diff options
Diffstat (limited to 'dimension/realize.c')
| -rw-r--r-- | dimension/realize.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/dimension/realize.c b/dimension/realize.c index 3b1d327..84d04c6 100644 --- a/dimension/realize.c +++ b/dimension/realize.c @@ -56,9 +56,42 @@ dmnsn_realize_vector(dmnsn_astnode astnode) return dmnsn_new_vector(x, y, z); } +static dmnsn_color +dmnsn_realize_color(dmnsn_astnode astnode) +{ + if (astnode.type != DMNSN_AST_VECTOR) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a color."); + } + + + dmnsn_astnode rnode, gnode, bnode, fnode, tnode; + dmnsn_array_get(astnode.children, 0, &rnode); + dmnsn_array_get(astnode.children, 1, &gnode); + dmnsn_array_get(astnode.children, 2, &bnode); + dmnsn_array_get(astnode.children, 3, &fnode); + dmnsn_array_get(astnode.children, 4, &tnode); + + double r = dmnsn_realize_float(rnode), + g = dmnsn_realize_float(gnode), + b = dmnsn_realize_float(bnode), + f = dmnsn_realize_float(fnode), + t = dmnsn_realize_float(tnode); + + dmnsn_sRGB sRGB = { .R = r, .G = g, .B = b }; + dmnsn_color color = dmnsn_color_from_sRGB(sRGB); + color.filter = f; + color.trans = t; + + return color; +} + static dmnsn_object * dmnsn_realize_rotation(dmnsn_astnode astnode, dmnsn_object *object) { + if (astnode.type != DMNSN_AST_ROTATION) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a rotation."); + } + const double deg2rad = atan(1.0)/45.0; dmnsn_astnode angle_node; @@ -89,6 +122,10 @@ dmnsn_realize_rotation(dmnsn_astnode astnode, dmnsn_object *object) static dmnsn_object * dmnsn_realize_scale(dmnsn_astnode astnode, dmnsn_object *object) { + if (astnode.type != DMNSN_AST_SCALE) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a scale."); + } + dmnsn_astnode scale_node; dmnsn_array_get(astnode.children, 0, &scale_node); dmnsn_vector scale = dmnsn_realize_vector(scale_node); @@ -100,6 +137,10 @@ dmnsn_realize_scale(dmnsn_astnode astnode, dmnsn_object *object) static dmnsn_object * dmnsn_realize_translation(dmnsn_astnode astnode, dmnsn_object *object) { + if (astnode.type != DMNSN_AST_TRANSLATION) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a translation."); + } + dmnsn_astnode trans_node; dmnsn_array_get(astnode.children, 0, &trans_node); dmnsn_vector trans = dmnsn_realize_vector(trans_node); @@ -112,8 +153,77 @@ dmnsn_realize_translation(dmnsn_astnode astnode, dmnsn_object *object) } static dmnsn_object * +dmnsn_realize_pigment(dmnsn_astnode astnode, dmnsn_object *object) +{ + if (astnode.type != DMNSN_AST_PIGMENT) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a pigment."); + } + + if (!object->texture) { + object->texture = dmnsn_new_texture(); + if (!object->texture) { + dmnsn_delete_object(object); + return NULL; + } + } + dmnsn_delete_pigment(object->texture->pigment); + + dmnsn_astnode color_node; + dmnsn_array_get(astnode.children, 0, &color_node); + + dmnsn_color color; + switch (color_node.type) { + case DMNSN_AST_NONE: + break; + + case DMNSN_AST_VECTOR: + color = dmnsn_realize_color(color_node); + object->texture->pigment = dmnsn_new_solid_pigment(color); + if (!object->texture->pigment) { + dmnsn_delete_object(object); + return NULL; + } + break; + + default: + dmnsn_error(DMNSN_SEVERITY_HIGH, "Invalid pigment color."); + } + + return object; +} + +static dmnsn_object * +dmnsn_realize_texture(dmnsn_astnode astnode, dmnsn_object *object) +{ + if (astnode.type != DMNSN_AST_TEXTURE) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected a texture."); + } + + unsigned int i; + for (i = 0; i < dmnsn_array_size(astnode.children); ++i) { + dmnsn_astnode modifier; + dmnsn_array_get(astnode.children, i, &modifier); + + switch (modifier.type) { + case DMNSN_AST_PIGMENT: + object = dmnsn_realize_pigment(modifier, object); + break; + + default: + dmnsn_error(DMNSN_SEVERITY_HIGH, "Invalid texture item."); + } + } + + return object; +} + +static dmnsn_object * dmnsn_realize_object_modifiers(dmnsn_astnode astnode, dmnsn_object *object) { + if (astnode.type != DMNSN_AST_OBJECT_MODIFIERS) { + dmnsn_error(DMNSN_SEVERITY_HIGH, "Expected object modifiers."); + } + unsigned int i; for (i = 0; i < dmnsn_array_size(astnode.children); ++i) { dmnsn_astnode modifier; @@ -130,6 +240,10 @@ dmnsn_realize_object_modifiers(dmnsn_astnode astnode, dmnsn_object *object) object = dmnsn_realize_translation(modifier, object); break; + case DMNSN_AST_TEXTURE: + object = dmnsn_realize_texture(modifier, object); + break; + default: dmnsn_error(DMNSN_SEVERITY_HIGH, "Invalid object modifier."); } @@ -225,6 +339,14 @@ dmnsn_realize(const dmnsn_array *astree) return NULL; } + /* Default finish */ + scene->default_texture->finish = dmnsn_new_phong_finish(1.0, 0.5, 50.0); + if (!scene->default_texture->finish) { + dmnsn_delete_scene(scene); + return NULL; + } + scene->default_texture->finish->ambient = 0.1; + /* Background color */ dmnsn_sRGB background_sRGB = { .R = 0.0, .G = 0.0, .B = 0.1 }; scene->background = dmnsn_color_from_sRGB(background_sRGB); @@ -260,6 +382,18 @@ dmnsn_realize(const dmnsn_array *astree) } dmnsn_set_perspective_camera_trans(scene->camera, trans); + /* Make a light */ + + dmnsn_light *light = dmnsn_new_point_light( + dmnsn_new_vector(-15.0, 20.0, 10.0), + dmnsn_white + ); + if (!light) { + dmnsn_delete_scene(scene); + return NULL; + } + dmnsn_array_push(scene->lights, &light); + /* * Now parse the abstract syntax tree */ |