From d2b5fc5b3bc648afffa42375706429685ac63794 Mon Sep 17 00:00:00 2001
From: Mel <einebeere@gmail.com>
Date: Mon, 12 Feb 2024 12:55:11 +0100
Subject: Split rendering into own thread and sync through render action lists

---
 src/World/Clouds.cpp | 113 ++++++++++++---------------------------------------
 1 file changed, 26 insertions(+), 87 deletions(-)

(limited to 'src/World/Clouds.cpp')

diff --git a/src/World/Clouds.cpp b/src/World/Clouds.cpp
index b30c0ce..58b1919 100644
--- a/src/World/Clouds.cpp
+++ b/src/World/Clouds.cpp
@@ -5,65 +5,47 @@
 #include "../Math/AABB.hpp"
 #include "../GFX/Util/Primitives.hpp"
 #include "../GFX/Util/MeshBuilder.hpp"
-#include <GL/glew.h>
 #include <array>
 
 namespace MC::World {
 
-Clouds::Clouds(Real ascept, Real fov, Real near, Real far, Vector<3, F32> sky_color, Vector<3, F32> sun_direction)
-    : m_program(
-    {GFX::Shading::Shader::Type::Vertex, vertex},
-    {GFX::Shading::Shader::Type::Fragment, fragment}
-    ),
-    m_mesh(create_mesh(create_cloud_matrix())),
-    m_model_uniform(), m_view_uniform(), m_projection_uniform() {
-    m_program.bind();
-
-    m_model_uniform = m_program.uniform("model_matrix");
-    m_view_uniform = m_program.uniform("view_matrix");
-    m_projection_uniform = m_program.uniform("projection_matrix");
-    auto sky_color_uniform = m_program.uniform("sky_color");
-    auto sun_direction_uniform = m_program.uniform("sun_direction");
-
-    m_model_uniform.set(Math::MVP::model<F32>({}, {}, {}));
-    m_view_uniform.set(Math::MVP::view<F32>({}, {}));
-    m_projection_uniform.set(Math::MVP::perspective_projection<F32>(ascept, fov, near, far));
-    sky_color_uniform.set(sky_color);
-    sun_direction_uniform.set(sun_direction);
-
-    m_program.unbind();
-}
-
-void Clouds::update(const Time& time) {
+void Clouds::update(Time const& time) {
     m_x_offset += 5.0 * time.delta();
 }
 
-void Clouds::render(const GFX::Camera& camera) {
-    auto position = camera.position();
-
-    I32 center_x = std::round((position.x() - m_x_offset) / TileSize);
-    I32 center_y = std::round(position.z() / TileSize);
+void Clouds::render(GFX::Actions& actions, Position::World player_position) {
+    I32 center_x = std::round((player_position.x() - m_x_offset) / TileSize);
+    I32 center_y = std::round(player_position.z() / TileSize);
 
     for (Int x = -1; x <= 1; x++) {
         for (Int y = -1; y <= 1; y++) {
-            render_single_instance(camera, center_x + x, center_y + y);
+            render_single_instance(actions, center_x + x, center_y + y);
         }
     }
 }
 
-void Clouds::render_single_instance(const GFX::Camera& camera, Int x, Int y) {
+void Clouds::render_single_instance(GFX::Actions& actions, Int x, Int y) {
     Vector<3> position{TileSize * x + m_x_offset, Height, TileSize * y};
 
-    m_program.bind();
-
-    m_view_uniform.set(Math::MVP::view<F32>(camera.position(), camera.angles()));
-    m_model_uniform.set(Math::MVP::model<F32>(position, Vector<3>{Scale}, {}));
-
-    m_mesh.bind();
-    glDrawElements(GL_TRIANGLES, m_mesh.size(), GL_UNSIGNED_INT, nullptr);
-    m_mesh.unbind();
-
-    m_program.unbind();
+    // m_program.bind();
+    //
+    // m_view_uniform.set(Math::MVP::view<F32>(camera.position(), camera.angles()));
+    // m_model_uniform.set(Math::MVP::model<F32>(position, Vector<3>{Scale}, {}));
+    //
+    // m_mesh.bind();
+    // glDrawElements(GL_TRIANGLES, m_mesh.size(), GL_UNSIGNED_INT, nullptr);
+    // m_mesh.unbind();
+    //
+    // m_program.unbind();
+    actions.add({
+        .mesh = &m_mesh,
+        .program = GFX::Resources::Program::Clouds,
+        .transform = Transform(
+            position,
+            Rotation::zero(),
+            Vec3(Scale)
+        ),
+    });
 }
 
 Clouds::CloudMatrix Clouds::create_cloud_matrix() {
@@ -80,7 +62,7 @@ Clouds::CloudMatrix Clouds::create_cloud_matrix() {
     return clouds;
 }
 
-GFX::Mesh Clouds::create_mesh(const CloudMatrix& cloud_matrix) {
+GFX::Mesh Clouds::create_mesh(CloudMatrix const& cloud_matrix) {
     GFX::Util::MeshBuilder<Vector<3, F32>> builder{};
 
     for (Int x = 0; x < CloudMatrixSize; x++) {
@@ -112,47 +94,4 @@ GFX::Mesh Clouds::create_mesh(const CloudMatrix& cloud_matrix) {
     return builder.mesh();
 }
 
-const Char* Clouds::vertex = R"v(
-#version 330 core
-
-uniform mat4 model_matrix;
-uniform mat4 view_matrix;
-uniform mat4 projection_matrix;
-
-layout (location = 0) in vec3 position;
-layout (location = 1) in vec3 normal;
-
-out vec3 surface_normal;
-out float depth;
-
-void main() {
-    vec4 world_position = model_matrix * vec4(position, 1.0);
-    vec4 view_position = view_matrix * world_position;
-    vec4 clip_position = projection_matrix * view_position;
-
-    gl_Position = clip_position;
-    surface_normal = (model_matrix * vec4(normal, 0.0)).xyz;
-    depth = clamp((length(view_position) - 200) / 400, 0.0, 1.0);
-}
-)v";
-
-const Char* Clouds::fragment = R"f(
-#version 330 core
-
-uniform vec3 sky_color;
-uniform vec3 sun_direction;
-
-in vec3 surface_normal;
-in float depth;
-out vec4 color;
-
-void main() {
-    float brightness = dot(normalize(surface_normal), normalize(-sun_direction));
-    vec3 diffuse = vec3(1 - clamp(brightness, -0.3, 0.2));
-    vec3 base = vec3(1.0, 1.0, 1.0) * diffuse;
-
-    color = vec4(mix(sky_color, base, 1 - depth), 0.3);
-}
-)f";
-
 }
-- 
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