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switch portal render order on keypress + independent rendering
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@dimateos
dimateos committed Sep 12, 2020
1 parent 7585e4c commit d5b1c0b
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Showing 2 changed files with 64 additions and 26 deletions.
77 changes: 52 additions & 25 deletions VisualStudio/Src/LogicScenes/SampleScene.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -230,10 +230,10 @@ bool SampleScene::init() {
bPortalFramesBot_->translate(2.0f * -Transformation::BASE_UP * separation);

//RED PORTAL (mostly copies)
rPortalPanelRT_ = new RenderTarget();
rPortalPanelRT_->create(screenVP_);
rPortalRT_ = new RenderTarget();
rPortalRT_->create(postProcessVP_);
rPortalTex_ = new Texture();
rPortalTex_->createRenderTargetTexture(rPortalPanelRT_);
rPortalTex_->createRenderTargetTexture(rPortalRT_);
rPortalMat_ = new SolidMaterial(glm::vec3(1.0f), rPortalTex_);
rPortalMat_->option_ = 1;

Expand Down Expand Up @@ -392,6 +392,21 @@ bool SampleScene::init() {
rPortalCam_->setFather(bPortalRoot_);
rPortalCam_->setDrawingAxis(false);

//ASSING PORTAL DATA
bData_.cam_ = bPortalCam_;
bData_.mat_ = bPortalMat_;
bData_.rt_ = bPortalRT_;
bData_.root_ = bPortalRoot_;
bData_.surface_ = bPortalSurface_;
firstData_ = &bData_;

rData_.cam_ = rPortalCam_;
rData_.mat_ = rPortalMat_;
rData_.rt_ = rPortalRT_;
rData_.root_ = rPortalRoot_;
rData_.surface_ = rPortalSurface_;
secondData_ = &rData_;

return true;
}

Expand Down Expand Up @@ -543,6 +558,18 @@ bool SampleScene::handleEvent(SDL_Event const & e) {
recMode_ = recMode_ == MAPPREV ? STANDARD : MAPPREV;
printf("PORTAL - render rec set to [%s]\n", recMode_ == STANDARD ? "STANDARD" : "MAPPREV");
}
else if (key == SDLK_9) {
if (firstData_ == &bData_) {
firstData_ = &rData_;
secondData_ = &bData_;
}
else {
firstData_ = &bData_;
secondData_ = &rData_;
}
printf("PORTAL - render order set to first [%s]\n", firstData_ == &bData_ ? "BLUE" : "RED");
}

}

//start/stop controling the portal to move/rotate it locally
Expand Down Expand Up @@ -752,15 +779,15 @@ void SampleScene::updatePortalCamerasTrans() {
//cam matrix by inverse of portal matrix
//set position and rotation (decomposed from matrices atm) - ignoring scale atm
//just set local cause atm the red portal cam is already child of blue portal
rPortalCam_->setLocalTrans(Transformation::getDescomposed(rPortalRoot_->getModelMatrix_Inversed() * cam_->getModelMatrix()));
secondData_->cam_->setLocalTrans(Transformation::getDescomposed(secondData_->root_->getModelMatrix_Inversed() * cam_->getModelMatrix()));

//calculate recursion positions and rotations - for just 1 portal atm
glm::mat4 camMat = cam_->getModelMatrix(), portalMat_inv = bPortalRoot_->getModelMatrix_Inversed(), portalMat_base = rPortalRoot_->getModelMatrix();
glm::mat4 camMat = cam_->getModelMatrix(), portalMat_inv = firstData_->root_->getModelMatrix_Inversed(), portalMat_base = secondData_->root_->getModelMatrix();

//first recursion (last recursive trans) is the base one
glm::mat4 combinedTrans = portalMat_inv * camMat;
recTrans_[recLimit_ - 1] = Transformation::getDescomposed(combinedTrans);
bPortalCam_->setLocalTrans(recTrans_[recLimit_ - 1]);
firstData_->cam_->setLocalTrans(recTrans_[recLimit_ - 1]);

for (size_t i = 1; i < recLimit_; i++) {
int renderOrderIndex = recLimit_ - i - 1; //inversed order - from back to front
Expand Down Expand Up @@ -984,8 +1011,8 @@ void SampleScene::render() {
}

void SampleScene::render_FPS() {
rPortalSurface_->mesh_ = nullptr;
bPortalSurface_->mesh_ = cubeMesh_;
secondData_->surface_->mesh_ = nullptr;
firstData_->surface_->mesh_ = cubeMesh_;

//char loggingBuffer_[200];
//bPortalSurface_->getLocalTrans().toBuffer(loggingBuffer_);
Expand All @@ -994,13 +1021,13 @@ void SampleScene::render_FPS() {
//printf("rPortalSurface_ T: %s\n", loggingBuffer_);

//some recursion modes (show errors)
if (recMode_ == STANDARD) bPortalSurface_->mat_ = pinkMat_;
if (recMode_ == STANDARD) firstData_->surface_->mat_ = pinkMat_;
else {
bPortalSurface_->mat_ = bPortalMat_;
bPortalMat_->option_ = recMode_;
firstData_->surface_->mat_ = firstData_->mat_;
firstData_->mat_->option_ = recMode_;
if (recMode_ == MAPPREV) {
SolidMaterial::SOLID_MAT_SHADER.bind(); //common shader
glUniformMatrix4fv(uniformPreModel_, 1, GL_FALSE, rPortalSurface_->getModelMatrix_ptr());
glUniformMatrix4fv(uniformPreModel_, 1, GL_FALSE, secondData_->surface_->getModelMatrix_ptr());
}
}

Expand All @@ -1012,28 +1039,28 @@ void SampleScene::render_FPS() {
postProcessRT_->clear(clearColor.x, clearColor.y, clearColor.z, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

//set the transformation in order
bPortalCam_->setLocalTrans(recTrans_[i]);
firstData_->cam_->setLocalTrans(recTrans_[i]);

//calculate oblique plane
if (useObliqueProjection_) {
obliquePorj_->computedProjMatrix_ = proj_->computedProjMatrix_;
modifyProjectionMatrixOptPers(obliquePorj_->computedProjMatrix_, getClipPlane(rPortalRoot_->getLocalTrans(), bPortalCam_->getLocalTrans()));
modifyProjectionMatrixOptPers(obliquePorj_->computedProjMatrix_, getClipPlane(secondData_->root_->getLocalTrans(), firstData_->cam_->getLocalTrans()));
//load the matrix and the restore it
glUniformMatrix4fv(uniformProj_, 1, GL_FALSE, obliquePorj_->getProjMatrixPtr());
}
else glUniformMatrix4fv(uniformProj_, 1, GL_FALSE, proj_->getProjMatrixPtr());

glUniformMatrix4fv(uniformView_, 1, GL_FALSE, bPortalCam_->getViewMatrixPtr());
glUniformMatrix4fv(uniformView_, 1, GL_FALSE, firstData_->cam_->getViewMatrixPtr());
Scene::render(); //edited virtual render_rec

//EXTRA PASS - copy texture (draw to specific portal buffer + avoid writing and reading same buffer)
bPortalRT_->bind(false);
firstData_->rt_->bind(false);
screenPP_->render();

//pink only for final iteration + other recursion modes
if (i == 0) {
if (recMode_ != STANDARD) bPortalMat_->option_ = 1;
else bPortalSurface_->mat_ = bPortalMat_;
if (recMode_ != STANDARD) firstData_->mat_->option_ = 1;
else firstData_->surface_->mat_ = firstData_->mat_;
}

//rec steps quick exit to show distant recursions only
Expand All @@ -1046,22 +1073,22 @@ void SampleScene::render_FPS() {
//oblique near plane for each portal camera (camera is child of plane - so just inverse values atm)
if (useObliqueProjection_) {
obliquePorj_->computedProjMatrix_ = proj_->computedProjMatrix_;
modifyProjectionMatrixOptPers(obliquePorj_->computedProjMatrix_, getClipPlane(bPortalRoot_->getLocalTrans(), rPortalCam_->getLocalTrans()));
modifyProjectionMatrixOptPers(obliquePorj_->computedProjMatrix_, getClipPlane(firstData_->root_->getLocalTrans(), secondData_->cam_->getLocalTrans()));
glUniformMatrix4fv(uniformProj_, 1, GL_FALSE, obliquePorj_->getProjMatrixPtr());
}
else glUniformMatrix4fv(uniformProj_, 1, GL_FALSE, proj_->getProjMatrixPtr());

glUniformMatrix4fv(uniformView_, 1, GL_FALSE, rPortalCam_->getViewMatrixPtr());
glUniformMatrix4fv(uniformView_, 1, GL_FALSE, secondData_->cam_->getViewMatrixPtr());
postProcessRT_->bind(true); //3d depth test enabled
postProcessRT_->clear(clearColor.x, clearColor.y, clearColor.z, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

bPortalSurface_->mesh_ = nullptr;
rPortalSurface_->mesh_ = cubeMesh_;
rPortalSurface_->mat_ = pinkMat_;
firstData_->surface_->mesh_ = nullptr;
secondData_->surface_->mesh_ = cubeMesh_;
secondData_->surface_->mat_ = pinkMat_;
Scene::render(); //edited virtual render_rec

//EXTRA PASS - copy texture (draw to specific portal buffer + avoid writing and reading same buffer)
rPortalPanelRT_->bind(false);
secondData_->rt_->bind(false);
screenPP_->render();

//FPS camera active
Expand All @@ -1074,8 +1101,8 @@ void SampleScene::render_FPS() {
glUniformMatrix4fv(uniformView_, 1, GL_FALSE, Node::ROOT_CAM->getViewMatrixPtr());

bPortalSurface_->mesh_ = cubeMesh_;
rPortalSurface_->mesh_ = cubeMesh_;
bPortalSurface_->mat_ = bPortalMat_;
rPortalSurface_->mesh_ = cubeMesh_;
rPortalSurface_->mat_ = rPortalMat_;

//LAST PASS - all the portals have view textures
Expand Down
13 changes: 12 additions & 1 deletion VisualStudio/Src/LogicScenes/SampleScene.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -98,12 +98,23 @@ class SampleScene : public Scene, Listener<SDL_Event>

//red portal
Camera *rPortalCam_;
RenderTarget *rPortalPanelRT_;
RenderTarget *rPortalRT_;
Texture *rPortalTex_;
SolidMaterial *rPortalMat_;
Node *rPortalRoot_, *rPortalFrames_, *rPortalFramesBot_;
ShapeNode *rPortalSurface_;

//portal data struct (code should be adjusted to only use the struct)
struct portalData {
Camera *cam_;
RenderTarget *rt_;
//Texture *tex_;
SolidMaterial *mat_;
Node *root_;// , *bPortalFrames_, *bPortalFramesBot_;
ShapeNode *surface_;
};
portalData bData_, rData_, *firstData_, *secondData_;

//portal teleporting
float sqCloseDistance_;
int rSideOld_ = 0, bSideOld_ = 0;
Expand Down

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