The name for a class of rendering technique where geometry and material properties are explicitly separated from the lighting computations. This is done by rendering the material properties of various objects into several buffers, and then using passes over those "g-buffers" to do lighting ...

learn more… | top users | synonyms

4
votes
1answer
53 views

What are the alternatives to OpenGL arrays for deferred rendering?

I'm trying to build a deferred rendering technique in an OpenGL engine, but I can't figure how I could get more than the limit of 32 lights. I use an array in my shader, feed light properties in this ...
3
votes
1answer
36 views

Tiled deferred shading without compute shader

I'm building a deferred renderer and since I want to support a large amount of lights in the scene I've had a look at tiled deferred shading. The problem is that I have to target OpenGL 3.3 hardware ...
1
vote
1answer
30 views

Deferred rendering - reconstruction of world position view dependent

I am moving my small renderer from forward to deferred, I have now noticed something a bit odd. I am for now using a simple way to reconstruct world position in the lighting pass: float3 GetWP(...
3
votes
0answers
29 views

Light bounding geometry for deferred rendering

What is the best bounding geometry to use in a deferred renderer for each one of the following light types? Sphere area light (obviously a sphere) Disk area light (obviously a cone) Rectangular area ...
3
votes
0answers
128 views

Shadow mapping - Can't get the right texture coordinates

I'm trying to implement shadow maps for Spotlight's, but alas I can't get them to work. I have verified that my fragment shader is getting the shadow map texture. I can sample from it in the ...
1
vote
0answers
161 views

OpenGL (lwjgl) Frame Buffer Object GL_COLOR_ATTACHMENT Not Being Written To

I am currently developing a deferred renderer for my game engine and I have to output multiple textures from my shader to my GBuffer. I have been struggling with getting multiple outputs from the ...
1
vote
0answers
141 views

Smooth seams and banding of overlapping lights in deferred rendering

I have finally managed to get on screen multiple lights with a deferred renderer, but the result is somehow disappointing. In particular I have severe banding problem Other than having clear ...
1
vote
0answers
235 views

Deferred Rendering: Orthographic directional light that has position

Basically I need to code a light for deferred rendering that is a cross between a spotlight and a directional (positionless) light. It's to be used for sunlight, but because my terrain has overhangs ...
1
vote
0answers
212 views

Batching Homogeneous Render Objects in XNA, 2D Component-Entity Engine?

I've been working on my component-entity engine for about 3 months now, and have managed to get nearly every constituent system working with little effort or compromise. My system has the following ...
0
votes
0answers
423 views

How to draw a screen aligned quad by command buffer in Unity deferred rendering

I want to draw a screen aligned quad by a command buffer, and add it at CameraEvent.BeforeLighting. I create a quad mesh in code, and I'm sure the mesh is right, because it works if the command ...
0
votes
0answers
111 views

Unity forward render path creating pixel lines between meshes

I have a bit of a problem where my meshes are either unsmooth because I'm using deferred rendering path or they are smooth using forward rendering path but it creates this weird pixel line between the ...
0
votes
0answers
36 views

How to upload lights when doing one pass per light

Suppose I have a reasonable amount of light sources that I upload at once in my forward rendering and accumulate them in shader. Now that I am willing to move to deferred, and so one pass per light, ...