fix: remove alpha blending

.gitignore

@@ -1,2 +1,3 @@
 build/
 .cache/
+compile_commands.json

include/engine/object.hpp

@@ -19,7 +19,7 @@ class EngineObject {
         glm::vec4 scale;
 
         std::vector<float> vertices;
-        std::vector<uint16_t> indices;
+        std::vector<unsigned int> indices;
 
         bgfx::VertexLayout layout;
         bgfx::TextureHandle texture;

shaders/vs_basic.sc

@@ -30,5 +30,5 @@ void main() {
   vec4 pos = view + u_position;
 
   gl_Position = mul(u_proj, pos);
-  f_position = r_position;
+  f_position = a_position;
 }

src/engine.cpp

@@ -132,7 +132,7 @@ int Engine::Update(void) {
                 BGFX_STATE_WRITE_G | 
                 BGFX_STATE_WRITE_B | 
                 BGFX_STATE_WRITE_A | 
-                BGFX_STATE_BLEND_ALPHA | 
+                BGFX_STATE_WRITE_Z |
                 BGFX_STATE_DEPTH_TEST_LESS | 
                 BGFX_STATE_CULL_CCW );
 
@@ -153,7 +153,7 @@ int Engine::Update(void) {
     return 0;
 }
 
-void Engine::Shutdown(void) {
+void Engine::Shutdown(void) { 
     for (int i = 0; i < this->objs.size(); i++) {
         EngineObject* obj = this->objs[i];
         bgfx::destroy(obj->vbh);

src/engine/object.cpp

@@ -18,14 +18,6 @@ EngineObject::EngineObject() {
 }
 
 int EngineObject::load_node(aiScene *scene, aiNode *node) {
-    if (node == nullptr) {
-        return -1;
-    }
-
-    if (scene == nullptr) {
-        return -1;
-    }
-
     for (unsigned int i = 0; i < scene->mNumMeshes; ++i) {
         aiMesh *mesh = scene->mMeshes[i];
         for (unsigned int j = 0; j < mesh->mNumVertices; ++j) {
@@ -47,12 +39,6 @@ int EngineObject::load_node(aiScene *scene, aiNode *node) {
     return 0;
 }
 
-struct vertex {
-    float x; 
-    float y; 
-    float z;
-};
-
 int EngineObject::load_model(std::string filename) {
     Assimp::Importer importer;
     aiScene *scene = (aiScene *) importer.ReadFile(filename, aiProcess_Triangulate | aiProcess_FlipUVs);
@@ -62,20 +48,12 @@ int EngineObject::load_model(std::string filename) {
     }
 
     aiNode *root = scene->mRootNode;
-    if (root == NULL) {
-        std::cout << "--error: no model inside the loaded scene" << std::endl;
-        return -1;
-    }
-
-
     int ret = this->load_node(scene, root);
     if (ret < 0) {
         std::cout << "-error: failed loading node tree" << std::endl;
         return -1;
     }
 
-    std::cout << "--log: successfully loaded model (" << filename << ")" << std::endl;
-
     this->vbh = bgfx::createVertexBuffer(bgfx::makeRef(
                 this->vertices.data(),
                 this->vertices.size()*sizeof(float)), 
@@ -83,8 +61,8 @@ int EngineObject::load_model(std::string filename) {
 
     this->ibh = bgfx::createIndexBuffer(bgfx::makeRef(
                 this->indices.data(),
-                this->indices.size()*sizeof(uint16_t))
+                this->indices.size()*sizeof(unsigned int)),
-            );
+            BGFX_BUFFER_INDEX32);
 
     return 0;
 }

src/eo.cpp

@@ -21,7 +21,7 @@ int main(int argc, char *argv[]) {
     }
 
     EngineObject obj;
-    obj.load_model("models/cube.obj");
+    obj.load_model("models/dragon.obj");
     obj.position.z = -30.0f;
 
     engine.Instantiate(&obj);