Differential D3855 Diff 17628 source/blender/draw/engines/workbench/workbench_volume.c

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source/blender/draw/engines/workbench/workbench_volume.c

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/** \file		/** \file
* \ingroup draw_engine		* \ingroup draw_engine
*/		*/

#include "workbench_private.h"		#include "workbench_private.h"

#include "BKE_object.h"		#include "BKE_object.h"
#include "BKE_smoke.h"		#include "BKE_manta.h"

#include "BLI_rand.h"		#include "BLI_rand.h"
#include "BLI_dynstr.h"		#include "BLI_dynstr.h"

#include "DNA_modifier_types.h"		#include "DNA_modifier_types.h"
#include "DNA_object_force_types.h"		#include "DNA_object_force_types.h"
#include "DNA_smoke_types.h"		#include "DNA_manta_types.h"

#include "GPU_draw.h"		#include "GPU_draw.h"

enum {		enum {
VOLUME_SH_SLICE = 0,		VOLUME_SH_SLICE = 0,
VOLUME_SH_COBA,		VOLUME_SH_COBA,
VOLUME_SH_CUBIC,		VOLUME_SH_CUBIC,
};		};
▲ Show 20 Lines • Show All 72 Lines • ▼ Show 20 Lines	vedata->psl->volume_pass = DRW_pass_create(
"Volumes", DRW_STATE_WRITE_COLOR \| DRW_STATE_BLEND_ALPHA_PREMUL \| DRW_STATE_CULL_FRONT);		"Volumes", DRW_STATE_WRITE_COLOR \| DRW_STATE_BLEND_ALPHA_PREMUL \| DRW_STATE_CULL_FRONT);
}		}

void workbench_volume_cache_populate(WORKBENCH_Data *vedata,		void workbench_volume_cache_populate(WORKBENCH_Data *vedata,
Scene *scene,		Scene *scene,
Object *ob,		Object *ob,
ModifierData *md)		ModifierData *md)
{		{
SmokeModifierData smd = (SmokeModifierData )md;		MantaModifierData mmd = (MantaModifierData )md;
SmokeDomainSettings *sds = smd->domain;		MantaDomainSettings *mds = mmd->domain;
WORKBENCH_PrivateData *wpd = vedata->stl->g_data;		WORKBENCH_PrivateData *wpd = vedata->stl->g_data;
WORKBENCH_EffectInfo *effect_info = vedata->stl->effects;		WORKBENCH_EffectInfo *effect_info = vedata->stl->effects;
DefaultTextureList *dtxl = DRW_viewport_texture_list_get();		DefaultTextureList *dtxl = DRW_viewport_texture_list_get();
DRWShadingGroup *grp = NULL;		DRWShadingGroup *grp = NULL;

/* Don't show smoke before simulation starts, this could be made an option in the future. */		/* Don't try to show liquid domains here */
if (!sds->fluid \|\| CFRA < sds->point_cache[0]->startframe) {		if (!mds->fluid \|\| !(mds->type == FLUID_DOMAIN_TYPE_GAS)) {
return;		return;
}		}

wpd->volumes_do = true;		wpd->volumes_do = true;
const bool show_highres = BKE_smoke_show_highres(scene, sds);		if (mds->use_coba) {
if (sds->use_coba) {		GPU_create_smoke_coba_field(mmd);
GPU_create_smoke_coba_field(smd);
}		}
else if (!sds->wt \|\| !show_highres) {		else if (!(mds->flags & FLUID_DOMAIN_USE_NOISE)) {
GPU_create_smoke(smd, 0);		GPU_create_smoke(mmd, 0);
}		}
else if (sds->wt && show_highres) {		else if (mds->flags & FLUID_DOMAIN_USE_NOISE) {
GPU_create_smoke(smd, 1);		GPU_create_smoke(mmd, 1);
}		}

if ((!sds->use_coba && sds->tex == NULL) \|\| (sds->use_coba && sds->tex_field == NULL)) {		if ((!mds->use_coba && mds->tex == NULL) \|\| (mds->use_coba && mds->tex_field == NULL)) {
return;		return;
}		}

const bool use_slice = (sds->slice_method == MOD_SMOKE_SLICE_AXIS_ALIGNED &&		const bool use_slice = (mds->slice_method == FLUID_DOMAIN_SLICE_AXIS_ALIGNED &&
sds->axis_slice_method == AXIS_SLICE_SINGLE);		mds->axis_slice_method == AXIS_SLICE_SINGLE);
const bool cubic_interp = (sds->interp_method == VOLUME_INTERP_CUBIC);		const bool cubic_interp = (mds->interp_method == VOLUME_INTERP_CUBIC);
GPUShader *sh = volume_shader_get(use_slice, sds->use_coba, cubic_interp);		GPUShader *sh = volume_shader_get(use_slice, mds->use_coba, cubic_interp);

if (use_slice) {		if (use_slice) {
float invviewmat[4][4];		float invviewmat[4][4];
DRW_view_viewmat_get(NULL, invviewmat, true);		DRW_view_viewmat_get(NULL, invviewmat, true);

const int axis = (sds->slice_axis == SLICE_AXIS_AUTO) ?		const int axis = (mds->slice_axis == SLICE_AXIS_AUTO) ?
axis_dominant_v3_single(invviewmat[2]) :		axis_dominant_v3_single(invviewmat[2]) :
sds->slice_axis - 1;		mds->slice_axis - 1;
float dim[3];		float dim[3];
BKE_object_dimensions_get(ob, dim);		BKE_object_dimensions_get(ob, dim);
/* 0.05f to achieve somewhat the same opacity as the full view. */		/* 0.05f to achieve somewhat the same opacity as the full view. */
float step_length = max_ff(1e-16f, dim[axis] * 0.05f);		float step_length = max_ff(1e-16f, dim[axis] * 0.05f);

grp = DRW_shgroup_create(sh, vedata->psl->volume_pass);		grp = DRW_shgroup_create(sh, vedata->psl->volume_pass);
DRW_shgroup_uniform_float_copy(grp, "slicePosition", sds->slice_depth);		DRW_shgroup_uniform_float_copy(grp, "slicePosition", mds->slice_depth);
DRW_shgroup_uniform_int_copy(grp, "sliceAxis", axis);		DRW_shgroup_uniform_int_copy(grp, "sliceAxis", axis);
DRW_shgroup_uniform_float_copy(grp, "stepLength", step_length);		DRW_shgroup_uniform_float_copy(grp, "stepLength", step_length);
DRW_shgroup_state_disable(grp, DRW_STATE_CULL_FRONT);		DRW_shgroup_state_disable(grp, DRW_STATE_CULL_FRONT);
}		}
else {		else {
double noise_ofs;		double noise_ofs;
BLI_halton_1d(3, 0.0, effect_info->jitter_index, &noise_ofs);		BLI_halton_1d(3, 0.0, effect_info->jitter_index, &noise_ofs);
float dim[3], step_length, max_slice;		float dim[3], step_length, max_slice;
float slice_ct[3] = {sds->res[0], sds->res[1], sds->res[2]};		float slice_ct[3] = {mds->res[0], mds->res[1], mds->res[2]};
mul_v3_fl(slice_ct, max_ff(0.001f, sds->slice_per_voxel));		mul_v3_fl(slice_ct, max_ff(0.001f, mds->slice_per_voxel));
max_slice = max_fff(slice_ct[0], slice_ct[1], slice_ct[2]);		max_slice = max_fff(slice_ct[0], slice_ct[1], slice_ct[2]);
BKE_object_dimensions_get(ob, dim);		BKE_object_dimensions_get(ob, dim);
invert_v3(slice_ct);		invert_v3(slice_ct);
mul_v3_v3(dim, slice_ct);		mul_v3_v3(dim, slice_ct);
step_length = len_v3(dim);		step_length = len_v3(dim);

grp = DRW_shgroup_create(sh, vedata->psl->volume_pass);		grp = DRW_shgroup_create(sh, vedata->psl->volume_pass);
DRW_shgroup_uniform_vec4(grp, "viewvecs[0]", (float *)wpd->viewvecs, 3);		DRW_shgroup_uniform_vec4(grp, "viewvecs[0]", (float *)wpd->viewvecs, 3);
DRW_shgroup_uniform_int_copy(grp, "samplesLen", max_slice);		DRW_shgroup_uniform_int_copy(grp, "samplesLen", max_slice);
DRW_shgroup_uniform_float_copy(grp, "stepLength", step_length);		DRW_shgroup_uniform_float_copy(grp, "stepLength", step_length);
DRW_shgroup_uniform_float_copy(grp, "noiseOfs", noise_ofs);		DRW_shgroup_uniform_float_copy(grp, "noiseOfs", noise_ofs);
DRW_shgroup_state_enable(grp, DRW_STATE_CULL_FRONT);		DRW_shgroup_state_enable(grp, DRW_STATE_CULL_FRONT);
}		}

if (sds->use_coba) {		if (mds->use_coba) {
DRW_shgroup_uniform_texture(grp, "densityTexture", sds->tex_field);		DRW_shgroup_uniform_texture(grp, "densityTexture", mds->tex_field);
DRW_shgroup_uniform_texture(grp, "transferTexture", sds->tex_coba);		DRW_shgroup_uniform_texture(grp, "transferTexture", mds->tex_coba);
}		}
else {		else {
static float white[3] = {1.0f, 1.0f, 1.0f};		static float white[3] = {1.0f, 1.0f, 1.0f};
bool use_constant_color = ((sds->active_fields & SM_ACTIVE_COLORS) == 0 &&		bool use_constant_color = ((mds->active_fields & FLUID_DOMAIN_ACTIVE_COLORS) == 0 &&
(sds->active_fields & SM_ACTIVE_COLOR_SET) != 0);		(mds->active_fields & FLUID_DOMAIN_ACTIVE_COLOR_SET) != 0);
DRW_shgroup_uniform_texture(grp, "densityTexture", sds->tex);		DRW_shgroup_uniform_texture(grp, "densityTexture", mds->tex);
DRW_shgroup_uniform_texture(grp, "shadowTexture", sds->tex_shadow);		DRW_shgroup_uniform_texture(grp, "shadowTexture", mds->tex_shadow);
DRW_shgroup_uniform_texture(		DRW_shgroup_uniform_texture(
grp, "flameTexture", (sds->tex_flame) ? sds->tex_flame : e_data.dummy_tex);		grp, "flameTexture", (mds->tex_flame) ? mds->tex_flame : e_data.dummy_tex);
DRW_shgroup_uniform_texture(		DRW_shgroup_uniform_texture(
grp, "flameColorTexture", (sds->tex_flame) ? sds->tex_flame_coba : e_data.dummy_coba_tex);		grp, "flameColorTexture", (mds->tex_flame) ? mds->tex_flame_coba : e_data.dummy_coba_tex);
DRW_shgroup_uniform_vec3(		DRW_shgroup_uniform_vec3(
grp, "activeColor", (use_constant_color) ? sds->active_color : white, 1);		grp, "activeColor", (use_constant_color) ? mds->active_color : white, 1);
}		}
DRW_shgroup_uniform_texture_ref(grp, "depthBuffer", &dtxl->depth);		DRW_shgroup_uniform_texture_ref(grp, "depthBuffer", &dtxl->depth);
DRW_shgroup_uniform_float_copy(grp, "densityScale", 10.0f * sds->display_thickness);		DRW_shgroup_uniform_float_copy(grp, "densityScale", 10.0f * mds->display_thickness);

if (use_slice) {		if (use_slice) {
DRW_shgroup_call(grp, DRW_cache_quad_get(), ob);		DRW_shgroup_call(grp, DRW_cache_quad_get(), ob);
}		}
else {		else {
DRW_shgroup_call(grp, DRW_cache_cube_get(), ob);		DRW_shgroup_call(grp, DRW_cache_cube_get(), ob);
}		}

BLI_addtail(&wpd->smoke_domains, BLI_genericNodeN(smd));		BLI_addtail(&wpd->smoke_domains, BLI_genericNodeN(mmd));
}		}

void workbench_volume_smoke_textures_free(WORKBENCH_PrivateData *wpd)		void workbench_volume_smoke_textures_free(WORKBENCH_PrivateData *wpd)
{		{
/* Free Smoke Textures after rendering */		/* Free Smoke Textures after rendering */
/* XXX This is a waste of processing and GPU bandwidth if nothing		/* XXX This is a waste of processing and GPU bandwidth if nothing
* is updated. But the problem is since Textures are stored in the		* is updated. But the problem is since Textures are stored in the
* modifier we don't want them to take precious VRAM if the		* modifier we don't want them to take precious VRAM if the
* modifier is not used for display. We should share them for		* modifier is not used for display. We should share them for
* all viewport in a redraw at least. */		* all viewport in a redraw at least. */
for (LinkData *link = wpd->smoke_domains.first; link; link = link->next) {		for (LinkData *link = wpd->smoke_domains.first; link; link = link->next) {
SmokeModifierData smd = (SmokeModifierData )link->data;		MantaModifierData mmd = (MantaModifierData )link->data;
GPU_free_smoke(smd);		GPU_free_smoke(mmd);
}		}
BLI_freelistN(&wpd->smoke_domains);		BLI_freelistN(&wpd->smoke_domains);
}		}