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Translate camera target when panning

This commit is contained in:
Kienan Stewart 2020-02-24 21:40:45 -05:00
parent adb7f45052
commit 997a50eb72
1 changed files with 8 additions and 4 deletions
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12
src/client/client_imgui.cpp
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@ -112,6 +112,7 @@ int main(int argc, char** argv)
int window_height, window_width;
glm::mat4 projection;
glm::vec3 camera_position = glm::vec3(4.f, 3.f, 3.f);
glm::vec3 camera_looking_at = glm::vec3(0.f, 0.f, 0.f);
glm::mat4 view = glm::lookAt(camera_position, glm::vec3(0,0,0), glm::vec3(0,1,0));
glm::mat4 model_matrix = glm::mat4(1.0f);
glm::mat4 model_default = glm::mat4(1.0f);
@ -146,10 +147,11 @@ int main(int argc, char** argv)
cv_y -= camera_velocity * dt;
}
camera_translation = glm::vec3(cv_x, cv_y, 0.f);
auto ctm = glm::translate(glm::mat4(1.0f), camera_translation);
auto ncp = ctm * glm::vec4(camera_position[0], camera_position[1], camera_position[2], 1.0f);
auto ncp = glm::translate(glm::mat4(1.0f), camera_translation) * glm::vec4(camera_position[0], camera_position[1], camera_position[2], 1.0f);
auto ncla = glm::translate(glm::mat4(1.0f), camera_translation) * glm::vec4(camera_looking_at[0], camera_looking_at[1], camera_looking_at[2], 1.0f);
camera_position = glm::vec3(ncp[0], ncp[1], ncp[2]);
view = glm::lookAt(camera_position, glm::vec3(0,0,0), glm::vec3(0,1,0));
camera_looking_at = glm::vec3(ncla[0], ncla[1], ncla[2]);
view = glm::lookAt(camera_position, camera_looking_at, glm::vec3(0,1,0));
// Process messages
int messages_treated = messager.processAll();
@ -198,10 +200,12 @@ int main(int argc, char** argv)
static int counter = 0;
ImGui::Begin("Misc"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("Camera Position: %f, %f, %f", camera_position[0], camera_position[1], camera_position[2]);
ImGui::Text("Camera Looking At: %f, %f, %f", camera_looking_at[0], camera_looking_at[1], camera_looking_at[2]);
ImGui::SliderFloat("Field of View (FOV)", &fov, 45.0f, 180.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
ImGui::Separator();
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
ImGui::End();