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milek7
2018-07-15 23:46:53 +02:00
parent 794093dad4
commit 4c855d5980
26 changed files with 690 additions and 183 deletions
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37
gl/cubemap.cpp Normal file
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#include "cubemap.h"
gl::cubemap::cubemap()
{
glGenTextures(1, *this);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
}
gl::cubemap::~cubemap()
{
glDeleteTextures(1, *this);
}
void gl::cubemap::alloc(GLint format, int width, int height, GLenum components, GLenum type)
{
glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
for (GLuint tgt = GL_TEXTURE_CUBE_MAP_POSITIVE_X; tgt <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z; tgt++)
glTexImage2D(tgt, 0, format, width, height, 0, components, type, nullptr);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
}
void gl::cubemap::bind(int unit)
{
glActiveTexture(unit);
glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
}
void gl::cubemap::generate_mipmaps()
{
glBindTexture(GL_TEXTURE_CUBE_MAP, *this);
glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
}