編輯:這不是一個Firefox的錯誤而已,我得到了鍍鉻同樣的錯誤藏漢WebGL:沒有綁定到啓用頂點的VBO。我是否需要頂點索引的「vertexAttribPointer」?
我收到以下錯誤:
WebGL warning: drawElements: no VBO bound to enabled vertex attrib index 1u!
我看了看周圍的網,它看起來像指數緩衝區需要一個「vertexAttribPointer」,但我找不到解釋這個地方的地方,所以我仍然不確定。
,這是我的VBO功能渲染:
g.activeTexture(g.TEXTURE0);
g.bindTexture(g.TEXTURE_2D, obj.texture);
g.uniform1i(g.getUniformLocation(shaderProgram, 'uSampler'), 0);
g.vertexAttribPointer(
textureCoordAttribute, 2, g.FLOAT, g.FALSE, 0, 0);
//vertices
g.bindBuffer(g.ARRAY_BUFFER, obj.vertBuffer);
g.vertexAttribPointer(
positionAttribLocation, obj.vertSize, g.FLOAT, g.FALSE, 0, 0);
//white color
g.bindBuffer(g.ARRAY_BUFFER, whiteColorBuffer);
g.vertexAttribPointer(
colorAttribLocation, 4, g.FLOAT, g.FALSE, 0, 0);
//Texture coords
g.bindBuffer(g.ARRAY_BUFFER, obj.textureBuffer);
g.vertexAttribPointer(
textureCoordAttribute, 2, g.FLOAT, g.FALSE, 0, 0);
//indices buffer
g.bindBuffer(g.ELEMENT_ARRAY_BUFFER, obj.indexBuffer);
setMatrixUniforms();
g.drawElements(g.TRIANGLES, obj.indexNumItems, g.UNSIGNED_SHORT, 0);
g.bindTexture(g.TEXTURE_2D, null);
g.bindBuffer(g.ARRAY_BUFFER, null);
g.bindBuffer(g.ELEMENT_ARRAY_BUFFER, null);
indices數組是正確的,頂點數組,因爲它的工作沒有之前的紋理(儘管它呈現的頂點的一半)。
我是否需要爲着色器添加索引變量?
EDIT2:這是我目前getAttribLocations怎麼樣子:
positionAttribLocation = g.getAttribLocation(shaderProgram, "vertPosition");
colorAttribLocation = g.getAttribLocation(shaderProgram, "vertColor");
textureCoordAttribute = g.getAttribLocation(shaderProgram, "aTextureCoord");
g.vertexAttribPointer(
positionAttribLocation, // attribute location
2, //number of elements per attribute
gl.FLOAT, // type of element
gl.FALSE,
5 * Float32Array.BYTES_PER_ELEMENT,//size of induvidual vertex
0//offset from the beginning of a single vertex to this attribute
);
g.vertexAttribPointer(
colorAttribLocation,
3,
g.FLOAT,
g.FALSE,
5 * Float32Array.BYTES_PER_ELEMENT,
2 * Float32Array.BYTES_PER_ELEMENT
);
g.vertexAttribPointer(
textureCoordAttribute,
2,
g.FLOAT,
g.FALSE,
0,
0
);
g.enableVertexAttribArray(positionAttribLocation);
g.enableVertexAttribArray(colorAttribLocation);
g.enableVertexAttribArray(textureCoordAttribute);
[WebGL VBO錯誤在Firefox中]的可能重複(https://stackoverflow.com/questions/28490041/webgl-v bo-error-in-firefox) –
我還提到沒有'gl.FALSE'?我想我是。 –
你在哪裏[getAttribLocation](https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/getAttribLocation)以及你在哪裏[enableVertexAttribArray](https://developer.mozilla.org/ de/docs/Web/API/WebGLRenderingContext/enableVertexAttribArray) – Rabbid76