -0.55 5		0 -90 0
 
 po  -1.99 -0.5 -0.5           0 1 0   	0 0 1		1	4
 po  1.99 -0.5 -0.5            0 1 0   	0 0 1		0	4
diff --git a/shaders/trace.glsl b/shaders/trace.glsl
index 110ba58..df84795 100644
--- a/shaders/trace.glsl
+++ b/shaders/trace.glsl
@@ -168,21 +168,24 @@ hitInfo traceRay(Ray ray)
 	hitInfo hitScene;
 	hitInfo hit;
 
+	#if 0
 	for (int i = 0; i < 10; i++) // portal ray
 	{
 		hitBVH = traverseBVHs(ray);
 		hitScene = traceScene(ray);
 		
 		hit = hitBVH.t < hitScene.t ? hitBVH : hitScene;
-		#if 1
-			if (hit.obj_index == -1 || objects[hit.obj_index].type != 5)
-				break ;
-			ray = portalRay(ray, hit);
-			ray.inv_direction = (1.0 / ray.direction);
-		#else
-			return (hit);
-		#endif
+		if (hit.obj_index == -1 || objects[hit.obj_index].type != 5)
+			break ;
+		ray = portalRay(ray, hit);
+		ray.inv_direction = (1.0 / ray.direction);
+		return (hit);
 	}
+	#else 
+		hitBVH = traverseBVHs(ray);
+		hitScene = traceScene(ray);
+		return (hitBVH.t < hitScene.t ? hitBVH : hitScene);
+	#endif
 
 	return (hit);
 }
diff --git a/srcs/RT.cpp b/srcs/RT.cpp
index ccf2e97..8b995d8 100644
--- a/srcs/RT.cpp
+++ b/srcs/RT.cpp
@@ -112,15 +112,10 @@ int main(int argc, char **argv)
 
 	shader.attach();
 
-	Vertex vertices[3] = {{{-1.0f, -1.0f}, {0.0f, 0.0f}},{{3.0f, -1.0f}, {2.0f, 0.0f}},{{-1.0f, 3.0f}, {0.0f, 2.0f}}};
-	size_t size = sizeof(vertices) / sizeof(Vertex) / 3;
-	shader.setupVertexBuffer(vertices, size);
-
-	std::vector<int>	recorded_fps;
+	shader.setupVertexBuffer();
 
 	while (!window.shouldClose())
 	{
-
 		glUseProgram(shader.getProgramCompute());
 		
 		glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO);
@@ -131,37 +126,7 @@ int main(int argc, char **argv)
 		glBindBuffer(GL_SHADER_STORAGE_BUFFER, lightSSBO);
 		glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, gpu_lights_array.size() * sizeof(int), gpu_lights_array.data());
 
-		Camera *camera = scene.getCamera();
-
-		// performance profiling
-		if (false)
-		{
-			float time = (float)(glfwGetTime()) ;
-
-			recorded_fps.push_back((int)window.getFps());
-
-			float y_offset = 35;
-			float dist_to_obj = 55;
-			float speed = 0.5;
-
-			camera->setPosition(glm::vec3(
-								cos((time + 6.28) * speed) * dist_to_obj,
-								y_offset,
-								sin((time + 6.28) * speed) * dist_to_obj
-								));
-
-			glm::vec3 direction = glm::normalize(camera->getPosition());
-			float yaw = glm::degrees(atan2(direction.z, direction.x));
-			
-			if ((int)yaw == 179)
-				break;
-
-			camera->setDirection(0, yaw - 180);
-			camera->updateCameraVectors();
-		}
-		//
-
-		GPUCamera camera_data = camera->getGPUData();
+		GPUCamera camera_data = scene.getCamera()->getGPUData();
 		glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);
 		glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(GPUCamera), &camera_data);
 
@@ -200,13 +165,6 @@ int main(int argc, char **argv)
 	ImGui_ImplOpenGL3_Shutdown();
 	ImGui_ImplGlfw_Shutdown();
 	ImGui::DestroyContext();
-	
-	// performance profiling
-	std::ofstream file("fps.txt");
-	for (int i = 0; i < (int) recorded_fps.size(); i++)
-		file << recorded_fps[i] << std::endl;
-	file.close();
-	//
 
 	return (0);
 }
diff --git a/srcs/class/Shader.cpp b/srcs/class/Shader.cpp
index a17a557..2d569f7 100644
--- a/srcs/class/Shader.cpp
+++ b/srcs/class/Shader.cpp
@@ -151,8 +151,12 @@ void Shader::checkCompileErrors(GLuint shader)
 	}
 }
 
-void Shader::setupVertexBuffer(const Vertex* vertices, size_t size)
+void Shader::setupVertexBuffer()
 {
+
+	Vertex vertices[3] = {{{-1.0f, -1.0f}, {0.0f, 0.0f}},{{3.0f, -1.0f}, {2.0f, 0.0f}},{{-1.0f, 3.0f}, {0.0f, 2.0f}}};
+	size_t size = sizeof(vertices) / sizeof(Vertex) / 3;
+
     glGenVertexArrays(1, &_screen_VAO);
     glGenBuffers(1, &_screen_VBO);