Constructor
new Framebuffer(handler, optionsopt)
| Name | Type | Attributes | Description |
|---|---|---|---|
handler | Handler | WebGL handler. | |
options | IFrameBufferParams | <optional> | Framebuffer options: |
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Methods
bindOutputTexture(texture, glAttachmentopt)
Bind buffer texture.
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
texture | WebGLTexture | Output texture. | ||
glAttachment | number | <optional> | 0 | color attachment index. |
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getImage() → {HTMLImageElement}
Gets JavaScript image that in the framebuffer.
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- Type:
- HTMLImageElement
init()
Framebuffer initialization.
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readAllPixels(res, attachmentIndexopt)
Reads all pixels(RGBA colors) from framebuffer.
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
res | TypedArray | Result array. | ||
attachmentIndex | number | <optional> | 0 | color attachment index. |
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readData(nx, ny, outData, attachmentIndexopt) → {void}
Reads pixel data from the buffer at the specified normalized coordinates.
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
nx | number | Normalized X coordinate in the range [0, 1], multiplied by the buffer width. | ||
ny | number | Normalized Y coordinate in the range [0, 1], multiplied by the buffer height. | ||
outData | NumberArray4 | | Output array where the RGBA pixel values will be written. | ||
attachmentIndex | number | <optional> | 0 | Index of the color attachment (buffer) to read from. |
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- Type:
- void
const color = new Float32Array(4);
framebuffer.readData(0.5, 0.5, color); // Reads the color at the center of the bufferreadPixels(res, nx, ny, wopt, hopt, indexopt)
Gets pixel RGBA color from framebuffer by coordinates.
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
res | TypedArray | Normalized x - coordinate. | ||
nx | number | Normalized x - coordinate. | ||
ny | number | Normalized y - coordinate. | ||
w | number | <optional> | 1 | Normalized width. |
h | number | <optional> | 1 | Normalized height. |
index | number | <optional> | 0 | color attachment index. |
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