mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2025-12-31 16:30:07 -06:00
233 lines
8.2 KiB
C++
233 lines
8.2 KiB
C++
/*****************************************************************************************
|
|
* *
|
|
* OpenSpace *
|
|
* *
|
|
* Copyright (c) 2014-2016 *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
|
|
* software and associated documentation files (the "Software"), to deal in the Software *
|
|
* without restriction, including without limitation the rights to use, copy, modify, *
|
|
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
|
|
* permit persons to whom the Software is furnished to do so, subject to the following *
|
|
* conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included in all copies *
|
|
* or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
|
|
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
|
|
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
|
|
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
****************************************************************************************/
|
|
|
|
#include <modules/base/rendering/renderablesphericalgrid.h>
|
|
|
|
#include <openspace/engine/configurationmanager.h>
|
|
#include <openspace/engine/openspaceengine.h>
|
|
#include <openspace/util/spicemanager.h>
|
|
|
|
#define _USE_MATH_DEFINES
|
|
#include <math.h>
|
|
|
|
namespace {
|
|
const std::string _loggerCat = "RenderableSphericalGrid";
|
|
const std::string KeyGridType = "GridType";
|
|
const std::string KeyGridColor = "GridColor";
|
|
const std::string KeyGridMatrix = "GridMatrix";
|
|
const std::string KeyGridSegments = "GridSegments";
|
|
const std::string KeyGridRadius = "GridRadius";
|
|
const std::string KeyGridParentsRotation = "ParentsRotation";
|
|
}
|
|
namespace openspace {
|
|
|
|
// needs to be set from dictionary - REMEMBER
|
|
const PowerScaledScalar radius = PowerScaledScalar(1.f, 20.f);
|
|
|
|
RenderableSphericalGrid::RenderableSphericalGrid(const ghoul::Dictionary& dictionary)
|
|
: Renderable(dictionary)
|
|
, _gridProgram(nullptr)
|
|
, _vaoID(0)
|
|
, _vBufferID(0)
|
|
, _iBufferID(0)
|
|
, _mode(GL_LINES)
|
|
{
|
|
_gridMatrix = glm::mat4(1);
|
|
dictionary.getValue(KeyGridType, _gridType);
|
|
dictionary.getValue(KeyGridColor, _gridColor);
|
|
|
|
staticGrid = dictionary.getValue(KeyGridMatrix, _gridMatrix);
|
|
if (!staticGrid){
|
|
staticGrid = dictionary.getValue(KeyGridParentsRotation, _parentsRotation);
|
|
}
|
|
|
|
dictionary.getValue(KeyGridSegments, _segments);
|
|
|
|
|
|
/*glm::vec2 radius;
|
|
dictionary.getValue(constants::renderablesphericalgrid::gridRadius, radius);
|
|
*/
|
|
|
|
_isize = int(6 * _segments * _segments);
|
|
_vsize = int((_segments + 1) * (_segments + 1));
|
|
_varray = new Vertex[_vsize];
|
|
_iarray = new int[_isize];
|
|
|
|
static_assert(sizeof(Vertex) == 64, "The size of the Vertex needs to be 64 for performance");
|
|
|
|
int nr = 0;
|
|
const float fsegments = static_cast<float>(_segments);
|
|
const float r = static_cast<float>(radius[0]);
|
|
|
|
//int nr2 = 0;
|
|
|
|
for (int i = 0; i <= _segments; i++) {
|
|
// define an extra vertex around the y-axis due to texture mapping
|
|
for (int j = 0; j <= _segments; j++) {
|
|
const float fi = static_cast<float>(i);
|
|
const float fj = static_cast<float>(j);
|
|
|
|
// inclination angle (north to south)
|
|
const float theta = fi * float(M_PI) / fsegments*2.f; // 0 -> PI
|
|
|
|
// azimuth angle (east to west)
|
|
const float phi = fj * float(M_PI) * 2.0f / fsegments; // 0 -> 2*PI
|
|
|
|
const float x = r * sin(phi) * sin(theta); //
|
|
const float y = r * cos(theta); // up
|
|
const float z = r * cos(phi) * sin(theta); //
|
|
|
|
glm::vec3 normal = glm::vec3(x, y, z);
|
|
if (!(x == 0.f && y == 0.f && z == 0.f))
|
|
normal = glm::normalize(normal);
|
|
|
|
//const float t1 = fj / fsegments;
|
|
const float t2 = fi / fsegments;
|
|
|
|
// tex coord. not used, use to manip color
|
|
if (round(y) == 0.0f) _varray[nr].tex[0] = -2;
|
|
_varray[nr].tex[1] = t2;
|
|
|
|
glm::vec4 tmp(x, y, z, 1);
|
|
glm::mat4 rot = glm::rotate(glm::mat4(1), static_cast<float>(M_PI_2), glm::vec3(1, 0, 0));
|
|
tmp = _gridMatrix*rot*tmp;
|
|
|
|
for (int i = 0; i < 3; i++){
|
|
_varray[nr].location[i] = tmp[i];
|
|
_varray[nr].normal[i] = normal[i];
|
|
}
|
|
_varray[nr].location[3] = static_cast<GLfloat>(radius[1]);
|
|
++nr;
|
|
}
|
|
}
|
|
nr = 0;
|
|
// define indices for all triangles
|
|
for (int i = 1; i <= _segments; ++i) {
|
|
for (int j = 0; j < _segments; ++j) {
|
|
const int t = _segments + 1;
|
|
_iarray[nr] = t * (i - 1) + j + 0; ++nr;
|
|
_iarray[nr] = t * (i + 0) + j + 0; ++nr;
|
|
_iarray[nr] = t * (i + 0) + j + 1; ++nr;
|
|
_iarray[nr] = t * (i - 1) + j + 1; ++nr;
|
|
_iarray[nr] = t * (i - 1) + j + 0; ++nr;
|
|
}
|
|
}
|
|
}
|
|
|
|
RenderableSphericalGrid::~RenderableSphericalGrid(){
|
|
deinitialize();
|
|
|
|
// Delete not done in deinitialize because new is done in constructor
|
|
delete[] _varray;
|
|
delete[] _iarray;
|
|
}
|
|
|
|
bool RenderableSphericalGrid::isReady() const {
|
|
bool ready = true;
|
|
ready &= (_gridProgram != nullptr);
|
|
return ready;
|
|
}
|
|
|
|
bool RenderableSphericalGrid::deinitialize(){
|
|
glDeleteVertexArrays(1,&_vaoID);
|
|
_vaoID = 0;
|
|
|
|
glDeleteBuffers(1,&_vBufferID);
|
|
_vBufferID = 0;
|
|
|
|
glDeleteBuffers(1,&_iBufferID);
|
|
_iBufferID = 0;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool RenderableSphericalGrid::initialize(){
|
|
bool completeSuccess = true;
|
|
if (_gridProgram == nullptr)
|
|
completeSuccess &= OsEng.ref().configurationManager().getValue("GridProgram", _gridProgram);
|
|
|
|
// Initialize and upload to graphics card
|
|
glGenVertexArrays(1, &_vaoID);
|
|
glGenBuffers(1, &_vBufferID);
|
|
glGenBuffers(1, &_iBufferID);
|
|
|
|
// First VAO setup
|
|
glBindVertexArray(_vaoID);
|
|
glBindBuffer(GL_ARRAY_BUFFER, _vBufferID);
|
|
glBufferData(GL_ARRAY_BUFFER, _vsize * sizeof(Vertex), _varray, GL_STATIC_DRAW);
|
|
|
|
glEnableVertexAttribArray(0);
|
|
glEnableVertexAttribArray(1);
|
|
glEnableVertexAttribArray(2);
|
|
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex),
|
|
reinterpret_cast<const GLvoid*>(offsetof(Vertex, location)));
|
|
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex),
|
|
reinterpret_cast<const GLvoid*>(offsetof(Vertex, tex)));
|
|
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex),
|
|
reinterpret_cast<const GLvoid*>(offsetof(Vertex, normal)));
|
|
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _iBufferID);
|
|
glBufferData(GL_ELEMENT_ARRAY_BUFFER, _isize * sizeof(int), _iarray, GL_STATIC_DRAW);
|
|
|
|
glBindVertexArray(0);
|
|
|
|
return completeSuccess;
|
|
}
|
|
|
|
void RenderableSphericalGrid::render(const RenderData& data){
|
|
_gridProgram->activate();
|
|
|
|
glm::mat4 transform;
|
|
for (int i = 0; i < 3; i++){
|
|
for (int j = 0; j < 3; j++){
|
|
transform[i][j] = static_cast<float>(_parentMatrix[i][j]);
|
|
}
|
|
}
|
|
|
|
|
|
// setup the data to the shader
|
|
_gridProgram->setIgnoreUniformLocationError(true);
|
|
_gridProgram->setUniform("ViewProjection", data.camera.viewProjectionMatrix());
|
|
_gridProgram->setUniform("ModelTransform", transform);
|
|
setPscUniforms(_gridProgram, &data.camera, data.position);
|
|
_gridProgram->setUniform("gridColor", _gridColor);
|
|
|
|
glLineWidth(0.5f);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glEnable(GL_BLEND);
|
|
glEnable(GL_LINE_SMOOTH);
|
|
|
|
glBindVertexArray(_vaoID); // select first VAO
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _iBufferID);
|
|
glDrawElements(_mode, _isize, GL_UNSIGNED_INT, 0);
|
|
glBindVertexArray(0);
|
|
|
|
_gridProgram->deactivate();
|
|
}
|
|
|
|
void RenderableSphericalGrid::update(const UpdateData& data) {
|
|
_parentMatrix = SpiceManager::ref().positionTransformMatrix("IAU_JUPITER", "GALACTIC", data.time);
|
|
|
|
}
|
|
} |