That ConstantBiasScale is a really good tip! I have a correction in the description about the range of sin. But for some reason that correction isn't popping up on the video. When using those values as a mask it usually wont matter if its -1 or 0 vs 1 or 100 it will produce the same output. But It is much more proper to use the ConstantBiasScale as you mentioned or at least throw a Saturate or Clamp node on the sin curve to clamp it between 0-1. Thanks for suggesting this.

That would depend on whether the blender python syntaxes has changed at all. For something as simple as this (just grabbing the selection, and copying basic metadata) I highly doubt there will be any issues. But if there are any issues, it's nothing chatgpt won't fix in a few seconds 😅

@@Fingle Thanks for your prompt reply I appreciate you taking the time to get back to me

@@jamaalsineke2405 baaah, Im just passing through and saw it was a recent comment. Good luck with your Unreal and coding journey!

Would have to benchmark it to be sure, but I assume if your utilizing Nanite or LODs the Geo might be a better choice. Mainly because you would have more direct access to the surface for collisions/shading.etc. And GPUs can handle geometry pretty easily now days. The approach of raymarching would maybe work better for gooey liquids or things that might need to be there bubbling around doing things but not necessarily interacting with the world. Nebulas, Clouds, those things are often done with Raymarching.

@renderbucket ok so if I'm doing Geospatial stuff and instancing the mesh then this would be a good choice

Light Functions are generally used to adjust the Scale/Falloff of a Light or Intensity/Animation. If you have a Texture in a Light Function it should behave the same as our HLSL Code that Generates the Smiley Face. Try adjusting the Light Function Scale Control under the Light Function Material. This will allow you to Size Down or Size Up the Texture/Smiley Image. You will notice the Smiley then will show up but it won't tile the same as a Texture in X,Y. This is because to ensure proper tiling we have to make sure the UVs wrap/tile seamlessly. We can modify the code like this to do that. --- int gridArray[5][5] = {{0,0,0,0,0}, {0,1,0,1,0}, {0,0,0,0,0}, {0,1,1,1,0}, {0,0,0,0,0},}; float2 uvGrid = floor(uv*5); int x = int(uvGrid.x) % 5; int y = int(uvGrid.y) % 5; x = (x < 0) ? x + 5 : x; y = (y < 0) ? y + 5 : y; return gridArray[y][x]; --- Try that and set your Light Function Scale to something like 150,150,150. 😃

@@renderbucket hey thanks for your reply. it worked. i guess i just have to learn more about what exactly which option, input and variable does.

I agree, there is so much variety in the tutorials and they are detailed / explained really well.

Not really, if you can do the same thing with Nodes. Probably better to do it with Nodes in most cases. Some of the nodes in Unreal are really just using HLSL if you go into them. But there are many things you can do with HLSL that aren't possible in Nodes in Unreal. It also sometimes can be way easier to do things with code than tons of nodes. So its really more of compliment to working with nodes for the basic/intermediate side of things. And on the very advanced end of things you can go as far as creating compute shaders or fully custom materials. HLSL is also not just a Unreal thing it can be used in Unity or any other Game Engine running on DirectX. It is also very similar to GLSL, so learning one or the other you kind of learn both.

You might have to enable it through the ini file in the project folder. Sometimes Unreal doesn't let you change certain variables within the editor.

@@renderbucket Yes, this way it seems to work, I was just curious to know why it's not in the console 🙂 Anyway thanks again, your video is THE solution I've found to successfully enable HDR in my UE project 👍😁 What render settings are you choosing to render/export a movie sequence in HDR in Unreal ?

Just press H on the node