本文整理汇总了TypeScript中neuroglancer/webgl/shader.ShaderBuilder.addFragmentCode方法的典型用法代码示例。如果您正苦于以下问题:TypeScript ShaderBuilder.addFragmentCode方法的具体用法?TypeScript ShaderBuilder.addFragmentCode怎么用?TypeScript ShaderBuilder.addFragmentCode使用的例子?那么, 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/shader.ShaderBuilder
的用法示例。
在下文中一共展示了ShaderBuilder.addFragmentCode方法的10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: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
let {textureAccessHelper} = this;
builder.addFragmentCode(
textureAccessHelper.getAccessor('readVolumeData', 'uVolumeChunkSampler', this.dataType));
let {numChannels} = this;
if (numChannels > 1) {
builder.addUniform('highp int', 'uChannelStride');
builder.addFragmentCode(`
highp int getChannelOffset(highp int channelIndex) {
return channelIndex * uChannelStride;
}
`);
} else {
builder.addFragmentCode(`highp int getChannelOffset(highp int channelIndex) { return 0; }`);
}
const shaderType = getShaderType(this.dataType);
builder.addFragmentCode(`
${shaderType} getDataValue (highp int channelIndex) {
highp ivec3 p = getPositionWithinChunk();
return readVolumeData(ivec3(p.x, p.y, p.z + getChannelOffset(channelIndex)));
}
`);
}
示例2: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
let {textureAccessHelper} = this;
textureAccessHelper.defineShader(builder);
builder.addFragmentCode(
textureAccessHelper.getAccessor('readVolumeData', 'uVolumeChunkSampler', this.dataType));
let {numChannels} = this;
if (numChannels > 1) {
builder.addUniform('highp float', 'uChannelStride');
builder.addFragmentCode(`
float getChannelOffset(int channelIndex) {
return float(channelIndex) * uChannelStride;
}
`);
} else {
builder.addFragmentCode(`float getChannelOffset(int channelIndex) { return 0.0; }`);
}
builder.addFragmentCode(`
float getIndexIntoChunk (int channelIndex) {
vec3 chunkDataPosition = getPositionWithinChunk();
return chunkDataPosition.x + uChunkDataSize.x * (chunkDataPosition.y + uChunkDataSize.y * chunkDataPosition.z) + getChannelOffset(channelIndex);
}
`);
const shaderType = getShaderType(this.dataType);
builder.addFragmentCode(`
${shaderType} getDataValue (int channelIndex) {
return readVolumeData(getIndexIntoChunk(channelIndex));
}
`);
}
示例3: ShaderBuilder
`elementWiseTextureShader:${numTextures}:${getObjectId(shaderModule)}`, () => {
let builder = new ShaderBuilder(gl);
builder.addVarying('vec2', 'vTexCoord');
builder.addUniform('sampler2D', 'uSampler', numTextures);
builder.addInitializer(shader => {
let textureIndices: number[] = [];
for (let i = 0; i < numTextures; ++i) {
textureIndices[i] = i;
}
gl.uniform1iv(shader.uniform('uSampler'), textureIndices);
});
for (let i = 0; i < numTextures; ++i) {
builder.addFragmentCode(`
vec4 getValue${i}() {
return texture2D(uSampler[${i}], vTexCoord);
}
`);
}
builder.addUniform('mat4', 'uProjectionMatrix');
builder.require(shaderModule);
builder.addAttribute('vec4', 'aVertexPosition');
builder.addAttribute('vec2', 'aTexCoord');
builder.setVertexMain(
'vTexCoord = aTexCoord; gl_Position = uProjectionMatrix * aVertexPosition;');
return builder.build();
});
示例4: defineShader
protected defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
builder.addUniform('highp float', 'uOpacity');
builder.addFragmentCode(`
void emitRGBA(vec4 rgba) {
emit(vec4(rgba.rgb, rgba.a * uOpacity));
}
void emitRGB(vec3 rgb) {
emit(vec4(rgb, uOpacity));
}
void emitGrayscale(float value) {
emit(vec4(value, value, value, uOpacity));
}
void emitTransparent() {
emit(vec4(0.0, 0.0, 0.0, 0.0));
}
`);
builder.addFragmentCode(glsl_COLORMAPS);
builder.setFragmentMainFunction(FRAGMENT_MAIN_START + '\n' + this.fragmentMain.value);
}
示例5: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
builder.addUniform('highp vec3', 'uChunkDataSize');
// [ 1.0/dataPointsPerTextureWidth, 1.0/numDataPoints ]
builder.addUniform('highp vec2', 'uUncompressedTextureAccessCoefficients');
builder.addFragmentCode(`
vec3 getPositionWithinChunk () {
return floor(min(vChunkPosition * uChunkDataSize, uChunkDataSize - 1.0));
}
vec2 getDataTextureCoords () {
vec3 chunkDataPosition = getPositionWithinChunk();
float offset = chunkDataPosition.x + uChunkDataSize.x * (chunkDataPosition.y + uChunkDataSize.y * chunkDataPosition.z);
return vec2(fract(offset * uUncompressedTextureAccessCoefficients.x),
offset * uUncompressedTextureAccessCoefficients.y);
}
`);
switch (this.dataType) {
case DataType.UINT8:
case DataType.FLOAT32:
builder.addFragmentCode(`
float getDataValue () {
return texture2D(uVolumeChunkSampler, getDataTextureCoords()).x;
}
`);
break;
case DataType.UINT32:
builder.addFragmentCode(glsl_uint64);
builder.addFragmentCode(`
uint64_t getDataValue () {
uint64_t value;
vec2 texCoords = getDataTextureCoords();
value.low = texture2D(uVolumeChunkSampler, texCoords);
value.high = vec4(0, 0, 0, 0);
return value;
}
`);
break;
case DataType.UINT64:
builder.addFragmentCode(glsl_uint64);
builder.addFragmentCode(`
uint64_t getDataValue () {
uint64_t value;
vec2 texCoords = getDataTextureCoords();
value.low = texture2D(uVolumeChunkSampler, texCoords);
value.high = texture2D(uVolumeChunkSampler, vec2(texCoords.x + 0.5 * uUncompressedTextureAccessCoefficients.x, texCoords.y));
return value;
}
`);
break;
}
}
示例6: defineShader
defineShader(builder: ShaderBuilder) {
builder.addUniform('highp vec4', 'uColor');
builder.addUniform('highp vec4', 'uColorSelected');
builder.addUniform('highp uint', 'uSelectedIndex');
builder.addVarying('highp vec4', 'vColor');
// Transform from camera to clip coordinates.
builder.addUniform('highp mat4', 'uProjection');
builder.addUniform('highp uint', 'uPickID');
builder.addVarying('highp uint', 'vPickID', 'flat');
builder.addVertexCode(`
highp uint getPickBaseOffset() { return uint(gl_InstanceID) * ${this.pickIdsPerInstance}u; }
`);
builder.addFragmentCode(`
void emitAnnotation(vec4 color) {
emit(color, vPickID);
}
`);
}
示例7: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
this.textureAccessHelper.defineShader(builder);
let local = (x: string) => 'compressedSegmentationChunkFormat_' + x;
builder.addUniform('highp vec3', 'uSubchunkGridSize');
builder.addUniform('highp vec3', 'uSubchunkSize');
builder.addFragmentCode(glsl_getFortranOrderIndexFromNormalized);
const {dataType} = this;
const glslType = GLSL_TYPE_FOR_DATA_TYPE.get(dataType);
if (dataType === DataType.UINT64) {
builder.addFragmentCode(glsl_uint64);
} else {
builder.addFragmentCode(glsl_uint32);
}
let fragmentCode = `
vec4 ${local('readTextureValue')}(float offset) {
vec4 result;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, offset, result);
return result;
}
float ${local('getChannelOffset')}(int channelIndex) {
if (channelIndex == 0) {
return ${this.numChannels}.0;
}
vec4 v = ${local('readTextureValue')}(float(channelIndex));
return v.x * 255.0 + v.y * 255.0 * 256.0 + v.z * 255.0 * 256.0 * 256.0;
}
${glslType} getDataValue (int channelIndex) {
vec3 chunkPosition = getPositionWithinChunk();
// TODO: maybe premultiply this and store as uniform.
vec3 subchunkGridPosition = floor(chunkPosition / uSubchunkSize);
float subchunkGridOffset = getFortranOrderIndex(subchunkGridPosition, uSubchunkGridSize);
float channelOffset = ${local('getChannelOffset')}(channelIndex);
// TODO: Maybe just combine this offset into subchunkGridStrides.
float subchunkHeaderOffset = subchunkGridOffset * 2.0 + channelOffset;
vec4 subchunkHeader0 = ${local('readTextureValue')}(subchunkHeaderOffset);
vec4 subchunkHeader1 = ${local('readTextureValue')}(subchunkHeaderOffset + 1.0);
float outputValueOffset = dot(subchunkHeader0.xyz, vec3(255, 256 * 255, 256 * 256 * 255)) + channelOffset;
float encodingBits = subchunkHeader0[3] * 255.0;
if (encodingBits > 0.0) {
vec3 subchunkPosition = floor(min(chunkPosition - subchunkGridPosition * uSubchunkSize, uSubchunkSize - 1.0));
float subchunkOffset = getFortranOrderIndex(subchunkPosition, uSubchunkSize);
highp float encodedValueBaseOffset = dot(subchunkHeader1.xyz, vec3(255.0, 256.0 * 255.0, 256.0 * 256.0 * 255.0)) + channelOffset;
highp float encodedValueOffset = floor(encodedValueBaseOffset + subchunkOffset * encodingBits / 32.0);
vec4 encodedValue = ${local('readTextureValue')}(encodedValueOffset);
float wordOffset = mod(subchunkOffset * encodingBits, 32.0);
// If the value is in the first byte, then 0 <= wordOffset < 8.
// We need to mod by 2**encodedBits
float wordShifter = pow(2.0, -wordOffset);
float encodedValueMod = pow(2.0, encodingBits);
float encodedValueShifted;
if (wordOffset < 16.0) {
encodedValueShifted = dot(encodedValue.xy, vec2(255.0, 255.0 * 256.0));
} else {
encodedValueShifted = dot(encodedValue.zw, vec2(255.0 * 256.0 * 256.0, 255.0 * 256.0 * 256.0 * 256.0));
}
encodedValueShifted = floor(encodedValueShifted * wordShifter);
float decodedValue = mod(encodedValueShifted, encodedValueMod);
outputValueOffset += decodedValue * ${this.dataType === DataType.UINT64 ? '2.0' : '1.0'};
}
${glslType} result;
`;
if (dataType === DataType.UINT64) {
fragmentCode += `
result.low = ${local('readTextureValue')}(outputValueOffset);
result.high = ${local('readTextureValue')}(outputValueOffset+1.0);
`;
} else {
fragmentCode += `
result.value = ${local('readTextureValue')}(outputValueOffset);
`;
}
fragmentCode += `
return result;
}
`;
builder.addFragmentCode(fragmentCode);
}
示例8: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
this.textureAccessHelper.defineShader(builder);
let {numChannels} = this;
if (numChannels > 1) {
builder.addUniform('highp float', 'uChannelStride');
builder.addFragmentCode(`
float getChannelOffset(int channelIndex) {
return float(channelIndex) * uChannelStride;
}
`);
} else {
builder.addFragmentCode(`float getChannelOffset(int channelIndex) { return 0.0; }`);
}
builder.addFragmentCode(`
float getIndexIntoChunk (int channelIndex) {
vec3 chunkDataPosition = getPositionWithinChunk();
return chunkDataPosition.x + uChunkDataSize.x * (chunkDataPosition.y + uChunkDataSize.y * chunkDataPosition.z) + getChannelOffset(channelIndex);
}
`);
switch (this.dataType) {
case DataType.UINT8:
builder.addFragmentCode(glsl_uint8);
builder.addFragmentCode(`
uint8_t getDataValue (int channelIndex) {
uint8_t result;
vec4 temp;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, getIndexIntoChunk(channelIndex), temp);
result.value = temp.x;
return result;
}
`);
break;
case DataType.FLOAT32:
builder.addFragmentCode(glsl_float);
builder.addFragmentCode(`
float getDataValue (int channelIndex) {
vec4 temp;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, getIndexIntoChunk(channelIndex), temp);
return temp.x;
}
`);
break;
case DataType.UINT16:
builder.addFragmentCode(glsl_uint16);
builder.addFragmentCode(`
uint16_t getDataValue (int channelIndex) {
uint16_t result;
vec4 temp;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, getIndexIntoChunk(channelIndex), temp);
result.value = temp.xw;
return result;
}
`);
break;
case DataType.UINT32:
builder.addFragmentCode(glsl_uint32);
builder.addFragmentCode(`
uint32_t getDataValue (int channelIndex) {
uint32_t result;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, getIndexIntoChunk(channelIndex), result.value);
return result;
}
`);
break;
case DataType.UINT64:
builder.addFragmentCode(glsl_uint64);
builder.addFragmentCode(`
uint64_t getDataValue (int channelIndex) {
uint64_t result;
${this.textureAccessHelper.readTextureValue}(uVolumeChunkSampler, getIndexIntoChunk(channelIndex), result.low, result.high);
return result;
}
`);
break;
}
}
示例9: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
let local = (x: string) => 'compressedSegmentationChunkFormat_' + x;
builder.addUniform('highp vec2', 'uCompressedSegmentationTextureAccessCoefficients');
builder.addUniform('highp vec3', 'uSubchunkGridSize');
builder.addUniform('highp vec3', 'uChunkDataSize');
builder.addFragmentCode(glsl_getFortranOrderIndexFromNormalized);
builder.addFragmentCode(glsl_uint64);
// We add 0.5 to avoid being right at a texel boundary.
let fragmentCode = `
vec4 ${local('readTextureValue')}(float offset) {
offset += 0.5;
return texture2D(uVolumeChunkSampler,
vec2(fract(offset * uCompressedSegmentationTextureAccessCoefficients.x),
offset * uCompressedSegmentationTextureAccessCoefficients.y));
}
uint64_t getDataValue () {
const vec3 uSubchunkSize = ${vec3.str(this.subchunkSize)};
vec3 chunkPosition = getSubscriptsFromNormalized(vChunkPosition, uChunkDataSize);
// TODO: maybe premultiply this and store as uniform.
vec3 subchunkGridPosition = floor(chunkPosition / uSubchunkSize);
float subchunkGridOffset = getFortranOrderIndex(subchunkGridPosition, uSubchunkGridSize);
// TODO: Maybe just combine this offset into subchunkGridStrides.
float subchunkHeaderOffset = subchunkGridOffset * 2.0;
vec4 subchunkHeader0 = ${local('readTextureValue')}(subchunkHeaderOffset);
vec4 subchunkHeader1 = ${local('readTextureValue')}(subchunkHeaderOffset + 1.0);
float outputValueOffset = dot(subchunkHeader0.xyz, vec3(255, 256 * 255, 256 * 256 * 255));
float encodingBits = subchunkHeader0[3] * 255.0;
if (encodingBits > 0.0) {
vec3 subchunkPosition = floor(min(chunkPosition - subchunkGridPosition * uSubchunkSize, uSubchunkSize - 1.0));
float subchunkOffset = getFortranOrderIndex(subchunkPosition, uSubchunkSize);
highp float encodedValueBaseOffset = dot(subchunkHeader1.xyz, vec3(255.0, 256.0 * 255.0, 256.0 * 256.0 * 255.0));
highp float encodedValueOffset = floor(encodedValueBaseOffset + subchunkOffset * encodingBits / 32.0);
vec4 encodedValue = ${local('readTextureValue')}(encodedValueOffset);
float wordOffset = mod(subchunkOffset * encodingBits, 32.0);
// If the value is in the first byte, then 0 <= wordOffset < 8.
// We need to mod by 2**encodedBits
float wordShifter = pow(2.0, -wordOffset);
float encodedValueMod = pow(2.0, encodingBits);
float encodedValueShifted;
if (wordOffset < 16.0) {
encodedValueShifted = dot(encodedValue.xy, vec2(255.0, 255.0 * 256.0));
} else {
encodedValueShifted = dot(encodedValue.zw, vec2(255.0 * 256.0 * 256.0, 255.0 * 256.0 * 256.0 * 256.0));
}
encodedValueShifted = floor(encodedValueShifted * wordShifter);
float decodedValue = mod(encodedValueShifted, encodedValueMod);
outputValueOffset += decodedValue * ${this.dataType === DataType.UINT64 ? '2.0' : '1.0'};
}
uint64_t value;
value.low = ${local('readTextureValue')}(outputValueOffset);
`;
if (this.dataType === DataType.UINT64) {
fragmentCode += `
value.high = ${local('readTextureValue')}(outputValueOffset+1.0);
`;
} else {
fragmentCode += `
value.high = vec4(0.0, 0.0, 0.0, 0.0);
`;
}
fragmentCode += `
return value;
}
`;
builder.addFragmentCode(fragmentCode);
}
示例10: defineShader
defineShader(builder: ShaderBuilder) {
super.defineShader(builder);
let {textureAccessHelper} = this;
textureAccessHelper.defineShader(builder);
let local = (x: string) => 'compressedSegmentationChunkFormat_' + x;
builder.addUniform('highp ivec3', 'uSubchunkGridSize');
builder.addUniform('highp ivec3', 'uSubchunkSize');
builder.addFragmentCode(glsl_getFortranOrderIndex);
const {dataType} = this;
const glslType = getShaderType(dataType);
if (dataType === DataType.UINT64) {
builder.addFragmentCode(glsl_uint64);
} else {
builder.addFragmentCode(glsl_uint32);
}
builder.addFragmentCode(textureAccessHelper.getAccessor(
local('readTextureValue'), 'uVolumeChunkSampler', DataType.UINT32, 1));
let fragmentCode = `
uint ${local('getChannelOffset')}(int channelIndex) {
if (channelIndex == 0) {
return ${this.numChannels}u;
}
return ${local('readTextureValue')}(uint(channelIndex)).value;
}
${glslType} getDataValue (int channelIndex) {
ivec3 chunkPosition = getPositionWithinChunk();
// TODO: maybe premultiply this and store as uniform.
ivec3 subchunkGridPosition = chunkPosition / uSubchunkSize;
int subchunkGridOffset = getFortranOrderIndex(subchunkGridPosition, uSubchunkGridSize);
int channelOffset = int(${local('getChannelOffset')}(channelIndex));
// TODO: Maybe just combine this offset into subchunkGridStrides.
int subchunkHeaderOffset = subchunkGridOffset * 2 + channelOffset;
highp uint subchunkHeader0 = ${local('readTextureValue')}(uint(subchunkHeaderOffset)).value;
highp uint subchunkHeader1 = ${local('readTextureValue')}(uint(subchunkHeaderOffset + 1)).value;
highp uint outputValueOffset = (subchunkHeader0 & 0xFFFFFFu) + uint(channelOffset);
highp uint encodingBits = subchunkHeader0 >> 24u;
if (encodingBits > 0u) {
ivec3 subchunkPosition = chunkPosition - subchunkGridPosition * uSubchunkSize;
int subchunkOffset = getFortranOrderIndex(subchunkPosition, uSubchunkSize);
uint encodedValueBaseOffset = subchunkHeader1 + uint(channelOffset);
uint encodedValueOffset = encodedValueBaseOffset + uint(subchunkOffset) * encodingBits / 32u;
uint encodedValue = ${local('readTextureValue')}(encodedValueOffset).value;
uint wordOffset = uint(subchunkOffset) * encodingBits % 32u;
uint encodedValueShifted = encodedValue >> wordOffset;
uint decodedValue = encodedValueShifted - (encodedValueShifted >> encodingBits << encodingBits);
outputValueOffset += decodedValue * ${this.dataType === DataType.UINT64 ? '2u' : '1u'};
}
${glslType} result;
`;
if (dataType === DataType.UINT64) {
fragmentCode += `
result.value[0] = ${local('readTextureValue')}(outputValueOffset).value;
result.value[1] = ${local('readTextureValue')}(outputValueOffset+1u).value;
`;
} else {
fragmentCode += `
result.value = ${local('readTextureValue')}(outputValueOffset).value;
`;
}
fragmentCode += `
return result;
}
`;
builder.addFragmentCode(fragmentCode);
}