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Performance optimization

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Redacted
2024-01-24 08:54:26 -05:00
parent ab8ccea8b7
commit 73c9d074f8
4 changed files with 18 additions and 16 deletions
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3
src/engine/engine.cpp
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@@ -42,7 +42,8 @@ void Engine::initGL()
glDepthFunc(GL_LESS);
glDepthMask(GL_TRUE);
glClearDepth(1.0f);
glDisable(GL_CULL_FACE);
glEnable(GL_CULL_FACE);
//glDepthRange(-0.5f,0.5f);
}

11
src/engine/render.cpp
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@@ -40,9 +40,10 @@ void Render::render() {
glLoadIdentity();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST_MIPMAP_NEAREST);
//TODO: *Always* render the camera first.
glCullFace(GL_BACK);
for (auto& e : engine->world->GetChildren()) {
if (e->draw)
e->render();
@@ -75,11 +76,11 @@ void Render::render_loop() {
std::this_thread::sleep_for(std::chrono::microseconds(remaining));
dT += remaining;
}
//Decrease framerate when focus is lost.
if (!engine->window->getFlag(RWindowFlags::IN_FOCUS)) {
dT = 41666.67f - dT;
std::this_thread::sleep_for(std::chrono::microseconds((int) dT));
int remaining = 41666.67f - dT;
std::this_thread::sleep_for(std::chrono::microseconds(remaining));
dT += remaining;
}
engine->frameDelta = (dT / 1000000);
}

2
src/types/skybox.cpp
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@@ -18,7 +18,9 @@ void Skybox::render() {
glPushMatrix();
glTranslatef(position.x ,position.y, position.z);
glBindTexture(GL_TEXTURE_2D, getTextureID());
glCullFace(GL_FRONT);
getGeometry()->draw();
glCullFace(GL_BACK);
glBindTexture(GL_TEXTURE_2D,0);
glPopMatrix();
}

18
src/types/vertex.cpp
View File

@@ -64,18 +64,16 @@ void VertexArray::load (const std::string& filename) {
void VertexArray::draw() {
if (!indices.empty()) {
glEnable(GL_TEXTURE_2D);
glBegin(GL_TRIANGLES);
for (size_t i = 0; i < indices.size(); i += 3) {
glTexCoord2f(vertices[indices[i]].u, vertices[indices[i]].v);
glVertex3f(vertices[indices[i]].x, vertices[indices[i]].y, vertices[indices[i]].z);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoord2f(vertices[indices[i + 1]].u, vertices[indices[i + 1]].v);
glVertex3f(vertices[indices[i + 1]].x, vertices[indices[i + 1]].y, vertices[indices[i + 1]].z);
glVertexPointer(3, GL_FLOAT, sizeof(Vertex), &vertices[0].x);
glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), &vertices[0].u);
glTexCoord2f(vertices[indices[i + 2]].u, vertices[indices[i + 2]].v);
glVertex3f(vertices[indices[i + 2]].x, vertices[indices[i + 2]].y, vertices[indices[i + 2]].z);
}
glEnd();
glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, &indices[0]);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_TEXTURE_2D);
}