mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-12-04 21:31:11 -05:00
55 lines
1.9 KiB
Text
55 lines
1.9 KiB
Text
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#version 300 es
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#define gl_Vertex _glesVertex
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in highp vec4 _glesVertex;
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#define gl_Normal _glesNormal
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in mediump vec3 _glesNormal;
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#define gl_MultiTexCoord0 _glesMultiTexCoord0
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in highp vec4 _glesMultiTexCoord0;
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struct v2f {
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highp vec4 pos;
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lowp vec4 color;
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highp vec2 uv;
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};
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uniform mediump vec4 unity_LightColor[8];
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uniform highp vec4 unity_LightPosition[8];
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uniform mediump vec4 unity_LightAtten[8];
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uniform highp mat4 glstate_matrix_mvp;
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uniform highp mat4 glstate_matrix_modelview0;
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uniform highp mat4 glstate_matrix_invtrans_modelview0;
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uniform highp vec4 glstate_lightmodel_ambient;
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uniform mediump vec4 _Color;
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highp vec3 ShadeLights( in highp vec3 vertex, in highp vec3 normal ) {
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highp vec3 viewpos = (glstate_matrix_modelview0 * vec4( vertex, 1.0)).xyz;
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highp vec3 viewN = (mat3( glstate_matrix_invtrans_modelview0) * normal);
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highp vec3 lightColor = glstate_lightmodel_ambient.xyz;
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highp int i = 0;
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for ( ; (i < 4); (i++))
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{
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highp vec3 toLight = (unity_LightPosition[i].xyz - (viewpos.xyz * unity_LightPosition[i].w));
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highp float lengthSq = dot( toLight, toLight);
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highp float atten = (1.0 / (1.0 + (lengthSq * unity_LightAtten[i].z)));
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highp float diff = max( 0.0, dot( viewN, normalize(toLight)));
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lightColor += (unity_LightColor[i].xyz * (diff * atten));
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}
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return (lightColor * vec3( _Color));
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}
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v2f vert( in highp vec3 v, in highp vec3 n, in highp vec2 uv ) {
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v2f o;
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o.pos = (glstate_matrix_mvp * vec4(v, 1.0));
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o.color = vec4( (ShadeLights(v, n) * 2.0), 1.0);
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o.uv = uv;
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return o;
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}
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out lowp vec4 xlv_COLOR0;
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out highp vec2 xlv_TEXCOORD0;
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void main() {
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v2f xl_retval;
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xl_retval = vert( vec3(gl_Vertex), vec3(gl_Normal), vec2(gl_MultiTexCoord0));
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gl_Position = vec4(xl_retval.pos);
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xlv_COLOR0 = vec4(xl_retval.color);
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xlv_TEXCOORD0 = vec2(xl_retval.uv);
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}
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