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Merge pull request #23248 from dlasalle/fog

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Add parameters for fog end depth and use alpha as density.
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Juan Linietsky 2018-11-14 10:24:55 -03:00 • committed by GitHub
commit 55f5f4757e
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14 changed files with 61 additions and 20 deletions
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9
drivers/gles3/shaders/scene.glsl
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@ -98,6 +98,8 @@ layout(std140) uniform SceneData { // ubo:0
bool fog_depth_enabled;
highp float fog_depth_begin;
highp float fog_depth_end;
mediump float fog_density;
highp float fog_depth_curve;
bool fog_transmit_enabled;
highp float fog_transmit_curve;
@ -675,6 +677,8 @@ layout(std140) uniform SceneData {
bool fog_depth_enabled;
highp float fog_depth_begin;
highp float fog_depth_end;
mediump float fog_density;
highp float fog_depth_curve;
bool fog_transmit_enabled;
highp float fog_transmit_curve;
@ -2026,10 +2030,11 @@ FRAGMENT_SHADER_CODE
//apply fog
if (fog_depth_enabled) {
float fog_far = fog_depth_end > 0 ? fog_depth_end : z_far;
float fog_z = smoothstep(fog_depth_begin, z_far, length(vertex));
float fog_z = smoothstep(fog_depth_begin, fog_far, length(vertex));
fog_amount = pow(fog_z, fog_depth_curve);
fog_amount = pow(fog_z, fog_depth_curve) * fog_density;
if (fog_transmit_enabled) {
vec3 total_light = emission + ambient_light + specular_light + diffuse_light;
float transmit = pow(fog_z, fog_transmit_curve);