Core Constants

These constants define generic rendering and controls features.

Revision Number


    v3d.REVISION

The current Verge3D revision number. See this page for more info on how to interpret this value.

Color Spaces


    v3d.NoColorSpace
    v3d.SRGBColorSpace
    v3d.LinearSRGBColorSpace

NoColorSpace defines no specific color space.

SRGBColorSpace (“sRGB”) refers to the color space defined by the Rec. 709 primaries, D65 white point, and nonlinear sRGB transfer functions. sRGB is the default color space in CSS, and is often found in color palettes and color pickers. Colors expressed in hexadecimal or CSS notation are typically in the sRGB color space.

LinearSRGBColorSpace (“Linear-sRGB”) refers to the sRGB color space (above) with linear transfer functions. Linear-sRGB is the working color space in Verge3D, used throughout most of the rendering process. RGB components found in Verge3D materials and shaders are in the Linear-sRGB color space.

For further background and usage, see Color management.

Mouse Buttons


    v3d.MOUSE.LEFT
    v3d.MOUSE.MIDDLE
    v3d.MOUSE.RIGHT
    v3d.MOUSE.ROTATE
    v3d.MOUSE.DOLLY
    v3d.MOUSE.PAN

The constants LEFT and ROTATE have the same underlying value. The constants MIDDLE and DOLLY have the same underlying value. The constants RIGHT and PAN have the same underlying value.

Touch Actions


    v3d.TOUCH.ROTATE
    v3d.TOUCH.PAN
    v3d.TOUCH.DOLLY_PAN
    v3d.TOUCH.DOLLY_ROTATE

IBL Environment Modes


    v3d.IBLEnvironmentPMREM
    v3d.IBLEnvironmentProbeCubemap
    v3d.IBLEnvironmentProbe
    v3d.IBLEnvironmentNone

Type of image-based lighting: PMREM, Light Probe + Cubemap, Light Probe only, or none.

Buffer Attribute Usage Constants

The usage constants can be used to provide a hint to the API regarding how the geometry buffer attribute will be used in order to optimize performance.

Code Example


    const geometry = new v3d.BufferGeometry();
    const positionAttribute = new v3d.BufferAttribute(array, 3 , false);
    positionAttribute.setUsage(v3d.DynamicDrawUsage);
    geometry.setAttribute('position', positionAttribute);

Examples

materials / buffergeometry / drawrange

Geometry Usage


    v3d.StaticDrawUsage
    v3d.DynamicDrawUsage
    v3d.StreamDrawUsage

    v3d.StaticReadUsage
    v3d.DynamicReadUsage
    v3d.StreamReadUsage

    v3d.StaticCopyUsage
    v3d.DynamicCopyUsage
    v3d.StreamCopyUsage

For more detailed information on each of these constants see this OpenGL documentation.

Source

For more info on how to obtain the source code of this module see this page.