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#include "workbench_private.h"
#include "BLI_dynstr.h"
#define HSV_SATURATION 0.5
#define HSV_VALUE 0.9
void workbench_material_update_data(WORKBENCH_PrivateData *wpd, Object *ob, Material *mat, WORKBENCH_MaterialData *data)
{
/* When V3D_SHADING_TEXTURE_COLOR is active, use V3D_SHADING_MATERIAL_COLOR as fallback when no texture could be determined */
int color_type = wpd->shading.color_type == V3D_SHADING_TEXTURE_COLOR ? V3D_SHADING_MATERIAL_COLOR : wpd->shading.color_type;
static float default_diffuse_color[] = {0.8f, 0.8f, 0.8f, 1.0f};
static float default_specular_color[] = {0.5f, 0.5f, 0.5f, 0.5f};
copy_v4_v4(data->material_data.diffuse_color, default_diffuse_color);
copy_v4_v4(data->material_data.specular_color, default_specular_color);
data->material_data.roughness = 0.5f;
if (color_type == V3D_SHADING_SINGLE_COLOR) {
copy_v3_v3(data->material_data.diffuse_color, wpd->shading.single_color);
}
else if (color_type == V3D_SHADING_RANDOM_COLOR) {
uint hash = BLI_ghashutil_strhash_p_murmur(ob->id.name);
if (ob->id.lib) {
hash = (hash * 13) ^ BLI_ghashutil_strhash_p_murmur(ob->id.lib->name);
}
float offset = fmodf((hash / 100000.0) * M_GOLDEN_RATION_CONJUGATE, 1.0);
float hsv[3] = {offset, HSV_SATURATION, HSV_VALUE};
hsv_to_rgb_v(hsv, data->material_data.diffuse_color);
}
else {
/* V3D_SHADING_MATERIAL_COLOR */
if (mat) {
copy_v3_v3(data->material_data.diffuse_color, &mat->r);
copy_v3_v3(data->material_data.specular_color, &mat->specr);
data->material_data.roughness = mat->roughness;
}
}
}
char *workbench_material_build_defines(WORKBENCH_PrivateData *wpd, bool use_textures, bool is_hair)
{
char *str = NULL;
DynStr *ds = BLI_dynstr_new();
if (wpd->shading.flag & V3D_SHADING_OBJECT_OUTLINE) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_OBJECT_OUTLINE\n");
}
if (wpd->shading.flag & V3D_SHADING_SHADOW) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_SHADOW\n");
}
if (CAVITY_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_CAVITY\n");
}
if (SPECULAR_HIGHLIGHT_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_SPECULAR_HIGHLIGHT\n");
}
if (STUDIOLIGHT_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_LIGHTING_STUDIO\n");
}
if (FLAT_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_LIGHTING_FLAT\n");
}
if (MATCAP_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_LIGHTING_MATCAP\n");
}
if (STUDIOLIGHT_ORIENTATION_WORLD_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_ORIENTATION_WORLD\n");
}
if (STUDIOLIGHT_ORIENTATION_CAMERA_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_ORIENTATION_CAMERA\n");
}
if (STUDIOLIGHT_ORIENTATION_VIEWNORMAL_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_ORIENTATION_VIEWNORMAL\n");
}
if (NORMAL_VIEWPORT_PASS_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define NORMAL_VIEWPORT_PASS_ENABLED\n");
}
if (use_textures) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_TEXTURE_COLOR\n");
}
if (NORMAL_ENCODING_ENABLED()) {
BLI_dynstr_appendf(ds, "#define WORKBENCH_ENCODE_NORMALS\n");
}
if (is_hair) {
BLI_dynstr_appendf(ds, "#define HAIR_SHADER\n");
}
#if STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL == 0
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL 0\n");
#endif
#if STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL == 1
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL 1\n");
#endif
#if STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL == 2
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SPHERICAL_HARMONICS_LEVEL 2\n");
#endif
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SPHERICAL_HARMONICS_MAX_COMPONENTS 9\n");
str = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
return str;
}
uint workbench_material_get_hash(WORKBENCH_MaterialData *material_template)
{
uint input[4];
uint result;
float *color = material_template->material_data.diffuse_color;
input[0] = (uint)(color[0] * 512);
input[1] = (uint)(color[1] * 512);
input[2] = (uint)(color[2] * 512);
input[3] = material_template->object_id;
result = BLI_ghashutil_uinthash_v4_murmur(input);
color = material_template->material_data.specular_color;
input[0] = (uint)(color[0] * 512);
input[1] = (uint)(color[1] * 512);
input[2] = (uint)(color[2] * 512);
input[3] = (uint)(material_template->material_data.roughness * 512);
result += BLI_ghashutil_uinthash_v4_murmur(input);
if (material_template->color_type == V3D_SHADING_TEXTURE_COLOR) {
/* add texture reference */
result += BLI_ghashutil_inthash_p_murmur(material_template->ima);
}
return result;
}
int workbench_material_get_shader_index(WORKBENCH_PrivateData *wpd, bool use_textures, bool is_hair)
{
/* NOTE: change MAX_SHADERS accordingly when modifying this function. */
int index = 0;
/* 1 bit V3D_SHADING_TEXTURE_COLOR */
SET_FLAG_FROM_TEST(index, use_textures, 1 << 0);
/* 2 bits FLAT/STUDIO/MATCAP/SCENE */
SET_FLAG_FROM_TEST(index, wpd->shading.light, wpd->shading.light << 1);
/* 1 bit V3D_SHADING_SPECULAR_HIGHLIGHT */
SET_FLAG_FROM_TEST(index, wpd->shading.flag & V3D_SHADING_SPECULAR_HIGHLIGHT, 1 << 3);
SET_FLAG_FROM_TEST(index, wpd->shading.flag & V3D_SHADING_SHADOW, 1 << 4);
SET_FLAG_FROM_TEST(index, wpd->shading.flag & V3D_SHADING_CAVITY, 1 << 5);
SET_FLAG_FROM_TEST(index, wpd->shading.flag & V3D_SHADING_OBJECT_OUTLINE, 1 << 6);
/* 2 bits STUDIOLIGHT_ORIENTATION */
SET_FLAG_FROM_TEST(index, wpd->studio_light->flag & STUDIOLIGHT_ORIENTATION_WORLD, 1 << 7);
SET_FLAG_FROM_TEST(index, wpd->studio_light->flag & STUDIOLIGHT_ORIENTATION_VIEWNORMAL, 1 << 8);
/* 1 bit for hair */
SET_FLAG_FROM_TEST(index, is_hair, 1 << 9);
return index;
}
void workbench_material_set_normal_world_matrix(
DRWShadingGroup *grp, WORKBENCH_PrivateData *wpd, float persistent_matrix[3][3])
{
if (STUDIOLIGHT_ORIENTATION_WORLD_ENABLED(wpd)) {
float view_matrix_inverse[4][4];
float rot_matrix[4][4];
float matrix[4][4];
axis_angle_to_mat4_single(rot_matrix, 'Z', -wpd->shading.studiolight_rot_z);
DRW_viewport_matrix_get(view_matrix_inverse, DRW_MAT_VIEWINV);
mul_m4_m4m4(matrix, rot_matrix, view_matrix_inverse);
copy_m3_m4(persistent_matrix, matrix);
DRW_shgroup_uniform_mat3(grp, "normalWorldMatrix", persistent_matrix);
}
}
int workbench_material_determine_color_type(WORKBENCH_PrivateData *wpd, Image *ima)
{
int color_type = wpd->shading.color_type;
if (color_type == V3D_SHADING_TEXTURE_COLOR && ima == NULL) {
color_type = V3D_SHADING_MATERIAL_COLOR;
}
return color_type;
}
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