Exemplo n.º 1
0
static void strand_shade_point(Render *re, ShadeSample *ssamp, StrandSegment *sseg, StrandVert *svert, StrandPoint *spoint)
{
	ShadeInput *shi= ssamp->shi;
	ShadeResult *shr= ssamp->shr;
	VlakRen vlr;
	int seed;

	memset(&vlr, 0, sizeof(vlr));
	vlr.flag= R_SMOOTH;
	if (sseg->buffer->ma->mode & MA_TANGENT_STR)
		vlr.flag |= R_TANGENT;

	shi->vlr= &vlr;
	shi->v1= NULL;
	shi->v2= NULL;
	shi->v3= NULL;
	shi->strand= sseg->strand;
	shi->obi= sseg->obi;
	shi->obr= sseg->obi->obr;

	/* cache for shadow */
	shi->samplenr= re->shadowsamplenr[shi->thread]++;

	/* all samples */
	shi->mask= 0xFFFF;

	/* seed RNG for consistent results across tiles */
	seed = shi->strand->index + (svert - shi->strand->vert);
	BLI_thread_srandom(shi->thread, seed);

	shade_input_set_strand(shi, sseg->strand, spoint);
	shade_input_set_strand_texco(shi, sseg->strand, sseg->v[1], spoint);
	
	/* init material vars */
	shade_input_init_material(shi);
	
	/* shade */
	shade_samples_do_AO(ssamp);
	shade_input_do_shade(shi, shr);

	/* apply simplification */
	strand_apply_shaderesult_alpha(shr, spoint->alpha);

	/* include lamphalos for strand, since halo layer was added already */
	if (re->flag & R_LAMPHALO)
		if (shi->layflag & SCE_LAY_HALO)
			renderspothalo(shi, shr->combined, shr->combined[3]);
	
	shi->strand= NULL;
}
Exemplo n.º 2
0
static void bake_shade(void *handle, Object *ob, ShadeInput *shi, int UNUSED(quad), int x, int y, float UNUSED(u), float UNUSED(v), float *tvn, float *ttang)
{
	BakeShade *bs = handle;
	ShadeSample *ssamp = &bs->ssamp;
	ShadeResult shr;
	VlakRen *vlr = shi->vlr;

	shade_input_init_material(shi);

	if (bs->type == RE_BAKE_AO) {
		ambient_occlusion(shi);

		if (R.r.bake_flag & R_BAKE_NORMALIZE) {
			copy_v3_v3(shr.combined, shi->ao);
		}
		else {
			zero_v3(shr.combined);
			environment_lighting_apply(shi, &shr);
		}
	}
	else {
		if (bs->type == RE_BAKE_SHADOW) /* Why do shadows set the color anyhow?, ignore material color for baking */
			shi->r = shi->g = shi->b = 1.0f;

		shade_input_set_shade_texco(shi);
		
		/* only do AO for a full bake (and obviously AO bakes)
		 * AO for light bakes is a leftover and might not be needed */
		if (ELEM3(bs->type, RE_BAKE_ALL, RE_BAKE_AO, RE_BAKE_LIGHT))
			shade_samples_do_AO(ssamp);
		
		if (shi->mat->nodetree && shi->mat->use_nodes) {
			ntreeShaderExecTree(shi->mat->nodetree, shi, &shr);
			shi->mat = vlr->mat;  /* shi->mat is being set in nodetree */
		}
		else
			shade_material_loop(shi, &shr);

		if (bs->type == RE_BAKE_NORMALS) {
			float nor[3];

			copy_v3_v3(nor, shi->vn);

			if (R.r.bake_normal_space == R_BAKE_SPACE_CAMERA) {
				/* pass */
			}
			else if (R.r.bake_normal_space == R_BAKE_SPACE_TANGENT) {
				float mat[3][3], imat[3][3];

				/* bitangent */
				if (tvn && ttang) {
					copy_v3_v3(mat[0], ttang);
					cross_v3_v3v3(mat[1], tvn, ttang);
					mul_v3_fl(mat[1], ttang[3]);
					copy_v3_v3(mat[2], tvn);
				}
				else {
					copy_v3_v3(mat[0], shi->nmaptang);
					cross_v3_v3v3(mat[1], shi->nmapnorm, shi->nmaptang);
					mul_v3_fl(mat[1], shi->nmaptang[3]);
					copy_v3_v3(mat[2], shi->nmapnorm);
				}

				invert_m3_m3(imat, mat);
				mul_m3_v3(imat, nor);
			}
			else if (R.r.bake_normal_space == R_BAKE_SPACE_OBJECT)
				mul_mat3_m4_v3(ob->imat_ren, nor);  /* ob->imat_ren includes viewinv! */
			else if (R.r.bake_normal_space == R_BAKE_SPACE_WORLD)
				mul_mat3_m4_v3(R.viewinv, nor);

			normalize_v3(nor); /* in case object has scaling */

			/* The invert of the red channel is to make
			 * the normal map compliant with the outside world.
			 * It needs to be done because in Blender
			 * the normal used in the renderer points inward. It is generated
			 * this way in calc_vertexnormals(). Should this ever change
			 * this negate must be removed. */
			shr.combined[0] = (-nor[0]) / 2.0f + 0.5f;
			shr.combined[1] = nor[1]    / 2.0f + 0.5f;
			shr.combined[2] = nor[2]    / 2.0f + 0.5f;
		}
		else if (bs->type == RE_BAKE_TEXTURE) {
			copy_v3_v3(shr.combined, &shi->r);
			shr.alpha = shi->alpha;
		}
		else if (bs->type == RE_BAKE_SHADOW) {
			copy_v3_v3(shr.combined, shr.shad);
			shr.alpha = shi->alpha;
		}
		else if (bs->type == RE_BAKE_SPEC_COLOR) {
			copy_v3_v3(shr.combined, &shi->specr);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_SPEC_INTENSITY) {
			copy_v3_fl(shr.combined, shi->spec);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_MIRROR_COLOR) {
			copy_v3_v3(shr.combined, &shi->mirr);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_MIRROR_INTENSITY) {
			copy_v3_fl(shr.combined, shi->ray_mirror);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_ALPHA) {
			copy_v3_fl(shr.combined, shi->alpha);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_EMIT) {
			copy_v3_fl(shr.combined, shi->emit);
			shr.alpha = 1.0f;
		}
		else if (bs->type == RE_BAKE_VERTEX_COLORS) {
			copy_v3_v3(shr.combined, shi->vcol);
			shr.alpha = shi->vcol[3];
		}
	}
	
	if (bs->rect_float && !bs->vcol) {
		float *col = bs->rect_float + 4 * (bs->rectx * y + x);
		copy_v3_v3(col, shr.combined);
		if (bs->type == RE_BAKE_ALL || bs->type == RE_BAKE_TEXTURE || bs->type == RE_BAKE_VERTEX_COLORS) {
			col[3] = shr.alpha;
		}
		else {
			col[3] = 1.0;
		}
	}
	else {
		/* Target is char (LDR). */
		unsigned char col[4];

		if (ELEM(bs->type, RE_BAKE_ALL, RE_BAKE_TEXTURE)) {
			float rgb[3];

			copy_v3_v3(rgb, shr.combined);
			if (R.scene_color_manage) {
				/* Vertex colors have no way to specify color space, so they
				 * default to sRGB. */
				if (!bs->vcol)
					IMB_colormanagement_scene_linear_to_colorspace_v3(rgb, bs->rect_colorspace);
				else
					linearrgb_to_srgb_v3_v3(rgb, rgb);
			}
			rgb_float_to_uchar(col, rgb);
		}
		else {
			rgb_float_to_uchar(col, shr.combined);
		}
		
		if (ELEM3(bs->type, RE_BAKE_ALL, RE_BAKE_TEXTURE, RE_BAKE_VERTEX_COLORS)) {
			col[3] = FTOCHAR(shr.alpha);
		}
		else {
			col[3] = 255;
		}

		if (bs->vcol) {
			/* Vertex color baking. Vcol has no useful alpha channel (it exists
			 * but is used only for vertex painting). */
			bs->vcol->r = col[0];
			bs->vcol->g = col[1];
			bs->vcol->b = col[2];
		}
		else {
			unsigned char *imcol = (unsigned char *)(bs->rect + bs->rectx * y + x);
			copy_v4_v4_char((char *)imcol, (char *)col);
		}

	}
	
	if (bs->rect_mask) {
		bs->rect_mask[bs->rectx * y + x] = FILTER_MASK_USED;
	}

	if (bs->do_update) {
		*bs->do_update = true;
	}
}