diff options
Diffstat (limited to 'source/blender/nodes/shader/nodes/node_shader_material.c')
| -rw-r--r-- | source/blender/nodes/shader/nodes/node_shader_material.c | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_material.c b/source/blender/nodes/shader/nodes/node_shader_material.c new file mode 100644 index 00000000000..8a73ddc1194 --- /dev/null +++ b/source/blender/nodes/shader/nodes/node_shader_material.c @@ -0,0 +1,374 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2005 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/nodes/shader/nodes/node_shader_material.c + * \ingroup shdnodes + */ + +#include "node_shader_util.h" + +/* **************** MATERIAL ******************** */ + +static bNodeSocketTemplate sh_node_material_in[] = { + { SOCK_RGBA, 1, N_("Color"), 0.0f, 0.0f, 0.0f, 1.0f}, + { SOCK_RGBA, 1, N_("Spec"), 0.0f, 0.0f, 0.0f, 1.0f}, + { SOCK_FLOAT, 1, N_("DiffuseIntensity"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { SOCK_VECTOR, 1, N_("Normal"), 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_DIRECTION}, + { -1, 0, "" } +}; + +static bNodeSocketTemplate sh_node_material_out[] = { + { SOCK_RGBA, 0, N_("Color")}, + { SOCK_FLOAT, 0, N_("Alpha")}, + { SOCK_VECTOR, 0, N_("Normal")}, + { -1, 0, "" } +}; + +/* **************** EXTENDED MATERIAL ******************** */ + +static bNodeSocketTemplate sh_node_material_ext_in[] = { + { SOCK_RGBA, 1, N_("Color"), 0.0f, 0.0f, 0.0f, 1.0f}, + { SOCK_RGBA, 1, N_("Spec"), 0.0f, 0.0f, 0.0f, 1.0f}, + { SOCK_FLOAT, 1, N_("DiffuseIntensity"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { SOCK_VECTOR, 1, N_("Normal"), 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_DIRECTION}, + { SOCK_RGBA, 1, N_("Mirror"), 0.0f, 0.0f, 0.0f, 1.0f}, + { SOCK_FLOAT, 1, N_("Ambient"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { SOCK_FLOAT, 1, N_("Emit"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_UNSIGNED}, + { SOCK_FLOAT, 1, N_("SpecTra"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { SOCK_FLOAT, 1, N_("Reflectivity"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_NONE}, + { SOCK_FLOAT, 1, N_("Alpha"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_UNSIGNED}, + { SOCK_FLOAT, 1, N_("Translucency"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { -1, 0, "" } +}; + +static bNodeSocketTemplate sh_node_material_ext_out[] = { + { SOCK_RGBA, 0, N_("Color")}, + { SOCK_FLOAT, 0, N_("Alpha")}, + { SOCK_VECTOR, 0, N_("Normal")}, + { SOCK_RGBA, 0, N_("Diffuse")}, + { SOCK_RGBA, 0, N_("Spec")}, + { SOCK_RGBA, 0, N_("AO")}, + { -1, 0, "" } +}; + +static void node_shader_exec_material(void *data, int UNUSED(thread), bNode *node, bNodeExecData *execdata, bNodeStack **in, bNodeStack **out) +{ + if (data && node->id) { + ShadeResult shrnode; + ShadeInput *shi; + ShaderCallData *shcd = data; + float col[4]; + bNodeSocket *sock; + char hasinput[NUM_MAT_IN] = {'\0'}; + int i, mode; + + /* note: cannot use the in[]->hasinput flags directly, as these are not necessarily + * the constant input stack values (e.g. in case material node is inside a group). + * we just want to know if a node input uses external data or the material setting. + * this is an ugly hack, but so is this node as a whole. + */ + for (sock = node->inputs.first, i = 0; sock; sock = sock->next, ++i) + hasinput[i] = (sock->link != NULL); + + shi = shcd->shi; + shi->mat = (Material *)node->id; + + /* copy all relevant material vars, note, keep this synced with render_types.h */ + memcpy(&shi->r, &shi->mat->r, 23 * sizeof(float)); + shi->har = shi->mat->har; + + /* write values */ + if (hasinput[MAT_IN_COLOR]) + nodestack_get_vec(&shi->r, SOCK_VECTOR, in[MAT_IN_COLOR]); + + if (hasinput[MAT_IN_SPEC]) + nodestack_get_vec(&shi->specr, SOCK_VECTOR, in[MAT_IN_SPEC]); + + if (hasinput[MAT_IN_REFL]) + nodestack_get_vec(&shi->refl, SOCK_FLOAT, in[MAT_IN_REFL]); + + /* retrieve normal */ + if (hasinput[MAT_IN_NORMAL]) { + nodestack_get_vec(shi->vn, SOCK_VECTOR, in[MAT_IN_NORMAL]); + if (shi->use_world_space_shading) { + negate_v3(shi->vn); + mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEW_MATRIX), shi->vn); + } + normalize_v3(shi->vn); + } + else + copy_v3_v3(shi->vn, shi->vno); + + /* custom option to flip normal */ + if (node->custom1 & SH_NODE_MAT_NEG) { + negate_v3(shi->vn); + } + + if (node->type == SH_NODE_MATERIAL_EXT) { + if (hasinput[MAT_IN_MIR]) + nodestack_get_vec(&shi->mirr, SOCK_VECTOR, in[MAT_IN_MIR]); + if (hasinput[MAT_IN_AMB]) + nodestack_get_vec(&shi->amb, SOCK_FLOAT, in[MAT_IN_AMB]); + if (hasinput[MAT_IN_EMIT]) + nodestack_get_vec(&shi->emit, SOCK_FLOAT, in[MAT_IN_EMIT]); + if (hasinput[MAT_IN_SPECTRA]) + nodestack_get_vec(&shi->spectra, SOCK_FLOAT, in[MAT_IN_SPECTRA]); + if (hasinput[MAT_IN_RAY_MIRROR]) + nodestack_get_vec(&shi->ray_mirror, SOCK_FLOAT, in[MAT_IN_RAY_MIRROR]); + if (hasinput[MAT_IN_ALPHA]) + nodestack_get_vec(&shi->alpha, SOCK_FLOAT, in[MAT_IN_ALPHA]); + if (hasinput[MAT_IN_TRANSLUCENCY]) + nodestack_get_vec(&shi->translucency, SOCK_FLOAT, in[MAT_IN_TRANSLUCENCY]); + } + + /* make alpha output give results even if transparency is only enabled on + * the material linked in this not and not on the parent material */ + mode = shi->mode; + if (shi->mat->mode & MA_TRANSP) + shi->mode |= MA_TRANSP; + + shi->nodes = 1; /* temp hack to prevent trashadow recursion */ + node_shader_lamp_loop(shi, &shrnode); /* clears shrnode */ + shi->nodes = 0; + + shi->mode = mode; + + /* write to outputs */ + if (node->custom1 & SH_NODE_MAT_DIFF) { + copy_v3_v3(col, shrnode.combined); + if (!(node->custom1 & SH_NODE_MAT_SPEC)) { + sub_v3_v3(col, shrnode.spec); + } + } + else if (node->custom1 & SH_NODE_MAT_SPEC) { + copy_v3_v3(col, shrnode.spec); + } + else + col[0] = col[1] = col[2] = 0.0f; + + col[3] = shrnode.alpha; + + if (shi->do_preview) + BKE_node_preview_set_pixel(execdata->preview, col, shi->xs, shi->ys, shi->do_manage); + + copy_v3_v3(out[MAT_OUT_COLOR]->vec, col); + out[MAT_OUT_ALPHA]->vec[0] = shrnode.alpha; + + if (node->custom1 & SH_NODE_MAT_NEG) { + shi->vn[0] = -shi->vn[0]; + shi->vn[1] = -shi->vn[1]; + shi->vn[2] = -shi->vn[2]; + } + + copy_v3_v3(out[MAT_OUT_NORMAL]->vec, shi->vn); + + if (shi->use_world_space_shading) { + negate_v3(out[MAT_OUT_NORMAL]->vec); + mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEWINV_MATRIX), out[MAT_OUT_NORMAL]->vec); + } + /* Extended material options */ + if (node->type == SH_NODE_MATERIAL_EXT) { + /* Shadow, Reflect, Refract, Radiosity, Speed seem to cause problems inside + * a node tree :( */ + copy_v3_v3(out[MAT_OUT_DIFFUSE]->vec, shrnode.diffshad); + copy_v3_v3(out[MAT_OUT_SPEC]->vec, shrnode.spec); + copy_v3_v3(out[MAT_OUT_AO]->vec, shrnode.ao); + } + + /* copy passes, now just active node */ + if (node->flag & NODE_ACTIVE_ID) { + float combined[4], alpha; + + copy_v4_v4(combined, shcd->shr->combined); + alpha = shcd->shr->alpha; + + *(shcd->shr) = shrnode; + + copy_v4_v4(shcd->shr->combined, combined); + shcd->shr->alpha = alpha; + } + } +} + + +static void node_shader_init_material(bNodeTree *UNUSED(ntree), bNode *node) +{ + node->custom1 = SH_NODE_MAT_DIFF | SH_NODE_MAT_SPEC; +} + +/* XXX this is also done as a local static function in gpu_codegen.c, + * but we need this to hack around the crappy material node. + */ +static GPUNodeLink *gpu_get_input_link(GPUMaterial *mat, GPUNodeStack *in) +{ + if (in->link) { + return in->link; + } + else { + GPUNodeLink *result = NULL; + + /* note GPU_uniform() is only intended to be used as a parameter to + * GPU_link(), returning it directly results in leaks or double frees */ + if (in->type == GPU_FLOAT) + GPU_link(mat, "set_value", GPU_uniform(in->vec), &result); + else if (in->type == GPU_VEC3) + GPU_link(mat, "set_rgb", GPU_uniform(in->vec), &result); + else if (in->type == GPU_VEC4) + GPU_link(mat, "set_rgba", GPU_uniform(in->vec), &result); + else + BLI_assert(0); + + return result; + } +} + +static int gpu_shader_material(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out) +{ + if (node->id) { + GPUShadeInput shi; + GPUShadeResult shr; + bNodeSocket *sock; + char hasinput[NUM_MAT_IN] = {'\0'}; + int i; + + /* note: cannot use the in[]->hasinput flags directly, as these are not necessarily + * the constant input stack values (e.g. in case material node is inside a group). + * we just want to know if a node input uses external data or the material setting. + */ + for (sock = node->inputs.first, i = 0; sock; sock = sock->next, ++i) + hasinput[i] = (sock->link != NULL); + + GPU_shadeinput_set(mat, (Material *)node->id, &shi); + + /* write values */ + if (hasinput[MAT_IN_COLOR]) + shi.rgb = gpu_get_input_link(mat, &in[MAT_IN_COLOR]); + + if (hasinput[MAT_IN_SPEC]) + shi.specrgb = gpu_get_input_link(mat, &in[MAT_IN_SPEC]); + + if (hasinput[MAT_IN_REFL]) + shi.refl = gpu_get_input_link(mat, &in[MAT_IN_REFL]); + + /* retrieve normal */ + if (hasinput[MAT_IN_NORMAL]) { + GPUNodeLink *tmp; + shi.vn = gpu_get_input_link(mat, &in[MAT_IN_NORMAL]); + if (GPU_material_use_world_space_shading(mat)) { + GPU_link(mat, "vec_math_negate", shi.vn, &shi.vn); + GPU_link(mat, "direction_transform_m4v3", shi.vn, GPU_builtin(GPU_VIEW_MATRIX), &shi.vn); + } + GPU_link(mat, "vec_math_normalize", shi.vn, &shi.vn, &tmp); + } + + /* custom option to flip normal */ + if (node->custom1 & SH_NODE_MAT_NEG) + GPU_link(mat, "vec_math_negate", shi.vn, &shi.vn); + + if (node->type == SH_NODE_MATERIAL_EXT) { + if (hasinput[MAT_IN_MIR]) + shi.mir = gpu_get_input_link(mat, &in[MAT_IN_MIR]); + if (hasinput[MAT_IN_AMB]) + shi.amb = gpu_get_input_link(mat, &in[MAT_IN_AMB]); + if (hasinput[MAT_IN_EMIT]) + shi.emit = gpu_get_input_link(mat, &in[MAT_IN_EMIT]); + if (hasinput[MAT_IN_SPECTRA]) + shi.spectra = gpu_get_input_link(mat, &in[MAT_IN_SPECTRA]); + if (hasinput[MAT_IN_ALPHA]) + shi.alpha = gpu_get_input_link(mat, &in[MAT_IN_ALPHA]); + } + + GPU_shaderesult_set(&shi, &shr); /* clears shr */ + + /* write to outputs */ + if (node->custom1 & SH_NODE_MAT_DIFF) { + out[MAT_OUT_COLOR].link = shr.combined; + + if (!(node->custom1 & SH_NODE_MAT_SPEC)) { + GPUNodeLink *link; + GPU_link(mat, "vec_math_sub", shr.combined, shr.spec, &out[MAT_OUT_COLOR].link, &link); + } + } + else if (node->custom1 & SH_NODE_MAT_SPEC) { + out[MAT_OUT_COLOR].link = shr.spec; + } + else + GPU_link(mat, "set_rgb_zero", &out[MAT_OUT_COLOR].link); + + GPU_link(mat, "mtex_alpha_to_col", out[MAT_OUT_COLOR].link, shr.alpha, &out[MAT_OUT_COLOR].link); + + out[MAT_OUT_ALPHA].link = shr.alpha; // + + if (node->custom1 & SH_NODE_MAT_NEG) + GPU_link(mat, "vec_math_negate", shi.vn, &shi.vn); + out[MAT_OUT_NORMAL].link = shi.vn; + if (GPU_material_use_world_space_shading(mat)) { + GPU_link(mat, "vec_math_negate", out[MAT_OUT_NORMAL].link, &out[MAT_OUT_NORMAL].link); + GPU_link(mat, "direction_transform_m4v3", out[MAT_OUT_NORMAL].link, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &out[MAT_OUT_NORMAL].link); + } + + if (node->type == SH_NODE_MATERIAL_EXT) { + out[MAT_OUT_DIFFUSE].link = shr.diff; + out[MAT_OUT_SPEC].link = shr.spec; + GPU_link(mat, "set_rgb_one", &out[MAT_OUT_AO].link); + } + + return 1; + } + + return 0; +} + +void register_node_type_sh_material(void) +{ + static bNodeType ntype; + + sh_node_type_base(&ntype, SH_NODE_MATERIAL, "Material", NODE_CLASS_INPUT, NODE_PREVIEW); + node_type_compatibility(&ntype, NODE_OLD_SHADING); + node_type_socket_templates(&ntype, sh_node_material_in, sh_node_material_out); + node_type_init(&ntype, node_shader_init_material); + node_type_exec(&ntype, NULL, NULL, node_shader_exec_material); + node_type_gpu(&ntype, gpu_shader_material); + + nodeRegisterType(&ntype); +} + + +void register_node_type_sh_material_ext(void) +{ + static bNodeType ntype; + + sh_node_type_base(&ntype, SH_NODE_MATERIAL_EXT, "Extended Material", NODE_CLASS_INPUT, NODE_PREVIEW); + node_type_compatibility(&ntype, NODE_OLD_SHADING); + node_type_socket_templates(&ntype, sh_node_material_ext_in, sh_node_material_ext_out); + node_type_init(&ntype, node_shader_init_material); + node_type_size_preset(&ntype, NODE_SIZE_MIDDLE); + node_type_exec(&ntype, NULL, NULL, node_shader_exec_material); + node_type_gpu(&ntype, gpu_shader_material); + + nodeRegisterType(&ntype); +} |