GLuint glCreateSamplerGTC(GLenum mag, GLenum min, GLenum mip, GLenum wrap, GLfloat borderColor[4], GLenum compare)
{
assert(mag == GL_LINEAR || mag == GL_NEAREST);
assert(min == GL_LINEAR || min == GL_NEAREST);
assert(mip == GL_LINEAR || mip == GL_NEAREST);
GLuint sampler = 0;
glCreateSamplers(1, &sampler);
GLint minFilter = GL_NONE;
if (min == GL_LINEAR)
minFilter = mip == GL_LINEAR ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR_MIPMAP_NEAREST;
else
minFilter = mip == GL_LINEAR ? GL_NEAREST_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_NEAREST;
glSamplerParameteri(sampler, GL_TEXTURE_MIN_FILTER, minFilter);
glSamplerParameteri(sampler, GL_TEXTURE_MAG_FILTER, mag);
glSamplerParameteri(sampler, GL_TEXTURE_WRAP_S, wrap);
glSamplerParameteri(sampler, GL_TEXTURE_WRAP_T, wrap);
glSamplerParameteri(sampler, GL_TEXTURE_WRAP_R, wrap);
glSamplerParameterfv(sampler, GL_TEXTURE_BORDER_COLOR, borderColor);
glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_MODE, compare == GL_NONE ? GL_NONE : GL_COMPARE_R_TO_TEXTURE);
glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_FUNC, compare != GL_NONE ? compare : GL_LEQUAL);
return sampler;
}
bool initSampler()
{
glCreateSamplers(pipeline::MAX, &SamplerName[0]);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
glSamplerParameterfv(SamplerName[pipeline::RENDER], GL_TEXTURE_BORDER_COLOR, &glm::vec4(0.0f)[0]);
glSamplerParameterf(SamplerName[pipeline::RENDER], GL_TEXTURE_MIN_LOD, -1000.f);
glSamplerParameterf(SamplerName[pipeline::RENDER], GL_TEXTURE_MAX_LOD, 1000.f);
glSamplerParameterf(SamplerName[pipeline::RENDER], GL_TEXTURE_LOD_BIAS, 0.0f);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_COMPARE_MODE, GL_NONE);
glSamplerParameteri(SamplerName[pipeline::RENDER], GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
glSamplerParameterfv(SamplerName[pipeline::SPLASH], GL_TEXTURE_BORDER_COLOR, &glm::vec4(0.0f)[0]);
glSamplerParameterf(SamplerName[pipeline::SPLASH], GL_TEXTURE_MIN_LOD, -1000.f);
glSamplerParameterf(SamplerName[pipeline::SPLASH], GL_TEXTURE_MAX_LOD, 1000.f);
glSamplerParameterf(SamplerName[pipeline::SPLASH], GL_TEXTURE_LOD_BIAS, 0.0f);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_COMPARE_MODE, GL_NONE);
glSamplerParameteri(SamplerName[pipeline::SPLASH], GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
return true;
}
bool initSampler()
{
glCreateSamplers(1, &SamplerName);
glSamplerParameteri(SamplerName, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
glSamplerParameteri(SamplerName, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glSamplerParameteri(SamplerName, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(SamplerName, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
glSamplerParameterfv(SamplerName, GL_TEXTURE_BORDER_COLOR, &glm::vec4(0.0f)[0]);
glSamplerParameterf(SamplerName, GL_TEXTURE_MIN_LOD, -1000.f);
glSamplerParameterf(SamplerName, GL_TEXTURE_MAX_LOD, 1000.f);
glSamplerParameterf(SamplerName, GL_TEXTURE_LOD_BIAS, 0.0f);
glSamplerParameteri(SamplerName, GL_TEXTURE_COMPARE_MODE, GL_NONE);
glSamplerParameteri(SamplerName, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
return true;
}
