93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
#include "SkyProgram.hpp"
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#include "../Renderer.hpp"
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using namespace pass;
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const std::vector<glm::vec3> g_cubemap_vertices = {
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{-1.0f, 1.0f, -1.0f},
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{-1.0f, -1.0f, -1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{ 1.0f, 1.0f, -1.0f},
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{-1.0f, 1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f},
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{-1.0f, -1.0f, -1.0f},
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{-1.0f, 1.0f, -1.0f},
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{-1.0f, 1.0f, -1.0f},
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{-1.0f, 1.0f, 1.0f},
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{-1.0f, -1.0f, 1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{ 1.0f, -1.0f, 1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{ 1.0f, 1.0f, -1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f},
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{-1.0f, 1.0f, 1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{ 1.0f, -1.0f, 1.0f},
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{-1.0f, -1.0f, 1.0f},
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{-1.0f, 1.0f, -1.0f},
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{ 1.0f, 1.0f, -1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{ 1.0f, 1.0f, 1.0f},
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{-1.0f, 1.0f, 1.0f},
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{-1.0f, 1.0f, -1.0f},
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{-1.0f, -1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{ 1.0f, -1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f},
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{ 1.0f, -1.0f, 1.0f}
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};
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SkyProgram::SkyProgram(): Program(), CubeBuffer(g_cubemap_vertices) {
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std::vector<std::string> flags;
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std::vector<Shader*> shaders;
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shaders.push_back(loadShader(GL_VERTEX_SHADER, flags));
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shaders.push_back(loadShader(GL_FRAGMENT_SHADER, flags));
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load(shaders);
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ViewMatrixID = glGetUniformLocation(ProgramID, "View");
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ProjectionMatrixID = glGetUniformLocation(ProgramID, "Projection");
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TextureID = glGetUniformLocation(ProgramID, "Texture");
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}
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SkyProgram::~SkyProgram() { }
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std::string SkyProgram::getName() const {
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return "Sky";
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}
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void SkyProgram::start(render::gl::Renderer *renderer) {
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const auto fixedView = glm::mat4(glm::mat3(renderer->getViewMatrix()));
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setView(&fixedView[0][0]);
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setProjection(&renderer->getProjectionMatrix()[0][0]);
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bindTexture(renderer->getSkyTexture());
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}
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void SkyProgram::draw(render::gl::Renderer *renderer) {
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useIt();
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start(renderer);
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CubeBuffer.draw();
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}
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void SkyProgram::setView(const GLfloat *matrix) {
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glUniformMatrix4fv(ViewMatrixID, 1, GL_FALSE, matrix);
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}
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void SkyProgram::setProjection(const GLfloat *matrix) {
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glUniformMatrix4fv(ProjectionMatrixID, 1, GL_FALSE, matrix);
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}
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void SkyProgram::bindTexture(GLuint textureID) {
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_CUBE_MAP, textureID);
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glUniform1i(TextureID, 0);
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}
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