set_influence_target()

void MayaFlux::Nexus::Emitter::set_influence_target	(	std::shared_ptr< Buffers::RenderProcessor >	proc,
		uint32_t	set = 1,
		uint32_t	binding = 0
	)

Set the render processor to target for GPU-side influence delivery.

Creates a UBO matching the InfluenceUBO layout, registers a binding named "u_influence" at set=1 binding=0 on the target processor, and binds the UBO. On each subsequent invoke(), the context fields are packed into the UBO automatically.

Parameters

proc	Target render processor. Must outlive this Emitter or be cleared via clear_influence_target() first.
set	Descriptor set index for the UBO binding. Default is 1.
binding	Descriptor binding index for the UBO. Default is 0.

Definition at line 17 of file Emitter.cpp.

{
    if (!proc) {
        MF_ERROR(Journal::Component::Nexus, Journal::Context::Init,
            "Cannot set null influence target");
        return;
    }
 
    if (m_influence_ubo) {
        clear_influence_target();
    }
 
    m_influence_ubo = std::make_shared<Buffers::VKBuffer>(
        sizeof(InfluenceUBO),
        Buffers::VKBuffer::Usage::UNIFORM,
        Kakshya::DataModality::UNKNOWN);
 
    proc->add_binding("u_influence",
        Buffers::ShaderBinding { set, binding, vk::DescriptorType::eUniformBuffer });
 
    proc->bind_buffer("u_influence", m_influence_ubo);
 
    m_influence_target = std::move(proc);
}

References clear_influence_target(), MayaFlux::Journal::Init, m_influence_target, m_influence_ubo, MF_ERROR, MayaFlux::Journal::Nexus, and MayaFlux::Kakshya::UNKNOWN.

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