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Added fog to shader

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This commit is contained in:
Richard Davey 2020-09-21 00:16:43 +01:00
parent 8366d90f96
commit 1d2a8bc58f
2 changed files with 24 additions and 2 deletions
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14
src/renderer/webgl/shaders/Mesh-frag.js
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@ -8,6 +8,10 @@ module.exports = [
'uniform vec3 uLightDiffuse;',
'uniform vec3 uLightSpecular;',
'',
'uniform vec3 uFogColor;',
'uniform float uFogNear;',
'uniform float uFogFar;',
'',
'uniform vec3 uMaterialAmbient;',
'uniform vec3 uMaterialDiffuse;',
'uniform vec3 uMaterialSpecular;',
@ -39,7 +43,15 @@ module.exports = [
'',
' vec3 result = (ambient + diffuse + specular) * color.rgb;',
'',
' gl_FragColor = vec4(result, color.a);',
' float depth = gl_FragCoord.z / gl_FragCoord.w;',
'',
' float fogFactor = smoothstep(uFogNear, uFogFar, depth);',
'',
' // gl_FragColor = vec4(result, color.a);',
'',
' gl_FragColor.rgb = mix(result.rgb, uFogColor, fogFactor);',
'',
' gl_FragColor.a = color.a;',
'}',
''
].join('\n');

12
src/renderer/webgl/shaders/src/Mesh.frag
View file

@ -7,6 +7,10 @@ uniform vec3 uLightAmbient;
uniform vec3 uLightDiffuse;
uniform vec3 uLightSpecular;
uniform vec3 uFogColor;
uniform float uFogNear;
uniform float uFogFar;
uniform vec3 uMaterialAmbient;
uniform vec3 uMaterialDiffuse;
uniform vec3 uMaterialSpecular;
@ -38,5 +42,11 @@ void main (void)
vec3 result = (ambient + diffuse + specular) * color.rgb;
gl_FragColor = vec4(result, color.a);
float depth = gl_FragCoord.z / gl_FragCoord.w;
float fogFactor = smoothstep(uFogNear, uFogFar, depth);
gl_FragColor.rgb = mix(result.rgb, uFogColor, fogFactor);
gl_FragColor.a = color.a;
}