CubeMapTexture* CubeMapTexture::Load(
const std::string& frontFace, const std::string& backFace, const std::string& leftFace,
const std::string& rightFace, const std::string& upFace, const std::string& downFace){
CubeMapTexture* cubeMap = new CubeMapTexture();
Texture::SetActiveTextureUnit(0);
cubeMap->Bind();
if(!cubeMap->LoadCubemapFace(leftFace, GL_TEXTURE_CUBE_MAP_NEGATIVE_X)) return NULL;
if(!cubeMap->LoadCubemapFace(rightFace, GL_TEXTURE_CUBE_MAP_POSITIVE_X))return NULL;
if(!cubeMap->LoadCubemapFace(downFace, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y))return NULL;
if(!cubeMap->LoadCubemapFace(upFace, GL_TEXTURE_CUBE_MAP_POSITIVE_Y))return NULL;
if(!cubeMap->LoadCubemapFace(backFace, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))return NULL;
if(!cubeMap->LoadCubemapFace(frontFace, GL_TEXTURE_CUBE_MAP_POSITIVE_Z))return NULL;
cubeMap->GenerateMipmap();
cubeMap->Unbind();
return cubeMap;
}
CubeMapTexture* CubeMapTexture::Load(int size) {
CubeMapTexture* cubeMap = new CubeMapTexture();
Texture::SetActiveTextureUnit(0);
cubeMap->Bind();
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BASE_LEVEL, 0));
GL_C(glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, 0));
GL_C(glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS));
struct RGBA {
GLubyte r;
GLubyte g;
GLubyte b;
GLubyte a;
};
RGBA green; green.r = 0;green.g = 255;green.b = 0;green.a = 255;
RGBA red; red.r = 255;red.g = 0;red.b = 0;red.a = 255;
std::vector<RGBA> testData(size * size * sizeof(RGBA), green );
std::vector<RGBA> xData(size * size * sizeof(RGBA), red);
for(int i = 0; i < 6; ++i) {
std::vector<RGBA> d = i % 2 == 0 ? testData : xData;
glTexImage2D(
GL_TEXTURE_CUBE_MAP_POSITIVE_X+i, 0, GL_RGBA8 , size,size, 0, GL_RGBA, GL_UNSIGNED_BYTE,
/*&d[0]*/ nullptr);
/*
GL_C(glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ));
GL_C(glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE ));
*/
// GL_C(glGenerateMipmap(m_target));
}
/*
GL_C(glFinish() );
GL_C(glFlush() );
}*/
// cubeMap->SetTextureClamping();
// cubeMap->SetTextureWrap(GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
// cubeMap->GenerateMipmap();
// cubeMap->Unbind();
return cubeMap;
}
