diff options
Diffstat (limited to 'client/shaders/nodes_shader')
| -rw-r--r-- | client/shaders/nodes_shader/opengl_fragment.glsl | 85 | ||||
| -rw-r--r-- | client/shaders/nodes_shader/opengl_vertex.glsl | 57 |
2 files changed, 73 insertions, 69 deletions
diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl index e5f5c703a..adc8adccb 100644 --- a/client/shaders/nodes_shader/opengl_fragment.glsl +++ b/client/shaders/nodes_shader/opengl_fragment.glsl @@ -16,6 +16,7 @@ uniform float animationTimer; uniform float f_textureresolution; uniform mat4 m_ShadowViewProj; uniform float f_shadowfar; + uniform float f_shadow_strength; varying float normalOffsetScale; varying float adj_shadow_strength; varying float cosLight; @@ -483,55 +484,57 @@ void main(void) vec4 col = vec4(color.rgb * varColor.rgb, 1.0); #ifdef ENABLE_DYNAMIC_SHADOWS - float shadow_int = 0.0; - vec3 shadow_color = vec3(0.0, 0.0, 0.0); - vec3 posLightSpace = getLightSpacePosition(); + if (f_shadow_strength > 0.0) { + float shadow_int = 0.0; + vec3 shadow_color = vec3(0.0, 0.0, 0.0); + vec3 posLightSpace = getLightSpacePosition(); - float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); - float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); + float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); + float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); - if (distance_rate > 1e-7) { - + if (distance_rate > 1e-7) { + #ifdef COLORED_SHADOWS - vec4 visibility; - if (cosLight > 0.0) - visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - visibility = vec4(1.0, 0.0, 0.0, 0.0); - shadow_int = visibility.r; - shadow_color = visibility.gba; + vec4 visibility; + if (cosLight > 0.0) + visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + visibility = vec4(1.0, 0.0, 0.0, 0.0); + shadow_int = visibility.r; + shadow_color = visibility.gba; #else - if (cosLight > 0.0) - shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - shadow_int = 1.0; + if (cosLight > 0.0) + shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + shadow_int = 1.0; #endif - shadow_int *= distance_rate; - shadow_int = clamp(shadow_int, 0.0, 1.0); + shadow_int *= distance_rate; + shadow_int = clamp(shadow_int, 0.0, 1.0); - } + } - // turns out that nightRatio falls off much faster than - // actual brightness of artificial light in relation to natual light. - // Power ratio was measured on torches in MTG (brightness = 14). - float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); - - // Apply self-shadowing when light falls at a narrow angle to the surface - // Cosine of the cut-off angle. - const float self_shadow_cutoff_cosine = 0.035; - if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { - shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - } + // turns out that nightRatio falls off much faster than + // actual brightness of artificial light in relation to natual light. + // Power ratio was measured on torches in MTG (brightness = 14). + float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); + + // Apply self-shadowing when light falls at a narrow angle to the surface + // Cosine of the cut-off angle. + const float self_shadow_cutoff_cosine = 0.035; + if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { + shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + } - shadow_int *= f_adj_shadow_strength; - - // calculate fragment color from components: - col.rgb = - adjusted_night_ratio * col.rgb + // artificial light - (1.0 - adjusted_night_ratio) * ( // natural light - col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color - dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + shadow_int *= f_adj_shadow_strength; + + // calculate fragment color from components: + col.rgb = + adjusted_night_ratio * col.rgb + // artificial light + (1.0 - adjusted_night_ratio) * ( // natural light + col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color + dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + } #endif #if ENABLE_TONE_MAPPING diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl index 95cd138a8..5e77ac719 100644 --- a/client/shaders/nodes_shader/opengl_vertex.glsl +++ b/client/shaders/nodes_shader/opengl_vertex.glsl @@ -195,34 +195,35 @@ void main(void) varColor = clamp(color, 0.0, 1.0); #ifdef ENABLE_DYNAMIC_SHADOWS - vec3 nNormal = normalize(vNormal); - cosLight = dot(nNormal, -v_LightDirection); - - // Calculate normal offset scale based on the texel size adjusted for - // curvature of the SM texture. This code must be change together with - // getPerspectiveFactor or any light-space transformation. - vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; - // Distance from the vertex to the player - float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; - // perspective factor estimation according to the - float perspectiveFactor = distanceToPlayer * bias0 + bias1; - float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / - (f_textureresolution * bias1 - perspectiveFactor * bias0); - float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); - normalOffsetScale = texelSize * slopeScale; - - if (f_timeofday < 0.2) { - adj_shadow_strength = f_shadow_strength * 0.5 * - (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); - } else if (f_timeofday >= 0.8) { - adj_shadow_strength = f_shadow_strength * 0.5 * - mtsmoothstep(0.8, 0.83, f_timeofday); - } else { - adj_shadow_strength = f_shadow_strength * - mtsmoothstep(0.20, 0.25, f_timeofday) * - (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + if (f_shadow_strength > 0.0) { + vec3 nNormal = normalize(vNormal); + cosLight = dot(nNormal, -v_LightDirection); + + // Calculate normal offset scale based on the texel size adjusted for + // curvature of the SM texture. This code must be change together with + // getPerspectiveFactor or any light-space transformation. + vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; + // Distance from the vertex to the player + float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; + // perspective factor estimation according to the + float perspectiveFactor = distanceToPlayer * bias0 + bias1; + float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / + (f_textureresolution * bias1 - perspectiveFactor * bias0); + float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); + normalOffsetScale = texelSize * slopeScale; + + if (f_timeofday < 0.2) { + adj_shadow_strength = f_shadow_strength * 0.5 * + (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); + } else if (f_timeofday >= 0.8) { + adj_shadow_strength = f_shadow_strength * 0.5 * + mtsmoothstep(0.8, 0.83, f_timeofday); + } else { + adj_shadow_strength = f_shadow_strength * + mtsmoothstep(0.20, 0.25, f_timeofday) * + (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + } + f_normal_length = length(vNormal); } - f_normal_length = length(vNormal); #endif - } |