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path: root/source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl
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Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl')
-rw-r--r--source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl213
1 files changed, 106 insertions, 107 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl b/source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl
index 3ac214bfde2..d4f75965907 100644
--- a/source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/shadow_copy_frag.glsl
@@ -1,15 +1,16 @@
/* Copy the depth only shadowmap into another texture while converting
* to linear depth (or other storage method) and doing a 3x3 box filter. */
-layout(std140) uniform shadow_render_block {
- vec4 lampPosition;
- float cubeTexelSize;
- float storedTexelSize;
- float nearClip;
- float farClip;
- int shadowSampleCount;
- float shadowInvSampleCount;
- float exponent;
+layout(std140) uniform shadow_render_block
+{
+ vec4 lampPosition;
+ float cubeTexelSize;
+ float storedTexelSize;
+ float nearClip;
+ float farClip;
+ int shadowSampleCount;
+ float shadowInvSampleCount;
+ float exponent;
};
#ifdef CSM
@@ -23,7 +24,8 @@ uniform float shadowFilterSize;
out vec4 FragColor;
-#define linear_depth(z) ((nearClip * farClip) / (clamp(z, 0.0, 0.999999) * (nearClip - farClip) + farClip))
+#define linear_depth(z) \
+ ((nearClip * farClip) / (clamp(z, 0.0, 0.999999) * (nearClip - farClip) + farClip))
/* add bias so background filtering does not bleed into shadow map */
#define BACKGROUND_BIAS 0.05
@@ -31,38 +33,40 @@ out vec4 FragColor;
#ifdef CSM
vec4 get_world_distance(vec4 depths, vec3 cos[4])
{
- depths += step(vec4(0.9999), depths) * BACKGROUND_BIAS;
- return clamp(depths * abs(farClip - nearClip), 0.0, 1e10); /* Same factor as in shadow_cascade(). */
+ depths += step(vec4(0.9999), depths) * BACKGROUND_BIAS;
+ return clamp(
+ depths * abs(farClip - nearClip), 0.0, 1e10); /* Same factor as in shadow_cascade(). */
}
float get_world_distance(float depth, vec3 cos)
{
- depth += step(0.9999, depth) * BACKGROUND_BIAS;
- return clamp(depth * abs(farClip - nearClip), 0.0, 1e10); /* Same factor as in shadow_cascade(). */
+ depth += step(0.9999, depth) * BACKGROUND_BIAS;
+ return clamp(
+ depth * abs(farClip - nearClip), 0.0, 1e10); /* Same factor as in shadow_cascade(). */
}
#else /* CUBEMAP */
vec4 get_world_distance(vec4 depths, vec3 cos[4])
{
- depths = linear_depth(depths);
- cos[0] = normalize(abs(cos[0]));
- cos[1] = normalize(abs(cos[1]));
- cos[2] = normalize(abs(cos[2]));
- cos[3] = normalize(abs(cos[3]));
- vec4 cos_vec;
- cos_vec.x = max(cos[0].x, max(cos[0].y, cos[0].z));
- cos_vec.y = max(cos[1].x, max(cos[1].y, cos[1].z));
- cos_vec.z = max(cos[2].x, max(cos[2].y, cos[2].z));
- cos_vec.w = max(cos[3].x, max(cos[3].y, cos[3].z));
- return depths / cos_vec;
+ depths = linear_depth(depths);
+ cos[0] = normalize(abs(cos[0]));
+ cos[1] = normalize(abs(cos[1]));
+ cos[2] = normalize(abs(cos[2]));
+ cos[3] = normalize(abs(cos[3]));
+ vec4 cos_vec;
+ cos_vec.x = max(cos[0].x, max(cos[0].y, cos[0].z));
+ cos_vec.y = max(cos[1].x, max(cos[1].y, cos[1].z));
+ cos_vec.z = max(cos[2].x, max(cos[2].y, cos[2].z));
+ cos_vec.w = max(cos[3].x, max(cos[3].y, cos[3].z));
+ return depths / cos_vec;
}
float get_world_distance(float depth, vec3 cos)
{
- depth = linear_depth(depth);
- cos = normalize(abs(cos));
- float cos_vec = max(cos.x, max(cos.y, cos.z));
- return depth / cos_vec;
+ depth = linear_depth(depth);
+ cos = normalize(abs(cos));
+ float cos_vec = max(cos.x, max(cos.y, cos.z));
+ return depth / cos_vec;
}
#endif
@@ -75,122 +79,117 @@ float get_world_distance(float depth, vec3 cos)
#ifdef ESM
void prefilter(vec4 depths, float ref, inout float accum)
{
- accum += dot(ln_space_prefilter_step(ref, depths), vec4(1.0));
+ accum += dot(ln_space_prefilter_step(ref, depths), vec4(1.0));
}
#else /* VSM */
void prefilter(vec4 depths, float ref, inout vec2 accum)
{
- vec4 depths_sqr = depths * depths;
- accum += vec2(dot(vec4(1.0), depths), dot(vec4(1.0), depths_sqr)) * SAMPLE_WEIGHT;
+ vec4 depths_sqr = depths * depths;
+ accum += vec2(dot(vec4(1.0), depths), dot(vec4(1.0), depths_sqr)) * SAMPLE_WEIGHT;
}
#endif
#ifdef CSM
vec3 get_texco(vec2 uvs, vec2 ofs)
{
- return vec3(uvs + ofs, float(cascadeId));
+ return vec3(uvs + ofs, float(cascadeId));
}
#else /* CUBEMAP */
-const vec3 minorAxisX[6] = vec3[6](
- vec3(0.0f, 0.0f, -1.0f),
- vec3(0.0f, 0.0f, 1.0f),
- vec3(1.0f, 0.0f, 0.0f),
- vec3(1.0f, 0.0f, 0.0f),
- vec3(1.0f, 0.0f, 0.0f),
- vec3(-1.0f, 0.0f, 0.0f)
-);
-
-const vec3 minorAxisY[6] = vec3[6](
- vec3(0.0f, -1.0f, 0.0f),
- vec3(0.0f, -1.0f, 0.0f),
- vec3(0.0f, 0.0f, 1.0f),
- vec3(0.0f, 0.0f, -1.0f),
- vec3(0.0f, -1.0f, 0.0f),
- vec3(0.0f, -1.0f, 0.0f)
-);
-
-const vec3 majorAxis[6] = vec3[6](
- vec3(1.0f, 0.0f, 0.0f),
- vec3(-1.0f, 0.0f, 0.0f),
- vec3(0.0f, 1.0f, 0.0f),
- vec3(0.0f, -1.0f, 0.0f),
- vec3(0.0f, 0.0f, 1.0f),
- vec3(0.0f, 0.0f, -1.0f)
-);
+const vec3 minorAxisX[6] = vec3[6](vec3(0.0f, 0.0f, -1.0f),
+ vec3(0.0f, 0.0f, 1.0f),
+ vec3(1.0f, 0.0f, 0.0f),
+ vec3(1.0f, 0.0f, 0.0f),
+ vec3(1.0f, 0.0f, 0.0f),
+ vec3(-1.0f, 0.0f, 0.0f));
+
+const vec3 minorAxisY[6] = vec3[6](vec3(0.0f, -1.0f, 0.0f),
+ vec3(0.0f, -1.0f, 0.0f),
+ vec3(0.0f, 0.0f, 1.0f),
+ vec3(0.0f, 0.0f, -1.0f),
+ vec3(0.0f, -1.0f, 0.0f),
+ vec3(0.0f, -1.0f, 0.0f));
+
+const vec3 majorAxis[6] = vec3[6](vec3(1.0f, 0.0f, 0.0f),
+ vec3(-1.0f, 0.0f, 0.0f),
+ vec3(0.0f, 1.0f, 0.0f),
+ vec3(0.0f, -1.0f, 0.0f),
+ vec3(0.0f, 0.0f, 1.0f),
+ vec3(0.0f, 0.0f, -1.0f));
vec3 get_texco(vec2 uvs, vec2 ofs)
{
- uvs += ofs;
- return majorAxis[faceId] + uvs.x * minorAxisX[faceId] + uvs.y * minorAxisY[faceId];
+ uvs += ofs;
+ return majorAxis[faceId] + uvs.x * minorAxisX[faceId] + uvs.y * minorAxisY[faceId];
}
#endif
-void main() {
- /* Copy the depth only shadowmap into another texture while converting
- * to linear depth and do a 3x3 box blur. */
+void main()
+{
+ /* Copy the depth only shadowmap into another texture while converting
+ * to linear depth and do a 3x3 box blur. */
#ifdef CSM
- vec2 uvs = gl_FragCoord.xy * storedTexelSize;
+ vec2 uvs = gl_FragCoord.xy * storedTexelSize;
#else /* CUBEMAP */
- vec2 uvs = gl_FragCoord.xy * cubeTexelSize * 2.0 - 1.0;
+ vec2 uvs = gl_FragCoord.xy * cubeTexelSize * 2.0 - 1.0;
#endif
- /* Center texel */
- vec3 co = get_texco(uvs, vec2(0.0));
- float depth = texture(shadowTexture, co).r;
- depth = get_world_distance(depth, co);
+ /* Center texel */
+ vec3 co = get_texco(uvs, vec2(0.0));
+ float depth = texture(shadowTexture, co).r;
+ depth = get_world_distance(depth, co);
- if (shadowFilterSize == 0.0) {
+ if (shadowFilterSize == 0.0) {
#ifdef ESM
- FragColor = vec4(depth);
+ FragColor = vec4(depth);
#else /* VSM */
- FragColor = vec2(depth, depth * depth).xyxy;
+ FragColor = vec2(depth, depth * depth).xyxy;
#endif
- return;
- }
+ return;
+ }
#ifdef ESM
- float accum = 1.0;
- float ref = depth;
+ float accum = 1.0;
+ float ref = depth;
#else /* VSM */
- float ref = 0.0; /* UNUSED */
- vec2 accum = vec2(depth, depth * depth) * SAMPLE_WEIGHT;
+ float ref = 0.0; /* UNUSED */
+ vec2 accum = vec2(depth, depth * depth) * SAMPLE_WEIGHT;
#endif
#ifdef CSM
- vec3 ofs = vec3(1.0, 0.0, -1.0) * shadowFilterSize;
+ vec3 ofs = vec3(1.0, 0.0, -1.0) * shadowFilterSize;
#else /* CUBEMAP */
- vec3 ofs = vec3(1.0, 0.0, -1.0) * shadowFilterSize;
+ vec3 ofs = vec3(1.0, 0.0, -1.0) * shadowFilterSize;
#endif
- vec3 cos[4];
- cos[0] = get_texco(uvs, ofs.zz);
- cos[1] = get_texco(uvs, ofs.yz);
- cos[2] = get_texco(uvs, ofs.xz);
- cos[3] = get_texco(uvs, ofs.zy);
-
- vec4 depths;
- depths.x = texture(shadowTexture, cos[0]).r;
- depths.y = texture(shadowTexture, cos[1]).r;
- depths.z = texture(shadowTexture, cos[2]).r;
- depths.w = texture(shadowTexture, cos[3]).r;
- depths = get_world_distance(depths, cos);
- prefilter(depths, ref, accum);
-
- cos[0] = get_texco(uvs, ofs.xy);
- cos[1] = get_texco(uvs, ofs.zx);
- cos[2] = get_texco(uvs, ofs.yx);
- cos[3] = get_texco(uvs, ofs.xx);
- depths.x = texture(shadowTexture, cos[0]).r;
- depths.y = texture(shadowTexture, cos[1]).r;
- depths.z = texture(shadowTexture, cos[2]).r;
- depths.w = texture(shadowTexture, cos[3]).r;
- depths = get_world_distance(depths, cos);
- prefilter(depths, ref, accum);
+ vec3 cos[4];
+ cos[0] = get_texco(uvs, ofs.zz);
+ cos[1] = get_texco(uvs, ofs.yz);
+ cos[2] = get_texco(uvs, ofs.xz);
+ cos[3] = get_texco(uvs, ofs.zy);
+
+ vec4 depths;
+ depths.x = texture(shadowTexture, cos[0]).r;
+ depths.y = texture(shadowTexture, cos[1]).r;
+ depths.z = texture(shadowTexture, cos[2]).r;
+ depths.w = texture(shadowTexture, cos[3]).r;
+ depths = get_world_distance(depths, cos);
+ prefilter(depths, ref, accum);
+
+ cos[0] = get_texco(uvs, ofs.xy);
+ cos[1] = get_texco(uvs, ofs.zx);
+ cos[2] = get_texco(uvs, ofs.yx);
+ cos[3] = get_texco(uvs, ofs.xx);
+ depths.x = texture(shadowTexture, cos[0]).r;
+ depths.y = texture(shadowTexture, cos[1]).r;
+ depths.z = texture(shadowTexture, cos[2]).r;
+ depths.w = texture(shadowTexture, cos[3]).r;
+ depths = get_world_distance(depths, cos);
+ prefilter(depths, ref, accum);
#ifdef ESM
- accum = ln_space_prefilter_finalize(ref, accum);
+ accum = ln_space_prefilter_finalize(ref, accum);
#endif
- FragColor = vec2(accum).xyxy;
+ FragColor = vec2(accum).xyxy;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-09 12:47:57 +0300