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NEvOl

msaa

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Hi, i try add msaa to my project, but eglChooseConfig(g_display, configAttributes, &config, 1, &countConfig) returning countConfig = 0, how i can check support msaa ?

code:

EGLint configAttributes[] =
    {
        EGL_RED_SIZE,       8,
        EGL_GREEN_SIZE,     8,
        EGL_BLUE_SIZE,      8,
        EGL_ALPHA_SIZE,     8,
        EGL_DEPTH_SIZE,     24,
        EGL_STENCIL_SIZE,   8,
EGL_SAMPLE_BUFFERS, 1,
EGL_SAMPLES,        4,
        EGL_NONE
    };
 
if(EGL_FALSE == eglChooseConfig(g_display, configAttributes, &config, 1, &countConfig)) || countConfig != 1)
{
MB(L"eglChooseConfig - Failed");
return 0;
}

 

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I'm not a pro on opengl es but the I guess standard method would be drawing to a multisample framebuffer object you have created with glCreateFramebuffers () and when you have finished rendering resolve the multisample framebuffer to you backbuffer with glBlitFramebuffer ().

Hope that helps.

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Try setting EGL_SAMPLES to 1 and you should be returned a list of configs that support 1 or more samples. If there are none then your graphics driver is saying it doesn't support MSAA configs.

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