/// <summary>
///
/// </summary>
void SetupGPUParameters(float stepTime, RenderWorld renderWorld, Matrix view, Matrix projection, Flags flags)
{
var deltaTime = stepTime;
var camera = renderWorld.Camera;
var cameraMatrix = Matrix.Invert(view);
// kill particles by applying very large delta.
if (requestKill)
{
deltaTime = float.MaxValue / 2;
requestKill = false;
}
if (rs.FreezeParticles)
{
deltaTime = 0;
}
// fill constant data :
PrtParams param = new PrtParams();
param.View = view;
param.Projection = projection;
param.MaxParticles = 0;
param.DeltaTime = deltaTime;
param.CameraForward = new Vector4(cameraMatrix.Forward, 0);
param.CameraRight = new Vector4(cameraMatrix.Right, 0);
param.CameraUp = new Vector4(cameraMatrix.Up, 0);
param.CameraPosition = new Vector4(cameraMatrix.TranslationVector, 1);
param.Gravity = new Vector4(this.Gravity, 0);
param.MaxParticles = MaxSimulatedParticles;
param.LinearizeDepthA = camera.LinearizeDepthScale;
param.LinearizeDepthB = camera.LinearizeDepthBias;
param.CocBias = renderWorld.DofSettings.CocBias;
param.CocScale = renderWorld.DofSettings.CocScale;
if (flags == Flags.INJECTION)
{
param.MaxParticles = injectionCount;
}
// copy to gpu :
paramsCB.SetData(param);
// set DeadListSize to prevent underflow:
if (flags == Flags.INJECTION)
{
deadParticlesIndices.CopyStructureCount(paramsCB, Marshal.OffsetOf(typeof(PrtParams), "DeadListSize").ToInt32());
}
}
/// <summary>
///
/// </summary>
void SetupGPUParameters ( float stepTime, RenderWorld renderWorld, Matrix view, Matrix projection, Flags flags )
{
var deltaTime = stepTime;
var camera = renderWorld.Camera;
var cameraMatrix = Matrix.Invert( view );
// kill particles by applying very large delta.
if (requestKill) {
deltaTime = float.MaxValue / 2;
requestKill = false;
}
if (rs.FreezeParticles) {
deltaTime = 0;
}
// fill constant data :
PrtParams param = new PrtParams();
param.View = view;
param.Projection = projection;
param.MaxParticles = 0;
param.DeltaTime = deltaTime;
param.CameraForward = new Vector4( cameraMatrix.Forward , 0 );
param.CameraRight = new Vector4( cameraMatrix.Right , 0 );
param.CameraUp = new Vector4( cameraMatrix.Up , 0 );
param.CameraPosition = new Vector4( cameraMatrix.TranslationVector , 1 );
param.Gravity = new Vector4( this.Gravity, 0 );
param.MaxParticles = MaxSimulatedParticles;
param.LinearizeDepthA = camera.LinearizeDepthScale;
param.LinearizeDepthB = camera.LinearizeDepthBias;
param.CocBias = renderWorld.DofSettings.CocBias;
param.CocScale = renderWorld.DofSettings.CocScale;
if (flags==Flags.INJECTION) {
param.MaxParticles = injectionCount;
}
// copy to gpu :
paramsCB.SetData( param );
// set DeadListSize to prevent underflow:
if (flags==Flags.INJECTION) {
deadParticlesIndices.CopyStructureCount( paramsCB, Marshal.OffsetOf( typeof(PrtParams), "DeadListSize").ToInt32() );
}
}