78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#include "OpenGLSkybox.h"
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#include <cmath>
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#include "OpenGLRenderer.h"
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#include "OpenGLShaderProgram.h"
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#include "OpenGLSharedState.h"
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#include "Scenery.h"
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#include "AtmosphereDefinition.h"
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#include "AtmosphereRenderer.h"
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#include "AtmosphereModelBruneton.h"
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OpenGLSkybox::OpenGLSkybox(OpenGLRenderer* renderer):
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OpenGLPart(renderer)
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{
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vertices = new float[14 * 3];
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daytime = renderer->getScenery()->getAtmosphere()->_daytime;
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}
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OpenGLSkybox::~OpenGLSkybox()
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{
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delete[] vertices;
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}
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void OpenGLSkybox::initialize()
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{
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program = createShader("skybox");
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program->addVertexSource("skybox");
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program->addFragmentSource("bruneton");
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program->addFragmentSource("tonemapping");
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program->addFragmentSource("skybox");
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setVertex(0, 1.0f, 1.0f, 1.0f);
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setVertex(12, 1.0f, 1.0f, 1.0f);
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setVertex(1, 1.0f, -1.0f, 1.0f);
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setVertex(5, 1.0f, -1.0f, 1.0f);
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setVertex(13, 1.0f, -1.0f, 1.0f);
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setVertex(2, -1.0f, 1.0f, 1.0f);
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setVertex(10, -1.0f, 1.0f, 1.0f);
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setVertex(3, -1.0f, -1.0f, 1.0f);
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setVertex(4, -1.0f, -1.0f, -1.0f);
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setVertex(8, -1.0f, -1.0f, -1.0f);
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setVertex(6, 1.0f, -1.0f, -1.0f);
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setVertex(7, 1.0f, 1.0f, -1.0f);
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setVertex(11, 1.0f, 1.0f, -1.0f);
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setVertex(9, -1.0f, 1.0f, -1.0f);
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}
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void OpenGLSkybox::update()
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{
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Vector3 sun_direction = renderer->getAtmosphereRenderer()->getSunDirection();
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renderer->getSharedState()->set("sunDirection", sun_direction);
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Color sun_color = renderer->getScenery()->getAtmosphere()->sun_color;
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renderer->getSharedState()->set("sunColor", sun_color);
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SoftwareBrunetonAtmosphereRenderer* bruneton = (SoftwareBrunetonAtmosphereRenderer*)renderer->getAtmosphereRenderer();
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renderer->getSharedState()->set("transmittanceTexture", bruneton->getModel()->getTextureTransmittance());
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renderer->getSharedState()->set("inscatterTexture", bruneton->getModel()->getTextureInscatter());
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}
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void OpenGLSkybox::render()
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{
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program->drawTriangleStrip(vertices, 14);
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}
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void OpenGLSkybox::setVertex(int i, float x, float y, float z)
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{
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vertices[i * 3] = x;
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vertices[i * 3 + 1] = y;
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vertices[i * 3 + 2] = z;
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}
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