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Fix FOV wall shadowing not working properly due to broken fov-lighting (#2114)

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20kdc
2021-10-09 16:27:36 +01:00
committed by GitHub
parent 22e0fbc6c1
commit c25ab2fcb1
3 changed files with 22 additions and 31 deletions
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22
Resources/Shaders/Internal/fov-lighting.swsl
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@@ -2,29 +2,15 @@ preset raw;
#include "/Shaders/Internal/shadow_cast_shared.swsl"
#include "/Shaders/Internal/fov_shared.swsl"
const highp float g_MinVariance = 0.0;
varying highp vec2 worldPosition;
// Center of the FOV, in world coordinates.
uniform highp vec2 center;
void vertex()
{
highp vec3 transformed = modelMatrix * vec3(VERTEX, 1.0);
worldPosition = transformed.xy;
transformed = projectionMatrix * viewMatrix * transformed;
VERTEX = transformed.xy;
}
void fragment()
{
highp vec2 diff = worldPosition - center;
highp float ourDist = length(worldSpaceDiff);
highp float ourDist = length(diff);
highp vec2 occlDist = occludeDepth(diff, TEXTURE, 0.25);
highp vec2 occlDist = occludeDepth(worldSpaceDiff, TEXTURE, 0.25);
highp float occlusion = ChebyshevUpperBound(occlDist, ourDist);

15
Resources/Shaders/Internal/fov.swsl
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@@ -2,21 +2,10 @@ preset raw;
#include "/Shaders/Internal/shadow_cast_shared.swsl"
#include "/Shaders/Internal/fov_shared.swsl"
const highp float g_MinVariance = 0.0;
// World-space position offset from centre to pixel.
varying highp vec2 worldSpaceDiff;
// Inverted transformation matrix from clip coordinates to difference coordinates.
uniform highp mat3 clipToDiff;
void vertex()
{
// Convert quad-space (0.0 to 1.0) to clip-space (-1.0 to 1.0)
VERTEX = (VERTEX.xy - 0.5) * 2.0;
worldSpaceDiff = (clipToDiff * vec3(VERTEX, 1.0)).xy;
}
void fragment()
{
highp float ourDist = length(worldSpaceDiff);

16
Resources/Shaders/Internal/fov_shared.swsl Normal file
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@@ -0,0 +1,16 @@
// Shared between fov-lighting.swsl and fov.swsl, which both use the Clyde quad,
// manually transformed into clip-space to cover the entire viewport
// World-space position offset from centre to pixel.
varying highp vec2 worldSpaceDiff;
// Inverted transformation matrix from clip coordinates to difference coordinates.
uniform highp mat3 clipToDiff;
void vertex()
{
// Convert quad-space (0.0 to 1.0) to clip-space (-1.0 to 1.0)
VERTEX = (VERTEX.xy - 0.5) * 2.0;
worldSpaceDiff = (clipToDiff * vec3(VERTEX, 1.0)).xy;
}