public virtual UInt64 getSortId(RenderInfo info)
{
UInt64 sortId = 0;
if (info.pipeline.blending.enabled == true) //this is a transparent object
{
//sort these back to front so transparent objects draw properly
//regardless of material or object type
sortId |= (UInt64)((1.0f / info.distToCamera) * UInt64.MaxValue);
}
else
{
//sort these front to back to reduce overdraw, but also in groups of similar
//objects so we reduce state switches. Put renderables in depth buckets
// which then get sorted by the texture or vbo id (depending on which is available)
float maxDistance = 2000.0f;
Byte distBucket = (Byte)((info.distToCamera / maxDistance) * 255); //number of distance buckets
sortId = 0;
sortId |= (UInt64)info.renderState.myVertexBuffers[0].id << 32;
sortId |= (UInt64)distBucket;
}
return(sortId);
}
public virtual void generateRenderCommand(RenderInfo r, BaseRenderQueue q)
{
}