overte-JulianGro/libraries/render-utils/src/RenderDeferredTask.cpp

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//
// RenderDeferredTask.cpp
// render-utils/src/
//
// Created by Sam Gateau on 5/29/15.
// Copyright 20154 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "RenderDeferredTask.h"
#include <PerfStat.h>
#include <RenderArgs.h>
#include <ViewFrustum.h>
#include <gpu/Context.h>
#include <gpu/StandardShaderLib.h>
#include "FramebufferCache.h"
#include "DeferredLightingEffect.h"
#include "TextureCache.h"
#include "HitEffect.h"
#include "render/DrawStatus.h"
#include "AmbientOcclusionEffect.h"
#include "AntialiasingEffect.h"
#include "overlay3D_vert.h"
#include "overlay3D_frag.h"
#include "drawOpaqueStencil_frag.h"
using namespace render;
void SetupDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
RenderArgs* args = renderContext->args;
gpu::doInBatch(args->_context, [=](gpu::Batch& batch) {
auto primaryFbo = DependencyManager::get<FramebufferCache>()->getPrimaryFramebufferDepthColor();
batch.enableStereo(false);
batch.setFramebuffer(nullptr);
batch.setFramebuffer(primaryFbo);
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
batch.clearFramebuffer(
gpu::Framebuffer::BUFFER_COLOR0 |
gpu::Framebuffer::BUFFER_DEPTH,
vec4(vec3(0), 1), 1.0, 0.0, true);
});
}
void PrepareDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
DependencyManager::get<DeferredLightingEffect>()->prepare(renderContext->args);
}
void RenderDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
DependencyManager::get<DeferredLightingEffect>()->render(renderContext->args);
}
void ResolveDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
PerformanceTimer perfTimer("ResolveDeferred");
DependencyManager::get<DeferredLightingEffect>()->copyBack(renderContext->args);
}
RenderDeferredTask::RenderDeferredTask() : Task() {
_jobs.push_back(Job(new SetupDeferred::JobModel("SetupFramebuffer")));
// _jobs.push_back(Job(new DrawBackground::JobModel("DrawBackground")));
_jobs.push_back(Job(new PrepareDeferred::JobModel("PrepareDeferred")));
_jobs.push_back(Job(new FetchItems::JobModel("FetchOpaque",
FetchItems(
[] (const RenderContextPointer& context, int count) {
context->_numFeedOpaqueItems = count;
}
)
)));
_jobs.push_back(Job(new CullItems::JobModel("CullOpaque", _jobs.back().getOutput())));
_jobs.push_back(Job(new DepthSortItems::JobModel("DepthSortOpaque", _jobs.back().getOutput())));
auto& renderedOpaques = _jobs.back().getOutput();
_jobs.push_back(Job(new DrawOpaqueDeferred::JobModel("DrawOpaqueDeferred", _jobs.back().getOutput())));
_jobs.push_back(Job(new DrawStencilDeferred::JobModel("DrawOpaqueStencil")));
_jobs.push_back(Job(new DrawBackgroundDeferred::JobModel("DrawBackgroundDeferred")));
_jobs.push_back(Job(new DrawLight::JobModel("DrawLight")));
_jobs.push_back(Job(new RenderDeferred::JobModel("RenderDeferred")));
_jobs.push_back(Job(new ResolveDeferred::JobModel("ResolveDeferred")));
_jobs.push_back(Job(new AmbientOcclusion::JobModel("AmbientOcclusion")));
_jobs.back().setEnabled(false);
_occlusionJobIndex = _jobs.size() - 1;
_jobs.push_back(Job(new Antialiasing::JobModel("Antialiasing")));
_jobs.back().setEnabled(false);
_antialiasingJobIndex = _jobs.size() - 1;
_jobs.push_back(Job(new FetchItems::JobModel("FetchTransparent",
FetchItems(
ItemFilter::Builder::transparentShape().withoutLayered(),
[] (const RenderContextPointer& context, int count) {
context->_numFeedTransparentItems = count;
}
)
)));
_jobs.push_back(Job(new CullItems::JobModel("CullTransparent", _jobs.back().getOutput())));
_jobs.push_back(Job(new DepthSortItems::JobModel("DepthSortTransparent", _jobs.back().getOutput(), DepthSortItems(false))));
_jobs.push_back(Job(new DrawTransparentDeferred::JobModel("TransparentDeferred", _jobs.back().getOutput())));
_jobs.push_back(Job(new render::DrawStatus::JobModel("DrawStatus", renderedOpaques)));
_jobs.back().setEnabled(false);
_drawStatusJobIndex = _jobs.size() - 1;
_jobs.push_back(Job(new DrawOverlay3D::JobModel("DrawOverlay3D")));
_jobs.push_back(Job(new HitEffect::JobModel("HitEffect")));
_jobs.back().setEnabled(false);
_drawHitEffectJobIndex = _jobs.size() -1;
// Give ourselves 3 frmaes of timer queries
_timerQueries.push_back(std::make_shared<gpu::Query>());
_timerQueries.push_back(std::make_shared<gpu::Query>());
_timerQueries.push_back(std::make_shared<gpu::Query>());
_currentTimerQueryIndex = 0;
}
RenderDeferredTask::~RenderDeferredTask() {
}
void RenderDeferredTask::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
// sanity checks
assert(sceneContext);
if (!sceneContext->_scene) {
return;
}
// Is it possible that we render without a viewFrustum ?
if (!(renderContext->args && renderContext->args->_viewFrustum)) {
return;
}
// Make sure we turn the displayItemStatus on/off
setDrawItemStatus(renderContext->_drawItemStatus);
//Make sure we display hit effect on screen, as desired from a script
setDrawHitEffect(renderContext->_drawHitEffect);
// TODO: turn on/off AO through menu item
setOcclusionStatus(renderContext->_occlusionStatus);
setAntialiasingStatus(renderContext->_fxaaStatus);
renderContext->args->_context->syncCache();
for (auto job : _jobs) {
job.run(sceneContext, renderContext);
}
};
void DrawOpaqueDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
RenderArgs* args = renderContext->args;
gpu::doInBatch(args->_context, [=](gpu::Batch& batch) {
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
args->_batch = &batch;
renderContext->_numDrawnOpaqueItems = inItems.size();
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
{
const float OPAQUE_ALPHA_THRESHOLD = 0.5f;
args->_alphaThreshold = OPAQUE_ALPHA_THRESHOLD;
}
renderItems(sceneContext, renderContext, inItems, renderContext->_maxDrawnOpaqueItems);
args->_batch = nullptr;
});
}
void DrawTransparentDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
RenderArgs* args = renderContext->args;
gpu::doInBatch(args->_context, [=](gpu::Batch& batch) {
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
args->_batch = &batch;
renderContext->_numDrawnTransparentItems = inItems.size();
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
const float TRANSPARENT_ALPHA_THRESHOLD = 0.0f;
args->_alphaThreshold = TRANSPARENT_ALPHA_THRESHOLD;
renderItems(sceneContext, renderContext, inItems, renderContext->_maxDrawnTransparentItems);
args->_batch = nullptr;
});
}
gpu::PipelinePointer DrawOverlay3D::_opaquePipeline;
const gpu::PipelinePointer& DrawOverlay3D::getOpaquePipeline() {
if (!_opaquePipeline) {
auto vs = gpu::ShaderPointer(gpu::Shader::createVertex(std::string(overlay3D_vert)));
auto ps = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(overlay3D_frag)));
auto program = gpu::ShaderPointer(gpu::Shader::createProgram(vs, ps));
auto state = std::make_shared<gpu::State>();
state->setDepthTest(false);
// additive blending
state->setBlendFunction(true, gpu::State::ONE, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
_opaquePipeline.reset(gpu::Pipeline::create(program, state));
}
return _opaquePipeline;
}
void DrawOverlay3D::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
// render backgrounds
auto& scene = sceneContext->_scene;
auto& items = scene->getMasterBucket().at(ItemFilter::Builder::opaqueShape().withLayered());
ItemIDsBounds inItems;
inItems.reserve(items.size());
for (auto id : items) {
auto& item = scene->getItem(id);
if (item.getKey().isVisible() && (item.getLayer() == 1)) {
inItems.emplace_back(id);
}
}
renderContext->_numFeedOverlay3DItems = inItems.size();
renderContext->_numDrawnOverlay3DItems = inItems.size();
if (!inItems.empty()) {
RenderArgs* args = renderContext->args;
// Clear the framebuffer without stereo
// Needs to be distinct from the other batch because using the clear call
// while stereo is enabled triggers a warning
{
gpu::Batch batch;
batch.enableStereo(false);
batch.clearFramebuffer(gpu::Framebuffer::BUFFER_DEPTH, glm::vec4(), 1.f, 0, true);
args->_context->render(batch);
}
// Render the items
gpu::doInBatch(args->_context, [=](gpu::Batch& batch) {
args->_batch = &batch;
args->_whiteTexture = DependencyManager::get<TextureCache>()->getWhiteTexture();
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
batch.setPipeline(getOpaquePipeline());
batch.setResourceTexture(0, args->_whiteTexture);
renderItems(sceneContext, renderContext, inItems, renderContext->_maxDrawnOverlay3DItems);
});
args->_batch = nullptr;
args->_whiteTexture.reset();
}
}
gpu::PipelinePointer DrawStencilDeferred::_opaquePipeline;
const gpu::PipelinePointer& DrawStencilDeferred::getOpaquePipeline() {
if (!_opaquePipeline) {
const gpu::int8 STENCIL_OPAQUE = 1;
auto vs = gpu::StandardShaderLib::getDrawViewportQuadTransformTexcoordVS();
auto ps = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(drawOpaqueStencil_frag)));
auto program = gpu::ShaderPointer(gpu::Shader::createProgram(vs, ps));
gpu::Shader::makeProgram((*program));
auto state = std::make_shared<gpu::State>();
state->setStencilTest(true, 0xFF, gpu::State::StencilTest(STENCIL_OPAQUE, 0xFF, gpu::ALWAYS, gpu::State::STENCIL_OP_REPLACE, gpu::State::STENCIL_OP_REPLACE, gpu::State::STENCIL_OP_REPLACE));
// state->setStencilTest(false, 0xFF, gpu::State::StencilTest(STENCIL_OPAQUE, 0xFF, gpu::ALWAYS, gpu::State::STENCIL_OP_INCR, gpu::State::STENCIL_OP_INCR, gpu::State::STENCIL_OP_INCR));
state->setColorWriteMask(0);
_opaquePipeline.reset(gpu::Pipeline::create(program, state));
}
return _opaquePipeline;
}
void DrawStencilDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
// from the touched pixel generate the stencil buffer
RenderArgs* args = renderContext->args;
doInBatch(args->_context, [=](gpu::Batch& batch) {
args->_batch = &batch;
auto primaryFboColorDepthStencil = DependencyManager::get<FramebufferCache>()->getPrimaryFramebufferStencilColor();
auto primaryFboFull = DependencyManager::get<FramebufferCache>()->getPrimaryFramebuffer();
auto primaryDepth = DependencyManager::get<FramebufferCache>()->getPrimaryDepthTexture();
batch.enableStereo(false);
batch.setFramebuffer(primaryFboColorDepthStencil);
batch.clearStencilFramebuffer(0, true);
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
Transform modelMat;
batch.setModelTransform(modelMat);
batch.setPipeline(getOpaquePipeline());
batch.setResourceTexture(0, primaryDepth);
batch.draw(gpu::TRIANGLE_STRIP, 4);
batch.setResourceTexture(0, nullptr);
batch.setFramebuffer(primaryFboFull);
});
args->_batch = nullptr;
}
void DrawBackgroundDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
assert(renderContext->args);
assert(renderContext->args->_viewFrustum);
// render backgrounds
auto& scene = sceneContext->_scene;
auto& items = scene->getMasterBucket().at(ItemFilter::Builder::background());
ItemIDsBounds inItems;
inItems.reserve(items.size());
for (auto id : items) {
inItems.emplace_back(id);
}
RenderArgs* args = renderContext->args;
doInBatch(args->_context, [=](gpu::Batch& batch) {
args->_batch = &batch;
auto primaryFboColorStencil = DependencyManager::get<FramebufferCache>()->getPrimaryFramebufferStencilColor();
auto primaryFboFull = DependencyManager::get<FramebufferCache>()->getPrimaryFramebuffer();
batch.enableSkybox(true);
batch.setFramebuffer(primaryFboColorStencil);
batch.setViewportTransform(args->_viewport);
batch.setStateScissorRect(args->_viewport);
glm::mat4 projMat;
Transform viewMat;
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);
renderItems(sceneContext, renderContext, inItems);
batch.setFramebuffer(primaryFboFull);
});
args->_batch = nullptr;
}