As of today, Railcraft has been updated to 1.7.10. I was going to add an example config for the ores from railcraft, but the dark ores use an underlyingBlock of abyssal stone, which is not in the vanilla textures. I was thinking that instead of the way underlyingBlock is right now, maybe you could make it similar to baseBlockTexture. For example: "S:underlyingBlock=minecraft:stone" for stone or "S:underlyingBlock=railcraft:cube.stone.abyssal" for abyssal stone. It uses the mod's texture folder name, then a colon, and then the texture .png name. Just some food for thought.
As of today, Railcraft has been updated to 1.7.10. I was going to add an example config for the ores from railcraft, but the dark ores use an underlyingBlock of abyssal stone, which is not in the vanilla textures. I was thinking that instead of the way underlyingBlock is right now, maybe you could make it similar to baseBlockTexture. For example: "S:underlyingBlock=minecraft:stone" for stone or "S:underlyingBlock=railcraft:cube.stone.abyssal" for abyssal stone. It uses the mod's texture folder name, then a colon, and then the texture .png name. Just some food for thought.