Questions tagged [hdr]
The hdr tag has no summary.
27 questions
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Possible to render true HDR from Unity URP on supporting display?
Can the Unity URP actually output an HDR signal to a supporting monitor?
I don't mean HDR values with tone mapping applied to map the values to an SDR signal, but actual HDR values displayed on the ...
2
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1
answer
980
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How to save Unity HDR renderTexture into a .exr file?
[Purpose]:
I need to save the Unity camera view into a .exr file.
[Error]:
Remapping between formats 74 -> 73 is not supported
[What I've tried]:
I tried the ...
1
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0
answers
44
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ACES tonemapping confusion
In different sources I see ACES tonemapping, but I see one of two possible sets of formulas:
https://www.shadertoy.com/view/XsGfWV this one
https://www.shadertoy.com/view/tdffDl or this
I compared ...
1
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1
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839
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Unity 2019.3 HDRI SkyBox
I am trying to create an HDRI SkyBox out of 6 textures but after I create the cubemap with Assets → Legacy → Cubemap and drag it in the HDRI Sky I get an all white environment. Is this a problem with ...
1
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1
answer
742
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Performing image based lighting in an open world game
I finally have a PBR implementation in an engine that I'm writing for a game I'm developing but I'm stuck on how to use IBL in real situations. Most IBL tutorials use it just to show a single mesh or ...
1
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0
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112
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Excluding some scene elements from bloom effect
I've enabled HDR and bloom effects in my SceneKit app, but I don't want some of the elements in my scene to bloom.
For example, the lighter spots on the skybox are currently glowing.
Is there some ...
0
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0
answers
58
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How to do Colored Lights in CIE XYZ/LUV-like Space?
I've a 2d background, some sprites, blitted onto it. And over all that in the final pass I draw colored lights, to make projectiles look cooler. Basically I apply a classic lightmap, which is colored ...
0
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1
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532
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How can I produce 3D environments for VR from HDRI images?
I have a question regarding to the HDRI maps as many some of you have a bit of experience in this field especially for Oculus Rift platform!
I've been trying to achieve a 3D landscape from this HDRI ...
1
vote
1
answer
419
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HDR alpha blend
How do I blend two colors using SrcAlpha and OneMinusSrcAlpha when I have HDR range (rgb and a values can be > 1)?
The typical formula for non-HDR is (src * srcAlpha) + (dst * (1.0 - srcAlpha)) but ...
3
votes
0
answers
2k
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HDR bloom techniques using post processing in Unity3D
I've seen many posts on how to accomplish HDR bloom effects in Unity3D using its (now legacy) Bloom component as part of the standard assets package.
I'm trying to replicate it using the new post ...
0
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2
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895
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Why is my Direct3D 9 floating point texture clamping values 0–1?
I'm using Direct3D 9 to draw some primitives into a texture. The format used at texture creation is D3DFMT_A16B16G16R16F, and the primitives are drawn using additive blending. The additive blending ...
2
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1
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1k
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Opentk hdr rendering with framebuffer white screen problem
I am trying to do hdr rendering with two shader programs: one simply draws a hdr texture on a fullscreen quad and the other one does tonemapping.
I am trying either linear tonemapping
...
10
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1
answer
3k
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Tone mapping and eye adaptation - pale colors and darker image
I'm trying to implement tone mapping along with eye adaptation and HDR. Actually I implemented this already but I'm not satisfied with result and I think that I made something wrong.
My final image (...
3
votes
2
answers
1k
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Rectangular area light illuminance - colour banding
I'm currently working on an implementation of rectangular area lights but I am having some issues with the illuminance calculation, which gives me serious colour banding across the entire lit area. I'...
0
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1
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1k
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Plot HDR tonemap curves
I am using a tonemapper in our project and a friend of mine asked if I could provide him with a plot of the tonemapper used (different functions are implemented). I tried in MATLAB to copy the tone-...
8
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1
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505
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Specular banding with high specular power
We're having some issues with our ray tracing in DirectX, especially with some serious banding issues with specular. With high specular power (above 8) banding starts. I'm wondering if this is an HDR/...
3
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2
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5k
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Fast fullscreen quad rendering in Direct3D 11?
For the last few weeks, I've been trying to port a DX9 implementation of HDR rendering (tone mapping, bloom, stars, etc.) over to DX11. I believe I've got all features working but I'm not getting good ...
3
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1
answer
637
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Understanding and editing HDR light environments in Photoshop
I'm working with an in-development system that uses .hdr environments (equirectangular projection) to provide image-based lighting (IBL) to a 3D rendering. I'm ...
0
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1
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96
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Problem with .hdr/.pic format
So, everything was clear from the specification point of view, but when I moved to reading through some of the original implementations and reimplementations, I ran into this:
...
4
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1
answer
13k
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How to set up bloom in Unity
Last time I used image effects in Unity it was back when 3.0 was released and for bloom you used the object's alpha to indicate whether it should glow or not. Now in 4.2 I couldn't grasp how to apply ...
4
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1
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6k
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Uncharted 2 tone mapping and an eye adaptation
I found an example of uncharted 2 tone mapping on this site. Here is the code:
...
26
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1
answer
16k
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Does HDR rendering have any benefits if bloom won't be applied?
At the moment I use an image based light in my game for environment lighting. I sample a sky cubemap to get diffuse and specular lighting. At the moment I use a HDR rendering pipeline - the skybox ...
2
votes
1
answer
9k
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How to create HDR and bloom in Unity3D?
Unity3D's reference describes the HDR Bloom as:
Using HDR allows for much more control in post processing. LDR bloom
has an unfortunate side effect of blurring many areas of a scene even
if ...
0
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1
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7k
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Reinhard tone mapping and color space [closed]
I found two ways of doing tone mapping (first, second):
...
2
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1
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2k
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HDR / Tone Mapping - choosing parameters
I implement HDR in my graphics engine (deferred rendering) based on this document: link I save a luminance in a texture (RGBA16F) this way:
...
33
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3
answers
2k
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How do you author HDR content?
How do you make it easy for your artists to author content for an HDR renderer? What kinds of tools should you provide, and what workflows need to change, in going from LDR to HDR?
Note that I'm not ...
17
votes
4
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11k
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how does HDR work?
I'm trying to understand what HDR is and how it works.
I understand the basic concepts and have an slight idea of how it is implemented with D3D/hlsl.
However it's still pretty foggy.
Say I'm ...