mirror of
https://github.com/HifiExperiments/overte.git
synced 2025-08-09 06:29:30 +02:00
e418872f7b
also fixed some warnings, made code abide to standard, and moved some variables to be closer to where they're used
90 lines
4.4 KiB
C++
90 lines
4.4 KiB
C++
//
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// RenderableParticleEffectEntityItem.cpp
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// interface/src
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//
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// Created by Jason Rickwald on 3/2/15.
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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 <glm/gtx/quaternion.hpp>
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#include <gpu/GPUConfig.h>
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#include <DependencyManager.h>
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#include <DeferredLightingEffect.h>
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#include <PerfStat.h>
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#include <GeometryCache.h>
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#include "RenderableParticleEffectEntityItem.h"
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EntityItem* RenderableParticleEffectEntityItem::factory(const EntityItemID& entityID, const EntityItemProperties& properties) {
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return new RenderableParticleEffectEntityItem(entityID, properties);
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}
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RenderableParticleEffectEntityItem::RenderableParticleEffectEntityItem(const EntityItemID& entityItemID, const EntityItemProperties& properties) :
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ParticleEffectEntityItem(entityItemID, properties) {
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_cacheID = DependencyManager::get<GeometryCache>()->allocateID();
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}
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void RenderableParticleEffectEntityItem::render(RenderArgs* args) {
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PerformanceTimer perfTimer("RenderableParticleEffectEntityItem::render");
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assert(getType() == EntityTypes::ParticleEffect);
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float pa_rad = getParticleRadius();
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const float MAX_COLOR = 255.0f;
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glm::vec4 paColor(getColor()[RED_INDEX] / MAX_COLOR, getColor()[GREEN_INDEX] / MAX_COLOR,
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getColor()[BLUE_INDEX] / MAX_COLOR, getLocalRenderAlpha());
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// Right now we're just iterating over particles and rendering as a cross of four quads.
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// This is pretty dumb, it was quick enough to code up. Really, there should be many
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// rendering modes, including the all-important textured billboards.
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QVector<glm::vec3>* pointVec = new QVector<glm::vec3>(_paCount * VERTS_PER_PARTICLE);
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quint32 paIter = _paHead;
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while (_paLife[paIter] > 0.0f) {
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int j = paIter * XYZ_STRIDE;
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pointVec->append(glm::vec3(_paPosition[j] - pa_rad, _paPosition[j + 1] + pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] + pa_rad, _paPosition[j + 1] + pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] + pa_rad, _paPosition[j + 1] - pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] - pa_rad, _paPosition[j + 1] - pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] + pa_rad, _paPosition[j + 1] + pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] - pa_rad, _paPosition[j + 1] + pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] - pa_rad, _paPosition[j + 1] - pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j] + pa_rad, _paPosition[j + 1] - pa_rad, _paPosition[j + 2]));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] + pa_rad, _paPosition[j + 2] - pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] + pa_rad, _paPosition[j + 2] + pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] - pa_rad, _paPosition[j + 2] + pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] - pa_rad, _paPosition[j + 2] - pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] + pa_rad, _paPosition[j + 2] + pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] + pa_rad, _paPosition[j + 2] - pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] - pa_rad, _paPosition[j + 2] - pa_rad));
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pointVec->append(glm::vec3(_paPosition[j], _paPosition[j + 1] - pa_rad, _paPosition[j + 2] + pa_rad));
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paIter = (paIter + 1) % _maxParticles;
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}
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DependencyManager::get<GeometryCache>()->updateVertices(_cacheID, *pointVec, paColor);
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glPushMatrix();
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glm::vec3 position = getPosition();
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glTranslatef(position.x, position.y, position.z);
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glm::quat rotation = getRotation();
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glm::vec3 axis = glm::axis(rotation);
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glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
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glPushMatrix();
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glm::vec3 positionToCenter = getCenter() - position;
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glTranslatef(positionToCenter.x, positionToCenter.y, positionToCenter.z);
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DependencyManager::get<GeometryCache>()->renderVertices(gpu::QUADS, _cacheID);
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glPopMatrix();
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glPopMatrix();
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delete pointVec;
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};
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