Method beginRenderPass

src/main/java/net/optifine/shaders/Shaders.java:4217–4228

(int pass, float partialTicks, long finishTimeNano)

    }

    public static void beginRenderPass(int pass, float partialTicks, long finishTimeNano)
    {
        if (!isShadowPass)
        {
            EXTFramebufferObject.glBindFramebufferEXT(36160, dfb);
            GL11.glViewport(0, 0, renderWidth, renderHeight);
            activeDrawBuffers = null;
            ShadersTex.bindNSTextures(defaultTexture.getMultiTexID());
            useProgram(ProgramTextured);
            checkGLError("end beginRenderPass");
        }
    }

    public static void setViewport(int vx, int vy, int vw, int vh)
    {