Gator Material Studio 1.2.1

Designer Patterns and Generators

• Fixed Brick Generator mortar thickness changing as row count increased.
• Improved Advanced Pattern Brick generation and staggered masonry behavior.
• Fixed Advanced Pattern Tile so it produces a distinct aligned tile/grid pattern.
• Fixed Polygon and Star patterns occasionally rendering as solid white.
• Added safeguards for extreme X/Y count differences that could cause generated patterns to disappear.
• Fixed centered and non-repeating patterns being incorrectly shifted by Seed values.

Procedural Noise

• Fixed Advanced Noise cases that could produce blank white output.
• Improved Spots, Dirt and Blue Noise generation to reduce visible grid and hash artifacts.
• Improved Blue Noise to reduce square lattice patterns and visible simplex-edge artifacts.
• Improved distinction between several procedural noise types.
• Fixed Moisture Noise so Octaves and Roughness correctly affect the result.
• Fixed Cells and Crystal Mode controls so available modes produce distinct results.
• Reduced unnecessary shader recompilation when adjusting common noise parameters.
• Scale, Roughness, Octaves and Seed can now update without repeatedly creating new rendering pipelines on supported noise nodes.

Splatter, Scatter and FX-Map

• Increased Splatter Count support to 256.
• Increased Shape Splatter v2 Count support to 256.
• Increased Scatter Splines on Splines Count support to 128.
• Increased FX-Map Iterations support to 8.
• Fixed Shape Splatter v2 X/Y flip controls.
• Fixed Shape Splatter v2 Mapping behavior.
• Fixed Shape Splatter v2 grid scattering being limited to an 8×8 layout.
• Added functional Collision Padding support to Shape Splatter v2.
• Improved Shape Splatter v2 ID Data so generated instances receive stable IDs.

Filters and Adjustments

• Fixed Radial Blur Amount = 0 so it produces a neutral result.
• Improved handling of zero-width procedural ranges.
• Fixed Advanced Adjustment Histogram Range and HDR Range behavior with identical or reversed range values.

SDF and Material Data

• Improved preservation of SDF metadata through operators and transform nodes.
• Fixed Material and Material ID being treated as equivalent metadata in some operations.
• Fixed the 3D Viewer Material ID channel using the incorrect data source.
• Improved SDF metadata propagation throughout Designer graphs.

Designer Node Behavior

• Corrected several options that previously produced identical behavior:
• 3D SDF Transform: Offset and Position Offset
• 3D SDF Transform: Rotate and Rotate Position
• 3D SDF Transform: Mirror and Symmetry
• Path Process: Vertex Processor and Vertex Processor Simple

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Mirror now performs left/right mirroring.

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Symmetry now performs both horizontal and vertical symmetry.

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Fixed output-port validation across supported Designer output ports.

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Removed the previous restrictive Text node character limit.

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Material Output

• Corrected outdated Material Output channel names:
• Sheen → Rim
• Sheen Tint → Rim Tint
• Subsurface → Subsurf Scatter

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Designer Graph Reliability

• Improved .gmsmat save reliability with safer transactional saving.
• Unknown or unsupported node types are no longer silently removed when loading a graph.
• Incompatible nodes now produce a clear compatibility error instead of modifying the graph without warning.
• Graph cycles are now rejected when connections are created.
• Improved general graph validation and compatibility handling.

Designer Node Library Cleanup

• Removed duplicate entries from the visible Designer node library.
• Existing registrations remain available internally to preserve compatibility with older projects.
• Nodes with genuinely different behavior remain available even when they share related implementations.

Designer Preview Performance

• Improved preview scheduling during continuous parameter editing.
• Continuous slider adjustments now refresh previews at a controlled rate instead of repeatedly postponing updates.
• Reduced unnecessary graph_changed processing during extended parameter adjustments.
• Runtime-updatable parameters retain responsive live feedback.
• Recompile-required parameters are rate-limited to reduce unnecessary work.
• Structural graph changes continue to use normal debounce behavior.
• Reduced unnecessary CPU and UI overhead while editing Designer materials.
• Material appearance and normal workflow remain unchanged.

RTX 50-Series / Blackwell Preview Improvements

• Further optimized the texture-backed Designer 3D preview path used to reduce stalls on newer NVIDIA GPUs.
• Reduced redundant shader, texture and material rebinding.
• Avoided unnecessary preview property updates when values have not changed.
• Existing material channels can reuse previously created shaders and rendering pipelines where possible.
• Reduced repeated Canvas pipeline compilation during procedural material editing.
• Improved handling of noise parameters that previously caused unnecessary shader regeneration.
• Added additional rendering diagnostics to help identify GPU and driver-specific preview stalls.
• These changes also improve preview efficiency on older supported GPUs.

Compatibility

Gator Material Studio 1.2.1 is a corrective update focused on Designer correctness, reliability and performance. Existing projects, materials, saved graphs and normal workflows remain compatible with 1.2.0.