| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| namespace UnityEngine.Rendering.Universal | |
| { | |
| public enum BufferType | |
| { | |
| CameraColor, | |
| Custom | |
| } | |
| public class DrawFullScreenFeature : ScriptableRendererFeature | |
| { |
| // The following code is licensed under the MIT license: https://gist.github.com/TheRealMJP/bc503b0b87b643d3505d41eab8b332ae | |
| // Samples a texture with Catmull-Rom filtering, using 9 texture fetches instead of 16. | |
| // See http://vec3.ca/bicubic-filtering-in-fewer-taps/ for more details | |
| float4 SampleTextureCatmullRom(in Texture2D<float4> tex, in SamplerState linearSampler, in float2 uv, in float2 texSize) | |
| { | |
| // We're going to sample a a 4x4 grid of texels surrounding the target UV coordinate. We'll do this by rounding | |
| // down the sample location to get the exact center of our "starting" texel. The starting texel will be at | |
| // location [1, 1] in the grid, where [0, 0] is the top left corner. | |
| float2 samplePos = uv * texSize; |
| /**** Minimal OpenVR example : outputs textures to the headset, a different color in each eye. No head tracking or input anywhere. Bare minimum. ****/ | |
| /// header only extension loader and object oriented bindings -- ref : https://github.com/VirtuosoChris/glhpp | |
| #define GL_ALT_GL_API 1 | |
| #define GL_ALT_GLES_API 2 | |
| #include <glalt/gl4.5.h> // opengl api | |
| #include <glalt/glext.h> | |
| #include <opengl.hpp> // object oriented bindings |
| The documentation for Gerrit when it comes to formatting comments is quite lacking. Here is short list created by trial and error and looking at the source code in: | |
| ./gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtml.java | |
| Lists: | |
| * List item 1 | |
| * List item 2 | |
| - List item 1 | |
| - List item 2 |
Minimal D3D11 reference implementation: An uncluttered Direct3D 11 setup & basic rendering primer / API familiarizer. Complete, runnable Windows application contained in a single function and laid out in a linear, step-by-step fashion that should be easy to follow from the code alone. ~215 LOC. No modern C++ / OOP / obscuring cruft. View on YouTube
| #include <stdio.h> | |
| #include "bgfx/bgfx.h" | |
| #include "bgfx/platform.h" | |
| #include "bx/math.h" | |
| #include "GLFW/glfw3.h" | |
| #define GLFW_EXPOSE_NATIVE_WIN32 | |
| #include "GLFW/glfw3native.h" | |
| #define WNDW_WIDTH 1600 | |
| #define WNDW_HEIGHT 900 |
| using System; | |
| using System.Collections.Generic; | |
| using System.Linq; | |
| using UnityEditor; | |
| using UnityEngine; | |
| using Object = UnityEngine.Object; | |
| public class MaterialGradientDrawer : MaterialPropertyDrawer { | |
| private int resolution; |
Water/Ocean:
Tessellation:
| // NOTE: ScriptableRenderPass template created for Unity 2020.1 and URP 8 | |
| // SOURCES: some used references to investigate what kind of different setups people use, lots of variety out there! | |
| // https://gist.github.com/Refsa/54da34a9e2fc8e45472286572216ad17 | |
| // https://gist.github.com/wonkee-kim/1792cd4fced96f98ae4a09ec500a3177 | |
| // https://zhuanlan.zhihu.com/p/232450616 (in chinese, but provides some code for custom render pass) | |
| // https://samdriver.xyz/articles/scriptableRender.htm (2019.3) | |
| // https://gist.github.com/Elringus/69f0da9c71306f1ea0f575cc7568b31a (LWRP) | |
| // https://github.com/Unity-Technologies/UniversalRenderingExamples/tree/release/2020.1 (2020.1 branch for SRP 8.2.0) |