mirror of https://github.com/nothings/stb.git
correct normals for upwards slope (and dummy lighting to test it)
Sean Barrett
parent
177498673e
commit
c10b3fefae
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@ -1,6 +1,9 @@
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// @TODO
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//
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// - compute full set of texture normals
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// - switch to #ifdef
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// - premultiplied alpha
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// - edge clamp
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// - gather vertex lighting from slopes correctly
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// - better support texture edge_clamp: explicitly mod texcoords by 1, use textureGrad to avoid
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// mipmap articats. Need to do compute texcoords in vertex shader, offset towards
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@ -373,6 +376,8 @@ enum
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STBVOX_FACE_south,
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STBVOX_FACE_up,
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STBVOX_FACE_down,
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STBVOX_FACE__count,
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};
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@ -540,7 +545,58 @@ struct stbvox_mesh_maker
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// color:8
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// Default uniform values
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// Faces:
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//
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// Faces use the bottom bits to choose the texgen
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// mode, and all the bits to choose the normal.
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// Thus the bottom 3 bits have to be:
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// e, n, w, s, u, d, u, d
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enum
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{
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STBVOX_EFACE_east,
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STBVOX_EFACE_north,
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STBVOX_EFACE_west,
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STBVOX_EFACE_south,
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STBVOX_EFACE_up,
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STBVOX_EFACE_down,
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STBVOX_EFACE_east_up,
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STBVOX_EFACE_east_down,
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STBVOX_EFACE_east_up_wall,
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STBVOX_EFACE_north_up_wall,
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STBVOX_EFACE_west_up_wall,
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STBVOX_EFACE_south_up_wall,
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STBVOX_EFACE_dummy_up_2,
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STBVOX_EFACE_dummy_down_2,
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STBVOX_EFACE_north_up,
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STBVOX_EFACE_north_down,
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STBVOX_EFACE_ne_up,
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STBVOX_EFACE_nw_up,
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STBVOX_EFACE_sw_up,
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STBVOX_EFACE_se_up,
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STBVOX_EFACE_dummy_up_3,
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STBVOX_EFACE_dummy_down_3,
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STBVOX_EFACE_west_up,
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STBVOX_EFACE_west_down,
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STBVOX_EFACE_ne_down,
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STBVOX_EFACE_nw_down,
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STBVOX_EFACE_sw_down,
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STBVOX_EFACE_se_down,
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STBVOX_EFACE_dummy_up_4,
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STBVOX_EFACE_dummy_down_4,
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STBVOX_EFACE_south_up,
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STBVOX_EFACE_south_down,
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// @TODO either we need more than 5 bits to encode the normal to fit these, or we can replace 'dummy' above with them but need to use full-size texgen table
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// so for now we just texture them with the wrong projection
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STBVOX_EFACE_east_down_wall = STBVOX_EFACE_east_down,
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STBVOX_EFACE_north_down_wall = STBVOX_EFACE_north_down,
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STBVOX_EFACE_west_down_wall = STBVOX_EFACE_west_down,
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STBVOX_EFACE_south_down_wall = STBVOX_EFACE_south_down,
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};
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static float stbvox_default_texgen[2][32][3] =
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{
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@ -550,6 +606,8 @@ static float stbvox_default_texgen[2][32][3] =
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{ 1, 0,0 }, { 0, 0, 1 }, { -1, 0,0 }, { 0, 0,-1 },
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{ 1, 0,0 }, { 0, 1, 0 }, { -1, 0,0 }, { 0,-1, 0 },
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{ -1, 0,0 }, { 0,-1, 0 }, { 1, 0,0 }, { 0, 1, 0 },
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{ 1, 0,0 }, { 0, 1, 0 }, { -1, 0,0 }, { 0,-1, 0 },
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{ -1, 0,0 }, { 0,-1, 0 }, { 1, 0,0 }, { 0, 1, 0 },
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},
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{ { 0, 0,-1 }, { 0, 1,0 }, { 0, 0, 1 }, { 0,-1,0 },
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{ 0, 0,-1 }, { -1, 0,0 }, { 0, 0, 1 }, { 1, 0,0 },
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@ -557,12 +615,51 @@ static float stbvox_default_texgen[2][32][3] =
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{ 0, 0,-1 }, { 1, 0,0 }, { 0, 0, 1 }, { -1, 0,0 },
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{ 0,-1, 0 }, { 1, 0,0 }, { 0, 1, 0 }, { -1, 0,0 },
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{ 0, 1, 0 }, { -1, 0,0 }, { 0,-1, 0 }, { 1, 0,0 },
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{ 0,-1, 0 }, { 1, 0,0 }, { 0, 1, 0 }, { -1, 0,0 },
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{ 0, 1, 0 }, { -1, 0,0 }, { 0,-1, 0 }, { 1, 0,0 },
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},
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};
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#define STBVOX_RSQRT2 0.7071067811865f
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#define STBVOX_RSQRT3 0.5773502691896f
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static float stbvox_default_normals[32][3] =
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{
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{ 1,0,0 }, { 0,1,0 }, { -1,0,0 }, { 0,-1,0 }, { 0,0,1 }, { 0,0,-1 }
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{ 1,0,0 }, // east
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{ 0,1,0 }, // north
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{ -1,0,0 }, // west
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{ 0,-1,0 }, // south
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{ 0,0,1 }, // up
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{ 0,0,-1 }, // down
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{ STBVOX_RSQRT2,0, STBVOX_RSQRT2 }, // east & up
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{ STBVOX_RSQRT2,0, -STBVOX_RSQRT2 }, // east & down
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{ STBVOX_RSQRT2,0, STBVOX_RSQRT2 }, // east & up
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{ 0, STBVOX_RSQRT2, STBVOX_RSQRT2 }, // north & up
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{ -STBVOX_RSQRT2,0, STBVOX_RSQRT2 }, // west & up
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{ 0,-STBVOX_RSQRT2, STBVOX_RSQRT2 }, // south & up
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{ 0,0,1 }, // up
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{ 0,0,-1 }, // down
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{ 0, STBVOX_RSQRT2, STBVOX_RSQRT2 }, // north & up
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{ 0, STBVOX_RSQRT2, -STBVOX_RSQRT2 }, // north & down
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{ STBVOX_RSQRT3, STBVOX_RSQRT3,STBVOX_RSQRT3 }, // NE & up
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{ -STBVOX_RSQRT3, STBVOX_RSQRT3,STBVOX_RSQRT3 }, // NW & up
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{ -STBVOX_RSQRT3,-STBVOX_RSQRT3,STBVOX_RSQRT3 }, // SW & up
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{ STBVOX_RSQRT3,-STBVOX_RSQRT3,STBVOX_RSQRT3 }, // SE & up
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{ 0,0,1 }, // up
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{ 0,0,-1 }, // down
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{ -STBVOX_RSQRT2,0, STBVOX_RSQRT2 }, // west & up
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{ -STBVOX_RSQRT2,0, -STBVOX_RSQRT2 }, // west & down
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{ STBVOX_RSQRT3, STBVOX_RSQRT3,-STBVOX_RSQRT3 }, // NE & down
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{ -STBVOX_RSQRT3, STBVOX_RSQRT3,-STBVOX_RSQRT3 }, // NW & down
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{ -STBVOX_RSQRT3,-STBVOX_RSQRT3,-STBVOX_RSQRT3 }, // SW & down
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{ STBVOX_RSQRT3,-STBVOX_RSQRT3,-STBVOX_RSQRT3 }, // SE & down
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{ 0,0,1 }, // up
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{ 0,0,-1 }, // down
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{ 0,-STBVOX_RSQRT2, STBVOX_RSQRT2 }, // south & up
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{ 0,-STBVOX_RSQRT2, -STBVOX_RSQRT2 }, // south & down
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};
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static float stbvox_default_texscale[128][2] =
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@ -774,7 +871,8 @@ stbvox_tagged_string stbvox_fragment_program[] =
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{ STBVOX_TAG_all,
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"out vec4 outcolor;\n"
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"uniform vec3 light_source[2];\n"
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"vec3 compute_lighting(vec3 pos, vec3 norm);\n"
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},
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{ STBVOX_TAG_all,
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@ -857,8 +955,9 @@ stbvox_tagged_string stbvox_fragment_program[] =
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" amb_color *= amb_occ;\n"
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" vec3 lit_color;\n"
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" vec3 lighting = compute_lighting(objectspace_pos + transform[1], normal) + amb_color * 0.25;\n"
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" if (!emissive)\n"
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" lit_color = amb_color * albedo;\n"
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" lit_color = lighting * albedo;\n"
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" else\n"
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" lit_color = albedo;\n"
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@ -881,6 +980,13 @@ stbvox_tagged_string stbvox_fragment_program[] =
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" vec4 final_color = vec4(lit_color, fragment_alpha);\n"
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" outcolor = final_color;\n"
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"}"
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"vec3 compute_lighting(vec3 pos, vec3 norm)\n"
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"{\n"
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" vec3 light_dir = light_source[0] - pos;\n"
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" float lambert = dot(light_dir, norm) / dot(light_dir, light_dir);\n"
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" return light_source[1] * clamp(lambert, 0.0, 1.0);\n"
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"}\n"
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},
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};
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@ -1000,12 +1106,7 @@ static unsigned char stbvox_rotate_face[6][4] =
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#define STBVOX_ROTATE(x,r) stbvox_rotate_face[x][r] // (((x)+(r))&3)
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static unsigned char face_info_for_side[6] =
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{
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0*4,1*4,2*4,3*4,4*4,5*4
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};
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stbvox_mesh_face stbvox_compute_mesh_face_value(stbvox_mesh_maker *mm, stbvox_rotate rot, int face, int v_off)
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stbvox_mesh_face stbvox_compute_mesh_face_value(stbvox_mesh_maker *mm, stbvox_rotate rot, int face, int v_off, int normal)
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{
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unsigned char color_face;
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stbvox_mesh_face face_data = { 0 };
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@ -1077,7 +1178,7 @@ stbvox_mesh_face stbvox_compute_mesh_face_value(stbvox_mesh_maker *mm, stbvox_ro
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if (mm->input.color3 && (mm->input.color3_facemask[v_off] & (1 << color_face)))
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face_data.color = mm->input.color3[v_off];
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}
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face_data.face_info = face_info_for_side[face] + rot.facerot;
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face_data.face_info = (normal<<2) + rot.facerot;
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return face_data;
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}
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@ -1248,9 +1349,9 @@ void stbvox_get_quad_vertex_pointer(stbvox_mesh_maker *mm, int mesh, stbvox_mesh
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}
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}
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void stbvox_make_mesh_for_face(stbvox_mesh_maker *mm, stbvox_rotate rot, int face, int v_off, stbvox_pos pos, stbvox_mesh_vertex vertbase, stbvox_mesh_vertex *face_coord, unsigned char mesh)
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void stbvox_make_mesh_for_face(stbvox_mesh_maker *mm, stbvox_rotate rot, int face, int v_off, stbvox_pos pos, stbvox_mesh_vertex vertbase, stbvox_mesh_vertex *face_coord, unsigned char mesh, int normal)
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{
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stbvox_mesh_face face_data = stbvox_compute_mesh_face_value(mm,rot,face,v_off);
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stbvox_mesh_face face_data = stbvox_compute_mesh_face_value(mm,rot,face,v_off, normal);
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// still need to compute ao & texlerp for each vertex
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@ -1365,10 +1466,10 @@ void stbvox_make_02_split_mesh_for_face(stbvox_mesh_maker *mm, stbvox_rotate rot
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v[1] = face_coord[1];
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v[2] = face_coord[2];
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v[3] = face_coord[0];
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stbvox_make_mesh_for_face(mm, rot, face1, v_off, pos, vertbase, v, mesh);
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stbvox_make_mesh_for_face(mm, rot, face1, v_off, pos, vertbase, v, mesh, face1);
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v[1] = face_coord[2];
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v[2] = face_coord[3];
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stbvox_make_mesh_for_face(mm, rot, face2, v_off, pos, vertbase, v, mesh);
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stbvox_make_mesh_for_face(mm, rot, face2, v_off, pos, vertbase, v, mesh, face2);
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}
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void stbvox_make_13_split_mesh_for_face(stbvox_mesh_maker *mm, stbvox_rotate rot, int face1, int face2, int v_off, stbvox_pos pos, stbvox_mesh_vertex vertbase, stbvox_mesh_vertex *face_coord, unsigned char mesh)
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@ -1378,10 +1479,10 @@ void stbvox_make_13_split_mesh_for_face(stbvox_mesh_maker *mm, stbvox_rotate rot
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v[1] = face_coord[2];
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v[2] = face_coord[3];
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v[3] = face_coord[1];
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stbvox_make_mesh_for_face(mm, rot, face1, v_off, pos, vertbase, v, mesh);
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stbvox_make_mesh_for_face(mm, rot, face1, v_off, pos, vertbase, v, mesh, face1);
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v[1] = face_coord[3];
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v[2] = face_coord[0];
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stbvox_make_mesh_for_face(mm, rot, face2, v_off, pos, vertbase, v, mesh);
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stbvox_make_mesh_for_face(mm, rot, face2, v_off, pos, vertbase, v, mesh, face2);
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}
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// simple case for mesh generation: we have only solid and empty blocks
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@ -1413,11 +1514,11 @@ void stbvox_make_mesh_for_block(stbvox_mesh_maker *mm, stbvox_pos pos, int v_off
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if (blockptr[ 1]==0) {
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rot.facerot = simple_rot;
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_up , v_off, pos, basevert, vmesh+4*STBVOX_FACE_up, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_up , v_off, pos, basevert, vmesh+4*STBVOX_FACE_up, mesh, STBVOX_FACE_up);
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}
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if (blockptr[-1]==0) {
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rot.facerot = (-simple_rot) & 3;
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_down, v_off, pos, basevert, vmesh+4*STBVOX_FACE_down, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_down, v_off, pos, basevert, vmesh+4*STBVOX_FACE_down, mesh, STBVOX_FACE_down);
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}
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if (mm->input.rotate) {
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@ -1432,13 +1533,13 @@ void stbvox_make_mesh_for_block(stbvox_mesh_maker *mm, stbvox_pos pos, int v_off
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rot.facerot = 0;
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if (blockptr[ ns_off]==0)
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_north, v_off, pos, basevert, vmesh+4*STBVOX_FACE_north, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_north, v_off, pos, basevert, vmesh+4*STBVOX_FACE_north, mesh, STBVOX_FACE_north);
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if (blockptr[-ns_off]==0)
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_south, v_off, pos, basevert, vmesh+4*STBVOX_FACE_south, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_south, v_off, pos, basevert, vmesh+4*STBVOX_FACE_south, mesh, STBVOX_FACE_south);
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if (blockptr[ ew_off]==0)
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_east , v_off, pos, basevert, vmesh+4*STBVOX_FACE_east, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_east , v_off, pos, basevert, vmesh+4*STBVOX_FACE_east, mesh, STBVOX_FACE_east);
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if (blockptr[-ew_off]==0)
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_west , v_off, pos, basevert, vmesh+4*STBVOX_FACE_west, mesh);
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stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_west , v_off, pos, basevert, vmesh+4*STBVOX_FACE_west, mesh, STBVOX_FACE_west);
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}
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@ -1519,6 +1620,24 @@ static unsigned char stbvox_facetype[STBVOX_GEOM_count][6] =
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{ STBVOX_FT_partial,STBVOX_FT_partial,STBVOX_FT_partial,STBVOX_FT_partial, STBVOX_FT_solid, STBVOX_FT_force }, // ceil vheight, all neighbors forced
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};
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// This table indicates what normal to use for the "up" face of a sloped geom
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// @TODO this could be done with math given the current arrangement of the enum, but let's not require it
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static unsigned char stbvox_floor_slope_for_rot[4] =
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{
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STBVOX_EFACE_south_up,
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STBVOX_EFACE_west_up, // @TODO: why is this reversed from what it should be? this is a north-is-up face, so slope should be south&up
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STBVOX_EFACE_north_up,
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STBVOX_EFACE_east_up,
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};
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static unsigned char stbvox_ceil_slope_for_rot[4] =
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{
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STBVOX_EFACE_south_down,
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STBVOX_EFACE_east_down,
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STBVOX_EFACE_north_down,
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STBVOX_EFACE_west_down,
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};
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// this table indicates whether, for each pair of types above, a face is visible.
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// each value indicates whether a given type is visible for all neighbor types
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static unsigned short stbvox_face_visible[STBVOX_FT_count] =
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@ -1749,13 +1868,26 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
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return;
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}
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if (visible_faces & (1 << STBVOX_FACE_up)) {
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rotate.facerot = simple_rot;
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stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_up , v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh);
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}
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if (visible_faces & (1 << STBVOX_FACE_down)) {
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rotate.facerot = (-rotate.facerot) & 3;
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stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh);
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if (geo >= STBVOX_GEOM_floor_slope_north_is_top) {
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if (visible_faces & (1 << STBVOX_FACE_up)) {
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int normal = geo == STBVOX_GEOM_floor_slope_north_is_top ? stbvox_floor_slope_for_rot[simple_rot] : STBVOX_FACE_up;
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rotate.facerot = simple_rot;
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stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_up , v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh, normal);
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}
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if (visible_faces & (1 << STBVOX_FACE_down)) {
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int normal = geo == STBVOX_GEOM_ceil_slope_north_is_bottom ? stbvox_ceil_slope_for_rot[simple_rot] : STBVOX_FACE_down;
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rotate.facerot = (-rotate.facerot) & 3;
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stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh, normal);
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}
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} else {
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if (visible_faces & (1 << STBVOX_FACE_up)) {
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rotate.facerot = simple_rot;
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stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_up , v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh, STBVOX_FACE_up);
|
||||
}
|
||||
if (visible_faces & (1 << STBVOX_FACE_down)) {
|
||||
rotate.facerot = (-rotate.facerot) & 3;
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh, STBVOX_FACE_down);
|
||||
}
|
||||
}
|
||||
|
||||
if (mm->input.rotate) {
|
||||
|
|
@ -1771,13 +1903,13 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
|
|||
rotate.facerot = 0;
|
||||
|
||||
if (visible_faces & (1 << STBVOX_FACE_north))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_north, v_off, pos, basevert, vmesh[STBVOX_FACE_north], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_north, v_off, pos, basevert, vmesh[STBVOX_FACE_north], mesh, STBVOX_FACE_north);
|
||||
if (visible_faces & (1 << STBVOX_FACE_south))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_south, v_off, pos, basevert, vmesh[STBVOX_FACE_south], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_south, v_off, pos, basevert, vmesh[STBVOX_FACE_south], mesh, STBVOX_FACE_south);
|
||||
if (visible_faces & (1 << STBVOX_FACE_east))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_east , v_off, pos, basevert, vmesh[STBVOX_FACE_east ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_east , v_off, pos, basevert, vmesh[STBVOX_FACE_east ], mesh, STBVOX_FACE_east);
|
||||
if (visible_faces & (1 << STBVOX_FACE_west))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_west , v_off, pos, basevert, vmesh[STBVOX_FACE_west ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_west , v_off, pos, basevert, vmesh[STBVOX_FACE_west ], mesh, STBVOX_FACE_west);
|
||||
}
|
||||
if (geo >= STBVOX_GEOM_floor_vheight_02) {
|
||||
// this case can also be generated with regular block gen with special vmesh,
|
||||
|
|
@ -1870,7 +2002,7 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
|
|||
stbvox_make_13_split_mesh_for_face(mm, rotate, STBVOX_FACE_up, STBVOX_FACE_up, v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh);
|
||||
} else
|
||||
#endif
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_up , v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_up , v_off, pos, basevert, vmesh[STBVOX_FACE_up], mesh, STBVOX_FACE_up);
|
||||
}
|
||||
if (visible_faces & (1 << STBVOX_FACE_down)) {
|
||||
#ifndef STBVOX_OPTIMIZED_VHEIGHT
|
||||
|
|
@ -1883,7 +2015,7 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
|
|||
stbvox_make_13_split_mesh_for_face(mm, rotate, STBVOX_FACE_down, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh);
|
||||
} else
|
||||
#endif
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_down, v_off, pos, basevert, vmesh[STBVOX_FACE_down], mesh, STBVOX_FACE_down);
|
||||
}
|
||||
|
||||
if (mm->input.rotate) {
|
||||
|
|
@ -1897,13 +2029,13 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
|
|||
}
|
||||
|
||||
if ((visible_faces & (1 << STBVOX_FACE_north)) || (extreme && (ht[2] == 3 || ht[3] == 3)))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_north, v_off, pos, basevert, vmesh[STBVOX_FACE_north], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_north, v_off, pos, basevert, vmesh[STBVOX_FACE_north], mesh, STBVOX_FACE_north);
|
||||
if ((visible_faces & (1 << STBVOX_FACE_south)) || (extreme && (ht[0] == 3 || ht[1] == 3)))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_south, v_off, pos, basevert, vmesh[STBVOX_FACE_south], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_south, v_off, pos, basevert, vmesh[STBVOX_FACE_south], mesh, STBVOX_FACE_south);
|
||||
if ((visible_faces & (1 << STBVOX_FACE_east)) || (extreme && (ht[1] == 3 || ht[3] == 3)))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_east , v_off, pos, basevert, vmesh[STBVOX_FACE_east ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_east , v_off, pos, basevert, vmesh[STBVOX_FACE_east ], mesh, STBVOX_FACE_east);
|
||||
if ((visible_faces & (1 << STBVOX_FACE_west)) || (extreme && (ht[0] == 3 || ht[2] == 3)))
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_west , v_off, pos, basevert, vmesh[STBVOX_FACE_west ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rotate, STBVOX_FACE_west , v_off, pos, basevert, vmesh[STBVOX_FACE_west ], mesh, STBVOX_FACE_west);
|
||||
}
|
||||
|
||||
if (geo == STBVOX_GEOM_crossed_pair) {
|
||||
|
|
@ -1935,10 +2067,10 @@ void stbvox_make_mesh_for_block_with_geo(stbvox_mesh_maker *mm, stbvox_pos pos,
|
|||
}
|
||||
rot.facerot = 0;
|
||||
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_north, v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_north], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_south, v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_south], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_east , v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_east ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_west , v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_west ], mesh);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_north, v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_north], mesh, STBVOX_EFACE_ne_up);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_south, v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_south], mesh, STBVOX_EFACE_sw_up);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_east , v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_east ], mesh, STBVOX_EFACE_se_up);
|
||||
stbvox_make_mesh_for_face(mm, rot, STBVOX_FACE_west , v_off, pos, basevert, stbvox_vmesh_crossed_pair[STBVOX_FACE_west ], mesh, STBVOX_EFACE_nw_up);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -781,6 +781,16 @@ void render_caves(float campos[3])
|
|||
glActiveTextureARB(GL_TEXTURE2_ARB);
|
||||
stbglEnableVertexAttribArray(0);
|
||||
|
||||
{
|
||||
float lighting[2][3] = { { campos[0],campos[1],campos[2] }, { 0.75,0.75,0.65f } };
|
||||
float bright = 15;
|
||||
lighting[1][0] *= bright;
|
||||
lighting[1][1] *= bright;
|
||||
lighting[1][2] *= bright;
|
||||
stbglUniform3fv(stbgl_find_uniform(main_prog, "light_source"), 2, lighting[0]);
|
||||
}
|
||||
|
||||
|
||||
num_meshes_uploaded = 0;
|
||||
update_meshes_from_render_thread();
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue