401 lines
12 KiB
C++
Executable File
401 lines
12 KiB
C++
Executable File
//
|
|
// KRModel.cpp
|
|
// Kraken Engine
|
|
//
|
|
// Copyright 2025 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 "KRModel.h"
|
|
#include "KRContext.h"
|
|
#include "resources/mesh/KRMesh.h"
|
|
#include "KRNode.h"
|
|
#include "KRRenderPass.h"
|
|
|
|
using namespace hydra;
|
|
|
|
/* static */
|
|
void KRModel::InitNodeInfo(KrNodeInfo* nodeInfo)
|
|
{
|
|
KRNode::InitNodeInfo(nodeInfo);
|
|
nodeInfo->model.faces_camera = false;
|
|
nodeInfo->model.light_map_texture = KR_NULL_HANDLE;
|
|
nodeInfo->model.lod_min_coverage = 0.0f;
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
nodeInfo->model.mesh[lod] = KR_NULL_HANDLE;
|
|
}
|
|
nodeInfo->model.receives_shadow = true;
|
|
nodeInfo->model.rim_color = Vector3::Zero();
|
|
nodeInfo->model.rim_power = 0.0f;
|
|
}
|
|
|
|
KRModel::KRModel(KRScene& scene, std::string name)
|
|
: KRNode(scene, name)
|
|
, m_min_lod_coverage(0.0f)
|
|
, m_receivesShadow(true)
|
|
, m_faces_camera(false)
|
|
, m_rim_color(Vector3::Zero())
|
|
, m_rim_power(0.0f)
|
|
{
|
|
m_boundsCachedMat.c[0] = -1.0f;
|
|
m_boundsCachedMat.c[1] = -1.0f;
|
|
m_boundsCachedMat.c[2] = -1.0f;
|
|
m_boundsCachedMat.c[3] = -1.0f;
|
|
m_boundsCachedMat.c[4] = -1.0f;
|
|
m_boundsCachedMat.c[5] = -1.0f;
|
|
m_boundsCachedMat.c[6] = -1.0f;
|
|
m_boundsCachedMat.c[7] = -1.0f;
|
|
m_boundsCachedMat.c[8] = -1.0f;
|
|
m_boundsCachedMat.c[9] = -1.0f;
|
|
m_boundsCachedMat.c[10] = -1.0f;
|
|
m_boundsCachedMat.c[11] = -1.0f;
|
|
m_boundsCachedMat.c[12] = -1.0f;
|
|
m_boundsCachedMat.c[13] = -1.0f;
|
|
m_boundsCachedMat.c[14] = -1.0f;
|
|
m_boundsCachedMat.c[15] = -1.0f;
|
|
}
|
|
|
|
KRModel::KRModel(KRScene& scene, std::string instance_name, std::string model_name[kMeshLODCount], std::string light_map, float lod_min_coverage, bool receives_shadow, bool faces_camera, Vector3 rim_color, float rim_power)
|
|
: KRNode(scene, instance_name)
|
|
{
|
|
m_lightMap.set(light_map);
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
m_meshes[lod].set(model_name[lod]);
|
|
}
|
|
m_min_lod_coverage = lod_min_coverage;
|
|
m_receivesShadow = receives_shadow;
|
|
m_faces_camera = faces_camera;
|
|
m_rim_color = rim_color;
|
|
m_rim_power = rim_power;
|
|
|
|
m_boundsCachedMat.c[0] = -1.0f;
|
|
m_boundsCachedMat.c[1] = -1.0f;
|
|
m_boundsCachedMat.c[2] = -1.0f;
|
|
m_boundsCachedMat.c[3] = -1.0f;
|
|
m_boundsCachedMat.c[4] = -1.0f;
|
|
m_boundsCachedMat.c[5] = -1.0f;
|
|
m_boundsCachedMat.c[6] = -1.0f;
|
|
m_boundsCachedMat.c[7] = -1.0f;
|
|
m_boundsCachedMat.c[8] = -1.0f;
|
|
m_boundsCachedMat.c[9] = -1.0f;
|
|
m_boundsCachedMat.c[10] = -1.0f;
|
|
m_boundsCachedMat.c[11] = -1.0f;
|
|
m_boundsCachedMat.c[12] = -1.0f;
|
|
m_boundsCachedMat.c[13] = -1.0f;
|
|
m_boundsCachedMat.c[14] = -1.0f;
|
|
m_boundsCachedMat.c[15] = -1.0f;
|
|
}
|
|
|
|
KRModel::~KRModel()
|
|
{
|
|
|
|
}
|
|
|
|
KrResult KRModel::update(const KrNodeInfo* nodeInfo)
|
|
{
|
|
KrResult res = KRNode::update(nodeInfo);
|
|
if (res != KR_SUCCESS) {
|
|
return res;
|
|
}
|
|
m_faces_camera = nodeInfo->model.faces_camera;
|
|
m_min_lod_coverage = nodeInfo->model.lod_min_coverage;
|
|
m_receivesShadow = nodeInfo->model.receives_shadow;
|
|
m_rim_color = nodeInfo->model.rim_color;
|
|
m_rim_power = nodeInfo->model.rim_power;
|
|
|
|
KRTexture* light_map_texture = nullptr;
|
|
if (nodeInfo->model.light_map_texture != KR_NULL_HANDLE) {
|
|
res = m_pContext->getMappedResource<KRTexture>(nodeInfo->model.light_map_texture, &light_map_texture);
|
|
if (res != KR_SUCCESS) {
|
|
return res;
|
|
}
|
|
}
|
|
m_lightMap.set(light_map_texture);
|
|
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
KRMesh* mesh = nullptr;
|
|
if (nodeInfo->model.mesh[lod] != KR_NULL_HANDLE) {
|
|
res = m_pContext->getMappedResource<KRMesh>(nodeInfo->model.mesh[lod], &mesh);
|
|
if (res != KR_SUCCESS) {
|
|
return res;
|
|
}
|
|
}
|
|
m_meshes[lod].set(mesh);
|
|
}
|
|
|
|
return KR_SUCCESS;
|
|
}
|
|
|
|
std::string KRModel::getElementName()
|
|
{
|
|
return "model";
|
|
}
|
|
|
|
tinyxml2::XMLElement* KRModel::saveXML(tinyxml2::XMLNode* parent)
|
|
{
|
|
tinyxml2::XMLElement* e = KRNode::saveXML(parent);
|
|
e->SetAttribute("mesh", m_meshes[0].getName().c_str());
|
|
for (int lod = 1; lod < kMeshLODCount; lod++) {
|
|
char attribName[8];
|
|
snprintf(attribName, 8, "mesh%i", lod);
|
|
e->SetAttribute(attribName, m_meshes[lod].getName().c_str());
|
|
}
|
|
e->SetAttribute("light_map", m_lightMap.getName().c_str());
|
|
e->SetAttribute("lod_min_coverage", m_min_lod_coverage);
|
|
e->SetAttribute("receives_shadow", m_receivesShadow ? "true" : "false");
|
|
e->SetAttribute("faces_camera", m_faces_camera ? "true" : "false");
|
|
kraken::setXMLAttribute("rim_color", e, m_rim_color, Vector3::Zero());
|
|
e->SetAttribute("rim_power", m_rim_power);
|
|
return e;
|
|
}
|
|
|
|
void KRModel::setRimColor(const Vector3& rim_color)
|
|
{
|
|
m_rim_color = rim_color;
|
|
}
|
|
|
|
void KRModel::setRimPower(float rim_power)
|
|
{
|
|
m_rim_power = rim_power;
|
|
}
|
|
|
|
Vector3 KRModel::getRimColor()
|
|
{
|
|
return m_rim_color;
|
|
}
|
|
|
|
float KRModel::getRimPower()
|
|
{
|
|
return m_rim_power;
|
|
}
|
|
|
|
void KRModel::setLightMap(const std::string& name)
|
|
{
|
|
m_lightMap.set(name);
|
|
}
|
|
|
|
std::string KRModel::getLightMap()
|
|
{
|
|
return m_lightMap.getName();
|
|
}
|
|
|
|
void KRModel::loadModel()
|
|
{
|
|
bool meshChanged = false;
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
KRMesh* prevMesh = nullptr;
|
|
prevMesh = m_meshes[lod].get();
|
|
m_meshes[lod].bind(&getContext());
|
|
if (m_meshes[lod].get() != prevMesh) {
|
|
meshChanged = true;
|
|
}
|
|
if (m_meshes[lod].isBound()) {
|
|
KRMesh* model = m_meshes[lod].get();
|
|
std::vector<KRBone*> model_bones;
|
|
int bone_count = model->getBoneCount();
|
|
bool all_bones_found = true;
|
|
for (int bone_index = 0; bone_index < bone_count; bone_index++) {
|
|
KRBone* matching_bone = dynamic_cast<KRBone*>(getScene().getRootNode()->find<KRNode>(model->getBoneName(bone_index)));
|
|
if (matching_bone) {
|
|
model_bones.push_back(matching_bone);
|
|
} else {
|
|
all_bones_found = false; // Reject when there are any missing bones or multiple matches
|
|
}
|
|
}
|
|
if (all_bones_found) {
|
|
if (m_bones[lod] != model_bones) {
|
|
m_bones[lod] = model_bones;
|
|
meshChanged = true;
|
|
}
|
|
} else {
|
|
if (!m_bones[lod].empty()) {
|
|
m_bones[lod].clear();
|
|
meshChanged = true;
|
|
}
|
|
}
|
|
} else {
|
|
if (!m_bones[lod].empty()) {
|
|
m_bones[lod].clear();
|
|
meshChanged = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (meshChanged) {
|
|
getScene().notify_sceneGraphModify(this);
|
|
invalidateBounds();
|
|
}
|
|
}
|
|
|
|
void KRModel::render(KRNode::RenderInfo& ri)
|
|
{
|
|
KRNode::render(ri);
|
|
|
|
// Don't render meshes on second pass of the deferred lighting renderer, as only lights will be applied
|
|
if (ri.renderPass->getType() != RenderPassType::RENDER_PASS_DEFERRED_LIGHTS
|
|
&& ri.renderPass->getType() != RenderPassType::RENDER_PASS_ADDITIVE_PARTICLES
|
|
&& ri.renderPass->getType() != RenderPassType::RENDER_PASS_PARTICLE_OCCLUSION
|
|
&& ri.renderPass->getType()!= RenderPassType::RENDER_PASS_VOLUMETRIC_EFFECTS_ADDITIVE
|
|
&& ri.renderPass->getType() != RenderPassType::RENDER_PASS_SHADOWMAP) {
|
|
|
|
/*
|
|
float lod_coverage = 0.0f;
|
|
if(m_models.size() > 1) {
|
|
lod_coverage = viewport.coverage(getBounds()); // This also checks the view frustrum culling
|
|
} else if(viewport.visible(getBounds())) {
|
|
lod_coverage = 1.0f;
|
|
}
|
|
*/
|
|
|
|
float lod_coverage = ri.viewport->coverage(getBounds()); // This also checks the view frustrum culling
|
|
if (lod_coverage > m_min_lod_coverage) {
|
|
// ---===--- Select the best LOD model based on screen coverage ---===---
|
|
int bestLOD = -1;
|
|
KRMesh* pModel = nullptr;
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
if (m_meshes[lod].isBound()) {
|
|
KRMesh* pLODModel = m_meshes[lod].get();
|
|
|
|
if ((float)pLODModel->getLODCoverage() / 100.0f > lod_coverage) {
|
|
if(bestLOD == -1 || pLODModel->getLODCoverage() < pModel->getLODCoverage()) {
|
|
pModel = pLODModel;
|
|
bestLOD = lod;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
if (m_lightMap.isBound() && ri.camera->settings.bEnableLightMap && ri.renderPass->getType() != RENDER_PASS_SHADOWMAP && ri.renderPass->getType() != RENDER_PASS_SHADOWMAP) {
|
|
m_lightMap.get()->resetPoolExpiry(lod_coverage, KRTexture::TEXTURE_USAGE_LIGHT_MAP);
|
|
// TODO - Vulkan refactoring. We need to bind the shadow map in KRMesh::Render
|
|
// m_pContext->getTextureManager()->selectTexture(5, m_pLightMap, lod_coverage, KRTexture::TEXTURE_USAGE_LIGHT_MAP);
|
|
}
|
|
|
|
if (pModel) {
|
|
Matrix4 matModel = getModelMatrix();
|
|
if (m_faces_camera) {
|
|
Vector3 model_center = Matrix4::Dot(matModel, Vector3::Zero());
|
|
Vector3 camera_pos = ri.viewport->getCameraPosition();
|
|
matModel = Quaternion::Create(Vector3::Forward(), Vector3::Normalize(camera_pos - model_center)).rotationMatrix() * matModel;
|
|
}
|
|
|
|
pModel->render(ri, getName(), matModel, m_lightMap.get(), m_bones[bestLOD], lod_coverage);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void KRModel::preStream(const KRViewport& viewport)
|
|
{
|
|
KRNode::preStream(viewport);
|
|
m_lightMap.bind(&getContext());
|
|
loadModel();
|
|
float lod_coverage = viewport.coverage(getBounds());
|
|
|
|
for (int i = 0; i < kMeshLODCount; i++) {
|
|
if (m_meshes[i].isBound()) {
|
|
m_meshes[i].get()->preStream(lod_coverage);
|
|
}
|
|
}
|
|
|
|
m_lightMap.bind(&getContext());
|
|
|
|
if (m_lightMap.isBound()) {
|
|
m_lightMap.get()->resetPoolExpiry(lod_coverage, KRTexture::TEXTURE_USAGE_LIGHT_MAP);
|
|
}
|
|
}
|
|
|
|
|
|
kraken_stream_level KRModel::getStreamLevel(const KRViewport& viewport)
|
|
{
|
|
kraken_stream_level stream_level = KRNode::getStreamLevel(viewport);
|
|
|
|
loadModel();
|
|
|
|
for (int lod = 0; lod < kMeshLODCount; lod++) {
|
|
if (m_meshes[lod].isBound()) {
|
|
stream_level = KRMIN(stream_level, m_meshes[lod].get()->getStreamLevel());
|
|
}
|
|
}
|
|
|
|
return stream_level;
|
|
}
|
|
|
|
AABB KRModel::getBounds()
|
|
{
|
|
loadModel();
|
|
|
|
// Get the bounds of the lowest lod mesh
|
|
for(int lod=0; lod<kMeshLODCount; lod++) {
|
|
if (!m_meshes[lod].isBound()) {
|
|
continue;
|
|
}
|
|
KRMesh* mesh = m_meshes[lod].get();
|
|
if (m_faces_camera) {
|
|
AABB normal_bounds = AABB::Create(mesh->getMinPoint(), mesh->getMaxPoint(), getModelMatrix());
|
|
float max_dimension = normal_bounds.longest_radius();
|
|
return AABB::Create(normal_bounds.center() - Vector3::Create(max_dimension), normal_bounds.center() + Vector3::Create(max_dimension));
|
|
} else {
|
|
if (!(m_boundsCachedMat == getModelMatrix())) {
|
|
m_boundsCachedMat = getModelMatrix();
|
|
m_boundsCached = AABB::Create(mesh->getMinPoint(), mesh->getMaxPoint(), getModelMatrix());
|
|
}
|
|
return m_boundsCached;
|
|
}
|
|
}
|
|
|
|
// No models loaded
|
|
return AABB::Infinite();
|
|
}
|
|
|
|
|
|
bool KRModel::getShaderValue(ShaderValue value, hydra::Vector3* output) const
|
|
{
|
|
switch (value) {
|
|
case ShaderValue::rim_color:
|
|
*output = m_rim_color;
|
|
return true;
|
|
}
|
|
return KRNode::getShaderValue(value, output);
|
|
}
|
|
|
|
bool KRModel::getShaderValue(ShaderValue value, float* output) const
|
|
{
|
|
switch (value) {
|
|
case ShaderValue::rim_power:
|
|
*output = m_rim_power;
|
|
return true;
|
|
}
|
|
return KRNode::getShaderValue(value, output);
|
|
}
|
|
|
|
|