Function testBindingNullToTexture

test/tests/program-tests.js:1222–1244

(gl)

  describe('setUniforms', () => {

    function testBindingNullToTexture(gl) {
      const programInfo = twgl.createProgramInfo(gl, [
        `void main() {
          gl_Position = vec4(0);
        }
        `,
        `
        precision mediump float;
        uniform sampler2D tex;
        uniform sampler2D texArr[1];
        void main() {
          texArr[0];
          gl_FragColor = texture2D(tex, vec2(0));
        }
        `,
      ]);
      gl.useProgram(programInfo.program);
      twgl.setUniforms(programInfo, {
        tex: null,
        texArr: [null],
      });
      assertNoWebGLError(gl);
    }

    itWebGL(`WebGL: lets you bind a null texture`, () => {
      const {gl} = createContext();