109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
const char * vs =
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#ifdef EMSCRIPTEN
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"#version 300 es\n"
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"precision highp float;"
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#else
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"#version 330 core\n"
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#endif
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"layout (location = 0) in float aPos_x;"
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"layout (location = 1) in float aPos_y;"
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"layout (location = 2) in float aPos_z;"
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"layout (location = 3) in float aPos_w;"
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"layout (location = 4) in float aNormal_x;"
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"layout (location = 5) in float aNormal_y;"
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"layout (location = 6) in float aNormal_z;"
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"layout (location = 7) in float aNormal_w;"
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"uniform uint idx;"
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"uniform uint i;"
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"uniform float angle;"
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"uniform mat4 fix;"
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"uniform mat4 rot;"
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"uniform mat4 mdl;"
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"flat out uint index;"
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"out vec3 Normal;"
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"out vec3 FragPos;"
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"mat2 rotate2d( float angle )"
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"{"
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"return mat2( cos(angle), sin(angle), -sin(angle), cos(angle) );"
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"}"
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"void main()"
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"{"
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" index=idx;"
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" vec3 aNormal = vec3(aNormal_x,aNormal_y,aNormal_z);"
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" vec3 aPos = vec3(aPos_x,aPos_y,aPos_z);"
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" aNormal[i] = (vec2(aNormal[i], aNormal_w) * rotate2d(angle))[0];"
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" aPos[i] = (vec2(aPos[i], aPos_w) * rotate2d(angle))[0];"
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" Normal = mat3(transpose(inverse(rot*mdl))) * aNormal;"
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" gl_Position = fix * rot * mdl * vec4( aPos, 1.0 );\n"
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" FragPos = vec3( rot * mdl * vec4(aPos, 1.0));"
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"}";
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const char * fs_plain =
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#ifdef EMSCRIPTEN
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"#version 300 es\n"
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"precision highp float;"
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"precision highp sampler2DArray;"
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#else
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"#version 330 core\n"
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#endif
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"uniform sampler2DArray palette;"
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"flat in uint index;"
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"out vec4 FragColor;"
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"in vec3 Normal;"
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"in vec3 FragPos;"
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"void main()"
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"{"
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" vec4 color = texture( palette, vec3(0,0,index)).rgba;"
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" FragColor = vec4(pow(vec3(color),vec3(1.0/2.2)),color.a);"
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"}";
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const char * fs =
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#ifdef EMSCRIPTEN
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"#version 300 es\n"
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"precision highp float;"
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"precision highp sampler2DArray;"
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#else
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"#version 330 core\n"
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#endif
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"uniform sampler2DArray palette;"
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"flat in uint index;"
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"in vec3 Normal;"
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"in vec3 FragPos;"
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"out vec4 FragColor;"
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"void main()"
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"{"
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" vec4 color = texture(palette, vec3(0, 0, index));\n"
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" vec3 viewPos = vec3(0, 0, -15);\n"
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" vec3 viewDir = normalize(viewPos - FragPos);\n"
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" vec3 lightPos = viewPos;\n"
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" vec3 lightDir = normalize(lightPos - FragPos);\n"
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" vec3 halfwayDir = normalize(lightDir + viewDir);\n"
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" float specular = pow(abs(dot(normalize(Normal), halfwayDir)), 32.0);\n"
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" float diffuse = abs(dot(normalize(Normal), lightDir));\n"
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" vec3 result = pow((0.5 + 0.5*diffuse + 1.5*specular) * color.rgb, vec3(1.0/2.2));\n"
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" FragColor = vec4(result, color.a);\n"
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"}";
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