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Hi guys this is another video of hlsl. in this video i have converted shadertoy glsl code into hlsl code for ue4 material custom node and ue4 Niagara hlsl node. i have describe what changes i made to convert this code. i hope it will help you if you r also learning hlsl like me.

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Video Title: Converting GLSL to HLSL for Unreal Engine Niagara Particles and Materials

Description:
In this video, Asif Ali from CGHOW demonstrates how to convert GLSL code into HLSL for use in Unreal Engine’s Niagara particle system and materials. This tutorial is not a typical step-by-step guide but focuses on learning HLSL by converting existing code from ShaderToy to work within Unreal Engine. The video covers the key differences between GLSL and HLSL, including syntax adjustments, how to use custom parameters, and how to apply them in Niagara. Learn how Asif applies these changes to create a dynamic particle effect.

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Key Points:

• Overview of the Code:
  • Introduction to GLSL code from ShaderToy and how it’s converted into HLSL for Unreal Engine.
  • The code focuses on dynamic parameters for zoom, leaf count, and height.
• Material Setup:
  • Use HLSL code in the Unreal Engine material system to create the particle effect.
  • Understand how to implement background color, leaf count, and zoom parameters.
  • Modify the HLSL code to use larp instead of mix for interpolation.
  • Explanation of time (t) and resolution (r) handling in Unreal Engine.
• Niagara Particle System Integration:
  • How to link HLSL material parameters with Niagara particle system parameters.
  • Modify grid UVs, leaf start/end, speed, and zoom parameters directly in Niagara.
  • Show how changes in the material impact the particle system, with visual demonstrations.
• Code Comparison:
  • Explanation of differences between GLSL and HLSL code, such as changing mix to larp and adjusting texture coordinates.
  • How to adapt GLSL’s time (iTime) to Unreal’s t for smooth transitions.
  • Adjustments for resolution and vector definitions between the two shaders.
• Custom Parameters:
  • How to convert hardcoded values into parameters for dynamic control in Unreal Engine.
  • Example of how changing a single parameter (like zoom) affects the entire particle system in real-time.

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Additional Notes:

• Practical Application:
  • The focus is on learning through modification of existing code rather than creating from scratch.
  • This method helps in understanding how HLSL can be used effectively in Unreal Engine.
• Code Download:
  • Viewers can download the modified files (material and particle system) from the provided Patreon link to experiment and tweak the effect.
• Learning HLSL:
  • The process of converting GLSL to HLSL is a valuable exercise for anyone wanting to deepen their understanding of shaders and material creation in Unreal Engine.

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Tags:

#UnrealEngine #NiagaraVFX #HLSL #ShaderToy #VFXTutorial #NiagaraParticles #GameDevelopment #CGHOW #MaterialEditor #ParticleSystems

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Call to Action:
If you found this video helpful, don’t forget to like, comment, and subscribe to CGHOW for more tutorials. Share your thoughts or questions in the comments, and join me as we continue exploring HLSL and Unreal Engine VFX. Keep learning and stay creative!