Questions tagged [ambient-occlusion]
Ambient occlusion is a rendering technique concerned with the measurement of the amount of ambient light reaching surfaces.
15 questions
1
vote
1
answer
2k
views
Baked AO in Substance Painter shows dark lines along some convex edges
A default cube exported from Blender shows this issue(several vertical lines are dark) of baked AO in Substance Painter. I encountered this issue from texturing a model with a layer of dirt where I ...
0
votes
1
answer
169
views
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 ...
- 21
0
votes
1
answer
965
views
Correctly Implementing SSAO
I am trying to implement Normal-Oriented SSAO and i'm having an issue with the results. Portions of the screen are inverted/wrong, typically half way through the screen but not always, it seems tied ...
- 88
2
votes
1
answer
648
views
How can I make an OpenGl/GLSL varying vary throughout a quad instead of a triangle in OpenGl 3.3?
I am, like many others, currently working on a block-based game in C++ and OpenGl. Recently, I added ambient occlusion support. This ambient occlusion is created by modulating the brightness of a ...
- 239
1
vote
0
answers
221
views
How to import a texture to be used as occlusion map?
The same way normal maps need to be imported as "Normal map" in the import settings, how should I setup an Ambient Occlusion texture to correctly work?
I've been searching around in the manual and ...
- 113
0
votes
1
answer
3k
views
How do you write an unlit shader which supports Ambient Occlusion?
For performance reasons, a scene might use Unlit shaders only.
Is there an Unlit shader which supports Ambient Occlusion?
What is the best way to achieve this look, for moving and static objects, ...
- 309
0
votes
1
answer
2k
views
Unity Ambient Occlusion not working with Orthographic camera
It seems like the Ambient Occlusion setting from the Unity Post Processing stack (obtained from the asset store) only works with a Perspective camera, yet I haven't ...
- 101
0
votes
1
answer
465
views
Drawcall Batching with Ambient Occlusion
I'm creating a low poly 4X game that will likely have upwards of 200 unique hex tile models once everything is said and done. The colour palette consists of 16 different colours. I understand that if ...
- 121
0
votes
1
answer
2k
views
Unity - Ambient Occlusion artefacts
When I create two cubes from Unity > Component menu. And turn on AO the bottom cube is not shaded properly. I mean the upper cube is alright but the bottom cube does not have any shadow present. What ...
1
vote
1
answer
479
views
How should I apply Ambient Occlusion from greyscale AO maps?
I've seen many tutorials on SSAO, but none for simple ambient occlusion maps.
I can see myself working things out alone, as AO maps are simple greyscale maps that indicate where there should be more ...
- 461
3
votes
0
answers
302
views
Unity's 'Ambient' Occlusion occludes everything. How to do it better?
I'm experimenting with custom AO solutions for Unity. While looking at the source for their built-in SSAO effect, I noticed the shader is doing this:
...
- 131
0
votes
1
answer
1k
views
Any reason not to combine an AO Map and Cavity Map into one texture?
If an Ambient Occlusion Map is for mapping shadows based on closeness of neighboring geometry, and a Cavity Map is for mapping smaller shadows based on angle or distance, then is there any reason not ...
- 213
4
votes
1
answer
1k
views
SSAO issue - surfaces darken based on camera angle
I have a strange issue in my engine where my SSAO effect will extremely darken or lighten based on my camera angle:
In that example, I'm just outputting the ssao texture to the screen. The texture is ...
- 1,043
1
vote
0
answers
251
views
Why would an ambient occlusion (AO) shader's performance be dependent on light direction?
One of my favourite games recently implemented ambient occlusion as a graphics feature, which appears to perform very well in most circumstances - except during sunrise and sunset. As someone who is ...
- 233
1
vote
0
answers
711
views
How can I do ambient occlusion for simple meshes with few vertices?
I want to do ambient occlusion for some simple buildings.
Since simple buildings have very few vertexes, how can I get good results? Is it possible with a per-vertex AO implementation?
- 11