894c7fa4e2
This only changes file and function names. The EEVEE identifier is still `BLENDER_EEVEE_NEXT`. No functional changes.
125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "eevee_instance.hh"
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#include "eevee_hizbuffer.hh"
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namespace blender::eevee {
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/* -------------------------------------------------------------------- */
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/** \name Hierarchical-Z buffer
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*
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* \{ */
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void HiZBuffer::sync()
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{
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int2 render_extent = inst_.film.render_extent_get();
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int2 probe_extent = int2(inst_.sphere_probes.probe_render_extent());
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/* Padding to avoid complexity during down-sampling and screen tracing. */
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int2 hiz_extent = math::ceil_to_multiple(math::max(render_extent, probe_extent),
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int2(1u << (HIZ_MIP_COUNT - 1)));
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int2 dispatch_size = math::divide_ceil(hiz_extent, int2(HIZ_GROUP_SIZE));
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eGPUTextureUsage usage = GPU_TEXTURE_USAGE_SHADER_READ | GPU_TEXTURE_USAGE_SHADER_WRITE;
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for ([[maybe_unused]] const int i : IndexRange(hiz_tx_.size())) {
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hiz_tx_.current().ensure_2d(GPU_R32F, hiz_extent, usage, nullptr, HIZ_MIP_COUNT);
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hiz_tx_.current().ensure_mip_views();
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GPU_texture_mipmap_mode(hiz_tx_.current(), true, false);
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hiz_tx_.swap();
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}
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data_.uv_scale = float2(render_extent) / float2(hiz_extent);
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/* TODO(@fclem): There might be occasions where we might not want to
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* copy mip 0 for performance reasons if there is no need for it. */
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bool update_mip_0 = true;
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{
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PassSimple &pass = hiz_update_ps_;
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GPUShader *sh = inst_.shaders.static_shader_get(HIZ_UPDATE);
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pass.init();
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pass.specialize_constant(sh, "update_mip_0", update_mip_0);
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pass.shader_set(sh);
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pass.bind_ssbo("finished_tile_counter", atomic_tile_counter_);
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/* TODO(fclem): Should be a parameter to avoid confusion. */
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pass.bind_texture("depth_tx", &src_tx_, with_filter);
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pass.bind_image("out_mip_0", &hiz_mip_ref_[0]);
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pass.bind_image("out_mip_1", &hiz_mip_ref_[1]);
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pass.bind_image("out_mip_2", &hiz_mip_ref_[2]);
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pass.bind_image("out_mip_3", &hiz_mip_ref_[3]);
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pass.bind_image("out_mip_4", &hiz_mip_ref_[4]);
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pass.bind_image("out_mip_5", &hiz_mip_ref_[5]);
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pass.bind_image("out_mip_6", &hiz_mip_ref_[6]);
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pass.dispatch(int3(dispatch_size, 1));
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pass.barrier(GPU_BARRIER_TEXTURE_FETCH);
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}
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{
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PassSimple &pass = hiz_update_layer_ps_;
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GPUShader *sh = inst_.shaders.static_shader_get(HIZ_UPDATE_LAYER);
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pass.init();
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pass.specialize_constant(sh, "update_mip_0", update_mip_0);
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pass.shader_set(sh);
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pass.bind_ssbo("finished_tile_counter", atomic_tile_counter_);
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/* TODO(fclem): Should be a parameter to avoid confusion. */
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pass.bind_texture("depth_layered_tx", &src_tx_, with_filter);
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pass.bind_image("out_mip_0", &hiz_mip_ref_[0]);
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pass.bind_image("out_mip_1", &hiz_mip_ref_[1]);
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pass.bind_image("out_mip_2", &hiz_mip_ref_[2]);
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pass.bind_image("out_mip_3", &hiz_mip_ref_[3]);
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pass.bind_image("out_mip_4", &hiz_mip_ref_[4]);
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pass.bind_image("out_mip_5", &hiz_mip_ref_[5]);
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pass.bind_image("out_mip_6", &hiz_mip_ref_[6]);
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pass.push_constant("layer_id", &layer_id_);
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pass.dispatch(int3(dispatch_size, 1));
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pass.barrier(GPU_BARRIER_TEXTURE_FETCH);
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}
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if (inst_.debug_mode == eDebugMode::DEBUG_HIZ_VALIDATION) {
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debug_draw_ps_.init();
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debug_draw_ps_.state_set(DRW_STATE_WRITE_COLOR | DRW_STATE_BLEND_CUSTOM);
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debug_draw_ps_.shader_set(inst_.shaders.static_shader_get(HIZ_DEBUG));
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debug_draw_ps_.bind_resources(this->front);
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debug_draw_ps_.draw_procedural(GPU_PRIM_TRIS, 1, 3);
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}
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}
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void HiZBuffer::update()
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{
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if (!is_dirty_) {
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return;
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}
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src_tx_ = *src_tx_ptr_;
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for (const int i : IndexRange(HIZ_MIP_COUNT)) {
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hiz_mip_ref_[i] = hiz_tx_.current().mip_view(i);
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}
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if (layer_id_ == -1) {
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inst_.manager->submit(hiz_update_ps_);
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}
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else {
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inst_.manager->submit(hiz_update_layer_ps_);
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}
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is_dirty_ = false;
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}
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void HiZBuffer::debug_draw(View &view, GPUFrameBuffer *view_fb)
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{
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if (inst_.debug_mode == eDebugMode::DEBUG_HIZ_VALIDATION) {
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inst_.info_append(
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"Debug Mode: HiZ Validation\n"
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" - Red: pixel in front of HiZ tile value.\n"
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" - Blue: No error.");
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inst_.hiz_buffer.update();
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GPU_framebuffer_bind(view_fb);
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inst_.manager->submit(debug_draw_ps_, view);
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}
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}
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/** \} */
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} // namespace blender::eevee
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