125 lines
4.7 KiB
C++
Executable File
125 lines
4.7 KiB
C++
Executable File
//
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// KRParticleSystemNewtonian.cpp
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// Kraken Engine
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//
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// Copyright 2022 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KREngine-common.h"
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#include "KRParticleSystemNewtonian.h"
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#include "KRTexture.h"
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#include "KRContext.h"
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KRParticleSystemNewtonian::KRParticleSystemNewtonian(KRScene &scene, std::string name) : KRParticleSystem(scene, name)
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{
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m_particlesAbsoluteTime = 0.0f;
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}
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KRParticleSystemNewtonian::~KRParticleSystemNewtonian()
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{
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}
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std::string KRParticleSystemNewtonian::getElementName()
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{
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return "newtonian_particles";
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}
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void KRParticleSystemNewtonian::loadXML(tinyxml2::XMLElement *e)
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{
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KRParticleSystem::loadXML(e);
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}
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tinyxml2::XMLElement *KRParticleSystemNewtonian::saveXML( tinyxml2::XMLNode *parent)
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{
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tinyxml2::XMLElement *e = KRParticleSystem::saveXML(parent);
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return e;
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}
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AABB KRParticleSystemNewtonian::getBounds()
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{
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return AABB::Create(-Vector3::One(), Vector3::One(), getModelMatrix());
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}
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void KRParticleSystemNewtonian::physicsUpdate(float deltaTime)
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{
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KRParticleSystem::physicsUpdate(deltaTime);
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m_particlesAbsoluteTime += deltaTime;
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}
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bool KRParticleSystemNewtonian::hasPhysics()
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{
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return true;
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}
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void KRParticleSystemNewtonian::render(RenderInfo& ri) {
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if(m_lod_visible <= LOD_VISIBILITY_PRESTREAM) return;
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KRNode::render(ri);
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if(ri.renderPass == KRNode::RENDER_PASS_ADDITIVE_PARTICLES) {
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if(ri.viewport.visible(getBounds())) {
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// Enable z-buffer test
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GLDEBUG(glEnable(GL_DEPTH_TEST));
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GLDEBUG(glDepthRangef(0.0, 1.0));
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KRTexture *pParticleTexture = m_pContext->getTextureManager()->getTexture("flare");
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m_pContext->getTextureManager()->selectTexture(0, pParticleTexture, 0.0f, KRTexture::TEXTURE_USAGE_PARTICLE);
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int particle_count = 10000;
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PipelineInfo info{};
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std::string shader_name("dust_particle");
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info.shader_name = &shader_name;
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info.pCamera = ri.camera;
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info.point_lights = &ri.point_lights;
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info.directional_lights = &ri.directional_lights;
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info.spot_lights = &ri.spot_lights;
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info.renderPass = ri.renderPass;
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KRPipeline *pParticleShader = m_pContext->getPipelineManager()->getPipeline(*ri.surface, info);
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// Vector3 rim_color; Vector4 fade_color;
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if(getContext().getPipelineManager()->selectPipeline(*ri.surface, *ri.camera, pParticleShader, ri.viewport, getModelMatrix(), &ri.point_lights, &ri.directional_lights, &ri.spot_lights, 0, ri.renderPass, Vector3::Zero(), 0.0f, Vector4::Zero())) {
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pParticleShader->setUniform(KRPipeline::KRENGINE_UNIFORM_FLARE_SIZE, 1.0f);
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KRDataBlock index_data;
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m_pContext->getMeshManager()->bindVBO(ri.commandBuffer, m_pContext->getMeshManager()->getRandomParticles(), index_data, (1 << KRMesh::KRENGINE_ATTRIB_VERTEX) | (1 << KRMesh::KRENGINE_ATTRIB_TEXUVA), false, 1.0f
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#if KRENGINE_DEBUG_GPU_LABELS
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, "Newtonian Particles"
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#endif
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);
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GLDEBUG(glDrawArrays(GL_TRIANGLES, 0, particle_count*3));
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}
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}
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}
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}
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