rare variant

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
-project(gpu-particles VERSION 0.0.3)
+project(gpu-particles VERSION 0.0.4)
 
 option(ENABLE_ADDRSAN "Enable the address sanitizer" OFF)
 option(ENABLE_UBSAN "Enable the ub sanitizer" OFF)

include/shaders/particle.frag

@@ -0,0 +1,18 @@
+#ifdef __cplusplus
+#include <string>
+const std::string shader_particle_2d_frag = R"("
+#version 300 es
+precision mediump float;
+
+layout (location = 0) in vec4 position_uv;
+
+out vec2 UVs;
+
+void main()
+{
+    gl_Position = vec4(position_uv.x, position_uv.y, 0.0, 1.0);
+    UVs = position_uv.zw;
+}
+
+")";
+#endif

include/shaders/particle.vert

@@ -1,6 +1,6 @@
 #ifdef __cplusplus
 #include <string>
-const std::string shader_2d_font_frag = R"("
+const std::string shader_particle_2d_vert = R"("
 #version 300 es
 precision mediump float;
 

src/main.cpp

@@ -18,6 +18,8 @@
 #include "blt/gfx/renderer/resource_manager.h"
 #include "blt/gfx/renderer/batch_2d_renderer.h"
 #include "blt/gfx/renderer/camera.h"
+#include <shaders/particle.frag>
+#include <shaders/particle.vert>
 #include <imgui.h>
 
 blt::gfx::matrix_state_manager global_matrices;
@@ -32,10 +34,10 @@ struct particle_t
     blt::vec2 acceleration;
 };
 
-blt::gfx::vertex_array_t particle_vao;
-blt::gfx::vertex_buffer_t particle_vbo;
-blt::gfx::element_buffer_t alive_particles_ebo;
-blt::gfx::shader_t particle_shader{};
+std::unique_ptr<blt::gfx::vertex_array_t> particle_vao;
+std::unique_ptr<blt::gfx::vertex_buffer_t> particle_vbo;
+std::unique_ptr<blt::gfx::element_buffer_t> alive_particles_ebo;
+std::unique_ptr<blt::gfx::shader_t> particle_shader;
 
 std::vector<blt::u32> alive_particles;
 std::vector<blt::u32> dead_particles;
@@ -45,6 +47,7 @@ void init(const blt::gfx::window_data&)
 {
     using namespace blt::gfx;
 
+    particle_shader = std::unique_ptr<shader_t>(shader_t::make(shader_particle_2d_vert, shader_particle_2d_frag));
 
     global_matrices.create_internals();
     resources.load_resources();