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#include "workbench_private.h"
#include "BIF_gl.h"
#include "BLI_dynstr.h"
#include "BLI_hash.h"
#define HSV_SATURATION 0.5
#define HSV_VALUE 0.8
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;
copy_v4_fl4(data->diffuse_color, 0.8f, 0.8f, 0.8f, 1.0f);
copy_v4_fl4(data->specular_color, 0.05f, 0.05f, 0.05f, 1.0f); /* Dielectric: 5% reflective. */
data->roughness = 0.5; /* sqrtf(0.25f); */
if (color_type == V3D_SHADING_SINGLE_COLOR) {
copy_v3_v3(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 hue = BLI_hash_int_01(hash);
float hsv[3] = {hue, HSV_SATURATION, HSV_VALUE};
hsv_to_rgb_v(hsv, data->diffuse_color);
}
else {
/* V3D_SHADING_MATERIAL_COLOR */
if (mat) {
if (SPECULAR_HIGHLIGHT_ENABLED(wpd)) {
mul_v3_v3fl(data->diffuse_color, &mat->r, 1.0f - mat->metallic);
mul_v3_v3fl(data->specular_color, &mat->r, mat->metallic);
add_v3_fl(data->specular_color, 0.05f * (1.0f - mat->metallic));
data->roughness = sqrtf(mat->roughness); /* Remap to disney roughness. */
}
else {
copy_v3_v3(data->diffuse_color, &mat->r);
}
}
}
}
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 (SSAO_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_SSAO\n");
}
if (CURVATURE_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define V3D_SHADING_CURVATURE\n");
if (U.pixelsize > 1.5f) {
BLI_dynstr_appendf(ds, "#define CURVATURE_OFFSET 2\n");
}
else {
BLI_dynstr_appendf(ds, "#define CURVATURE_OFFSET 1\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_TYPE_WORLD_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_TYPE_WORLD\n");
}
if (STUDIOLIGHT_TYPE_STUDIO_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_TYPE_STUDIO\n");
}
if (STUDIOLIGHT_TYPE_MATCAP_ENABLED(wpd)) {
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_TYPE_MATCAP\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");
}
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SH_BANDS %d\n", STUDIOLIGHT_SH_BANDS);
BLI_dynstr_appendf(ds, "#define STUDIOLIGHT_SH_MAX_COMPONENTS %d\n", WORKBENCH_SH_DATA_LEN);
str = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
return str;
}
uint workbench_material_get_hash(WORKBENCH_MaterialData *material_template, bool is_ghost)
{
uint input[4];
uint result;
float *color = material_template->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->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->roughness * 512);
result += BLI_ghashutil_uinthash_v4_murmur(input);
result += BLI_ghashutil_uinthash((uint)is_ghost);
/* add texture reference */
if (material_template->ima) {
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, SSAO_ENABLED(wpd), 1 << 5);
SET_FLAG_FROM_TEST(index, wpd->shading.flag & V3D_SHADING_OBJECT_OUTLINE, 1 << 6);
bool uses_curvature = CURVATURE_ENABLED(wpd);
SET_FLAG_FROM_TEST(index, uses_curvature, 1 << 7);
SET_FLAG_FROM_TEST(index, uses_curvature && (U.pixelsize > 1.5f), 1 << 8);
/* 2 bits STUDIOLIGHT_ORIENTATION */
SET_FLAG_FROM_TEST(index, wpd->studio_light->flag & STUDIOLIGHT_TYPE_WORLD, 1 << 9);
SET_FLAG_FROM_TEST(index, wpd->studio_light->flag & STUDIOLIGHT_TYPE_MATCAP, 1 << 10);
/* 1 bit for hair */
SET_FLAG_FROM_TEST(index, is_hair, 1 << 11);
return index;
}
int workbench_material_determine_color_type(WORKBENCH_PrivateData *wpd, Image *ima, Object *ob)
{
int color_type = wpd->shading.color_type;
if ((color_type == V3D_SHADING_TEXTURE_COLOR && ima == NULL) || (ob->dt < OB_TEXTURE)) {
color_type = V3D_SHADING_MATERIAL_COLOR;
}
return color_type;
}
void workbench_material_shgroup_uniform(
WORKBENCH_PrivateData *wpd, DRWShadingGroup *grp, WORKBENCH_MaterialData *material, Object *ob)
{
if (workbench_material_determine_color_type(wpd, material->ima, ob) == V3D_SHADING_TEXTURE_COLOR) {
GPUTexture *tex = GPU_texture_from_blender(material->ima, NULL, GL_TEXTURE_2D, false, 0.0f);
DRW_shgroup_uniform_texture(grp, "image", tex);
}
else {
DRW_shgroup_uniform_vec4(grp, "materialDiffuseColor", material->diffuse_color, 1);
}
if (SPECULAR_HIGHLIGHT_ENABLED(wpd)) {
DRW_shgroup_uniform_vec4(grp, "materialSpecularColor", material->specular_color, 1);
DRW_shgroup_uniform_float(grp, "materialRoughness", &material->roughness, 1);
}
}
void workbench_material_copy(WORKBENCH_MaterialData *dest_material, const WORKBENCH_MaterialData *source_material)
{
dest_material->object_id = source_material->object_id;
copy_v4_v4(dest_material->diffuse_color, source_material->diffuse_color);
copy_v4_v4(dest_material->specular_color, source_material->specular_color);
dest_material->roughness = source_material->roughness;
dest_material->ima = source_material->ima;
}
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