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Advanced GPU optimization techniques in Unity 6 • Insights from Unite 2024

PreMortem.Games

Another essential tool, the Shader Graph heatmap, provides a visual estimate of the cost associated with different Shader Graph nodes. Developers can leverage this feedback to make informed decisions when optimizing shader programs. Unity introduced Solid Angle Culling as an optimization to mitigate this overhead.

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Realistic Lighting in Justice with Mesh Shading

Nvidia

Recently, NetEase introduced Mesh Shader support to Justice. Soon we found we can combine Mesh Shaders with auto-generated LODs to achieve almost only-resolution-relevant rendering complexity, instead of polygon number. With so much potential of Mesh Shader, we conceive that it would be the main stream of future games.

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Godot 4.0 optimization progress report

Mircosoft Game Dev

Before getting into the GPU side, several optimizations have been done on the CPU side: Culling is now done in a brute-force way which is extremely cache efficient. Everything in the main frame is culled at the same time, objects, light cascades, SDFGI cascades, etc. These test do culling on 10k objects.

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Best Practices for Using NVIDIA RTX Ray Tracing (Updated)

Nvidia

It can be directly in the AS build calls or in some related task like the culling of the objects. Cull instances for TLAS. Instead, cull instances depending on the situation. For example, consider culling based on an expanded camera frustum. Moving the CPU work to one or more worker threads is potentially beneficial.

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Godot for AA/AAA game development - What's missing?

Mircosoft Game Dev

using data oriented algorithms to process the culling of objects and both secondary command buffers and automatic batching to efficiently submit the draw primitives. When doing tasks such as shader editing, VFX (particles) or animation, there is a large difference between Godot and engines such as Unreal. Specialized artist UIs.

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Practical Use of Render Textures

The Knights of Unity

For shaders, I used Amplify Shader Editor to add some visual effects on top of the render texture. I have also set up Culling Mask so that the camera captures only the things with the correct layer. Then I’ve put the recorded render texture to a Standard Shader. Then the texture is plugged into the created shader.

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New improvements for GPUParticles in Godot 4.0

Mircosoft Game Dev

GPUParticles : Processes particles on GPU, allows very large amount of particles at little cost, and with ability to write custom particle shaders. x and the shader used is almost identical (should be easy to port). It can also be done from within a particle shader itself by chaining another particle system as a sub-emitter.