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284 lines
12 KiB
C++
284 lines
12 KiB
C++
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//
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// RenderPipelines.cpp
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// render-utils/src/
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//
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// Created by Zach Pomerantz on 1/28/2016.
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// Copyright 2016 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include <gpu/Context.h>
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#include <gpu/StandardShaderLib.h>
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#include "DeferredLightingEffect.h"
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#include "TextureCache.h"
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#include "render/DrawTask.h"
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#include "model_vert.h"
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#include "model_shadow_vert.h"
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#include "model_normal_map_vert.h"
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#include "model_lightmap_vert.h"
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#include "model_lightmap_normal_map_vert.h"
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#include "skin_model_vert.h"
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#include "skin_model_shadow_vert.h"
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#include "skin_model_normal_map_vert.h"
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#include "model_frag.h"
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#include "model_unlit_frag.h"
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#include "model_shadow_frag.h"
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#include "model_normal_map_frag.h"
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#include "model_normal_specular_map_frag.h"
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#include "model_specular_map_frag.h"
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#include "model_lightmap_frag.h"
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#include "model_lightmap_normal_map_frag.h"
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#include "model_lightmap_normal_specular_map_frag.h"
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#include "model_lightmap_specular_map_frag.h"
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#include "model_translucent_frag.h"
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#include "model_translucent_unlit_frag.h"
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#include "overlay3D_vert.h"
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#include "overlay3D_frag.h"
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#include "overlay3D_translucent_frag.h"
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#include "overlay3D_unlit_frag.h"
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#include "overlay3D_translucent_unlit_frag.h"
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using namespace render;
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gpu::BufferView getDefaultMaterialBuffer() {
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model::Material::Schema schema;
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schema._albedo = vec3(1.0f);
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schema._opacity = 1.0f;
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schema._metallic = 0.1f;
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schema._roughness = 0.9f;
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return gpu::BufferView(std::make_shared<gpu::Buffer>(sizeof(model::Material::Schema), (const gpu::Byte*) &schema));
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}
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void batchSetter(const ShapePipeline& pipeline, gpu::Batch& batch) {
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// Set a default albedo map
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batch.setResourceTexture(render::ShapePipeline::Slot::MAP::ALBEDO,
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DependencyManager::get<TextureCache>()->getWhiteTexture());
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// Set a default normal map
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batch.setResourceTexture(render::ShapePipeline::Slot::MAP::NORMAL_FITTING,
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DependencyManager::get<TextureCache>()->getNormalFittingTexture());
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// Set a default material
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if (pipeline.locations->materialBufferUnit >= 0) {
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static const gpu::BufferView OPAQUE_SCHEMA_BUFFER = getDefaultMaterialBuffer();
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batch.setUniformBuffer(ShapePipeline::Slot::BUFFER::MATERIAL, OPAQUE_SCHEMA_BUFFER);
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}
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}
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void lightBatchSetter(const ShapePipeline& pipeline, gpu::Batch& batch) {
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batchSetter(pipeline, batch);
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// Set the light
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if (pipeline.locations->lightBufferUnit >= 0) {
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DependencyManager::get<DeferredLightingEffect>()->setupKeyLightBatch(batch,
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pipeline.locations->lightBufferUnit,
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pipeline.locations->lightAmbientMapUnit);
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}
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}
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void initOverlay3DPipelines(ShapePlumber& plumber) {
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auto vertex = gpu::Shader::createVertex(std::string(overlay3D_vert));
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auto pixel = gpu::Shader::createPixel(std::string(overlay3D_frag));
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auto pixelTranslucent = gpu::Shader::createPixel(std::string(overlay3D_translucent_frag));
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auto pixelUnlit = gpu::Shader::createPixel(std::string(overlay3D_unlit_frag));
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auto pixelTranslucentUnlit = gpu::Shader::createPixel(std::string(overlay3D_translucent_unlit_frag));
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auto opaqueProgram = gpu::Shader::createProgram(vertex, pixel);
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auto translucentProgram = gpu::Shader::createProgram(vertex, pixelTranslucent);
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auto unlitOpaqueProgram = gpu::Shader::createProgram(vertex, pixelUnlit);
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auto unlitTranslucentProgram = gpu::Shader::createProgram(vertex, pixelTranslucentUnlit);
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for (int i = 0; i < 8; i++) {
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bool isCulled = (i & 1);
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bool isBiased = (i & 2);
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bool isOpaque = (i & 4);
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auto state = std::make_shared<gpu::State>();
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state->setDepthTest(false);
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state->setCullMode(isCulled ? gpu::State::CULL_BACK : gpu::State::CULL_NONE);
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if (isBiased) {
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state->setDepthBias(1.0f);
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state->setDepthBiasSlopeScale(1.0f);
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}
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if (isOpaque) {
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// Soft edges
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state->setBlendFunction(true,
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gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
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} else {
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state->setBlendFunction(true,
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gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
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gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
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}
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ShapeKey::Filter::Builder builder;
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isCulled ? builder.withCullFace() : builder.withoutCullFace();
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isBiased ? builder.withDepthBias() : builder.withoutDepthBias();
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isOpaque ? builder.withOpaque() : builder.withTranslucent();
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auto simpleProgram = isOpaque ? opaqueProgram : translucentProgram;
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auto unlitProgram = isOpaque ? unlitOpaqueProgram : unlitTranslucentProgram;
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plumber.addPipeline(builder.withoutUnlit().build(), simpleProgram, state, &lightBatchSetter);
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plumber.addPipeline(builder.withUnlit().build(), unlitProgram, state, &batchSetter);
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}
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}
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void initDeferredPipelines(render::ShapePlumber& plumber) {
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using Key = render::ShapeKey;
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using ShaderPointer = gpu::ShaderPointer;
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auto addPipeline = [&plumber](const Key& key, const ShaderPointer& vertexShader, const ShaderPointer& pixelShader) {
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// These keyvalues' pipelines will be added by this lamdba in addition to the key passed
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assert(!key.isWireFrame());
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assert(!key.isDepthBiased());
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assert(key.isCullFace());
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ShaderPointer program = gpu::Shader::createProgram(vertexShader, pixelShader);
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for (int i = 0; i < 8; i++) {
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bool isCulled = (i & 1);
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bool isBiased = (i & 2);
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bool isWireframed = (i & 4);
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ShapeKey::Builder builder(key);
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auto state = std::make_shared<gpu::State>();
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// Depth test depends on transparency
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state->setDepthTest(true, !key.isTranslucent(), gpu::LESS_EQUAL);
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state->setBlendFunction(key.isTranslucent(),
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gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
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gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
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if (!isCulled) {
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builder.withoutCullFace();
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}
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state->setCullMode(isCulled ? gpu::State::CULL_BACK : gpu::State::CULL_NONE);
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if (isWireframed) {
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builder.withWireframe();
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state->setFillMode(gpu::State::FILL_LINE);
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}
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if (isBiased) {
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builder.withDepthBias();
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state->setDepthBias(1.0f);
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state->setDepthBiasSlopeScale(1.0f);
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}
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plumber.addPipeline(builder.build(), program, state,
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key.isTranslucent() ? &lightBatchSetter : &batchSetter);
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}
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};
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// Vertex shaders
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auto modelVertex = gpu::Shader::createVertex(std::string(model_vert));
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auto modelNormalMapVertex = gpu::Shader::createVertex(std::string(model_normal_map_vert));
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auto modelLightmapVertex = gpu::Shader::createVertex(std::string(model_lightmap_vert));
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auto modelLightmapNormalMapVertex = gpu::Shader::createVertex(std::string(model_lightmap_normal_map_vert));
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auto modelShadowVertex = gpu::Shader::createVertex(std::string(model_shadow_vert));
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auto skinModelVertex = gpu::Shader::createVertex(std::string(skin_model_vert));
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auto skinModelNormalMapVertex = gpu::Shader::createVertex(std::string(skin_model_normal_map_vert));
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auto skinModelShadowVertex = gpu::Shader::createVertex(std::string(skin_model_shadow_vert));
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// Pixel shaders
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auto modelPixel = gpu::Shader::createPixel(std::string(model_frag));
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auto modelUnlitPixel = gpu::Shader::createPixel(std::string(model_unlit_frag));
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auto modelNormalMapPixel = gpu::Shader::createPixel(std::string(model_normal_map_frag));
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auto modelSpecularMapPixel = gpu::Shader::createPixel(std::string(model_specular_map_frag));
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auto modelNormalSpecularMapPixel = gpu::Shader::createPixel(std::string(model_normal_specular_map_frag));
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auto modelTranslucentPixel = gpu::Shader::createPixel(std::string(model_translucent_frag));
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auto modelTranslucentUnlitPixel = gpu::Shader::createPixel(std::string(model_translucent_unlit_frag));
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auto modelShadowPixel = gpu::Shader::createPixel(std::string(model_shadow_frag));
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auto modelLightmapPixel = gpu::Shader::createPixel(std::string(model_lightmap_frag));
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auto modelLightmapNormalMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_normal_map_frag));
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auto modelLightmapSpecularMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_specular_map_frag));
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auto modelLightmapNormalSpecularMapPixel = gpu::Shader::createPixel(std::string(model_lightmap_normal_specular_map_frag));
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// TODO: Refactor this to use a filter
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// Opaques
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addPipeline(
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Key::Builder(),
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modelVertex, modelPixel);
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addPipeline(
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Key::Builder().withUnlit(),
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modelVertex, modelUnlitPixel);
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addPipeline(
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Key::Builder().withTangents(),
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modelNormalMapVertex, modelNormalMapPixel);
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addPipeline(
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Key::Builder().withSpecular(),
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modelVertex, modelSpecularMapPixel);
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addPipeline(
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Key::Builder().withTangents().withSpecular(),
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modelNormalMapVertex, modelNormalSpecularMapPixel);
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// Translucents
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addPipeline(
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Key::Builder().withTranslucent(),
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modelVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withTranslucent().withUnlit(),
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modelVertex, modelTranslucentUnlitPixel);
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addPipeline(
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Key::Builder().withTranslucent().withTangents(),
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modelNormalMapVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withTranslucent().withSpecular(),
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modelVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withTranslucent().withTangents().withSpecular(),
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modelNormalMapVertex, modelTranslucentPixel);
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addPipeline(
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// FIXME: Ignore lightmap for translucents meshpart
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Key::Builder().withTranslucent().withLightmap(),
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modelVertex, modelTranslucentPixel);
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// Lightmapped
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addPipeline(
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Key::Builder().withLightmap(),
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modelLightmapVertex, modelLightmapPixel);
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addPipeline(
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Key::Builder().withLightmap().withTangents(),
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modelLightmapNormalMapVertex, modelLightmapNormalMapPixel);
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addPipeline(
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Key::Builder().withLightmap().withSpecular(),
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modelLightmapVertex, modelLightmapSpecularMapPixel);
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addPipeline(
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Key::Builder().withLightmap().withTangents().withSpecular(),
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modelLightmapNormalMapVertex, modelLightmapNormalSpecularMapPixel);
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// Skinned
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addPipeline(
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Key::Builder().withSkinned(),
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skinModelVertex, modelPixel);
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addPipeline(
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Key::Builder().withSkinned().withTangents(),
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skinModelNormalMapVertex, modelNormalMapPixel);
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addPipeline(
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Key::Builder().withSkinned().withSpecular(),
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skinModelVertex, modelSpecularMapPixel);
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addPipeline(
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Key::Builder().withSkinned().withTangents().withSpecular(),
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skinModelNormalMapVertex, modelNormalSpecularMapPixel);
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// Skinned and Translucent
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addPipeline(
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Key::Builder().withSkinned().withTranslucent(),
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skinModelVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withSkinned().withTranslucent().withTangents(),
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skinModelNormalMapVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withSkinned().withTranslucent().withSpecular(),
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skinModelVertex, modelTranslucentPixel);
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addPipeline(
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Key::Builder().withSkinned().withTranslucent().withTangents().withSpecular(),
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skinModelNormalMapVertex, modelTranslucentPixel);
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// Depth-only
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addPipeline(
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Key::Builder().withDepthOnly(),
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modelShadowVertex, modelShadowPixel);
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addPipeline(
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Key::Builder().withSkinned().withDepthOnly(),
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skinModelShadowVertex, modelShadowPixel);
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}
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