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738369e21f
Instead of calling glutSolidSphere, just call Application::getInstance()->getGeometryCache()->renderSphere(...) - replaced all the instances of "glutSolidSphere" - Changed the atmosphere shaders so instead of drawing a sphere of the size of the atmosphere, we draw a unit sphere, the vertices get scaled at the right radius in th vertex shader using fOuterRadius
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
//
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// Stars.cpp
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// interface/src
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//
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// Created by Tobias Schwinger on 3/22/13.
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// Copyright 2013 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include "InterfaceConfig.h"
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#include "Stars.h"
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#include "starfield/Controller.h"
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Stars::Stars() :
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_controller(0l), _starsLoaded(false) {
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_controller = new starfield::Controller;
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}
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Stars::~Stars() {
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delete _controller;
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}
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bool Stars::generate(unsigned numStars, unsigned seed) {
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_starsLoaded = _controller->computeStars(numStars, seed);
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return _starsLoaded;
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}
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bool Stars::setResolution(unsigned k) {
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return _controller->setResolution(k);
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}
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void Stars::render(float fovY, float aspect, float nearZ, float alpha) {
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// determine length of screen diagonal from quadrant height and aspect ratio
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float quadrantHeight = nearZ * tan(RADIANS_PER_DEGREE * fovY * 0.5f);
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float halfDiagonal = sqrt(quadrantHeight * quadrantHeight * (1.0f + aspect * aspect));
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// determine fov angle in respect to the diagonal
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float fovDiagonal = atan(halfDiagonal / nearZ) * 2.0f;
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// pull the modelview matrix off the GL stack
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glm::mat4 view; glGetFloatv(GL_MODELVIEW_MATRIX, glm::value_ptr(view));
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_controller->render(fovDiagonal, aspect, glm::affineInverse(view), alpha);
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}
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