/* Calls multitex and copies the result to the outputs. Called by xxx_exec, which handles inputs. */
static void do_proc(float *result, TexParams *p, const float col1[4], const float col2[4], char is_normal, Tex *tex, const short thread)
{
TexResult texres;
int textype;
if (is_normal) {
texres.nor = result;
}
else
texres.nor = NULL;
textype = multitex_nodes(tex, p->co, p->dxt, p->dyt, p->osatex,
&texres, thread, 0, p->shi, p->mtex);
if (is_normal)
return;
if (textype & TEX_RGB) {
copy_v4_v4(result, &texres.tr);
}
else {
copy_v4_v4(result, col1);
ramp_blend(MA_RAMP_BLEND, result, texres.tin, col2);
}
}
static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
{
Tex *nodetex = (Tex *)node->id;
static float red[] = {1,0,0,1};
static float white[] = {1,1,1,1};
float co[3], dxt[3], dyt[3];
copy_v3_v3(co, p->co);
copy_v3_v3(dxt, p->dxt);
copy_v3_v3(dyt, p->dyt);
if(node->custom2 || node->need_exec==0) {
/* this node refers to its own texture tree! */
QUATCOPY(out, (fabs(co[0] - co[1]) < .01) ? white : red );
}
else if(nodetex) {
TexResult texres;
int textype;
float nor[] = {0,0,0};
float col1[4], col2[4];
tex_input_rgba(col1, in[0], p, thread);
tex_input_rgba(col2, in[1], p, thread);
texres.nor = nor;
textype = multitex_nodes(nodetex, co, dxt, dyt, p->osatex,
&texres, thread, 0, p->shi, p->mtex);
if(textype & TEX_RGB) {
QUATCOPY(out, &texres.tr);
}
else {
QUATCOPY(out, col1);
ramp_blend(MA_RAMP_BLEND, out, out+1, out+2, texres.tin, col2);
}
}
}
static void node_shader_exec_texture(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
if(data && node->id) {
ShadeInput *shi= ((ShaderCallData *)data)->shi;
TexResult texres;
float vec[3], nor[3]={0.0f, 0.0f, 0.0f};
int retval;
short which_output = node->custom1;
short thread = shi->thread;
/* out: value, color, normal */
/* we should find out if a normal as output is needed, for now we do all */
texres.nor= nor;
texres.tr= texres.tg= texres.tb= 0.0f;
if(in[0]->hasinput) {
nodestack_get_vec(vec, SOCK_VECTOR, in[0]);
if(in[0]->datatype==NS_OSA_VECTORS) {
float *fp= in[0]->data;
retval= multitex_nodes((Tex *)node->id, vec, fp, fp+3, shi->osatex, &texres, thread, which_output, NULL, NULL);
}
else if(in[0]->datatype==NS_OSA_VALUES) {
float *fp= in[0]->data;
float dxt[3], dyt[3];
dxt[0]= fp[0]; dxt[1]= dxt[2]= 0.0f;
dyt[0]= fp[1]; dyt[1]= dyt[2]= 0.0f;
retval= multitex_nodes((Tex *)node->id, vec, dxt, dyt, shi->osatex, &texres, thread, which_output, NULL, NULL);
}
else
retval= multitex_nodes((Tex *)node->id, vec, NULL, NULL, 0, &texres, thread, which_output, NULL, NULL);
}
else {
VECCOPY(vec, shi->lo);
retval= multitex_nodes((Tex *)node->id, vec, NULL, NULL, 0, &texres, thread, which_output, NULL, NULL);
}
/* stupid exception */
if( ((Tex *)node->id)->type==TEX_STUCCI) {
texres.tin= 0.5f + 0.7f*texres.nor[0];
CLAMP(texres.tin, 0.0f, 1.0f);
}
/* intensity and color need some handling */
if(texres.talpha)
out[0]->vec[0]= texres.ta;
else
out[0]->vec[0]= texres.tin;
if((retval & TEX_RGB)==0) {
out[1]->vec[0]= out[0]->vec[0];
out[1]->vec[1]= out[0]->vec[0];
out[1]->vec[2]= out[0]->vec[0];
out[1]->vec[3]= 1.0f;
}
else {
out[1]->vec[0]= texres.tr;
out[1]->vec[1]= texres.tg;
out[1]->vec[2]= texres.tb;
out[1]->vec[3]= 1.0f;
}
VECCOPY(out[2]->vec, nor);
if(shi->do_preview)
nodeAddToPreview(node, out[1]->vec, shi->xs, shi->ys, shi->do_manage);
}
}
static void node_shader_exec_texture(void *data, int UNUSED(thread), bNode *node, bNodeExecData *execdata, bNodeStack **in, bNodeStack **out)
{
if (data && node->id) {
ShadeInput *shi = ((ShaderCallData *)data)->shi;
TexResult texres;
bNodeSocket *sock_vector = node->inputs.first;
float vec[3], nor[3] = {0.0f, 0.0f, 0.0f};
int retval;
short which_output = node->custom1;
short thread = shi->thread;
/* out: value, color, normal */
/* we should find out if a normal as output is needed, for now we do all */
texres.nor = nor;
texres.tr = texres.tg = texres.tb = 0.0f;
/* don't use in[0]->hasinput, see material node for explanation */
if (sock_vector->link) {
nodestack_get_vec(vec, SOCK_VECTOR, in[0]);
if (in[0]->datatype == NS_OSA_VECTORS) {
float *fp = in[0]->data;
retval = multitex_nodes((Tex *)node->id, vec, fp, fp + 3, shi->osatex, &texres, thread, which_output, NULL, NULL, NULL);
}
else if (in[0]->datatype == NS_OSA_VALUES) {
const float *fp = in[0]->data;
float dxt[3], dyt[3];
dxt[0] = fp[0]; dxt[1] = dxt[2] = 0.0f;
dyt[0] = fp[1]; dyt[1] = dyt[2] = 0.0f;
retval = multitex_nodes((Tex *)node->id, vec, dxt, dyt, shi->osatex, &texres, thread, which_output, NULL, NULL, NULL);
}
else
retval = multitex_nodes((Tex *)node->id, vec, NULL, NULL, 0, &texres, thread, which_output, NULL, NULL, NULL);
}
else {
copy_v3_v3(vec, shi->lo);
retval = multitex_nodes((Tex *)node->id, vec, NULL, NULL, 0, &texres, thread, which_output, NULL, NULL, NULL);
}
/* stupid exception */
if ( ((Tex *)node->id)->type == TEX_STUCCI) {
texres.tin = 0.5f + 0.7f * texres.nor[0];
CLAMP(texres.tin, 0.0f, 1.0f);
}
/* intensity and color need some handling */
if (texres.talpha)
out[0]->vec[0] = texres.ta;
else
out[0]->vec[0] = texres.tin;
if ((retval & TEX_RGB) == 0) {
copy_v3_fl(out[1]->vec, out[0]->vec[0]);
out[1]->vec[3] = 1.0f;
}
else {
copy_v3_v3(out[1]->vec, &texres.tr);
out[1]->vec[3] = 1.0f;
}
copy_v3_v3(out[2]->vec, nor);
if (shi->do_preview) {
BKE_node_preview_set_pixel(execdata->preview, out[1]->vec, shi->xs, shi->ys, shi->do_manage);
}
}
}
