Terrain normals don't scale with diffuse, and texture is backwards

[Einlander]

Get a texture with text so you can read, and add a normal map. Scale it up then run the game. the texture is mirrored and the normal map is not at the same scale but larger.

 

Image:

[Einlander]

Now this is getting frustrating. 4 months later this is still around. I started trying to make my winter games entry and discovered that it's still messed up.

 

Anyway, I did some more experiments, other than the texture being backwards, The large normals are from the mipmap when you are far away. Both the diffuse and normal are still showing. If you use a high contrast texture like I use, you can see that some of the lines have 2 colors on them.

[shadmar]

in clipmap.shader you can change this to 0.0 to avoid texture scale repeats.

#define TERRAIN_LOW_FREQUENCY_BLEND 8.0

[Josh]

Are we just talking about the texture fade scale feature in the shader? This really improves the appearance of terrain from a distance.

[Einlander]

But at the default height of the fps controller, I should not see the texture fade. What if I was painting snow, as I will be. It will draw a second ~*8 scale texture on top which may cause unintended visuals. What if it introduces an additional displacement?

 

Shadmar, I'll try that when I get home.

[Josh]

Well, most textures aren't a grid where the user will notice, and the larger texture just adds some subtle variation. Try commenting it out and see if there is still a problem.

[Einlander]

setting #define TERRAIN_LOW_FREQUENCY_BLEND to 1.0 seems to fix it, setting it to 0.0 mad it have a red tint to it.

 

How would I go about reversing the texture on the y axis?

[shadmar]

Just flip it in a paint editor.

Or track down all texcoord usages in the terrain shaders and mulitply it by vec2(1,-1)