Reference Material Manager Shaders Channel Shaders Bitmap Shader
Bitmap Shader Basic Shader AnimationShader Properties
The Sampling value is described later.
The File box displays the name of the texture and, if used, the absolute path to the texture as well.
This option lets you show or hide layers or alpha channels when working with textures in Photoshop/b3d format. This saves you from having to constantly return to an external application to display or hide layers as needed.
Clicking on the Select... button will open the following dialog window:
Use the first 5 options to select the type of layers/layersets or alpha channels should be displayed in the field below. All layers/layersets and alpha channels that were saved in Photoshop/BodyPaint 3D will be shown in the display field and can be displayed by double clicking on the image (use the SHIFT key to make multiple selections). At the top left of the dialog window a composite of all selected layers is displayed - including all mix modes.
What’s meant by ...the first 5 options...?
- Layers/Layersets: The various layers or layersets that make up an image.
- Layer Alpha: The selected layers will be converted to an alpha channel: Layer content will be white, transparent areas will be marked in black.
- Layer Masks: An alpha channel belonging to a given layer.
- Alpha Channels: An alpha channel that affects the entire image.
- Generate Alpha: This option is only relevant if using a bitmap in a layer shader. The shader will be viewed internally as an alpha channel. This lets you layer the shader over other layers. Set the bitmap’s MIP interpolation to 0, otherwise color seams may result.
Caution: The selected alpha channels will be displayed as grayscale images and have no effect on the RGB value of the texture (don’t mask anything out). Only the following can be extracted: color, masks or alpha channels.
Show Layer Content
Use this option to define whether or not the layers or alpha channels visible in the display field should be included in the preview.
The following four settings are for fine-tuning loaded textures. The original bitmap will not be altered.
Use this setting to adjust the brightness of HDRI as well as normal images.
Use this setting to define a textures gamma value. A texture’s gamma value defines how it will be analyzed with regard to the defined brightness value. For example, 2 pixels withing the texture with brightness values of 50% and 75%, respectively, will not necessarily be displayed as such on the monitor or calculated as such when analyzed by the Material Manager. This will be dependant upon the defined gamma value. In most cases, though, you won’t have to change the gamma value setting.
Black Point [0..100]
White Point [0..100]
These points define the darkest and brightest points, respectively and save this information to a histogram. If one of these points is subsequently moved, the dark and light levels will be scaled accordingly.
Clicking this button will reset the values for exposure, gamma, black point and white point to default values (0, 2.2, 0 and 1, respectively).