static int node_shader_gpu_oct_tex_float_image(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out) {
int ret;
float rgb[4];
int isdata;
Image *ima = (Image*)node->id;
ImageUser *iuser = NULL;
NodeTexImage *tex = node->storage;
if(!tex) {
node_oct_float_image_tex_init(0, node);
tex = node->storage;
}
isdata = tex->color_space == SHD_COLORSPACE_NONE;
in[0].type = GPU_VEC3;
in[0].link = GPU_attribute(CD_MTFACE, "");
in[1].type = GPU_NONE;
if(!ima) return GPU_stack_link(mat, "node_tex_image_empty", in, out, GPU_uniform(rgb));
node_shader_gpu_tex_mapping(mat, node, in, out);
ret = GPU_stack_link(mat, "node_tex_image", in, out, GPU_image(ima, iuser, isdata), GPU_uniform(rgb));
if(ret) {
ImBuf *ibuf = BKE_image_acquire_ibuf(ima, iuser, NULL);
if (ibuf && (ibuf->colormanage_flag & IMB_COLORMANAGE_IS_DATA) == 0 && GPU_material_do_color_management(mat)) {
GPU_link(mat, "srgb_to_linearrgb", out[0].link, &out[0].link);
}
BKE_image_release_ibuf(ima, ibuf, NULL);
}
return ret;
}
static int gpu_shader_mapping(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
TexMapping *texmap= node->storage;
float domin= (texmap->flag & TEXMAP_CLIP_MIN) != 0;
float domax= (texmap->flag & TEXMAP_CLIP_MAX) != 0;
GPUNodeLink *tmat = GPU_uniform((float*)texmap->mat);
GPUNodeLink *tmin = GPU_uniform(texmap->min);
GPUNodeLink *tmax = GPU_uniform(texmap->max);
GPUNodeLink *tdomin = GPU_uniform(&domin);
GPUNodeLink *tdomax = GPU_uniform(&domax);
return GPU_stack_link(mat, "mapping", in, out, tmat, tmin, tmax, tdomin, tdomax);
}
static int node_shader_gpu_tex_wave(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
if (!in[0].link) {
in[0].link = GPU_attribute(CD_ORCO, "");
GPU_link(mat, "generated_from_orco", in[0].link, &in[0].link);
}
node_shader_gpu_tex_mapping(mat, node, in, out);
NodeTexWave *tex = (NodeTexWave *)node->storage;
float wave_type = tex->wave_type;
float wave_profile = tex->wave_profile;
return GPU_stack_link(mat, "node_tex_wave", in, out, GPU_uniform(&wave_type), GPU_uniform(&wave_profile));
}
static int gpu_shader_normal(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
bNodeSocket *sock= node->outputs.first;
GPUNodeLink *vec = GPU_uniform(((bNodeSocketValueVector*)sock->default_value)->value);
return GPU_stack_link(mat, "normal", in, out, vec);
}
/* 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(GPUNodeStack *in)
{
if (in->link)
return in->link;
else
return GPU_uniform(in->vec);
}
static int gpu_shader_value(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
bNodeSocket *sock= node->outputs.first;
GPUNodeLink *vec = GPU_uniform(sock->ns.vec);
return GPU_stack_link(mat, "set_value", in, out, vec);
}
static int node_shader_gpu_tex_brick(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
if (!in[0].link) {
in[0].link = GPU_attribute(CD_ORCO, "");
GPU_link(mat, "generated_from_orco", in[0].link, &in[0].link);
}
node_shader_gpu_tex_mapping(mat, node, in, out);
NodeTexBrick *tex = (NodeTexBrick *)node->storage;
float offset_freq = tex->offset_freq;
float squash_freq = tex->squash_freq;
return GPU_stack_link(mat, "node_tex_brick",
in, out,
GPU_uniform(&tex->offset), GPU_uniform(&offset_freq),
GPU_uniform(&tex->squash), GPU_uniform(&squash_freq));
}
static int node_shader_gpu_tex_image(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
Image *ima = (Image *)node->id;
ImageUser *iuser = NULL;
NodeTexImage *tex = node->storage;
GPUNodeLink *norm;
int isdata = tex->color_space == SHD_COLORSPACE_NONE;
float blend = tex->projection_blend;
if (!ima)
return GPU_stack_link(mat, "node_tex_image_empty", in, out);
if (!in[0].link)
in[0].link = GPU_attribute(CD_MTFACE, "");
node_shader_gpu_tex_mapping(mat, node, in, out);
switch (tex->projection) {
case SHD_PROJ_FLAT:
GPU_stack_link(mat, "node_tex_image", in, out, GPU_image(ima, iuser, isdata));
break;
case SHD_PROJ_BOX:
GPU_link(mat, "direction_transform_m4v3", GPU_builtin(GPU_VIEW_NORMAL),
GPU_builtin(GPU_INVERSE_VIEW_MATRIX),
&norm);
GPU_link(mat, "direction_transform_m4v3", norm,
GPU_builtin(GPU_INVERSE_OBJECT_MATRIX),
&norm);
GPU_link(mat, "node_tex_image_box", in[0].link,
norm,
GPU_image(ima, iuser, isdata),
GPU_uniform(&blend),
&out[0].link,
&out[1].link);
break;
case SHD_PROJ_SPHERE:
GPU_link(mat, "point_texco_remap_square", in[0].link, &in[0].link);
GPU_link(mat, "point_map_to_sphere", in[0].link, &in[0].link);
GPU_stack_link(mat, "node_tex_image", in, out, GPU_image(ima, iuser, isdata));
break;
case SHD_PROJ_TUBE:
GPU_link(mat, "point_texco_remap_square", in[0].link, &in[0].link);
GPU_link(mat, "point_map_to_tube", in[0].link, &in[0].link);
GPU_stack_link(mat, "node_tex_image", in, out, GPU_image(ima, iuser, isdata));
break;
}
ImBuf *ibuf = BKE_image_acquire_ibuf(ima, iuser, NULL);
if ((tex->color_space == SHD_COLORSPACE_COLOR) &&
ibuf && (ibuf->colormanage_flag & IMB_COLORMANAGE_IS_DATA) == 0 &&
GPU_material_do_color_management(mat))
{
GPU_link(mat, "srgb_to_linearrgb", out[0].link, &out[0].link);
}
BKE_image_release_ibuf(ima, ibuf, NULL);
return true;
}
static int gpu_shader_rgb(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
bNodeSocket *sock= node->outputs.first;
float *col= ((bNodeSocketValueRGBA*)sock->default_value)->value;
GPUNodeLink *vec = GPU_uniform(col);
return GPU_stack_link(mat, "set_rgba", in, out, vec);
}
void node_shader_gpu_tex_mapping(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *UNUSED(out))
{
NodeTexBase *base = node->storage;
TexMapping *texmap = &base->tex_mapping;
float domin = (texmap->flag & TEXMAP_CLIP_MIN) != 0;
float domax = (texmap->flag & TEXMAP_CLIP_MAX) != 0;
if (domin || domax || !(texmap->flag & TEXMAP_UNIT_MATRIX)) {
GPUNodeLink *tmat = GPU_uniform((float *)texmap->mat);
GPUNodeLink *tmin = GPU_uniform(texmap->min);
GPUNodeLink *tmax = GPU_uniform(texmap->max);
GPUNodeLink *tdomin = GPU_uniform(&domin);
GPUNodeLink *tdomax = GPU_uniform(&domax);
GPU_link(mat, "mapping", in[0].link, tmat, tmin, tmax, tdomin, tdomax, &in[0].link);
if (texmap->type == TEXMAP_TYPE_NORMAL)
GPU_link(mat, "texco_norm", in[0].link, &in[0].link);
}
}
static int node_shader_gpu_tex_magic(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
NodeTexMagic *tex = (NodeTexMagic*)node->storage;
float depth = tex->depth;
if (!in[0].link)
in[0].link = GPU_attribute(CD_ORCO, "");
node_shader_gpu_tex_mapping(mat, node, in, out);
return GPU_stack_link(mat, "node_tex_magic", in, out, GPU_uniform(&depth));
}
static int gpu_shader_bump(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
if (!in[3].link)
in[3].link = GPU_builtin(GPU_VIEW_NORMAL);
else
GPU_link(mat, "direction_transform_m4v3", in[3].link, GPU_builtin(GPU_VIEW_MATRIX), &in[3].link);
float invert = node->custom1;
GPU_stack_link(mat, "node_bump", in, out, GPU_builtin(GPU_VIEW_POSITION), GPU_uniform(&invert));
/* Other nodes are applying view matrix if the input Normal has a link.
* We don't want normal to have view matrix applied twice, so we cancel it here.
*
* TODO(sergey): This is an extra multiplication which cancels each other,
* better avoid this but that requires bigger refactor.
*/
return GPU_link(mat, "direction_transform_m4v3", out[0].link, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &out[0].link);
}
static int node_shader_gpu_tex_image(GPUMaterial *mat, bNode *node, GPUNodeStack *in, GPUNodeStack *out)
{
Image *ima= (Image*)node->id;
ImageUser *iuser= NULL;
if (!ima) {
float black[4] = {0.0f, 0.0f, 0.0f, 1.0f};
GPUNodeLink *vec = GPU_uniform(black);
return GPU_stack_link(mat, "set_rgba", out, out, vec);
}
if (!in[0].link)
in[0].link = GPU_attribute(CD_MTFACE, "");
node_shader_gpu_tex_mapping(mat, node, in, out);
return GPU_stack_link(mat, "node_tex_image", in, out, GPU_image(ima, iuser));
}
static int gpu_shader_normal_map(GPUMaterial *mat, bNode *node, bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
NodeShaderNormalMap *nm = node->storage;
GPUNodeLink *negnorm;
GPUNodeLink *realnorm;
GPUNodeLink *strength;
float d[4] = {0, 0, 0, 0};
if (in[0].link)
strength = in[0].link;
else
strength = GPU_uniform(in[0].vec);
if (in[1].link)
realnorm = in[1].link;
else
realnorm = GPU_uniform(in[1].vec);
negnorm = GPU_builtin(GPU_VIEW_NORMAL);
GPU_link(mat, "math_max", strength, GPU_uniform(d), &strength);
if (GPU_material_use_world_space_shading(mat)) {
/* ******* CYCLES or BLENDER INTERNAL with world space shading flag ******* */
const char *color_to_normal_fnc_name = "color_to_normal_new_shading";
if (nm->space == SHD_SPACE_BLENDER_OBJECT || nm->space == SHD_SPACE_BLENDER_WORLD || !GPU_material_use_new_shading_nodes(mat))
color_to_normal_fnc_name = "color_to_blender_normal_new_shading";
switch (nm->space) {
case SHD_SPACE_TANGENT:
GPU_link(mat, "color_to_normal_new_shading", realnorm, &realnorm);
GPU_link(mat, "node_normal_map", GPU_attribute(CD_TANGENT, nm->uv_map), negnorm, realnorm, &realnorm);
GPU_link(mat, "vec_math_mix", strength, realnorm, GPU_builtin(GPU_VIEW_NORMAL), &out[0].link);
/* for uniform scale this is sufficient to match Cycles */
GPU_link(mat, "direction_transform_m4v3", out[0].link, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &out[0].link);
GPU_link(mat, "vect_normalize", out[0].link, &out[0].link);
return true;
case SHD_SPACE_OBJECT:
case SHD_SPACE_BLENDER_OBJECT:
GPU_link(mat, "direction_transform_m4v3", negnorm, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &negnorm);
GPU_link(mat, color_to_normal_fnc_name, realnorm, &realnorm);
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_OBJECT_MATRIX), &realnorm);
break;
case SHD_SPACE_WORLD:
case SHD_SPACE_BLENDER_WORLD:
GPU_link(mat, "direction_transform_m4v3", negnorm, GPU_builtin(GPU_INVERSE_VIEW_MATRIX), &negnorm);
GPU_link(mat, color_to_normal_fnc_name, realnorm, &realnorm);
break;
}
}
else {
/* ************** BLENDER INTERNAL without world space shading flag ******* */
GPU_link(mat, "color_to_normal", realnorm, &realnorm);
GPU_link(mat, "mtex_negate_texnormal", realnorm, &realnorm);
GPU_link(mat, "vec_math_negate", negnorm, &negnorm);
switch (nm->space) {
case SHD_SPACE_TANGENT:
GPU_link(mat, "node_normal_map", GPU_attribute(CD_TANGENT, nm->uv_map), negnorm, realnorm, &realnorm);
break;
case SHD_SPACE_OBJECT:
case SHD_SPACE_BLENDER_OBJECT:
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_LOC_TO_VIEW_MATRIX), &realnorm);
break;
case SHD_SPACE_WORLD:
case SHD_SPACE_BLENDER_WORLD:
GPU_link(mat, "direction_transform_m4v3", realnorm, GPU_builtin(GPU_VIEW_MATRIX), &realnorm);
break;
}
}
GPU_link(mat, "vec_math_mix", strength, realnorm, negnorm, &out[0].link);
GPU_link(mat, "vect_normalize", out[0].link, &out[0].link);
return true;
}
static int gpu_shader_normal(GPUMaterial *mat, bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
{
GPUNodeLink *vec = GPU_uniform(out[0].vec);
return GPU_stack_link(mat, "normal", in, out, vec);
}
static int node_shader_gpu_oct_portal_mat(struct GPUMaterial *mat, struct bNode *UNUSED(node), struct bNodeExecData *UNUSED(execdata), struct GPUNodeStack *UNUSED(in), struct GPUNodeStack *out) {
float rgb[4] = {0.1f, 0.1f, 0.1f, 0.5f};
float roughness[4] = {0};
return GPU_stack_link(mat, "node_bsdf_diffuse", 0, out, GPU_uniform(rgb), GPU_uniform(roughness), GPU_builtin(GPU_VIEW_NORMAL));
}