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SSAO now working. Changed in DrawFinalePass so that th AOTexture is on texture position 0 and only get binded once.

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Changed so that the picking pass get drawn once in the beginning so that the AO shatde could calculate AO from the depthbuffer generated during pthe pickingpass.

In the ImGUI debugg window there is now sliders to change the behavior of the AO shader. Only the minimum ambient lightning is HardCoded in to the frowardPlus fragmentshaders with a define in the begining.
This commit is contained in:
Teejoon
2016-02-22 14:48:20 +01:00
parent 201480b17f
commit adceccf402
18 changed files with 192 additions and 170 deletions
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resources/Shaders/ForwardPlus.frag.glsl
+12 -7
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@@ -1,5 +1,7 @@
#version 430
#define MIN_AMBIENT_LIGHT 0.3
uniform mat4 M;
uniform mat4 V;
uniform mat4 P;
@@ -14,10 +16,11 @@ uniform vec2 DiffuseUVRepeat;
uniform vec2 NormalUVRepeat;
uniform vec2 SpecularUVRepeat;
uniform vec2 GlowUVRepeat;
layout (binding = 0) uniform sampler2D DiffuseTexture;
layout (binding = 1) uniform sampler2D NormalMapTexture;
layout (binding = 2) uniform sampler2D SpecularMapTexture;
layout (binding = 3) uniform sampler2D GlowMapTexture;
layout (binding = 0) uniform sampler2D AOTexture;
layout (binding = 1) uniform sampler2D DiffuseTexture;
layout (binding = 2) uniform sampler2D NormalMapTexture;
layout (binding = 3) uniform sampler2D SpecularMapTexture;
layout (binding = 4) uniform sampler2D GlowMapTexture;
#define TILE_SIZE 16
@@ -119,6 +122,8 @@ vec4 CalcNormalMappedValue(vec3 normal, vec3 tangent, vec3 bitangent, vec2 textu
void main()
{
float ao = texelFetch(AOTexture, ivec2(gl_FragCoord.xy), 0).r;
ao = (clamp(1.0 - (1.0 - ao), 0.0, 1.0) + MIN_AMBIENT_LIGHT) / (1.0 + MIN_AMBIENT_LIGHT);
vec4 diffuseTexel = texture2D(DiffuseTexture, Input.TextureCoordinate * DiffuseUVRepeat);
vec4 glowTexel = texture2D(GlowMapTexture, Input.TextureCoordinate * GlowUVRepeat);
vec4 specularTexel = texture2D(SpecularMapTexture, Input.TextureCoordinate * SpecularUVRepeat);
@@ -133,7 +138,7 @@ void main()
tilePos.y = int(gl_FragCoord.y/TILE_SIZE);
LightResult totalLighting;
totalLighting.Diffuse = vec4(AmbientColor.rgb, 1.0);
totalLighting.Diffuse = vec4(AmbientColor.rgb * ao, 1.0);
int currentTile = int(floor(gl_FragCoord.x/TILE_SIZE) + (floor(gl_FragCoord.y/TILE_SIZE) * int(ScreenDimensions.x/TILE_SIZE)));
int start = int(LightGrids.Data[currentTile].Start);
@@ -151,8 +156,8 @@ void main()
} else if (light.Type == 2) { //Directional
light_result = CalcDirectionalLightSource(V * light.Direction, light.Color, light.Intensity, viewVec, normal);
}
totalLighting.Diffuse += light_result.Diffuse;
totalLighting.Specular += light_result.Specular;
totalLighting.Diffuse += vec4(light_result.Diffuse.rgb * ao, light_result.Diffuse.a);
totalLighting.Specular += vec4(light_result.Specular.rgb * ao, light_result.Specular.a);
}
vec4 color_result = mix((Color * diffuseTexel * DiffuseColor), Input.ExplosionColor, Input.ExplosionPercentageElapsed);