overte-HifiExperiments/libraries/render-utils/src/RenderPipelines.cpp
2016-02-01 11:12:11 -08:00

234 lines
8.6 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 "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_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 "overlay3D_vert.h"
#include "overlay3D_frag.h"
#include "drawOpaqueStencil_frag.h"
using namespace render;
void initOverlay3DPipelines(ShapePlumber& plumber) {
auto vs = gpu::Shader::createVertex(std::string(overlay3D_vert));
auto ps = gpu::Shader::createPixel(std::string(overlay3D_frag));
auto program = gpu::Shader::createProgram(vs, ps);
auto opaqueState = std::make_shared<gpu::State>();
opaqueState->setDepthTest(false);
opaqueState->setBlendFunction(false);
plumber.addPipeline(ShapeKey::Filter::Builder().withOpaque(), program, opaqueState);
}
void initStencilPipelines(ShapePlumber& plumber) {
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);
plumber.addPipeline(ShapeKey::Filter::Builder(), program, state);
}
void pipelineBatchSetter(const ShapePipeline& pipeline, gpu::Batch& batch) {
if (pipeline.locations->normalFittingMapUnit > -1) {
batch.setResourceTexture(pipeline.locations->normalFittingMapUnit,
DependencyManager::get<TextureCache>()->getNormalFittingTexture());
}
}
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) {
auto state = std::make_shared<gpu::State>();
// Cull backface
state->setCullMode(gpu::State::CULL_BACK);
// Z test depends on transparency
state->setDepthTest(true, !key.isTranslucent(), gpu::LESS_EQUAL);
// Blend if transparent
state->setBlendFunction(key.isTranslucent(),
// For transparency, keep the highlight intensity
gpu::State::ONE, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
ShaderPointer program = gpu::Shader::createProgram(vertexShader, pixelShader);
plumber.addPipeline(key, program, state, &pipelineBatchSetter);
// Add a wireframe version
if (!key.isWireFrame()) {
auto wireFrameKey = Key::Builder(key).withWireframe();
auto wireFrameState = std::make_shared<gpu::State>(state->getValues());
wireFrameState->setFillMode(gpu::State::FILL_LINE);
plumber.addPipeline(wireFrameKey, program, wireFrameState, &pipelineBatchSetter);
}
};
// 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 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 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));
// Fill the pipelineLib
addPipeline(
Key::Builder(),
modelVertex, modelPixel);
addPipeline(
Key::Builder().withTangents(),
modelNormalMapVertex, modelNormalMapPixel);
addPipeline(
Key::Builder().withSpecular(),
modelVertex, modelSpecularMapPixel);
addPipeline(
Key::Builder().withTangents().withSpecular(),
modelNormalMapVertex, modelNormalSpecularMapPixel);
addPipeline(
Key::Builder().withTranslucent(),
modelVertex, modelTranslucentPixel);
// FIXME Ignore lightmap for translucents meshpart
addPipeline(
Key::Builder().withTranslucent().withLightmap(),
modelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withTangents().withTranslucent(),
modelNormalMapVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSpecular().withTranslucent(),
modelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withTangents().withSpecular().withTranslucent(),
modelNormalMapVertex, modelTranslucentPixel);
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);
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);
addPipeline(
Key::Builder().withSkinned().withTranslucent(),
skinModelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withTangents().withTranslucent(),
skinModelNormalMapVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withSpecular().withTranslucent(),
skinModelVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withSkinned().withTangents().withSpecular().withTranslucent(),
skinModelNormalMapVertex, modelTranslucentPixel);
addPipeline(
Key::Builder().withDepthOnly(),
modelShadowVertex, modelShadowPixel);
addPipeline(
Key::Builder().withSkinned().withDepthOnly(),
skinModelShadowVertex, modelShadowPixel);
}