Python ShaderBuffer Examples

Example #1

def test_glsl_ssbo(gsg):
    from struct import pack
    num1 = pack('<i', 1234567)
    num2 = pack('<i', -1234567)
    buffer1 = core.ShaderBuffer("buffer1", num1, core.GeomEnums.UH_static)
    buffer2 = core.ShaderBuffer("buffer2", num2, core.GeomEnums.UH_static)

    preamble = """
    layout(std430, binding=0) buffer buffer1 {
        int value1;
    };
    layout(std430, binding=1) buffer buffer2 {
        int value2;
    };
    """
    code = """
    assert(value1 == 1234567);
    assert(value2 == -1234567);
    """
    run_glsl_test(gsg,
                  code,
                  preamble, {
                      'buffer1': buffer1,
                      'buffer2': buffer2
                  },
                  exts={
                      'GL_ARB_shader_storage_buffer_object',
                      'GL_ARB_uniform_buffer_object',
                      'GL_ARB_shading_language_420pack'
                  })

Example #2

File: test_glsl_shader.py Project: rebcabin/panda3d

def test_glsl_ssbo(gsg):
    from struct import pack
    num1 = pack('<i', 1234567)
    num2 = pack('<i', -1234567)
    buffer1 = core.ShaderBuffer("buffer1", num1, core.GeomEnums.UH_static)
    buffer2 = core.ShaderBuffer("buffer2", num2, core.GeomEnums.UH_static)

    preamble = """
    layout(std430, binding=0) buffer buffer1 {
        int value1;
    };
    layout(std430, binding=1) buffer buffer2 {
        int value2;
    };
    """
    code = """
    assert(value1 == 1234567);
    assert(value2 == -1234567);
    """
    run_glsl_test(gsg, code, preamble, {'buffer1': buffer1, 'buffer2': buffer2}), code