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115 lines
4.2 KiB
C++
115 lines
4.2 KiB
C++
//
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// Created by Bradley Austin Davis on 2016/05/09
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// Copyright 2013 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 "RenderableShapeEntityItem.h"
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#include <glm/gtx/quaternion.hpp>
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#include <gpu/Batch.h>
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#include <DependencyManager.h>
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#include <GeometryCache.h>
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#include <PerfStat.h>
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#include <render-utils/simple_vert.h>
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#include <render-utils/simple_frag.h>
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// Sphere entities should fit inside a cube entity of the same size, so a sphere that has dimensions 1x1x1
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// is a half unit sphere. However, the geometry cache renders a UNIT sphere, so we need to scale down.
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static const float SPHERE_ENTITY_SCALE = 0.5f;
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static std::array<GeometryCache::Shape, entity::NUM_SHAPES> MAPPING { {
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GeometryCache::Triangle,
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GeometryCache::Quad,
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GeometryCache::Hexagon,
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GeometryCache::Octagon,
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GeometryCache::Circle,
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GeometryCache::Cube,
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GeometryCache::Sphere,
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GeometryCache::Tetrahedron,
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GeometryCache::Octahedron,
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GeometryCache::Dodecahedron,
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GeometryCache::Icosahedron,
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GeometryCache::Torus,
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GeometryCache::Cone,
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GeometryCache::Cylinder,
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} };
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RenderableShapeEntityItem::Pointer RenderableShapeEntityItem::baseFactory(const EntityItemID& entityID, const EntityItemProperties& properties) {
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Pointer entity = std::make_shared<RenderableShapeEntityItem>(entityID);
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entity->setProperties(properties);
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return entity;
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}
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EntityItemPointer RenderableShapeEntityItem::factory(const EntityItemID& entityID, const EntityItemProperties& properties) {
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return baseFactory(entityID, properties);
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}
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EntityItemPointer RenderableShapeEntityItem::boxFactory(const EntityItemID& entityID, const EntityItemProperties& properties) {
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auto result = baseFactory(entityID, properties);
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result->setShape(entity::Cube);
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return result;
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}
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EntityItemPointer RenderableShapeEntityItem::sphereFactory(const EntityItemID& entityID, const EntityItemProperties& properties) {
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auto result = baseFactory(entityID, properties);
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result->setShape(entity::Sphere);
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return result;
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}
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void RenderableShapeEntityItem::setUserData(const QString& value) {
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if (value != getUserData()) {
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ShapeEntityItem::setUserData(value);
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if (_procedural) {
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_procedural->parse(value);
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}
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}
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}
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void RenderableShapeEntityItem::render(RenderArgs* args) {
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PerformanceTimer perfTimer("RenderableShapeEntityItem::render");
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//Q_ASSERT(getType() == EntityTypes::Shape);
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Q_ASSERT(args->_batch);
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if (!_procedural) {
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_procedural.reset(new Procedural(getUserData()));
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_procedural->_vertexSource = simple_vert;
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_procedural->_fragmentSource = simple_frag;
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_procedural->_state->setCullMode(gpu::State::CULL_NONE);
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_procedural->_state->setDepthTest(true, true, gpu::LESS_EQUAL);
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_procedural->_state->setBlendFunction(false,
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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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gpu::Batch& batch = *args->_batch;
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glm::vec4 color(toGlm(getXColor()), getLocalRenderAlpha());
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bool success;
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Transform modelTransform = getTransformToCenter(success);
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if (!success) {
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return;
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}
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if (_shape == entity::Sphere) {
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modelTransform.postScale(SPHERE_ENTITY_SCALE);
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}
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batch.setModelTransform(modelTransform); // use a transform with scale, rotation, registration point and translation
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if (_procedural->ready()) {
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_procedural->prepare(batch, getPosition(), getDimensions(), getOrientation());
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auto outColor = _procedural->getColor(color);
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batch._glColor4f(outColor.r, outColor.g, outColor.b, outColor.a);
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DependencyManager::get<GeometryCache>()->renderShape(batch, MAPPING[_shape]);
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} else {
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// FIXME, support instanced multi-shape rendering using multidraw indirect
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DependencyManager::get<GeometryCache>()->renderSolidShapeInstance(batch, MAPPING[_shape], color);
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}
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static const auto triCount = DependencyManager::get<GeometryCache>()->getShapeTriangleCount(MAPPING[_shape]);
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args->_details._trianglesRendered += (int)triCount;
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}
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