public ShaderParameters(Transform objTransform, Camera camera)
{
var projectionMatrix = MyUtility.GetProjectMatrix(camera.fieldOfView, camera.aspect, camera.nearClipPlane, camera.farClipPlane);
var viewMatrix = MyUtility.GetViewMatrix(camera);
var modelMatrix = MyUtility.GetModelMatrix(objTransform);
var time = Time.time;
var sinTime = Mathf.Sin(time);
var cosTime = Mathf.Cos(time);
var deltaTime = Time.deltaTime;
var smoothDeltaTime = Time.smoothDeltaTime;
// Built-in shader variables
unity_ObjectToWorld = modelMatrix; // M
UNITY_MATRIX_V = viewMatrix; // V
UNITY_MATRIX_P = projectionMatrix; // P
unity_WorldToObject = objTransform.worldToLocalMatrix;
UNITY_MATRIX_MV = UNITY_MATRIX_V * unity_ObjectToWorld;
UNITY_MATRIX_MVP = UNITY_MATRIX_P * UNITY_MATRIX_MV;
UNITY_MATRIX_VP = UNITY_MATRIX_P * UNITY_MATRIX_V;
UNITY_MATRIX_T_MV = UNITY_MATRIX_MV.transpose;
UNITY_MATRIX_IT_MV = UNITY_MATRIX_T_MV.inverse;
// Camera and screen (TODO)
// Time
_Time = new Vector4(time / 20.0f, time, time * 2.0f, time * 3.0f); // Time since level load (t/20, t, t*2, t*3), use to animate things inside the shaders.
_SinTime = new Vector4(sinTime / 8.0f, sinTime / 4.0f, sinTime / 2.0f, sinTime); // Sine of time: (t/8, t/4, t/2, t).
_CosTime = new Vector4(cosTime / 8.0f, cosTime / 4.0f, cosTime / 2.0f, cosTime); // Cosine of time: (t/8, t/4, t/2, t).
unity_DeltaTime = new Vector4(deltaTime, 1.0f / deltaTime, smoothDeltaTime, 1.0f / smoothDeltaTime); // Delta time: (dt, 1/dt, smoothDt, 1/smoothDt).
}