How to simulate the "Result" component?

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FFCreator wrote: But if the filtertype of filter 1 is "Surface" the "Result" component

This answer will not probably help you but want to put it here if it may help in some way, because I wanted also to find a way to simulate or "copy" the result component in some way when using the surface result component so I made this thread here below

Add new component emulating the "surface type" of the result component

The straight up answer to this we can't simulate the result given the complexity of the output. There's a ton of things going on in that node alone from HDRI lighting, AO (if enabled), etc. For now its safe to say that the best method in the end is to stack filters and render something out one at a time. That isn't a happy answer but that's the realistic route.

I think there can be a way to fake it but it's pretty difficult to get the looks down given how many things the result node does.

I can try to piece together something that FAKES the whole output though and maybe that's another avenue we can look at since the thread is about simulating the result node! Note: No promises here, it's already difficult enough handling tons of work. I hope somebody can pick that up or find some old thread that does what I was describing.

Info (2)
5 Filter Forge Help : Result component (Surface filter)
6 Filter Forge Help : Lighting Tab
7 Filter Forge Help : Anti-Aliasing
8 Filter Forge Help : Miscellaneous – Filter Forge's Sample Based Architecture
9 Explanation of Lighting, Phong and Vector manipulation:
The Rendering Pipeline
10 Wikipedia Phong shading:
Wikipedia Phong Shading
11 Basic Illumination Model in C:
Basic Illumination Model in C
12 HDRI images explained (used by FF for calculating light from real world scenes):
What is HDRI?

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In the lighting tab, you can add point source lights. I made a filter a while ago that simulates this.

Thanks for that, it looks this is a good starting point to simulate a point light.

I'm still learning how we can pair the (ligting / shading) theory and the FF implementation of that.

Info (3)
13 Mathematics of Lighting (and light types):
Mathematics of Ligting


Theory

Global Illumination = Ambient Light + Diffuse Light + Specular Light + Emissive Light



Ambient Lighting is constant lighting. It is constant in all directions and it colors all pixels of an object the same. It is fast to calculate but leaves objects looking flat and unrealistic.

Diffuse Lighting depends on both the light direction and the object surface normal. It varies across the surface of an object as a result of the changing light direction and the changing surface numeral vector. It takes longer to calculate diffuse lighting because it changes for each object vertex, however the benefit of using it is that it shades objects and gives them three-dimensional (3D) depth.

Specular Lighting identifies the bright specular highlights that occur when light hits an object surface and reflects back toward the camera. It is more intense than diffuse light and falls off more rapidly across the object surface. It takes longer to calculate specular lighting than diffuse lighting, however the benefit of using it is that it adds significant detail to a surface.

Emissive Lighting is light that is emitted by an object; for example, a glow.

Realistic lighting can be accomplished by applying each of these types of lighting to a 3D scene. To achieve a more realistic lighting effect, you add more lights; however, the scene takes longer to render.

For non-metals, the color of specular reflection is generally the same as the color of the illumination (at least within the visible spectrum), but for metals this is not necessarily true.


FF implementation

1. Height input is a virtual "Z" axis and used for calculating light and shadow.
2. Use of the Phong reflection model for calculating light and shadows (when pixels have different heights on the (virtual) "Z" axis).
3. To actually see shadows the Height (map) input must be connected with a map output that delivers different heights (black and white pixels), in the Light TAB the "Surface Height" must be > 0 and "Shadowing" in the Ambience settings (outer ring of the sphere) must be set different than "None".


Result component inputs (Surface type):
a. Surface Color
b. Height (virtual Z axis)
c. Reflectivity
d. Reflection Blur
e. Metallic

Other parameters:
(See Ligting TAB and filterfiles)
f. Surface Height

"Environment parameters"
g. Source = scene / HDRI image (Environment preset) that is used for lighting
h. Brightness
i. Saturation
j. Rotation
k. RotationAxis

"Ambience parameters"
l. AmbientLight = ambient light color
m. Shadowing (non, ambient occlusion or ambient + reflective occlusion)
n. Occlusion settings - RayDirections
o. Occlusion settings - TraceDistance
p. Occlusion settings - RayJittering
q. Occlusion settings - RayBounce
r. Occlusion settings - AvoidStreaks
s. Occlusion settings - DirectSamples
t. Occlusion settings - ROQuality
u. ArtisticSettings - BlackPoint
v. ArtisticSettings - MidTones
w. ArtisticSettings - WhitePoint

"Parameters for every added light per light"
x. Color
y. Latitude
z. Longitude
aa. AngularWidthIndex
ab. AffectDiffuseSpecular("Influence" in GUI)
ac. Backlight?