mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-23 12:40:01 -06:00
109 lines
4.2 KiB
C++
109 lines
4.2 KiB
C++
// * Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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// * software and associated documentation files (the "Software"), to deal in the Software *
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// * without restriction, including without limitation the rights to use, copy, modify, *
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// * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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// * permit persons to whom the Software is furnished to do so, subject to the following *
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// * conditions: *
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// * *
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// * The above copyright notice and this permission notice shall be included in all copies *
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// * or substantial portions of the Software. *
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// * *
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// * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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// * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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// * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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// * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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// * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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// * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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// ****************************************************************************************/
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#include <modules/iswa/rendering/cygnetplane.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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#include <openspace/util/spicemanager.h>
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namespace openspace{
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CygnetPlane::CygnetPlane(const ghoul::Dictionary& dictionary)
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:ISWACygnet(dictionary)
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,_quad(0)
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,_vertexPositionBuffer(0)
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,_planeIsDirty(true)
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{}
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CygnetPlane::~CygnetPlane(){}
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bool CygnetPlane::isReady() const{
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bool ready = true;
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if (!_shader)
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ready &= false;
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// if(!_texture)
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// ready &= false;
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return ready;
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}
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void CygnetPlane::createPlane(){
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glGenVertexArrays(1, &_quad); // generate array
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glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
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// ============================
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// GEOMETRY (quad)
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// ============================
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// GLfloat x,y, z;
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float s = _data->spatialScale.x;
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const GLfloat x = s*_data->scale.x/2.0;
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const GLfloat y = s*_data->scale.y/2.0;
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const GLfloat z = s*_data->scale.z/2.0;
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const GLfloat w = _data->spatialScale.y;
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const GLfloat vertex_data[] = { // square of two triangles (sigh)
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// x y z w s t
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-x, -z, -y, w, 0, 1,
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x, z, y, w, 1, 0,
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-x, ((x>0)?z:-z), y, w, 0, 0,
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-x, -z, -y, w, 0, 1,
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x, ((x>0)?-z:z), -y, w, 1, 1,
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x, z, y, w, 1, 0,
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};
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glBindVertexArray(_quad); // bind array
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glBindBuffer(GL_ARRAY_BUFFER, _vertexPositionBuffer); // bind buffer
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(0));
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glEnableVertexAttribArray(1);
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(sizeof(GLfloat) * 4));
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_planeIsDirty = false;
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}
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void CygnetPlane::destroyPlane(){
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glDeleteVertexArrays(1, &_quad);
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_quad = 0;
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glDeleteBuffers(1, &_vertexPositionBuffer);
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_vertexPositionBuffer = 0;
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}
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bool CygnetPlane::createShader(){
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if (_shader == nullptr) {
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// Plane Program
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RenderEngine& renderEngine = OsEng.renderEngine();
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_shader = renderEngine.buildRenderProgram("PlaneProgram",
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"${MODULE_ISWA}/shaders/cygnetplane_vs.glsl",
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"${MODULE_ISWA}/shaders/cygnetplane_fs.glsl"
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);
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if (!_shader)
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return false;
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}
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return true;
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}
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void CygnetPlane::destroyShader(){
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_shader) {
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renderEngine.removeRenderProgram(_shader);
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_shader = nullptr;
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}
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}
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} //namespace openspace
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