#ATTILA TOTAL WAR MAP FULL#
#ATTILA TOTAL WAR MAP SERIES#

Total War: Attila also had a custom ambient occlusion implementation. Ambient lights were just 6 fixed colours and there are specular probes and SSR for indirect reflections. It gives perfect sphere (not elongated) specular reflections and can work with a sun disk size.

This was introduced in Total War: Rome II. We have a statistically based BRDF model which is physically correct and the distribution of micro-facets is based on a Gaussian distribution. Most of the lighting contribution comes from the main directional light. This is for historical reasons and we are in the process of switching. You can also notice that we use diffuse/specular instead of colour/metalness. The normal is stored in a two channel compressed format. The reason is because we need to blend all those properties while rendering terrain and decals and we need the alpha channel to specify the alpha amount. The most obvious thing you probably noticed is that we donвЂ™t store anything in the alpha channels of the first two textures. We have 3 textures for the GBuffer with the following layout: Then we run one screen-space pass per tile, which has its own blend map and projects the layers down to the geometry (you can think of it as a huge projected decal). To accommodate for these needs, we first render all the terrain geometry in a depth-only pass (including both the height field and the custom meshes). We have no limits on how many tiles/layers can be combined. Each layer has diffuse, normal and specular/gloss textures, so this can be 24Г—3 = 72 textures per pixel. Each tile has its own 8 texture layers, but at certain points we need to blend all three together, which means blending 24 layers per pixel potentially. To hide tile edges, we also need to blend between the tiles itself.ДЇor example, you can imagine a T junction where forest, desert and marshlands meet. As a result, each battle is made up of several tiles. You can think of each tile as a single map, but when you start a battle on a portion of the campaign, we construct the battlefield from all the tiles (which can be of any shape and size) around. To cope with this, artists edit and create tiles. It would be near impossible for artists to handcraft it all. The world map is massive in the Total War games. We also have lots of custom meshes (cliff pieces for example), which needs to blend to the terrain textures (which are already a combination of several layers).Д®ach battlefield consists of multiple tiles. We also have to support instant teleport (when the player clicks somewhere on the mini-map), which poses additional difficulty with streaming techniques. We have to break tiling patterns and must have smooth transitions between terrain types. We focus on mid-far distance, rather than focusing on near. Due to being an RTS game our terrain needs are somewhat different to first-person titles. Terrain is the one of the most important part in our game.

#ATTILA TOTAL WAR MAP FULL#

In the image below, you can see a screenshot from Total War: Attila showing the engine in full flow. We donвЂ™t render terrain into the shadow map, but вЂ“ as you can imagine for an RTS вЂ“ we render tons of small meshes, compared to FPS/TPS game, which tend to render fewer, but more detailed meshes. We use cascaded shadow maps with 2-4 cascades depending on the graphics settings. We started every frame with rendering shadows from the main directional light. In the next post or two I will walk you through the major changes and optimizations we made during Total War: Warhammer. Let me start with a quick overview of the state of the rendering pipeline after we finished Total War: Attila. Porting to DirectXВ® 12 opened up new opportunities and helped us to better understand the graphics hardware.

Working closely with AMD was a great help achieving our goals.

#ATTILA TOTAL WAR MAP SERIES#

WeвЂ™re extremely lucky to have Tamas Rabel, Lead Graphics Programmer on the Total War series providing us with a detailed look at the Total War renderer as well as digging deep into some of the optimizations that the team at Creative Assembly did for the brilliant, Total War: Warhammer.Дuring the development of Total War: Warhammer the primary focus of the Graphics Team was performance and stability. For the next fewВ weeks weвЂ™ll be having a regular feature on GPUOpen that weвЂ™ve affectionately dubbed вЂњWarhammer WednesdaysвЂќ.

Attila total war map