Files
kraken/kraken/KRParticleSystemNewtonian.cpp
kearwood 40024ed9d8 Added KRMeshManager::KRENGINE_VBO_DATA_RANDOM_PARTICLES and KRMeshManager::KRENGINE_VBO_DATA_VOLUMETRIC_LIGHTING.
The random particle and volumetric lighting plane geometry is now static, computed on initialization, and no longer lazily initialized.
Removed KRMeshManager::bindVBO function overload that accepted KRDataBlock's directly for index and vertex data.  This was creating KRVBOData objects with KRVBOData::IMMEDIATE that were no longer being owned or de-allocated by KRMeshManager.
2022-07-29 00:51:01 -07:00

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Executable File

//
// KRParticleSystemNewtonian.cpp
// Kraken Engine
//
// Copyright 2022 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#include "KREngine-common.h"
#include "KRParticleSystemNewtonian.h"
#include "KRTexture.h"
#include "KRContext.h"
KRParticleSystemNewtonian::KRParticleSystemNewtonian(KRScene &scene, std::string name) : KRParticleSystem(scene, name)
{
m_particlesAbsoluteTime = 0.0f;
}
KRParticleSystemNewtonian::~KRParticleSystemNewtonian()
{
}
std::string KRParticleSystemNewtonian::getElementName()
{
return "newtonian_particles";
}
void KRParticleSystemNewtonian::loadXML(tinyxml2::XMLElement *e)
{
KRParticleSystem::loadXML(e);
}
tinyxml2::XMLElement *KRParticleSystemNewtonian::saveXML( tinyxml2::XMLNode *parent)
{
tinyxml2::XMLElement *e = KRParticleSystem::saveXML(parent);
return e;
}
AABB KRParticleSystemNewtonian::getBounds()
{
return AABB::Create(-Vector3::One(), Vector3::One(), getModelMatrix());
}
void KRParticleSystemNewtonian::physicsUpdate(float deltaTime)
{
KRParticleSystem::physicsUpdate(deltaTime);
m_particlesAbsoluteTime += deltaTime;
}
bool KRParticleSystemNewtonian::hasPhysics()
{
return true;
}
void KRParticleSystemNewtonian::render(RenderInfo& ri) {
if(m_lod_visible <= LOD_VISIBILITY_PRESTREAM) return;
KRNode::render(ri);
if(ri.renderPass == KRNode::RENDER_PASS_ADDITIVE_PARTICLES) {
if(ri.viewport.visible(getBounds())) {
KRTexture *pParticleTexture = m_pContext->getTextureManager()->getTexture("flare");
m_pContext->getTextureManager()->selectTexture(0, pParticleTexture, 0.0f, KRTexture::TEXTURE_USAGE_PARTICLE);
int particle_count = 10000;
PipelineInfo info{};
std::string shader_name("dust_particle");
info.shader_name = &shader_name;
info.pCamera = ri.camera;
info.point_lights = &ri.point_lights;
info.directional_lights = &ri.directional_lights;
info.spot_lights = &ri.spot_lights;
info.renderPass = ri.renderPass;
info.rasterMode = RasterMode::kAdditive;
info.cullMode = CullMode::kCullNone;
info.vertexAttributes = (1 << KRMesh::KRENGINE_ATTRIB_VERTEX) | (1 << KRMesh::KRENGINE_ATTRIB_TEXUVA);
info.modelFormat = ModelFormat::KRENGINE_MODEL_FORMAT_TRIANGLES;
KRPipeline *pParticleShader = m_pContext->getPipelineManager()->getPipeline(*ri.surface, info);
pParticleShader->setUniform(KRPipeline::KRENGINE_UNIFORM_FLARE_SIZE, 1.0f);
pParticleShader->bind(ri.commandBuffer, *ri.camera, ri.viewport, getModelMatrix(), &ri.point_lights, &ri.directional_lights, &ri.spot_lights, ri.renderPass);
m_pContext->getMeshManager()->bindVBO(ri.commandBuffer, &m_pContext->getMeshManager()->KRENGINE_VBO_DATA_RANDOM_PARTICLES, 1.0f);
vkCmdDraw(ri.commandBuffer, particle_count * 3, 1, 0, 0);
}
}
}