overte/libraries/render-utils/src/RenderPipelines.cpp

299 lines
13 KiB
C++

//
// RenderPipelines.cpp
// render-utils/src/
//
// Created by Zach Pomerantz on 1/28/2016.
// Copyright 2016 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 <gpu/Context.h>
#include <gpu/StandardShaderLib.h>
#include "DeferredLightingEffect.h"
#include "TextureCache.h"
#include "render/DrawTask.h"
#include "model_vert.h"
#include "model_shadow_vert.h"
#include "model_normal_map_vert.h"
#include "model_lightmap_vert.h"
#include "model_lightmap_normal_map_vert.h"
#include "skin_model_vert.h"
#include "skin_model_shadow_vert.h"
#include "skin_model_normal_map_vert.h"
#include "model_frag.h"
#include "model_emissive_frag.h"
#include "model_shadow_frag.h"
#include "model_normal_map_frag.h"
#include "model_normal_specular_map_frag.h"
#include "model_specular_map_frag.h"
#include "model_lightmap_frag.h"
#include "model_lightmap_normal_map_frag.h"
#include "model_lightmap_normal_specular_map_frag.h"
#include "model_lightmap_specular_map_frag.h"
#include "model_translucent_frag.h"
#include "model_translucent_emissive_frag.h"
#include "overlay3D_vert.h"
#include "overlay3D_frag.h"
#include "overlay3D_translucent_frag.h"
#include "overlay3D_emissive_frag.h"
#include "overlay3D_translucent_emissive_frag.h"
#include "drawOpaqueStencil_frag.h"
using namespace render;
void initStencilPipeline(gpu::PipelinePointer& pipeline) {
const gpu::int8 STENCIL_OPAQUE = 1;
auto vs = gpu::StandardShaderLib::getDrawUnitQuadTexcoordVS();
auto ps = gpu::Shader::createPixel(std::string(drawOpaqueStencil_frag));
auto program = gpu::Shader::createProgram(vs, ps);
gpu::Shader::makeProgram((*program));
auto state = std::make_shared<gpu::State>();
state->setDepthTest(true, false, gpu::LESS_EQUAL);
state->setStencilTest(true, 0xFF, gpu::State::StencilTest(STENCIL_OPAQUE, 0xFF, gpu::ALWAYS, gpu::State::STENCIL_OP_REPLACE, gpu::State::STENCIL_OP_KEEP, gpu::State::STENCIL_OP_REPLACE));
state->setColorWriteMask(0);
pipeline = gpu::Pipeline::create(program, state);
}
gpu::BufferView getDefaultMaterialBuffer() {
model::Material::Schema schema;
schema._albedo = vec3(1.0f);
schema._opacity = 1.0f;
schema._metallic = 0.1f;
schema._roughness = 0.9f;
return gpu::BufferView(std::make_shared<gpu::Buffer>(sizeof(model::Material::Schema), (const gpu::Byte*) &schema));
}
void batchSetter(const ShapePipeline& pipeline, gpu::Batch& batch) {
// Set a default albedo map
batch.setResourceTexture(render::ShapePipeline::Slot::ALBEDO_MAP,
DependencyManager::get<TextureCache>()->getWhiteTexture());
// Set a default normal map
batch.setResourceTexture(render::ShapePipeline::Slot::NORMAL_FITTING_MAP,
DependencyManager::get<TextureCache>()->getNormalFittingTexture());
// Set a default material
if (pipeline.locations->materialBufferUnit >= 0) {
static const gpu::BufferView OPAQUE_SCHEMA_BUFFER = getDefaultMaterialBuffer();
batch.setUniformBuffer(ShapePipeline::Slot::MATERIAL_BUFFER, OPAQUE_SCHEMA_BUFFER);
}
}
void lightBatchSetter(const ShapePipeline& pipeline, gpu::Batch& batch) {
batchSetter(pipeline, batch);
// Set the light
if (pipeline.locations->lightBufferUnit >= 0) {
DependencyManager::get<DeferredLightingEffect>()->setupKeyLightBatch(batch,
pipeline.locations->lightBufferUnit,
-1);
}
}
void initOverlay3DPipelines(ShapePlumber& plumber) {
auto vertex = gpu::Shader::createVertex(std::string(overlay3D_vert));
auto pixel = gpu::Shader::createPixel(std::string(overlay3D_frag));
auto pixelTranslucent = gpu::Shader::createPixel(std::string(overlay3D_translucent_frag));
auto pixelEmissive = gpu::Shader::createPixel(std::string(overlay3D_emissive_frag));
auto pixelTranslucentEmissive = gpu::Shader::createPixel(std::string(overlay3D_translucent_emissive_frag));
auto opaqueProgram = gpu::Shader::createProgram(vertex, pixel);
auto translucentProgram = gpu::Shader::createProgram(vertex, pixelTranslucent);
auto emissiveOpaqueProgram = gpu::Shader::createProgram(vertex, pixelEmissive);
auto emissiveTranslucentProgram = gpu::Shader::createProgram(vertex, pixelTranslucentEmissive);
for (int i = 0; i < 8; i++) {
bool isCulled = (i & 1);
bool isBiased = (i & 2);
bool isOpaque = (i & 4);
auto state = std::make_shared<gpu::State>();
state->setDepthTest(false);
state->setCullMode(isCulled ? gpu::State::CULL_BACK : gpu::State::CULL_NONE);
if (isBiased) {
state->setDepthBias(1.0f);
state->setDepthBiasSlopeScale(1.0f);
}
if (isOpaque) {
// Soft edges
state->setBlendFunction(true,
gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
} else {
state->setBlendFunction(true,
gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
}
ShapeKey::Filter::Builder builder;
isCulled ? builder.withCullFace() : builder.withoutCullFace();
isBiased ? builder.withDepthBias() : builder.withoutDepthBias();
isOpaque ? builder.withOpaque() : builder.withTranslucent();
auto simpleProgram = isOpaque ? opaqueProgram : translucentProgram;
auto emissiveProgram = isOpaque ? emissiveOpaqueProgram : emissiveTranslucentProgram;
plumber.addPipeline(builder.withoutEmissive().build(), simpleProgram, state, &lightBatchSetter);
plumber.addPipeline(builder.withEmissive().build(), emissiveProgram, state, &batchSetter);
}
}
void initDeferredPipelines(render::ShapePlumber& plumber) {
using Key = render::ShapeKey;
using ShaderPointer = gpu::ShaderPointer;
auto addPipeline = [&plumber](const Key& key, const ShaderPointer& vertexShader, const ShaderPointer& pixelShader) {
// These keyvalues' pipelines will be added by this lamdba in addition to the key passed
assert(!key.isWireFrame());
assert(!key.isDepthBiased());
assert(key.isCullFace());
ShaderPointer program = gpu::Shader::createProgram(vertexShader, pixelShader);
for (int i = 0; i < 8; i++) {
bool isCulled = (i & 1);
bool isBiased = (i & 2);
bool isWireframed = (i & 4);
ShapeKey::Builder builder(key);
auto state = std::make_shared<gpu::State>();
// Depth test depends on transparency
state->setDepthTest(true, !key.isTranslucent(), gpu::LESS_EQUAL);
state->setBlendFunction(key.isTranslucent(),
gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
if (!isCulled) {
builder.withoutCullFace();
}
state->setCullMode(isCulled ? gpu::State::CULL_BACK : gpu::State::CULL_NONE);
if (isWireframed) {
builder.withWireframe();
state->setFillMode(gpu::State::FILL_LINE);
}
if (isBiased) {
builder.withDepthBias();
state->setDepthBias(1.0f);
state->setDepthBiasSlopeScale(1.0f);
}
plumber.addPipeline(builder.build(), program, state,
key.isTranslucent() ? &lightBatchSetter : &batchSetter);
}
};
// Vertex shaders
auto modelVertex = gpu::Shader::createVertex(std::string(model_vert));
auto modelNormalMapVertex = gpu::Shader::createVertex(std::string(model_normal_map_vert));
auto modelLightmapVertex = gpu::Shader::createVertex(std::string(model_lightmap_vert));
auto modelLightmapNormalMapVertex = gpu::Shader::createVertex(std::string(model_lightmap_normal_map_vert));
auto modelShadowVertex = gpu::Shader::createVertex(std::string(model_shadow_vert));
auto skinModelVertex = gpu::Shader::createVertex(std::string(skin_model_vert));
auto skinModelNormalMapVertex = gpu::Shader::createVertex(std::string(skin_model_normal_map_vert));
auto skinModelShadowVertex = gpu::Shader::createVertex(std::string(skin_model_shadow_vert));
// Pixel shaders
auto modelPixel = gpu::Shader::createPixel(std::string(model_frag));
auto modelEmissivePixel = gpu::Shader::createPixel(std::string(model_emissive_frag));
auto modelNormalMapPixel = gpu::Shader::createPixel(std::string(model_normal_map_frag));
auto modelSpecularMapPixel = gpu::Shader::createPixel(std::string(model_specular_map_frag));
auto modelNormalSpecularMapPixel = gpu::Shader::createPixel(std::string(model_normal_specular_map_frag));
auto modelTranslucentPixel = gpu::Shader::createPixel(std::string(model_translucent_frag));
auto modelTranslucentEmissivePixel = gpu::Shader::createPixel(std::string(model_translucent_emissive_frag));
auto modelShadowPixel = gpu::Shader::createPixel(std::string(model_shadow_frag));
auto modelLightmapPixel = gpu::Shader::createPixel(std::string(model_lightmap_frag));
auto modelLightmapNormalMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_normal_map_frag));
auto modelLightmapSpecularMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_specular_map_frag));
auto modelLightmapNormalSpecularMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_normal_specular_map_frag));
// TODO: Refactor this to use a filter
// Opaques
addPipeline(
Key::Builder(),
modelVertex, modelPixel);
addPipeline(
Key::Builder().withEmissive(),
modelVertex, modelEmissivePixel);
addPipeline(
Key::Builder().withTangents(),
modelNormalMapVertex, modelNormalMapPixel);
addPipeline(
Key::Builder().withSpecular(),
modelVertex, modelSpecularMapPixel);
addPipeline(
Key::Builder().withTangents().withSpecular(),
modelNormalMapVertex, modelNormalSpecularMapPixel);
// Translucents
addPipeline(
Key::Builder().withTranslucent(),
modelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withTranslucent().withEmissive(),
modelVertex, modelTranslucentEmissivePixel);
addPipeline(
Key::Builder().withTranslucent().withTangents(),
modelNormalMapVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withTranslucent().withSpecular(),
modelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withTranslucent().withTangents().withSpecular(),
modelNormalMapVertex, modelTranslucentPixel);
addPipeline(
// FIXME: Ignore lightmap for translucents meshpart
Key::Builder().withTranslucent().withLightmap(),
modelVertex, modelTranslucentPixel);
// Lightmapped
addPipeline(
Key::Builder().withLightmap(),
modelLightmapVertex, modelLightmapPixel);
addPipeline(
Key::Builder().withLightmap().withTangents(),
modelLightmapNormalMapVertex, modelLightmapNormalMapPixel);
addPipeline(
Key::Builder().withLightmap().withSpecular(),
modelLightmapVertex, modelLightmapSpecularMapPixel);
addPipeline(
Key::Builder().withLightmap().withTangents().withSpecular(),
modelLightmapNormalMapVertex, modelLightmapNormalSpecularMapPixel);
// Skinned
addPipeline(
Key::Builder().withSkinned(),
skinModelVertex, modelPixel);
addPipeline(
Key::Builder().withSkinned().withTangents(),
skinModelNormalMapVertex, modelNormalMapPixel);
addPipeline(
Key::Builder().withSkinned().withSpecular(),
skinModelVertex, modelSpecularMapPixel);
addPipeline(
Key::Builder().withSkinned().withTangents().withSpecular(),
skinModelNormalMapVertex, modelNormalSpecularMapPixel);
// Skinned and Translucent
addPipeline(
Key::Builder().withSkinned().withTranslucent(),
skinModelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withTranslucent().withTangents(),
skinModelNormalMapVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withTranslucent().withSpecular(),
skinModelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withTranslucent().withTangents().withSpecular(),
skinModelNormalMapVertex, modelTranslucentPixel);
// Depth-only
addPipeline(
Key::Builder().withDepthOnly(),
modelShadowVertex, modelShadowPixel);
addPipeline(
Key::Builder().withSkinned().withDepthOnly(),
skinModelShadowVertex, modelShadowPixel);
}