265 lines
10 KiB
C++
Executable File
265 lines
10 KiB
C++
Executable File
//
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// KRModel.cpp
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// KREngine
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//
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// Copyright 2012 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 "KRModel.h"
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#include "KRContext.h"
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#include "KRMesh.h"
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#include "KRQuaternion.h"
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KRModel::KRModel(KRScene &scene, std::string instance_name, std::string model_name, std::string light_map, float lod_min_coverage, bool receives_shadow, bool faces_camera, KRVector3 rim_color, float rim_power) : KRNode(scene, instance_name) {
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m_lightMap = light_map;
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m_pLightMap = NULL;
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m_model_name = model_name;
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m_min_lod_coverage = lod_min_coverage;
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m_receivesShadow = receives_shadow;
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m_faces_camera = faces_camera;
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m_rim_color = rim_color;
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m_rim_power = rim_power;
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m_boundsCachedMat.c[0] = -1.0f;
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m_boundsCachedMat.c[1] = -1.0f;
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m_boundsCachedMat.c[2] = -1.0f;
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m_boundsCachedMat.c[3] = -1.0f;
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m_boundsCachedMat.c[4] = -1.0f;
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m_boundsCachedMat.c[5] = -1.0f;
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m_boundsCachedMat.c[6] = -1.0f;
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m_boundsCachedMat.c[7] = -1.0f;
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m_boundsCachedMat.c[8] = -1.0f;
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m_boundsCachedMat.c[9] = -1.0f;
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m_boundsCachedMat.c[10] = -1.0f;
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m_boundsCachedMat.c[11] = -1.0f;
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m_boundsCachedMat.c[12] = -1.0f;
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m_boundsCachedMat.c[13] = -1.0f;
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m_boundsCachedMat.c[14] = -1.0f;
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m_boundsCachedMat.c[15] = -1.0f;
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}
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KRModel::~KRModel() {
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}
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std::string KRModel::getElementName() {
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return "model";
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}
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tinyxml2::XMLElement *KRModel::saveXML( tinyxml2::XMLNode *parent)
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{
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tinyxml2::XMLElement *e = KRNode::saveXML(parent);
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e->SetAttribute("mesh", m_model_name.c_str());
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e->SetAttribute("light_map", m_lightMap.c_str());
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e->SetAttribute("lod_min_coverage", m_min_lod_coverage);
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e->SetAttribute("receives_shadow", m_receivesShadow ? "true" : "false");
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e->SetAttribute("faces_camera", m_faces_camera ? "true" : "false");
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m_rim_color.setXMLAttribute("rim_color", e, KRVector3::Zero());
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e->SetAttribute("rim_power", m_rim_power);
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return e;
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}
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void KRModel::setRimColor(const KRVector3 &rim_color)
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{
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m_rim_color = rim_color;
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}
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void KRModel::setRimPower(float rim_power)
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{
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m_rim_power = rim_power;
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}
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KRVector3 KRModel::getRimColor()
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{
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return m_rim_color;
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}
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float KRModel::getRimPower()
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{
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return m_rim_power;
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}
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void KRModel::setLightMap(const std::string &name)
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{
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m_lightMap = name;
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m_pLightMap = NULL;
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}
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std::string KRModel::getLightMap()
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{
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return m_lightMap;
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}
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void KRModel::loadModel() {
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if(m_models.size() == 0) {
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std::vector<KRMesh *> models = m_pContext->getMeshManager()->getModel(m_model_name.c_str()); // The model manager returns the LOD levels in sorted order, with the highest detail first
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unordered_map<KRMesh *, std::vector<KRBone *> > bones;
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if(models.size() > 0) {
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bool all_bones_found = true;
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for(std::vector<KRMesh *>::iterator model_itr = models.begin(); model_itr != models.end(); model_itr++) {
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KRMesh *model = *model_itr;
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std::vector<KRBone *> model_bones;
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int bone_count = model->getBoneCount();
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for(int bone_index=0; bone_index < bone_count; bone_index++) {
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KRBone *matching_bone = dynamic_cast<KRBone *>(getScene().getRootNode()->find<KRNode>(model->getBoneName(bone_index)));
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if(matching_bone) {
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model_bones.push_back(matching_bone);
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} else {
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all_bones_found = false; // Reject when there are any missing bones or multiple matches
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}
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}
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bones[model] = model_bones;
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}
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if(all_bones_found) {
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m_models = models;
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m_bones = bones;
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getScene().notify_sceneGraphModify(this);
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}
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invalidateBounds();
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}
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}
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}
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void KRModel::render(KRCamera *pCamera, std::vector<KRPointLight *> &point_lights, std::vector<KRDirectionalLight *> &directional_lights, std::vector<KRSpotLight *>&spot_lights, const KRViewport &viewport, KRNode::RenderPass renderPass) {
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if(m_lod_visible >= LOD_VISIBILITY_PRESTREAM && renderPass == KRNode::RENDER_PASS_PRESTREAM) {
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preStream(viewport);
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}
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if(m_lod_visible <= LOD_VISIBILITY_PRESTREAM) return;
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KRNode::render(pCamera, point_lights, directional_lights, spot_lights, viewport, renderPass);
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if(renderPass != KRNode::RENDER_PASS_DEFERRED_LIGHTS && renderPass != KRNode::RENDER_PASS_ADDITIVE_PARTICLES && renderPass != KRNode::RENDER_PASS_PARTICLE_OCCLUSION && renderPass != KRNode::RENDER_PASS_VOLUMETRIC_EFFECTS_ADDITIVE && renderPass != KRNode::RENDER_PASS_GENERATE_SHADOWMAPS && renderPass != KRNode::RENDER_PASS_PRESTREAM) {
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loadModel();
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if(m_models.size() > 0) {
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// Don't render meshes on second pass of the deferred lighting renderer, as only lights will be applied
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/*
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float lod_coverage = 0.0f;
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if(m_models.size() > 1) {
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lod_coverage = viewport.coverage(getBounds()); // This also checks the view frustrum culling
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} else if(viewport.visible(getBounds())) {
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lod_coverage = 1.0f;
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}
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*/
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float lod_coverage = viewport.coverage(getBounds()); // This also checks the view frustrum culling
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if(lod_coverage > m_min_lod_coverage) {
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// ---===--- Select the best LOD model based on screen coverage ---===---
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std::vector<KRMesh *>::iterator itr=m_models.begin();
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KRMesh *pModel = *itr++;
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while(itr != m_models.end()) {
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KRMesh *pLODModel = *itr++;
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if((float)pLODModel->getLODCoverage() / 100.0f > lod_coverage && pLODModel->getLODCoverage() < pModel->getLODCoverage()) {
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pModel = pLODModel;
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} else {
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break;
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}
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}
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if(m_pLightMap == NULL && m_lightMap.size()) {
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m_pLightMap = getContext().getTextureManager()->getTexture(m_lightMap);
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}
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if(m_pLightMap && pCamera->settings.bEnableLightMap && renderPass != RENDER_PASS_SHADOWMAP && renderPass != RENDER_PASS_GENERATE_SHADOWMAPS) {
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m_pContext->getTextureManager()->selectTexture(5, m_pLightMap, lod_coverage, KRTexture::TEXTURE_USAGE_LIGHT_MAP);
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}
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KRMat4 matModel = getModelMatrix();
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if(m_faces_camera) {
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KRVector3 model_center = KRMat4::Dot(matModel, KRVector3::Zero());
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KRVector3 camera_pos = viewport.getCameraPosition();
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matModel = KRQuaternion(KRVector3::Forward(), KRVector3::Normalize(camera_pos - model_center)).rotationMatrix() * matModel;
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}
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pModel->render(getName(), pCamera, point_lights, directional_lights, spot_lights, viewport, matModel, m_pLightMap, renderPass, m_bones[pModel], m_rim_color, m_rim_power, lod_coverage);
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}
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}
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}
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}
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void KRModel::preStream(const KRViewport &viewport)
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{
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loadModel();
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float lod_coverage = viewport.coverage(getBounds());
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for(auto itr = m_models.begin(); itr != m_models.end(); itr++) {
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(*itr)->preStream(lod_coverage);
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}
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if(m_pLightMap == NULL && m_lightMap.size()) {
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m_pLightMap = getContext().getTextureManager()->getTexture(m_lightMap);
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}
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if(m_pLightMap) {
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m_pLightMap->resetPoolExpiry(lod_coverage, KRTexture::TEXTURE_USAGE_LIGHT_MAP);
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}
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}
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kraken_stream_level KRModel::getStreamLevel(const KRViewport &viewport)
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{
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kraken_stream_level stream_level = KRNode::getStreamLevel(viewport);
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loadModel();
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for(auto itr = m_models.begin(); itr != m_models.end(); itr++) {
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stream_level = KRMIN(stream_level, (*itr)->getStreamLevel());
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}
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return stream_level;
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}
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KRAABB KRModel::getBounds() {
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loadModel();
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if(m_models.size() > 0) {
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if(m_faces_camera) {
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KRAABB normal_bounds = KRAABB(m_models[0]->getMinPoint(), m_models[0]->getMaxPoint(), getModelMatrix());
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float max_dimension = normal_bounds.longest_radius();
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return KRAABB(normal_bounds.center()-KRVector3(max_dimension), normal_bounds.center() + KRVector3(max_dimension));
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} else {
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if(!(m_boundsCachedMat == getModelMatrix())) {
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m_boundsCachedMat = getModelMatrix();
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m_boundsCached = KRAABB(m_models[0]->getMinPoint(), m_models[0]->getMaxPoint(), getModelMatrix());
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}
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return m_boundsCached;
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}
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} else {
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return KRAABB::Infinite();
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}
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}
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