diff options
| -rw-r--r-- | client/shaders/nodes_shader/opengl_fragment.glsl | 9 | ||||
| -rw-r--r-- | client/shaders/object_shader/opengl_fragment.glsl | 6 | ||||
| -rw-r--r-- | client/shaders/shadow_shaders/pass1_trans_fragment.glsl | 7 | ||||
| -rw-r--r-- | client/shaders/shadow_shaders/pass1_trans_vertex.glsl | 7 | ||||
| -rw-r--r-- | src/client/clientmap.cpp | 5 |
5 files changed, 29 insertions, 5 deletions
diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl index 87ef9af7d..e21890710 100644 --- a/client/shaders/nodes_shader/opengl_fragment.glsl +++ b/client/shaders/nodes_shader/opengl_fragment.glsl @@ -489,7 +489,11 @@ void main(void) if (distance_rate > 1e-7) { #ifdef COLORED_SHADOWS - vec4 visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + 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 @@ -507,7 +511,8 @@ void main(void) shadow_int = 1.0 - (shadow_int * f_adj_shadow_strength); - col.rgb = mix(shadow_color,col.rgb,shadow_int)*shadow_int; + // apply shadow (+color) as a factor to the material color + col.rgb = col.rgb * (1.0 - (1.0 - shadow_color) * (1.0 - pow(shadow_int, 2.0))); // col.r = 0.5 * clamp(getPenumbraRadius(ShadowMapSampler, posLightSpace.xy, posLightSpace.z, 1.0) / SOFTSHADOWRADIUS, 0.0, 1.0) + 0.5 * col.r; #endif diff --git a/client/shaders/object_shader/opengl_fragment.glsl b/client/shaders/object_shader/opengl_fragment.glsl index 9a0b90f15..3390e7227 100644 --- a/client/shaders/object_shader/opengl_fragment.glsl +++ b/client/shaders/object_shader/opengl_fragment.glsl @@ -351,7 +351,11 @@ void main(void) vec3 posLightSpace = getLightSpacePosition(); #ifdef COLORED_SHADOWS - vec4 visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + 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 diff --git a/client/shaders/shadow_shaders/pass1_trans_fragment.glsl b/client/shaders/shadow_shaders/pass1_trans_fragment.glsl index 9f9e5be8c..032cd9379 100644 --- a/client/shaders/shadow_shaders/pass1_trans_fragment.glsl +++ b/client/shaders/shadow_shaders/pass1_trans_fragment.glsl @@ -2,6 +2,8 @@ uniform sampler2D ColorMapSampler; varying vec4 tPos; #ifdef COLORED_SHADOWS +varying vec3 varColor; + // c_precision of 128 fits within 7 base-10 digits const float c_precision = 128.0; const float c_precisionp1 = c_precision + 1.0; @@ -30,7 +32,10 @@ void main() //col.rgb = col.a == 1.0 ? vec3(1.0) : col.rgb; #ifdef COLORED_SHADOWS - float packedColor = packColor(mix(col.rgb, black, col.a)); + col.rgb *= varColor.rgb; + // alpha 0.0 results in all-white, 0.5 means full color, 1.0 means all black + // resulting color is used as a factor in the final shader + float packedColor = packColor(mix(mix(vec3(1.0), col.rgb, 2.0 * clamp(col.a, 0.0, 0.5)), black, 2.0 * clamp(col.a - 0.5, 0.0, 0.5))); gl_FragColor = vec4(depth, packedColor, 0.0,1.0); #else gl_FragColor = vec4(depth, 0.0, 0.0, 1.0); diff --git a/client/shaders/shadow_shaders/pass1_trans_vertex.glsl b/client/shaders/shadow_shaders/pass1_trans_vertex.glsl index ca59f2796..0a9efe450 100644 --- a/client/shaders/shadow_shaders/pass1_trans_vertex.glsl +++ b/client/shaders/shadow_shaders/pass1_trans_vertex.glsl @@ -1,5 +1,8 @@ uniform mat4 LightMVP; // world matrix varying vec4 tPos; +#ifdef COLORED_SHADOWS +varying vec3 varColor; +#endif const float bias0 = 0.9; const float zPersFactor = 0.5; @@ -23,4 +26,8 @@ void main() gl_Position = vec4(tPos.xyz, 1.0); gl_TexCoord[0].st = gl_MultiTexCoord0.st; + +#ifdef COLORED_SHADOWS + varColor = gl_Color.rgb; +#endif } diff --git a/src/client/clientmap.cpp b/src/client/clientmap.cpp index 7cde085c8..1a024e464 100644 --- a/src/client/clientmap.cpp +++ b/src/client/clientmap.cpp @@ -461,7 +461,10 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass) layer.Texture = shadow->get_texture(); layer.TextureWrapU = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE; layer.TextureWrapV = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE; - layer.TrilinearFilter = true; + // Do not enable filter on shadow texture to avoid visual artifacts + // with colored shadows. + // Filtering is done in shader code anyway + layer.TrilinearFilter = false; } driver->setMaterial(material); ++material_swaps; |