本文整理汇总了TypeScript中neuroglancer/webgl/one_dimensional_texture_access.OneDimensionalTextureAccessHelper.setupTextureLayout方法的典型用法代码示例。如果您正苦于以下问题：TypeScript OneDimensionalTextureAccessHelper.setupTextureLayout方法的具体用法？TypeScript OneDimensionalTextureAccessHelper.setupTextureLayout怎么用？TypeScript OneDimensionalTextureAccessHelper.setupTextureLayout使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类neuroglancer/webgl/one_dimensional_texture_access.OneDimensionalTextureAccessHelper的用法示例。
在下文中一共展示了OneDimensionalTextureAccessHelper.setupTextureLayout方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: setupTextureLayout
/**
* Called each time textureLayout changes while drawing chunks.
*/
setupTextureLayout(gl: GL, shader: ShaderProgram, textureLayout: TextureLayout) {
if (this.numChannels > 1) {
gl.uniform1f(shader.uniform('uChannelStride'), textureLayout.channelStride);
}
this.textureAccessHelper.setupTextureLayout(gl, shader, textureLayout);
}示例2: setupTextureLayout
/**
* Called each time textureLayout changes while drawing chunks.
*/
setupTextureLayout(gl: GL, shader: ShaderProgram, textureLayout: TextureLayout) {
gl.uniform3fv(shader.uniform('uSubchunkGridSize'), textureLayout.subchunkGridSize);
this.textureAccessHelper.setupTextureLayout(gl, shader, textureLayout);
}示例3: fragmentShaderTest
fragmentShaderTest(6, tester => {
let {gl, builder} = tester;
const dataType = DataType.UINT32;
const numComponents = 1;
const format = new OneDimensionalTextureFormat();
const layout = new OneDimensionalTextureLayout();
compute1dTextureFormat(format, dataType, numComponents);
const data = new Uint32Array(dataLength);
for (let i = 0; i < data.length; ++i) {
data[i] = i;
}
setLayout(layout, gl, format.texelsPerElement);
const accessHelper = new OneDimensionalTextureAccessHelper('textureAccess');
const textureUnitSymbol = Symbol('textureUnit');
accessHelper.defineShader(builder);
builder.addUniform('highp float', 'uOffset');
builder.addUniform('highp vec4', 'uExpected');
builder.addTextureSampler2D('uSampler', textureUnitSymbol);
builder.addFragmentCode(
accessHelper.getAccessor('readValue', 'uSampler', dataType, numComponents));
builder.addFragmentCode(glsl_unnormalizeUint8);
builder.addFragmentCode(glsl_uintleToFloat);
builder.addOutputBuffer('vec4', 'v4f_fragData0', 0);
builder.addOutputBuffer('vec4', 'v4f_fragData1', 1);
builder.addOutputBuffer('vec4', 'v4f_fragData2', 2);
builder.addOutputBuffer('vec4', 'v4f_fragData3', 3);
builder.addOutputBuffer('vec4', 'v4f_fragData4', 4);
builder.addOutputBuffer('vec4', 'v4f_fragData5', 5);
builder.setFragmentMain(`
uint32_t value = readValue(uOffset);
v4f_fragData4 = packFloatIntoVec4(uintleToFloat(value.value.xyz));
v4f_fragData5 = packFloatIntoVec4(all(equal(value.value, uExpected)) ? 1.0 : 0.0);
value.value = unnormalizeUint8(value.value);
v4f_fragData0 = packFloatIntoVec4(value.value.x);
v4f_fragData1 = packFloatIntoVec4(value.value.y);
v4f_fragData2 = packFloatIntoVec4(value.value.z);
v4f_fragData3 = packFloatIntoVec4(value.value.w);
`);
tester.build();
let {shader} = tester;
shader.bind();
accessHelper.setupTextureLayout(gl, shader, layout);
const textureUnit = shader.textureUnit(textureUnitSymbol);
let texture = gl.createTexture();
tester.registerDisposer(() => {
gl.deleteTexture(texture);
});
gl.bindTexture(gl.TEXTURE_2D, texture);
setOneDimensionalTextureData(gl, layout, format, data);
gl.bindTexture(gl.TEXTURE_2D, null);
function testOffset(x: number) {
let value = data[x];
gl.uniform1f(shader.uniform('uOffset'), x);
gl.uniform4fv(shader.uniform('uExpected'), setVec4FromUint32(new Float32Array(4), value));
gl.activeTexture(gl.TEXTURE0 + textureUnit);
gl.bindTexture(gl.TEXTURE_2D, texture);
tester.execute();
gl.bindTexture(gl.TEXTURE_2D, null);
let actual = new Float32Array(4);
let expected = new Float32Array(4);
for (let i = 0; i < 4; ++i) {
actual[i] = tester.readFloat(i);
expected[i] = (value >>> (8 * i)) & 0xFF;
}
for (let i = 0; i < 4; ++i) {
expect(actual[i]).toBe(
expected[i],
`offset = ${x}, value = ${x}, actual = ${Array.from(actual)}, expected = ${
Array.from(expected)}`);
}
expect(tester.readFloat(4))
.toBe(value, `uint24le value != expected, offset = ${x}, value = ${x}`);
expect(tester.readFloat(5))
.toBe(1.0, `uExpected != value in shader, offset = ${x}, value = ${x}`);
}
testOffset(255 /*+ 256 * 256 * 9*/);
for (let i = 0; i < 100; ++i) {
testOffset(i);
}
const COUNT = 100;
for (let i = 0; i < COUNT; ++i) {
let offset = Math.floor(Math.random() * data.length);
testOffset(offset);
}
});