46 lines
1.4 KiB
GLSL
46 lines
1.4 KiB
GLSL
#include "model_vs.glsl"
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// lights
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#include "light.glsl"
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void main() {
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vec3 objPos = get_object_pos();
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v_normal_ws = normalize(vec3(att_instanced_matrix * vec4(v_normal, 0.))); // normal to world/model space
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v_normal = normalize(v_normal);
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v_position = att_position;
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v_texcoord = att_texcoord;
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v_texcoord2 = att_texcoord2;
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v_color = att_color;
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mat4 modelView = view * att_instanced_matrix;
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mat4 l_model = att_instanced_matrix;
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v_position_ws = (l_model * vec4( objPos, 1.0 )).xyz;
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setup_billboards(modelView, l_model);
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v_position_ws = (l_model * vec4( objPos, 1.0 )).xyz;
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v_tangent = normalize(mat3(att_instanced_matrix) * att_tangent.xyz);
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#if 0
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// compute tangent T and bitangent B
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vec3 Q1 = dFdx(att_position);
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vec3 Q2 = dFdy(att_position);
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vec2 st1 = dFdx(att_texcoord);
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vec2 st2 = dFdy(att_texcoord);
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vec3 T = normalize(Q1*st2.t - Q2*st1.t);
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vec3 B = normalize(-Q1*st2.s + Q2*st1.s);
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vec3 binormal = B;
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#else
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vec3 binormal = cross(att_normal, att_tangent.xyz) * att_tangent.w;
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#endif
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v_binormal = normalize(mat3(att_instanced_matrix) * binormal);
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vec4 finalPos = modelView * vec4( objPos, 1.0 );
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vec3 to_camera = normalize( -finalPos.xyz );
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v_to_camera = mat3( inv_view ) * to_camera;
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v_vertcolor = lighting();
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gl_Position = P * finalPos;
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do_shadow();
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} |