TextureRamp Class
Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScript (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.
Interface for handling ramp textures. This class lets the user store 2d curves in a form of a texture (convert vectors to raster data).
Ramp textures can be used for color variation in the particles_base material of Particle Systems or in other custom materials.
You can set up to 4 channels for the ramp texture.
TextureRamp Class
Members
static TextureRamp ( int num_channels, int resolution, int flags ) #
Sets resolution, number of channels and texture flags for this TextureRamp instance. The pointer to the ramp texture is set to null and curves are marked for an update.Arguments
- int num_channels - Number of texture channels.
- int resolution - Width resolution of the ramp texture.
- int flags - Texture flags.
TextureRamp ( ) #
Texture getTexture ( ) #
Creates a new texture and updates hashes for curves, if required. Returns a pointer to the texture or null if the texture was not created.void releaseTexture ( ) #
Deletes the texture and its pointer.void copy ( TextureRamp src_texture_ramp ) #
Copies the data of a source ramp texture to the texture.Arguments
- TextureRamp src_texture_ramp - Source ramp texture.
TextureRamp clone ( ) #
Duplicates the ramp texture and returns a pointer to the copy.Curve2d getCurve ( int channel ) #
Returns a pointer to the Curve2d for the specified channel.Arguments
- int channel - Required channel.
Return value
Pointer to a Curve2d object.void setNumChannels ( int channels ) #
Sets the new number of channels for the texture.Arguments
- int channels - Number of texture channels.
int getNumChannels ( ) #
Returns the number of texture channels.void setResolution ( int resolution ) #
Sets the width resolution for the texture.Arguments
- int resolution - Texture width resolution.
int getResolution ( ) #
Returns the texture width resolution.void setFlags ( int flags ) #
Sets texture flags.Arguments
- int flags - Texture flags.
int getFlags ( ) #
Returns texture flags.void setDefaultCurve ( int channel, const Curve2d default_curve ) #
Resets a curve for the given channel to a default one.Arguments
- int channel - R, G, B, or A channel set by the corresponding value from 0 to 3.
- const Curve2d default_curve - A curve to be used as the default one.
int isDefault ( int channel ) #
Returns a value indicating if the value of the given curve channel is the default one which was previously set via setDefaultCurve.Arguments
- int channel - R, G, B, or A channel set by the corresponding value from 0 to 3.
Return value
1 if the curve value is the default one set via setDefaultCurve, otherwise 0.int isDefaultAll ( ) #
Returns a value indicating if the values of all curve channels are the default ones which were previously set via setDefaultCurve.Return value
true if the values of all curve channels are the default ones set via setDefaultCurve, otherwise false.void save ( Xml xml ) #
Saves the ramp texture data to the given Xml node.Arguments
- Xml xml - Target Xml node.
void load ( const Xml xml ) #
Loads the ramp texture data from the given Xml node.Arguments
- const Xml xml - Source Xml node containing ramp texture data.
void saveState ( const Stream stream ) #
Saves the state of the ramp texture into a binary stream.Example using saveState() and restoreState() methods:
Source code (UnigineScript)
// initialize a node and set its state
//...//
// save state
Blob blob_state = new Blob();
ramp.saveState(blob_state);
// change state
//...//
// restore state
blob_state.seekSet(0); // returning the carriage to the start of the blob
ramp.restoreState(blob_state);Arguments
- const Stream stream - The stream to save the ramp texture state data.
void restoreState ( const Stream stream ) #
Restores the state of the ramp texture from the binary stream.Example using saveState() and restoreState() methods:
Source code (UnigineScript)
// initialize a node and set its state
//...//
// save state
Blob blob_state = new Blob();
ramp.saveState(blob_state);
// change state
//...//
// restore state
blob_state.seekSet(0); // returning the carriage to the start of the blob
ramp.restoreState(blob_state);Arguments
- const Stream stream - The stream that stores the ramp texture state data.
Last update:
2022-12-14
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