Changelog

2018.3.2

• lib-sparse.glsl: Sampling functions uses texture derivatives instead simple mipmap level. It's a requirement for the support of anisotropy sampling. Sampling functions signatures are not modified.
• lib-pom.glsl: the getParallaxOffset function signature has changed in order to uses texture derivatives

2018.3.0

• Add a new lib-pbr-aniso.glsl library to help visualizing anisotropic specular highlight
• Add a new lib-sparse.glsl library to help channel sampling by taking care of mipmaps availability
• Update shader libraries interfaces to take care of this safe sampling
• Deprecation: The previous functions based on the vec2 texture coordinates and the texture sampler have been deprecated (please use new signatures)
• lib-pom.glsl: Add a applyParallaxOffset function to simplify to use of parallax occlusion effect
• lib-random.glsl: Add a Blue Noise random value generator and temporal alternatives
• lib-sampler.glsl: Split all channel sampling helpers to have both value interpretation and sampling helpers

2018.2.0

• Surface shader API change: the shade function signature has changed, see surface-shader.glsl
• The shadeShadow function is no longer used and can safely be removed from custom surface shaders
• Add Subsurface Scattering support, see surface-shader.glsl and lib-sss.glsl for details
• lib-pbr.glsl: the pbrComputeBRDF function has been removed. See pbr-metal-rough.glsl example to know how to use the library now
• New engine parameters have been added: texture_blue_noise, aspect_ratio, camera_vp_matrix_inverse, environment_exposure, environment_rotation, fovy, main_light and screen_size. See all-engine-params.glsl for details
• Add the description metadata to provide tooltips for custom shader parameters

2017.4.2

• Fix missing shaders in documentation samples (pixelated and toon shaders)
• Fix dithering for high resolution
  • lib-bayer.glsl: bayerMatrix8() return valid values for coords > 4k

2017.4.1

• Fix pbr-coated shader
  • lib-vectors.glsl: tangentSpaceToWorldSpace() and worldSpaceToTangentSpace() outputs are now normalized

2017.4.0

• Incorrect specular reflection in the 2D view for certain meshes

2017.3.1

• Cheaper dithering

2017.2.0

• Remove interpolated tbn normalization to match Substance Designer and bakers behavior
• [Viewport] Replace Hammersley table by a Fibonacci spiral

2.6.0

• Fix shaders blending and culling modes
• Rework dithering. Now if we have a render in linear, we apply it after the color profile

2.5.0

• Add support for Color Profiles (LUT) in viewports (Optional sRGB conversion)
• Add dithering to opacity in shaders
• Add parallax occlusion mapping to PBR shaders
• Add a way to hide custom params from the default shader UI
• Add a link to channel tags list in layering shader documentation
• Replace 'channel_ao' tag by 'channel_ambientocclusion'
• [Viewport] Some normal maps have clamped values which appear as artifacts
• Fix available channels in shaders doc
• Allow to define a custom shader UI
• Add a standard custom shader UI for material layering shaders
• Custom UI files are now searched relatively to a shaders/custom-ui folder in the shelves (like the mdl)
• Use the specular level channel in default shaders
• Fix vec3 shader params example
• Upgrade Painter to OpenGL core profile

2.4.0

• Fix the difference on the normal map combined exported and the one displayed in the viewport

2.2.0

• Add support for bindless textures in generic material for non Document textures
• Update custom shader sliders documentation
• Allow to define step precision for sliders
• Documentation for dynamic material layering

2.1.1

• Add a 'RGB2Gray' function in lib-utils

2.1.0

• Allow to define groups for shader parameters and materials/masks
• Add missing channels in documentation ('ao', 'diffuse', 'specularlevel')

2.0.4

• Normal unpack function incorrect with low alpha values
• Allow to read mesh vertex colors in custom shader
• [Viewport] Stretched environment map on some computers

2.0.0

• Allow to override Normal/AO additional maps by dedicated channel
• Change Height2Normal function to use Sobel method
• Add the possibility to define a mdl per shader
• Add a new mdl folder in the shelf
• Add diffuse and specular level channel presets
• Documentation update for tone mapping
• Fix reflections when in orthographic mode
• Fixed the vertical white glitch appearing at a specific location on the envmap
• Allow to define 'default_color' for texture params

1.7.0

• Allow to sample external textures (from shelf)

1.6.0

• Expose gamma/tonemapping function to allow to override them
• Expose multiple texcoords

1.5.0

• Add line number and filename in shader error report

1.4.1

• All sRGB conversions follow the sRGB standard, except those done in the shaders that have close approximation
• Height channel to Normal map is converted to the wrong color space

1.4.0

• Add ambient occlusion channel
• Add new workflow for normal edition
• Add 'or' expression syntax for texture related auto parameters
• Fix pbr shader for Intel gpu on OSX

1.3.4

• Allow to interpolate binormals in fragment shader
• Fix Mikkt tangent space

1.3.3

• Fix spherical harmonics producing negative light intensity
• Exposure computation is different from Substance Designer (and fix exposure slider)
• Shadows should not be visible on 100% metallic surface

1.3.0

• Add shadow function
• Add support for opacity ('alpha_test' and 'alpha_blend')

1.2.0

• Ability to set required openGL states into custom shaders
• Fix inverted bitangents
• Add support for normal channel

1.0

• Add support for custom shaders