public override void preparePerPass(Renderable r, Pass p)
{
ParticleSystem ps = r as ParticleSystem;
PipelineState pipeline = createPipeline();
RenderQueue <ParticleSystemInfo> rq = p.findRenderQueue(pipeline.id) as RenderQueue <ParticleSystemInfo>;
if (rq == null)
{
rq = Renderer.device.createRenderQueue <ParticleSystemInfo>(pipeline);
rq.name = "particle system";
rq.visualizer = this;
p.registerQueue(rq);
}
ParticleSystemInfo info = rq.nextInfo();
float dist = (p.view.camera.position - r.position).Length;
info.distToCamera = dist;
info.count = ps.particles.Count;
info.renderState.setVertexBuffer(ps.vbo.id, 0, 0, V3C4S3R.stride);
info.renderState.alphaToCoverage.enabled = true;
info.renderState.setUniform(new UniformData(0, Uniform.UniformType.Mat4, Matrix4.CreateTranslation(ps.position)));
info.renderState.setTexture(ps.material.id(), 0, TextureTarget.Texture2D);
info.renderState.setUniform(new UniformData(20, Uniform.UniformType.Int, 0));
}
// public override void preparePerPassFinalize(Pass p) { }
// public override void prepareFrameFinalize() { }
#endregion
#region generate command phase
// public override void generateRenderCommandsBegin(BaseRenderQueue q) { }
public override void generateRenderCommand(RenderInfo r, BaseRenderQueue q)
{
ParticleSystemInfo psi = r as ParticleSystemInfo;
q.addCommand(new SetRenderStateCommand(r.renderState));
q.addCommand(new DrawArraysCommand(PrimitiveType.Points, 0, psi.count));
}
