Function drawstencilshadows

source/src/shadow.cpp:316–439

}

void drawstencilshadows()
{
    glDisable(GL_FOG);
    glEnable(GL_STENCIL_TEST);
    glDisable(GL_TEXTURE_2D);

    glDepthMask(GL_FALSE);
    glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);

    stenciling = 1;

    shadowcasters = 0;
    shadowx2 = shadowy2 = -1;
    shadowx1 = shadowy1 = 1;
    memset(shadowtiles, 0, sizeof(shadowtiles));

    if(hasST2 || hasSTS)
    {
        glDisable(GL_CULL_FACE);

        if(hasST2)
        {
            glEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);

            glActiveStencilFace_(GL_BACK);
            glStencilFunc(GL_ALWAYS, 0, ~0U);
            glStencilOp(GL_KEEP, GL_KEEP, hasSTW ? GL_INCR_WRAP_EXT : GL_INCR);

            glActiveStencilFace_(GL_FRONT);
            glStencilFunc(GL_ALWAYS, 0, ~0U);
            glStencilOp(GL_KEEP, GL_KEEP, hasSTW ? GL_DECR_WRAP_EXT : GL_DECR);
        }
        else
        {
            glStencilFuncSeparate_(GL_ALWAYS, GL_ALWAYS, 0, ~0U);
            glStencilOpSeparate_(GL_BACK, GL_KEEP, GL_KEEP, hasSTW ? GL_INCR_WRAP_EXT : GL_INCR);
            glStencilOpSeparate_(GL_FRONT, GL_KEEP, GL_KEEP, hasSTW ? GL_DECR_WRAP_EXT : GL_DECR);
        }

        startmodelbatches();
        rendermapmodels();
        renderentities();
        renderclients();
        renderbounceents();
        endmodelbatches();

        if(hasST2) glDisable(GL_STENCIL_TEST_TWO_SIDE_EXT);
        glEnable(GL_CULL_FACE);
    }
    else
    {
        glStencilFunc(GL_ALWAYS, 0, ~0U);
        glStencilOp(GL_KEEP, GL_KEEP, GL_INCR);

        startmodelbatches();
        rendermapmodels();
        renderentities();
        renderclients();