mirror of
https://github.com/OpenSpace/OpenSpace.git
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126 lines
5.3 KiB
C++
126 lines
5.3 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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* *
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* 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/globebrowsing/rendering/patchrenderer.h>
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#include <modules/globebrowsing/util/converter.h>
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// open space includes
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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// ghoul includes
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#include <ghoul/misc/assert.h>
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#define _USE_MATH_DEFINES
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#include <math.h>
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namespace {
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const std::string _loggerCat = "LatLonPatch";
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const std::string keyFrame = "Frame";
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const std::string keyGeometry = "Geometry";
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const std::string keyShading = "PerformShading";
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const std::string keyBody = "Body";
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}
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namespace openspace {
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//////////////////////////////////////////////////////////////////////////////////////
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// PATCH RENDERER //
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//////////////////////////////////////////////////////////////////////////////////////
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PatchRenderer::PatchRenderer(shared_ptr<Geometry> geometry)
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: _geometry(geometry)
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{
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}
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PatchRenderer::~PatchRenderer() {
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if (_programObject) {
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RenderEngine& renderEngine = OsEng.renderEngine();
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renderEngine.removeRenderProgram(_programObject);
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_programObject = nullptr;
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}
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}
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void PatchRenderer::renderPatch(const LatLonPatch& patch, const RenderData& data, double radius) {
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// nothing to do
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}
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//////////////////////////////////////////////////////////////////////////////////////
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// LATLON PATCH RENDERER //
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//////////////////////////////////////////////////////////////////////////////////////
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LatLonPatchRenderer::LatLonPatchRenderer(shared_ptr<Geometry> geometry)
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: PatchRenderer(geometry)
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{
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_programObject = OsEng.renderEngine().buildRenderProgram(
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"LatLonSphereMappingProgram",
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"${MODULE_GLOBEBROWSING}/shaders/latlonpatch_spheremapping_vs.glsl",
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"${MODULE_GLOBEBROWSING}/shaders/simple_fs.glsl");
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ghoul_assert(_programObject != nullptr, "Failed to initialize programObject!");
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using IgnoreError = ghoul::opengl::ProgramObject::IgnoreError;
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_programObject->setIgnoreSubroutineUniformLocationError(IgnoreError::Yes);
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}
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void LatLonPatchRenderer::renderPatch(
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const LatLonPatch& patch, const RenderData& data, double radius)
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{
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// activate shader
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_programObject->activate();
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using namespace glm;
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// Get camera transform matrix
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// TODO : Should only need to fetch the camera transform and use directly
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// but this is not currently possible in the camera class.
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vec3 cameraPosition = data.camera.position().vec3();
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mat4 viewTransform = inverse(translate(mat4(1.0), cameraPosition));
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viewTransform = mat4(data.camera.viewRotationMatrix()) * viewTransform;
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// TODO : Model transform should be fetched as a matrix directly.
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mat4 modelTransform = translate(mat4(1), data.position.vec3());
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LatLon swCorner = patch.southWestCorner();
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_programObject->setUniform("modelViewProjectionTransform", data.camera.projectionMatrix() * viewTransform * modelTransform);
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_programObject->setUniform("minLatLon", vec2(swCorner.lat, swCorner.lon));
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_programObject->setUniform("latLonScalingFactor", 2.0f * vec2(patch.halfSize.lat, patch.halfSize.lon));
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_programObject->setUniform("globeRadius", float(radius));
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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// render
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_geometry->drawUsingActiveProgram();
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// disable shader
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_programObject->deactivate();
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}
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} // namespace openspace
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