public override unsafe void PatchVertexBuffer(ref ParticleBufferState bufferState, Vector3 invViewX, Vector3 invViewY, ref ParticleList sorter)
{
// If you want, you can integrate the base builder here and not call it. It should result in slight speed up
base.PatchVertexBuffer(ref bufferState, invViewX, invViewY, ref sorter);
// Update the non-default coordinates first, because they update off the default ones
if (UVBuilder1 != null)
{
UVBuilder1.BuildUVCoordinates(ref bufferState, ref sorter, texCoord1);
}
// Update the default coordinates last
if (UVBuilder0 != null)
{
UVBuilder0.BuildUVCoordinates(ref bufferState, ref sorter, texCoord0);
}
// If the particles have color field, the base class should have already passed the information
if (HasColorField)
{
return;
}
// If there is no color stream we don't need to fill anything
var colAttribute = bufferState.GetAccessor(VertexAttributes.Color);
if (colAttribute.Size <= 0)
{
return;
}
// Since the particles don't have their own color field, set the default color to white
var color = 0xFFFFFFFF;
bufferState.StartOver();
foreach (var particle in sorter)
{
bufferState.SetAttributePerParticle(colAttribute, (IntPtr)(&color));
bufferState.NextParticle();
}
bufferState.StartOver();
}
/// <inheritdoc />
public override unsafe void BuildUVCoordinates(ref ParticleBufferState bufferState, ref ParticleList sorter, AttributeDescription texCoordsDescription)
{
var lifeField = sorter.GetField(ParticleFields.RemainingLife);
if (!lifeField.IsValid())
{
return;
}
var texAttribute = bufferState.GetAccessor(texCoordsDescription);
if (texAttribute.Size == 0 && texAttribute.Offset == 0)
{
return;
}
var texDefault = bufferState.GetAccessor(bufferState.DefaultTexCoords);
if (texDefault.Size == 0 && texDefault.Offset == 0)
{
return;
}
foreach (var particle in sorter)
{
var normalizedTimeline = 1f - *(float *)(particle[lifeField]);
var spriteId = startingFrame + (int)(normalizedTimeline * animationSpeedOverLife);
Vector4 uvTransform = new Vector4((spriteId % xDivisions) * xStep, (spriteId / xDivisions) * yStep, xStep, yStep);
bufferState.TransformAttributePerParticle(texDefault, texAttribute, this, ref uvTransform);
bufferState.NextParticle();
}
bufferState.StartOver();
}
/// <inheritdoc />
public unsafe override void PatchVertexBuffer(ref ParticleBufferState bufferState, Vector3 invViewX, Vector3 invViewY, ref ParticleList sorter)
{
// If you want, you can implement the base builder here and not call it. It should result in slight speed up
base.PatchVertexBuffer(ref bufferState, invViewX, invViewY, ref sorter);
// The UV Builder, if present, animates the basic (0, 0, 1, 1) uv coordinates of each billboard
UVBuilder?.BuildUVCoordinates(ref bufferState, ref sorter, bufferState.DefaultTexCoords);
bufferState.StartOver();
// If the particles have color field, the base class should have already passed the information
if (HasColorField)
{
return;
}
// If the particles don't have color field but there is no color stream either we don't need to fill anything
var colAttribute = bufferState.GetAccessor(VertexAttributes.Color);
if (colAttribute.Size <= 0)
{
return;
}
// Since the particles don't have their own color field, set the default color to white
var color = 0xFFFFFFFF;
// TODO: for loop. Remove IEnumerable from sorter
foreach (var particle in sorter)
{
bufferState.SetAttributePerParticle(colAttribute, (IntPtr)(&color));
bufferState.NextParticle();
}
bufferState.StartOver();
}
public override unsafe void PatchVertexBuffer(ref ParticleBufferState bufferState, Vector3 invViewX, Vector3 invViewY, ref ParticleList sorter)
{
// If you want, you can integrate the base builder here and not call it. It should result in slight speed up
base.PatchVertexBuffer(ref bufferState, invViewX, invViewY, ref sorter);
// Update the non-default coordinates first, because they update off the default ones
if (UVBuilder1 != null) UVBuilder1.BuildUVCoordinates(ref bufferState, ref sorter, texCoord1);
// Update the default coordinates last
if (UVBuilder0 != null) UVBuilder0.BuildUVCoordinates(ref bufferState, ref sorter, texCoord0);
// If the particles have color field, the base class should have already passed the information
if (HasColorField)
return;
// If there is no color stream we don't need to fill anything
var colAttribute = bufferState.GetAccessor(VertexAttributes.Color);
if (colAttribute.Size <= 0)
return;
// Since the particles don't have their own color field, set the default color to white
var color = 0xFFFFFFFF;
bufferState.StartOver();
foreach (var particle in sorter)
{
bufferState.SetAttributePerParticle(colAttribute, (IntPtr)(&color));
bufferState.NextParticle();
}
bufferState.StartOver();
}
/// <inheritdoc />
public unsafe override void PatchVertexBuffer(ref ParticleBufferState bufferState, Vector3 invViewX, Vector3 invViewY, ref ParticleList sorter)
{
// If you want, you can implement the base builder here and not call it. It should result in slight speed up
base.PatchVertexBuffer(ref bufferState, invViewX, invViewY, ref sorter);
// The UV Builder, if present, animates the basic (0, 0, 1, 1) uv coordinates of each billboard
UVBuilder?.BuildUVCoordinates(ref bufferState, ref sorter, bufferState.DefaultTexCoords);
bufferState.StartOver();
// If the particles have color field, the base class should have already passed the information
if (HasColorField)
return;
// If the particles don't have color field but there is no color stream either we don't need to fill anything
var colAttribute = bufferState.GetAccessor(VertexAttributes.Color);
if (colAttribute.Size <= 0)
return;
// Since the particles don't have their own color field, set the default color to white
var color = 0xFFFFFFFF;
// TODO: for loop. Remove IEnumerable from sorter
foreach (var particle in sorter)
{
bufferState.SetAttributePerParticle(colAttribute, (IntPtr)(&color));
bufferState.NextParticle();
}
bufferState.StartOver();
}
