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Shadows stage 2 WIP

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Ayumiwii
2016-02-09 14:08:57 +01:00
parent 6542d1b444
commit cb7f06573f
9 changed files with 128 additions and 29 deletions
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resources/Shaders/ForwardPlus.frag.glsl
+61 -2
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@@ -13,6 +13,7 @@ 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 = 4) uniform sampler2D DepthMap;
#define TILE_SIZE 16
@@ -56,6 +57,7 @@ in VertexData{
vec2 TextureCoordinate;
vec4 ExplosionColor;
float ExplosionPercentageElapsed;
vec4 PositionLightSpace;
}Input;
out vec4 sceneColor;
@@ -112,6 +114,45 @@ vec4 CalcNormalMappedValue(vec3 normal, vec3 tangent, vec3 bitangent, vec2 textu
return vec4(TBN * normalize(NormalMap), 0.0);
}
//float CalcShadowValue(vec4 positionLightSpace, vec4 normal, vec4 lightDir, sampler2D depthTexture)
//{
// // perform perspective divide
// //vec3 projCoords = positionLightSpace.xyz / positionLightSpace.w;
// // Transform to [0,1] range
// //projCoords = projCoords * 0.5 + 0.5;
// // Get closest depth value from light's perspective (using [0,1] range fragPosLight as coords)
// float closestDepth = texture(depthTexture, positionLightSpace.xy).r;
// // Get depth of current fragment from light's perspective
// float currentDepth = positionLightSpace.z;
// // Check whether current frag pos is in shadow
// float shadow = currentDepth > closestDepth ? 1.0 : 0.0;
//
// return shadow;
//
//}
float CalcShadowValue(vec4 positionLightSpace, vec4 normal, vec4 lightDir, sampler2D depthTexture)
{
//float bias = max(0.05 * (1.0 - dot(normal, -lightDir)), 0.005);
// perform perspective divide
vec3 projCoords = positionLightSpace.xyz / positionLightSpace.w;
// Transform to [0,1] range
projCoords = projCoords * 0.5 + 0.5;
// Get closest depth value from light's perspective (using [0,1] range fragPosLight as coords)
//float lightDepth = texture(depthTexture, positionLightSpace.xy).r;
float closestDepth = texture(depthTexture, projCoords.xy).r;
// Get depth of current fragment from light's perspective
//float currentDepth = positionLightSpace.z;
float currentDepth = projCoords.z;
// Check whether current frag pos is in shadow
float shadow = currentDepth /*- bias*/ > closestDepth ? 1.0 : 0.0;
// float shadow = currentDepth > closestDepth ? 1.0 : 0.0;
return shadow;
}
void main()
{
vec4 diffuseTexel = texture2D(DiffuseTexture, Input.TextureCoordinate);
@@ -134,24 +175,42 @@ void main()
int start = int(LightGrids.Data[currentTile].Start);
int amount = int(LightGrids.Data[currentTile].Amount);
float shadowFactor = 1.0;
for(int i = start; i < start + amount; i++) {
int l = int(LightIndex[i]);
LightSource light = LightSources.List[l];
LightResult light_result;
//These if statements should be removed.
if(light.Type == 1) { // point
light_result = CalcPointLightSource(V * light.Position, light.Radius, light.Color, light.Intensity, viewVec, position, normal, light.Falloff);
} else if (light.Type == 2) { //Directional
light_result = CalcDirectionalLightSource(V * light.Direction, light.Color, light.Intensity, viewVec, normal);
shadowFactor = CalcShadowValue(Input.PositionLightSpace, normal, light.Direction, DepthMap);
}
totalLighting.Diffuse += light_result.Diffuse;
totalLighting.Specular += light_result.Specular;
totalLighting.Specular += light_result.Specular;
}
totalLighting.Diffuse += (1.0 - shadowFactor);
totalLighting.Specular += (1.0 - shadowFactor);
//LightResult getInformation;
vec4 color_result = mix((Color * diffuseTexel * DiffuseColor), Input.ExplosionColor, Input.ExplosionPercentageElapsed);
color_result = color_result * (totalLighting.Diffuse + (totalLighting.Specular * specularTexel));
//color_result = (totalLighting.Diffuse + (1.0 - shadowFactor) * (getInformation.Diffuse + (getInformation.Specular * specularTexel))) * color_result;
//vec4 color_result = (DiffuseColor + Input.ExplosionColor) * (totalLighting.Diffuse + (totalLighting.Specular * specularTexel)) * diffuseTexel * Color;