Function createBlurFbo

src/llm/render/blurRender.ts:53–75

()

    // also attach depth buffer of primary scene fbo

    function createBlurFbo() {
        let fbo = gl.createFramebuffer()!;
        let tex = gl.createTexture()!;
        gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
        gl.bindTexture(gl.TEXTURE_2D, tex);
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
        gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0);
        // gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.RENDERBUFFER, stencilRenderBuf); // sharing the stencil buffer
        // gl.drawBuffers([gl.COLOR_ATTACHMENT0]);

        {
            let status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
            if (status !== gl.FRAMEBUFFER_COMPLETE) {
                console.log(`Blur framebuffer not complete: ${status.toString(16)}`);
            }
        }

        return { fbo, tex };
    }

    let blurFbos = [createBlurFbo(), createBlurFbo()];