SDFFieldProcessor() [2/2]

MayaFlux::Buffers::SDFFieldProcessor::SDFFieldProcessor	(	std::shared_ptr< VKBuffer >	grid_buf,
		const Kinesis::FieldSource &	field,
		const glm::vec3 &	bounds_min,
		const glm::vec3 &	bounds_max,
		uint32_t	res_x,
		uint32_t	res_y,
		uint32_t	res_z
	)

Evaluate an authored field function instead of a shader file.

The shader is generated from field: its function is emitted as written and a kernel body calls it at every grid corner. Time and the parameter block reach it through set_time() and set_params(), so animating a field recompiles nothing.

Parameters

grid_buf	HOST_STORAGE buffer sized to (res_x+1)*(res_y+1)*(res_z+1) floats.
field	Parsed field function, from MF_FIELD, MF_FIELD_T or MF_FIELD_P.
bounds_min	World-space minimum corner.
bounds_max	World-space maximum corner.
res_x	Cell count along X.
res_y	Cell count along Y.
res_z	Cell count along Z.

Definition at line 109 of file SDFFieldProcessor.cpp.

    : ComputeProcessor(field_spec(field))
    , m_from_field(true)
    , m_grid_buf(std::move(grid_buf))
    , m_res_x(std::max(res_x, 1U))
    , m_res_y(std::max(res_y, 1U))
    , m_res_z(std::max(res_z, 1U))
{
    m_field_pc.res_x = m_res_x;
    m_field_pc.res_y = m_res_y;
    m_field_pc.res_z = m_res_z;
    set_bounds(bounds_min, bounds_max);
 
    m_config.bindings["sdf_grid"] = ShaderBinding(0, 0, vk::DescriptorType::eStorageBuffer);
 
    set_dispatch_mode(ShaderDispatchConfig::DispatchMode::MANUAL);
    const uint32_t corners = (m_res_x + 1) * (m_res_y + 1) * (m_res_z + 1);
    set_manual_dispatch((corners + 63U) / 64U, 1, 1);
}

References MayaFlux::Buffers::ShaderConfig::bindings, MayaFlux::Buffers::ShaderProcessor::m_config, m_field_pc, m_res_x, m_res_y, m_res_z, MayaFlux::Buffers::ShaderDispatchConfig::MANUAL, max, MayaFlux::Buffers::SDFFieldProcessor::FieldPC::res_x, MayaFlux::Buffers::SDFFieldProcessor::FieldPC::res_y, MayaFlux::Buffers::SDFFieldProcessor::FieldPC::res_z, set_bounds(), MayaFlux::Buffers::ComputeProcessor::set_dispatch_mode(), and MayaFlux::Buffers::ComputeProcessor::set_manual_dispatch().

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