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Questions tagged [rendering]

The process of generating an image or series of images from a model by means of computer programming.

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The performance gains of tiled rendering on mobile

I'm making an OpenGL es app on android and I'm trying to improve the performance of it. I found this technique called tiled rendering (not the same thing as tiled deffered rendering*) wich divides the ...
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Determine if a triangle is on the screen

I am working on a small software renderer, and I want to discard invisible triangles from the drawing process. Let's say I have a screen with resolution of 200x100 pixels. The triangle is defined with ...
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What's the difference between Unity3D rendering pipeline and OpenGL rendering pipeline?

I wanted to write small software renderer that will follow almost the same flow as OpenGL does, but got stuck with understanding of the rendering pipeline. After reading tons of info across the ...
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Why do I still get values from _CameraDepthTexture even if I didn't set depthTextureMode?

I forgot to write this C# code to enable depth from my camera: ...
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rendering the position of a mesh in a shader as a color, but the color does not match the actual position

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Camera not rendering to rendertexture inside class

I have an issue where I created a class to generate a lightprobe atlas texture for me, but the camera don't seem to render properly into teh rendertexture, I have no idea why... someone can help me ...
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Draw and render a sequence of 3D models with OpenGL

I have an application that will generate a 3D model for a dynamic 3D object (3D mesh + texture formatted as .obj file) at a time, so I end up getting a stream of 3D models (or 4D models?), and I want ...
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Trying to write to GL_R16UI buffer, but everything is zero

I've written some render data to an offscreen RGBA texture, and it works. However, I don't need a full 32 bits to hold this data, so I wanted to convert to a 16-bit buffer where I can just write ...
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Inward looking panorama

I have a 3d model with very complex geometry. I want to bake these details into a texture map. I want to transfer the rendered image of the model to a low poly version. It is like a panorama, but the ...
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Unity UI Line Rendering (UILineRenderer) pixelated

I'm using UILineRenderer to draw curve of the map. The one thing I'm finding is that the drawing is pixelated despite adding more data points. setting the quality in game view to 4K UHD, and ...
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45 views

How can transparency be implemented in a Minecraft-like game without sorting the vertices?

I'm working on a minecraft clone with OpenGL and I've been trying to implement the rendering of textures with transparency for several days now with out succes. What techniques can be used to achieve ...
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Does OIT Rendering work for semi-transparent textures with opaque parts?

I'm Work ing on a minecraft-like game (in OpenGL with c++) and I'm tryping to Implement Transparency for Blocks like windows, ice, leafs and water. I've tried to implement Weighted Blended Order-...
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What is the correct way to combine transforms together?

I have a type called transform in my game engine: ...
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How to get rid of gradient shading on the bottom of grass

I've been using Unity's terrain system and a Vegetation Spawner asset (https://assetstore.unity.com/packages/tools/terrain/vegetation-spawner-177192) to make some terrain for my game. While using the ...
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Cellular Automata rendering

I am developing a Java game in my free time. The world/map consists of different kinds of cells: wood, snow, water, etc. The player can walk around and manipulate the terrain/cells with tools. ...
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How to get rid of these seams on the lightmap? ( Unity )

The wall is made of blocks of identical wall models with the same UVs. How to get rid of these seams on the lightmap? How I made this scene with this models: I made 3D model of the wall element in ...
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simple button color change

Hello i want to create a simple button that activates on a click but my code wont activate and I've tried an print plus a color change of the sprite but none of these worked, the button is a image ...
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1 answer
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Unity Editor Hangs for A Fraction of A Second About Once Per Second

I am having a problem with the Unity Editor. It hangs for a fraction of a second about once per second. I took a video recording of me walking through the default hdrp scene. https://youtu.be/...
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Why Area light looks like Circle light? ( Unity )

All my Area light with Rectangle shape but after baking I get this circle shape ligh. Why?
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Do I need to disable shadow casting and Recieve shadows settings if the object is baked in Lightmap?

I baked a lightmap with Subtractive mode. Do I need additionaly disable Casting shadow and Receive shadows settings to protect against unnecessary waste of resources&
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How to implement a generic modular render pipeline?

In my project (based on libGDX) I use an ECS system (Ashley). Each graphical entity has a SpriteComponent that is a TextureRegion. There is a rendering system that iterates over all SpriteComponents, ...
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Why are URP render settings limited in terms of rendering light sources? ( Unity )

The amount of simultaneous rendering of multiple lights is not just limited, it is severely limited. Do more than 8 light sources affect the performance so much?
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144 views

How to enable more than 8 light sources in URP?

My location in the scene is the Bunker, there are many light sources in the form of wall lamps. There are more than 8 of them. Therefore, you need to be able to render more than 8 lights in the scene. ...
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Unity can't render more when 3 light points. Why?

YouTube video with demonstration of problem. When I move the camera, Unity keeps rendering one light point and stops rendering another one. But as a result, only 3 can be rendered. Why is this ...
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1 answer
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Rendering Unreal Engine 4 sequence: character timeline animations don't show, and behave as if they are in play mode

I have a cinematic sequence with camera cuts set up that can be previewed properly. These scenes involve human skeletal character animations that I made frame by frame in the timeline. Everything ...
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Broken back face culling

I have an issue with back face culling in my engine on the monkey model from Blender exported as .obj format. However, with the box model from Blender exported the ...
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What are the benifits to Unity's SRP vs Built-in render pipeline

I understand that unity claims the SRP is "more customisable" because you can program it with c# scripts, but is there anything the SRP can do that Built-in cannot, is it possible to achieve ...
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How to connect lightmap textures to scene?

I am working through GIT. I created a level and a lightmap for it, but in subsequent commits, the lightmap textures seem to have lost touch with the scene. The scene was not particularly changed, the ...
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Rendering Objects with dynamic data in OpenGL

I am currently working on a OpenGL Renderer in C++. I have created a base Object class that looks a bit like this: ...
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How to make render texture grayscaled?

I have made a minimap, but I don't know how to make it less colorful and haven't find any solution for this.
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How to effectively manage multiple dynamic objects in OpenGL

Im at the point in the development of my game where I want to start rendering multiple objects on the screen and update them independently. There are two concepts I can think of to manage this. Each ...
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SFML: Object's shape not rendered on the window

I want to be able to render sf::CircleShape (representing pointwise charges) when pressing mouse buttons on the window. The problem is easy enough, however the ...
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1 answer
158 views

Why is the Unity pixel color read from RenderTexture bigger than 1?

The pixel color component read from the Unity renderTexture is bigger than 1.0 without HDR environment map. I'm writing a mini program to test the reflectance of Unity PBS. I use six pure white (1,1,1,...
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Where does this orange tint come from after baking LightMap?

My settings: Unity version - Unity 2021.1.12f1 Lightmap Lighting Mode - Bake indirect Render Path - URP All Objects in Scene are marked as static. If you move objects aside, then under them there is ...
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Changing Ambient Light settings in Environment window does not affect scene after baking LightMap

My settings: Unity version - Unity 2021.1.12f1 Lightmap Lighting Mode - Bake indirect Render Path - URP I want to change Ambient Light in Environment window while I have baked LightMap. Is it possible?...
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1 answer
19 views

How not to multiply real time and bake shadows? (Unity)

I have one Light Source ( Directional Light ) with Mixed Mode. Lighting Mode in Lighting Window I seted to Subtractive. What the problem looks like How I would like the shadows to blend. How to ...
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75 views

Painter's theorem inside and outside test [closed]

I have read from Hearn and Baker computer graphics book. I read the test#2 painter's theorem which image is given below. This image showing surface S is completely behind the surface S', by checking ...
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1 answer
134 views

Extensible 2D Rendering with ECS Architecture

I am currently creating a 2D game/game engine using an ECS architecture. Currently I have a renderer_2d system which is a function that takes all ...
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133 views

How do I calculate a matrix to render a mirror about a plane using GLM?

I've been trying to work out how to render a mirror for a while now, but a lot of resources I find either use very outdated tools I'm not familiar with, appear to be college slides referencing other ...
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Is there any debugging facility for DXR ray tracing shaders available?

Quick question: Is there currently any debugging facility for DXR ray tracing shaders available? Neither PIX, nor RenderDoc do currently support debugging of such shaders ...
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1 answer
115 views

GPU Instanced Transparent Mesh Not Rendering

I'm trying to render a bunch of clouds via gpu instancing. This works perfectly fine with the default HDRP Lit Shader, and I get the following result: However, as soon as I change the surface type ...
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Lights do not fully respect SortingLayers in Universal Render Pipeline

I just installed Universal Render Pipeline (10.5.1) into my Unity (2020.3.15f2) 2D project and believe I have everything configured correctly. I created a new RenderPipeline asset I deleted the ...
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Java/LWJGL 3 Optimization and Render error

(I asked the same question on StackOverflow but didn't got an answer. It's the first time I post here so idk if this is not allowed or anything, so if it is please tell me) I was following ThinMatrix'...
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Rendering between two DrawMeshInstanced() calls in Unity

I am working on a 2D shmup that requires rendering thousands of animated bullets and animated medals on screen at the same time. I use a standard pooling method to activate and deactivate these ...
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3D projection, Similar to SceneCapture2D

I would appreciate some help, I was wondering if it was possible in UE4 to do a "3D projection" of a scene, Similar to what SceneCapture2D does, but the viewer can see a 3D scene (with a ...
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why does my mesh render on top of UI?

I've got some UI elements and a 3D mesh imported from blender. I've tried stuff like sorting layers, so that I render my 3D mesh below a canvas UI element(side panel), for which I put my 3D mesh ...
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1 answer
246 views

How to re-render the scene only when something changes in Unity?

I am building a social/chat/dating app which I would like to build in Unity as I want some 3D graphics, geo-location functions, and possibly mini-games you can play together with others. From a ...
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Opengles glBindBufferBase has weird performance issue

I am now doing some optimization for rendering process. I notice that in my game some objects is totally static and never changed. In my old way, I will create a uniform buffer every frame, and put ...
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1 vote
1 answer
576 views

How to disable motion blur in unity HDRP

This is probably a really simple question, but I just started trying to use Unity's HDRP, and was wondering if there was a way to remove the intense motion blur when moving the mouse. Basically, is ...
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1 answer
143 views

How to perform 2D vector graphics operations in Unity

I am currently working on a game that is drawn completely by 2d vector graphics operations like e.g. drawRoundedRectangle drawPolygon fillRect withBlur How can I perform such vector graphics ...
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