Computer Graphics

 Welcome to my last blog for our course CENG469 Computer Graphics 2! This blog will be about our final project which we chose the subject ourselves.  I chose to simulate a falling snow and its accumulation on ground as I am in the end a winter child and also wanted to create something I encounter while playing my favourite games. I implemented a particle system to simulate the falling snow and used displacement map to show the accumulation. I will again explain my implementation step by step. Snow Particles First step was generating the snow particles. To do this I implemented a snowflake struct which has the necessary attributes position, size, velocity and direction vector. In every frame, I created a new snowflake with random attributes and erased them when they hit the ground. Also I added and normalized their direction vector with another random vector to create the chaotic movement of snow fall. struct Snowflake { Snowflake ( glm :: vec3 p , glm :: vec3 d , float ...

 Welcome to my third blog post which will about our third assignment in Computer Graphics 2 class. In this assignment, we were asked to implement a plane-like movement camera in an environment which has cloud texture made with Perlin Noise. Transformation with quaternions I first started with implementing the plane like movements which are yaw, pitch and roll of the camera using quaternions. To capture the movements, I first created three vectors which represents the axises of the environment. Then, everytime the user presses a button to change the rotation, I calculated the related quaternion and applied it on these axises. Then I did all my other calculations (such as placing the quad for cloud texture which will be mentioned in a bit) according to those axises. glm :: mat4 rotationmatrix = glm :: toMat4 ( rollQuat ) * glm :: toMat4 ( pitchQuat ) * glm :: toMat4 ( yawQuat ); xAxis = glm :: normalize ( rotationmatrix * xAxis ); yAxis = glm :: normalize ( rotationmatrix ...