Differential D6918 Diff 22133 source/blender/draw/engines/eevee/shaders/shadow_accum_frag.glsl

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source/blender/draw/engines/eevee/shaders/shadow_accum_frag.glsl

Show All 13 Lines	if (laNumLight == 0) {
fragColor.r = 0.0;		fragColor.r = 0.0;
return;		return;
}		}

ivec2 texel = ivec2(gl_FragCoord.xy);		ivec2 texel = ivec2(gl_FragCoord.xy);
float depth = texelFetch(depthBuffer, texel, 0).r;		float depth = texelFetch(depthBuffer, texel, 0).r;
if (depth == 1.0f) {		if (depth == 1.0f) {
/* Early exit background does not receive shadows */		/* Early exit background does not receive shadows */
fragColor.r = 1.0;		fragColor.r = 0.0;
return;		return;
}		}

vec2 texel_size = 1.0 / vec2(textureSize(depthBuffer, 0)).xy;		vec2 texel_size = 1.0 / vec2(textureSize(depthBuffer, 0)).xy;
vec2 uvs = saturate(gl_FragCoord.xy * texel_size);		vec2 uvs = saturate(gl_FragCoord.xy * texel_size);
vec4 rand = texelfetch_noise_tex(texel);		vec4 rand = texelfetch_noise_tex(texel);

float accum_light = 0.0;		float accum_light = 0.0;
float tracing_depth = depth;		float tracing_depth = depth;
/* Constant bias (due to depth buffer precision) */		/* Constant bias (due to depth buffer precision) */
/* Magic numbers for 24bits of precision.		/* Magic numbers for 24bits of precision.
* From http://terathon.com/gdc07_lengyel.pdf (slide 26) */		* From http://terathon.com/gdc07_lengyel.pdf (slide 26) */
tracing_depth -= mix(2.4e-7, 4.8e-7, depth);		tracing_depth -= mix(2.4e-7, 4.8e-7, depth);
/* Convert to view Z. */		/* Convert to view Z. */
tracing_depth = get_view_z_from_depth(tracing_depth);		tracing_depth = get_view_z_from_depth(tracing_depth);

vec3 viewPosition = get_view_space_from_depth(uvs, depth);		vec3 viewPosition = get_view_space_from_depth(uvs, depth);
vec3 worldPosition = transform_point(ViewMatrixInverse, viewPosition);		vec3 worldPosition = transform_point(ViewMatrixInverse, viewPosition);

vec3 true_normal = normalize(cross(dFdx(viewPosition), dFdy(viewPosition)));		vec3 true_normal = normalize(cross(dFdx(viewPosition), dFdy(viewPosition)));
		vec3 N = normal_view_to_world(true_normal);

for (int i = 0; i < MAX_LIGHT && i < laNumLight; i++) {		for (int i = 0; i < MAX_LIGHT && i < laNumLight; i++) {
LightData ld = lights_data[i];		LightData ld = lights_data[i];

vec4 l_vector; /* Non-Normalized Light Vector with length in last component. */		vec4 l_vector; /* Non-Normalized Light Vector with length in last component. */
l_vector.xyz = ld.l_position - worldPosition;		l_vector.xyz = ld.l_position - worldPosition;
l_vector.w = length(l_vector.xyz);		l_vector.w = length(l_vector.xyz);

		float light_input = smoothstep(0.2, -0.2, -dot(N, normalize(l_vector.xyz)));
		fclemUnsubmitted Done Inline Actions does cycles actually have this fallof? if not just use a step function. fclem: does cycles actually have this fallof? if not just use a step function.
		jbakkerAuthorUnsubmitted Done Inline Actions Best result I got with `float light_input = smoothstep(1.5, -1.5, -dot(N, l_vector.xyz));` But it will leave artifacts near edges. jbakker: Best result I got with `float light_input = smoothstep(1.5, -1.5, -dot(N, l_vector.xyz));`…
		fclemUnsubmitted Done Inline Actions l_vector is not normalized. so i'm guessing the 1.5 factors are not correct. fclem: l_vector is not normalized. so i'm guessing the 1.5 factors are not correct.
float l_vis = light_shadowing(		float l_vis = light_shadowing(
ld, worldPosition, viewPosition, tracing_depth, true_normal, rand.x, true, 1.0);		ld, worldPosition, viewPosition, tracing_depth, true_normal, rand.x, true, light_input);

accum_light += l_vis;		accum_light += l_vis;
}		}

fragColor.r = accum_light / float(laNumLight);		fragColor.r = accum_light / float(laNumLight);
}		}
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