void Update()
{
if (m_particlesBuffer == null)
{
m_particlesBuffer = new ComputeBuffer[2];
for (int i = 0; i < 2; ++i)
{
m_particlesBuffer[i] = new ComputeBuffer(m_nWidth * m_nHeight, 4, ComputeBufferType.Default);
}
}
m_particleAreaShader.SetFloat("_Dissipation", m_densityDissipation);
m_particleAreaShader.SetFloat("_ElapsedTime", Time.deltaTime);
m_particleAreaShader.SetFloat("_Speed", m_simulation.GetSimulationSpeed());
// ADVECT (Particles)
m_particleAreaShader.SetBuffer(m_advectKernel, "_Obstacles", m_simulation.ObstaclesBuffer);
m_particleAreaShader.SetBuffer(m_advectKernel, "_Velocity", m_simulation.VelocityBuffer);
m_particleAreaShader.SetBuffer(m_advectKernel, "_ParticlesIn", m_particlesBuffer[READ]);
m_particleAreaShader.SetBuffer(m_advectKernel, "_ParticlesOut", m_particlesBuffer[WRITE]);
m_particleAreaShader.Dispatch(m_advectKernel, m_nNumGroupsX, m_nNumGroupsY, 1);
FlipBuffers();
if (m_colourRamp == null)
{
m_colourRamp = new ComputeBuffer(m_nColourRampSize, 16, ComputeBufferType.Default);
UpdateGradient();
}
if (m_updateGradient)
{
if (gradient1 == true)
{
UpdateGradient();
}
if (gradient1 == false)
{
UpdateGradient2();
}
}
//RENDER
GetComponent <Renderer>().material.SetBuffer("_Particles", m_particlesBuffer[READ]);
GetComponent <Renderer>().material.SetBuffer("_ColourRamp", m_colourRamp);
GetComponent <Renderer>().material.SetVector("_Size", new Vector2(m_nWidth, m_nHeight));
// Cache particles
if (m_CacheParticles)
{
m_particlesBuffer[READ].GetData(m_currentParticles);
}
}