diff options
author | Campbell Barton <ideasman42@gmail.com> | 2019-12-17 03:11:15 +0300 |
---|---|---|
committer | Campbell Barton <ideasman42@gmail.com> | 2019-12-17 03:35:26 +0300 |
commit | 7f00b3a7113f56ab3f18468d3a6058697d09571a (patch) | |
tree | 78a4b58d85b43fcfbe595620af9089bbed440926 /source/blender/gpu | |
parent | 1ef6be368683b299cc65ee4c0b79ccbd108d2836 (diff) |
Cleanup: split smoke drawing out into it's own file
gpu_draw.c had generic sounding utility functions which were specific
to smoke drawing.
Split into it's own file so the functionality is clearly separated.
Diffstat (limited to 'source/blender/gpu')
-rw-r--r-- | source/blender/gpu/CMakeLists.txt | 1 | ||||
-rw-r--r-- | source/blender/gpu/GPU_draw.h | 2 | ||||
-rw-r--r-- | source/blender/gpu/intern/gpu_draw.c | 382 | ||||
-rw-r--r-- | source/blender/gpu/intern/gpu_draw_smoke.c | 416 |
4 files changed, 421 insertions, 380 deletions
diff --git a/source/blender/gpu/CMakeLists.txt b/source/blender/gpu/CMakeLists.txt index 7b0845df217..8daeda67c80 100644 --- a/source/blender/gpu/CMakeLists.txt +++ b/source/blender/gpu/CMakeLists.txt @@ -61,6 +61,7 @@ set(SRC intern/gpu_context.cpp intern/gpu_debug.c intern/gpu_draw.c + intern/gpu_draw_smoke.c intern/gpu_element.c intern/gpu_extensions.c intern/gpu_framebuffer.c diff --git a/source/blender/gpu/GPU_draw.h b/source/blender/gpu/GPU_draw.h index 00c8ce2353d..f89a76cf49c 100644 --- a/source/blender/gpu/GPU_draw.h +++ b/source/blender/gpu/GPU_draw.h @@ -83,7 +83,7 @@ void GPU_free_images(struct Main *bmain); void GPU_free_images_anim(struct Main *bmain); void GPU_free_images_old(struct Main *bmain); -/* smoke drawing functions */ +/* gpu_draw_smoke.c */ void GPU_free_smoke(struct FluidModifierData *mmd); void GPU_free_smoke_velocity(struct FluidModifierData *mmd); void GPU_create_smoke(struct FluidModifierData *mmd, int highres); diff --git a/source/blender/gpu/intern/gpu_draw.c b/source/blender/gpu/intern/gpu_draw.c index dca52355f10..95738bb1a95 100644 --- a/source/blender/gpu/intern/gpu_draw.c +++ b/source/blender/gpu/intern/gpu_draw.c @@ -36,17 +36,9 @@ #include "BLI_threads.h" #include "BLI_utildefines.h" -#include "DNA_light_types.h" -#include "DNA_material_types.h" -#include "DNA_mesh_types.h" -#include "DNA_meshdata_types.h" -#include "DNA_modifier_types.h" -#include "DNA_node_types.h" -#include "DNA_object_types.h" -#include "DNA_scene_types.h" -#include "DNA_fluid_types.h" -#include "DNA_view3d_types.h" -#include "DNA_particle_types.h" +#include "DNA_image_types.h" +#include "DNA_movieclip_types.h" +#include "DNA_userdef_types.h" #include "MEM_guardedalloc.h" @@ -54,14 +46,10 @@ #include "IMB_imbuf.h" #include "IMB_imbuf_types.h" -#include "BKE_colorband.h" #include "BKE_global.h" #include "BKE_image.h" #include "BKE_main.h" -#include "BKE_material.h" #include "BKE_movieclip.h" -#include "BKE_node.h" -#include "BKE_scene.h" #include "GPU_draw.h" #include "GPU_extensions.h" @@ -71,8 +59,6 @@ #include "PIL_time.h" -#include "manta_fluid_API.h" - static void gpu_free_image_immediate(Image *ima); //* Checking powers of two for images since OpenGL ES requires it */ @@ -938,368 +924,6 @@ void GPU_paint_update_image(Image *ima, ImageUser *iuser, int x, int y, int w, i BKE_image_release_ibuf(ima, ibuf, NULL); } -/* *************************** Transfer functions *************************** */ - -#ifdef WITH_FLUID - -enum { - TFUNC_FLAME_SPECTRUM = 0, - TFUNC_COLOR_RAMP = 1, -}; - -# define TFUNC_WIDTH 256 - -static void create_flame_spectrum_texture(float *data) -{ -# define FIRE_THRESH 7 -# define MAX_FIRE_ALPHA 0.06f -# define FULL_ON_FIRE 100 - - float *spec_pixels = MEM_mallocN(TFUNC_WIDTH * 4 * 16 * 16 * sizeof(float), "spec_pixels"); - - blackbody_temperature_to_rgb_table(data, TFUNC_WIDTH, 1500, 3000); - - for (int i = 0; i < 16; i++) { - for (int j = 0; j < 16; j++) { - for (int k = 0; k < TFUNC_WIDTH; k++) { - int index = (j * TFUNC_WIDTH * 16 + i * TFUNC_WIDTH + k) * 4; - if (k >= FIRE_THRESH) { - spec_pixels[index] = (data[k * 4]); - spec_pixels[index + 1] = (data[k * 4 + 1]); - spec_pixels[index + 2] = (data[k * 4 + 2]); - spec_pixels[index + 3] = MAX_FIRE_ALPHA * - ((k > FULL_ON_FIRE) ? - 1.0f : - (k - FIRE_THRESH) / ((float)FULL_ON_FIRE - FIRE_THRESH)); - } - else { - zero_v4(&spec_pixels[index]); - } - } - } - } - - memcpy(data, spec_pixels, sizeof(float) * 4 * TFUNC_WIDTH); - - MEM_freeN(spec_pixels); - -# undef FIRE_THRESH -# undef MAX_FIRE_ALPHA -# undef FULL_ON_FIRE -} - -static void create_color_ramp(const ColorBand *coba, float *data) -{ - for (int i = 0; i < TFUNC_WIDTH; i++) { - BKE_colorband_evaluate(coba, (float)i / TFUNC_WIDTH, &data[i * 4]); - } -} - -static GPUTexture *create_transfer_function(int type, const ColorBand *coba) -{ - float *data = MEM_mallocN(sizeof(float) * 4 * TFUNC_WIDTH, __func__); - - switch (type) { - case TFUNC_FLAME_SPECTRUM: - create_flame_spectrum_texture(data); - break; - case TFUNC_COLOR_RAMP: - create_color_ramp(coba, data); - break; - } - - GPUTexture *tex = GPU_texture_create_1d(TFUNC_WIDTH, GPU_RGBA8, data, NULL); - - MEM_freeN(data); - - return tex; -} - -static void swizzle_texture_channel_rrrr(GPUTexture *tex) -{ - GPU_texture_bind(tex, 0); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_R, GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_G, GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_B, GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_A, GL_RED); - GPU_texture_unbind(tex); -} - -static GPUTexture *create_field_texture(FluidDomainSettings *mds) -{ - float *field = NULL; - - switch (mds->coba_field) { - case FLUID_DOMAIN_FIELD_DENSITY: - field = manta_smoke_get_density(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_HEAT: - field = manta_smoke_get_heat(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_FUEL: - field = manta_smoke_get_fuel(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_REACT: - field = manta_smoke_get_react(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_FLAME: - field = manta_smoke_get_flame(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_VELOCITY_X: - field = manta_get_velocity_x(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_VELOCITY_Y: - field = manta_get_velocity_y(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_VELOCITY_Z: - field = manta_get_velocity_z(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_COLOR_R: - field = manta_smoke_get_color_r(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_COLOR_G: - field = manta_smoke_get_color_g(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_COLOR_B: - field = manta_smoke_get_color_b(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_FORCE_X: - field = manta_get_force_x(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_FORCE_Y: - field = manta_get_force_y(mds->fluid); - break; - case FLUID_DOMAIN_FIELD_FORCE_Z: - field = manta_get_force_z(mds->fluid); - break; - default: - return NULL; - } - - GPUTexture *tex = GPU_texture_create_nD( - mds->res[0], mds->res[1], mds->res[2], 3, field, GPU_R8, GPU_DATA_FLOAT, 0, true, NULL); - - swizzle_texture_channel_rrrr(tex); - return tex; -} - -static GPUTexture *create_density_texture(FluidDomainSettings *mds, int highres) -{ - float *data = NULL, *source; - int cell_count = (highres) ? manta_smoke_turbulence_get_cells(mds->fluid) : mds->total_cells; - const bool has_color = (highres) ? manta_smoke_turbulence_has_colors(mds->fluid) : - manta_smoke_has_colors(mds->fluid); - int *dim = (highres) ? mds->res_noise : mds->res; - eGPUTextureFormat format = (has_color) ? GPU_RGBA8 : GPU_R8; - - if (has_color) { - data = MEM_callocN(sizeof(float) * cell_count * 4, "smokeColorTexture"); - } - - if (highres) { - if (has_color) { - manta_smoke_turbulence_get_rgba(mds->fluid, data, 0); - } - else { - source = manta_smoke_turbulence_get_density(mds->fluid); - } - } - else { - if (has_color) { - manta_smoke_get_rgba(mds->fluid, data, 0); - } - else { - source = manta_smoke_get_density(mds->fluid); - } - } - - GPUTexture *tex = GPU_texture_create_nD(dim[0], - dim[1], - dim[2], - 3, - (has_color) ? data : source, - format, - GPU_DATA_FLOAT, - 0, - true, - NULL); - if (data) { - MEM_freeN(data); - } - - if (format == GPU_R8) { - /* Swizzle the RGBA components to read the Red channel so - * that the shader stay the same for colored and non color - * density textures. */ - swizzle_texture_channel_rrrr(tex); - } - return tex; -} - -static GPUTexture *create_flame_texture(FluidDomainSettings *mds, int highres) -{ - float *source = NULL; - const bool has_fuel = (highres) ? manta_smoke_turbulence_has_fuel(mds->fluid) : - manta_smoke_has_fuel(mds->fluid); - int *dim = (highres) ? mds->res_noise : mds->res; - - if (!has_fuel) { - return NULL; - } - - if (highres) { - source = manta_smoke_turbulence_get_flame(mds->fluid); - } - else { - source = manta_smoke_get_flame(mds->fluid); - } - - GPUTexture *tex = GPU_texture_create_nD( - dim[0], dim[1], dim[2], 3, source, GPU_R8, GPU_DATA_FLOAT, 0, true, NULL); - - swizzle_texture_channel_rrrr(tex); - - return tex; -} - -#endif /* WITH_FLUID */ - -void GPU_free_smoke(FluidModifierData *mmd) -{ - if (mmd->type & MOD_FLUID_TYPE_DOMAIN && mmd->domain) { - if (mmd->domain->tex) { - GPU_texture_free(mmd->domain->tex); - } - mmd->domain->tex = NULL; - - if (mmd->domain->tex_shadow) { - GPU_texture_free(mmd->domain->tex_shadow); - } - mmd->domain->tex_shadow = NULL; - - if (mmd->domain->tex_flame) { - GPU_texture_free(mmd->domain->tex_flame); - } - mmd->domain->tex_flame = NULL; - - if (mmd->domain->tex_flame_coba) { - GPU_texture_free(mmd->domain->tex_flame_coba); - } - mmd->domain->tex_flame_coba = NULL; - - if (mmd->domain->tex_coba) { - GPU_texture_free(mmd->domain->tex_coba); - } - mmd->domain->tex_coba = NULL; - - if (mmd->domain->tex_field) { - GPU_texture_free(mmd->domain->tex_field); - } - mmd->domain->tex_field = NULL; - } -} - -void GPU_create_smoke_coba_field(FluidModifierData *mmd) -{ -#ifndef WITH_FLUID - UNUSED_VARS(mmd); -#else - if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { - FluidDomainSettings *mds = mmd->domain; - - if (!mds->tex_field) { - mds->tex_field = create_field_texture(mds); - } - if (!mds->tex_coba) { - mds->tex_coba = create_transfer_function(TFUNC_COLOR_RAMP, mds->coba); - } - } -#endif -} - -void GPU_create_smoke(FluidModifierData *mmd, int highres) -{ -#ifndef WITH_FLUID - UNUSED_VARS(mmd, highres); -#else - if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { - FluidDomainSettings *mds = mmd->domain; - - if (!mds->tex) { - mds->tex = create_density_texture(mds, highres); - } - if (!mds->tex_flame) { - mds->tex_flame = create_flame_texture(mds, highres); - } - if (!mds->tex_flame_coba && mds->tex_flame) { - mds->tex_flame_coba = create_transfer_function(TFUNC_FLAME_SPECTRUM, NULL); - } - if (!mds->tex_shadow) { - mds->tex_shadow = GPU_texture_create_nD(mds->res[0], - mds->res[1], - mds->res[2], - 3, - manta_smoke_get_shadow(mds->fluid), - GPU_R8, - GPU_DATA_FLOAT, - 0, - true, - NULL); - } - } -#endif /* WITH_FLUID */ -} - -void GPU_create_smoke_velocity(FluidModifierData *mmd) -{ -#ifndef WITH_FLUID - UNUSED_VARS(mmd); -#else - if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { - FluidDomainSettings *mds = mmd->domain; - - const float *vel_x = manta_get_velocity_x(mds->fluid); - const float *vel_y = manta_get_velocity_y(mds->fluid); - const float *vel_z = manta_get_velocity_z(mds->fluid); - - if (ELEM(NULL, vel_x, vel_y, vel_z)) { - return; - } - - if (!mds->tex_velocity_x) { - mds->tex_velocity_x = GPU_texture_create_3d( - mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_x, NULL); - mds->tex_velocity_y = GPU_texture_create_3d( - mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_y, NULL); - mds->tex_velocity_z = GPU_texture_create_3d( - mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_z, NULL); - } - } -#endif /* WITH_FLUID */ -} - -/* TODO Unify with the other GPU_free_smoke. */ -void GPU_free_smoke_velocity(FluidModifierData *mmd) -{ - if (mmd->type & MOD_FLUID_TYPE_DOMAIN && mmd->domain) { - if (mmd->domain->tex_velocity_x) { - GPU_texture_free(mmd->domain->tex_velocity_x); - } - - if (mmd->domain->tex_velocity_y) { - GPU_texture_free(mmd->domain->tex_velocity_y); - } - - if (mmd->domain->tex_velocity_z) { - GPU_texture_free(mmd->domain->tex_velocity_z); - } - - mmd->domain->tex_velocity_x = NULL; - mmd->domain->tex_velocity_y = NULL; - mmd->domain->tex_velocity_z = NULL; - } -} - static LinkNode *image_free_queue = NULL; static ThreadMutex img_queue_mutex = BLI_MUTEX_INITIALIZER; diff --git a/source/blender/gpu/intern/gpu_draw_smoke.c b/source/blender/gpu/intern/gpu_draw_smoke.c new file mode 100644 index 00000000000..5cca472148a --- /dev/null +++ b/source/blender/gpu/intern/gpu_draw_smoke.c @@ -0,0 +1,416 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2005 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup gpu + * + * GPU fluid drawing functions. + */ + +#include <string.h> + +#include "BLI_math.h" +#include "BLI_utildefines.h" + +#include "DNA_modifier_types.h" +#include "DNA_fluid_types.h" + +#include "MEM_guardedalloc.h" + +#include "BKE_colorband.h" + +#include "GPU_draw.h" +#include "GPU_glew.h" +#include "GPU_texture.h" + +#ifdef WITH_FLUID +# include "manta_fluid_API.h" +#endif + +/* -------------------------------------------------------------------- */ +/** \name Private API + * \{ */ + +#ifdef WITH_FLUID + +enum { + TFUNC_FLAME_SPECTRUM = 0, + TFUNC_COLOR_RAMP = 1, +}; + +# define TFUNC_WIDTH 256 + +static void create_flame_spectrum_texture(float *data) +{ +# define FIRE_THRESH 7 +# define MAX_FIRE_ALPHA 0.06f +# define FULL_ON_FIRE 100 + + float *spec_pixels = MEM_mallocN(TFUNC_WIDTH * 4 * 16 * 16 * sizeof(float), "spec_pixels"); + + blackbody_temperature_to_rgb_table(data, TFUNC_WIDTH, 1500, 3000); + + for (int i = 0; i < 16; i++) { + for (int j = 0; j < 16; j++) { + for (int k = 0; k < TFUNC_WIDTH; k++) { + int index = (j * TFUNC_WIDTH * 16 + i * TFUNC_WIDTH + k) * 4; + if (k >= FIRE_THRESH) { + spec_pixels[index] = (data[k * 4]); + spec_pixels[index + 1] = (data[k * 4 + 1]); + spec_pixels[index + 2] = (data[k * 4 + 2]); + spec_pixels[index + 3] = MAX_FIRE_ALPHA * + ((k > FULL_ON_FIRE) ? + 1.0f : + (k - FIRE_THRESH) / ((float)FULL_ON_FIRE - FIRE_THRESH)); + } + else { + zero_v4(&spec_pixels[index]); + } + } + } + } + + memcpy(data, spec_pixels, sizeof(float) * 4 * TFUNC_WIDTH); + + MEM_freeN(spec_pixels); + +# undef FIRE_THRESH +# undef MAX_FIRE_ALPHA +# undef FULL_ON_FIRE +} + +static void create_color_ramp(const struct ColorBand *coba, float *data) +{ + for (int i = 0; i < TFUNC_WIDTH; i++) { + BKE_colorband_evaluate(coba, (float)i / TFUNC_WIDTH, &data[i * 4]); + } +} + +static GPUTexture *create_transfer_function(int type, const struct ColorBand *coba) +{ + float *data = MEM_mallocN(sizeof(float) * 4 * TFUNC_WIDTH, __func__); + + switch (type) { + case TFUNC_FLAME_SPECTRUM: + create_flame_spectrum_texture(data); + break; + case TFUNC_COLOR_RAMP: + create_color_ramp(coba, data); + break; + } + + GPUTexture *tex = GPU_texture_create_1d(TFUNC_WIDTH, GPU_RGBA8, data, NULL); + + MEM_freeN(data); + + return tex; +} + +static void swizzle_texture_channel_rrrr(GPUTexture *tex) +{ + GPU_texture_bind(tex, 0); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_R, GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_G, GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_B, GL_RED); + glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_A, GL_RED); + GPU_texture_unbind(tex); +} + +static GPUTexture *create_field_texture(FluidDomainSettings *mds) +{ + float *field = NULL; + + switch (mds->coba_field) { + case FLUID_DOMAIN_FIELD_DENSITY: + field = manta_smoke_get_density(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_HEAT: + field = manta_smoke_get_heat(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_FUEL: + field = manta_smoke_get_fuel(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_REACT: + field = manta_smoke_get_react(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_FLAME: + field = manta_smoke_get_flame(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_VELOCITY_X: + field = manta_get_velocity_x(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_VELOCITY_Y: + field = manta_get_velocity_y(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_VELOCITY_Z: + field = manta_get_velocity_z(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_COLOR_R: + field = manta_smoke_get_color_r(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_COLOR_G: + field = manta_smoke_get_color_g(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_COLOR_B: + field = manta_smoke_get_color_b(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_FORCE_X: + field = manta_get_force_x(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_FORCE_Y: + field = manta_get_force_y(mds->fluid); + break; + case FLUID_DOMAIN_FIELD_FORCE_Z: + field = manta_get_force_z(mds->fluid); + break; + default: + return NULL; + } + + GPUTexture *tex = GPU_texture_create_nD( + mds->res[0], mds->res[1], mds->res[2], 3, field, GPU_R8, GPU_DATA_FLOAT, 0, true, NULL); + + swizzle_texture_channel_rrrr(tex); + return tex; +} + +static GPUTexture *create_density_texture(FluidDomainSettings *mds, int highres) +{ + float *data = NULL, *source; + int cell_count = (highres) ? manta_smoke_turbulence_get_cells(mds->fluid) : mds->total_cells; + const bool has_color = (highres) ? manta_smoke_turbulence_has_colors(mds->fluid) : + manta_smoke_has_colors(mds->fluid); + int *dim = (highres) ? mds->res_noise : mds->res; + eGPUTextureFormat format = (has_color) ? GPU_RGBA8 : GPU_R8; + + if (has_color) { + data = MEM_callocN(sizeof(float) * cell_count * 4, "smokeColorTexture"); + } + + if (highres) { + if (has_color) { + manta_smoke_turbulence_get_rgba(mds->fluid, data, 0); + } + else { + source = manta_smoke_turbulence_get_density(mds->fluid); + } + } + else { + if (has_color) { + manta_smoke_get_rgba(mds->fluid, data, 0); + } + else { + source = manta_smoke_get_density(mds->fluid); + } + } + + GPUTexture *tex = GPU_texture_create_nD(dim[0], + dim[1], + dim[2], + 3, + (has_color) ? data : source, + format, + GPU_DATA_FLOAT, + 0, + true, + NULL); + if (data) { + MEM_freeN(data); + } + + if (format == GPU_R8) { + /* Swizzle the RGBA components to read the Red channel so + * that the shader stay the same for colored and non color + * density textures. */ + swizzle_texture_channel_rrrr(tex); + } + return tex; +} + +static GPUTexture *create_flame_texture(FluidDomainSettings *mds, int highres) +{ + float *source = NULL; + const bool has_fuel = (highres) ? manta_smoke_turbulence_has_fuel(mds->fluid) : + manta_smoke_has_fuel(mds->fluid); + int *dim = (highres) ? mds->res_noise : mds->res; + + if (!has_fuel) { + return NULL; + } + + if (highres) { + source = manta_smoke_turbulence_get_flame(mds->fluid); + } + else { + source = manta_smoke_get_flame(mds->fluid); + } + + GPUTexture *tex = GPU_texture_create_nD( + dim[0], dim[1], dim[2], 3, source, GPU_R8, GPU_DATA_FLOAT, 0, true, NULL); + + swizzle_texture_channel_rrrr(tex); + + return tex; +} + +#endif /* WITH_FLUID */ + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Public API + * \{ */ + +void GPU_free_smoke(FluidModifierData *mmd) +{ + if (mmd->type & MOD_FLUID_TYPE_DOMAIN && mmd->domain) { + if (mmd->domain->tex) { + GPU_texture_free(mmd->domain->tex); + } + mmd->domain->tex = NULL; + + if (mmd->domain->tex_shadow) { + GPU_texture_free(mmd->domain->tex_shadow); + } + mmd->domain->tex_shadow = NULL; + + if (mmd->domain->tex_flame) { + GPU_texture_free(mmd->domain->tex_flame); + } + mmd->domain->tex_flame = NULL; + + if (mmd->domain->tex_flame_coba) { + GPU_texture_free(mmd->domain->tex_flame_coba); + } + mmd->domain->tex_flame_coba = NULL; + + if (mmd->domain->tex_coba) { + GPU_texture_free(mmd->domain->tex_coba); + } + mmd->domain->tex_coba = NULL; + + if (mmd->domain->tex_field) { + GPU_texture_free(mmd->domain->tex_field); + } + mmd->domain->tex_field = NULL; + } +} + +void GPU_create_smoke_coba_field(FluidModifierData *mmd) +{ +#ifndef WITH_FLUID + UNUSED_VARS(mmd); +#else + if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { + FluidDomainSettings *mds = mmd->domain; + + if (!mds->tex_field) { + mds->tex_field = create_field_texture(mds); + } + if (!mds->tex_coba) { + mds->tex_coba = create_transfer_function(TFUNC_COLOR_RAMP, mds->coba); + } + } +#endif +} + +void GPU_create_smoke(FluidModifierData *mmd, int highres) +{ +#ifndef WITH_FLUID + UNUSED_VARS(mmd, highres); +#else + if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { + FluidDomainSettings *mds = mmd->domain; + + if (!mds->tex) { + mds->tex = create_density_texture(mds, highres); + } + if (!mds->tex_flame) { + mds->tex_flame = create_flame_texture(mds, highres); + } + if (!mds->tex_flame_coba && mds->tex_flame) { + mds->tex_flame_coba = create_transfer_function(TFUNC_FLAME_SPECTRUM, NULL); + } + if (!mds->tex_shadow) { + mds->tex_shadow = GPU_texture_create_nD(mds->res[0], + mds->res[1], + mds->res[2], + 3, + manta_smoke_get_shadow(mds->fluid), + GPU_R8, + GPU_DATA_FLOAT, + 0, + true, + NULL); + } + } +#endif /* WITH_FLUID */ +} + +void GPU_create_smoke_velocity(FluidModifierData *mmd) +{ +#ifndef WITH_FLUID + UNUSED_VARS(mmd); +#else + if (mmd->type & MOD_FLUID_TYPE_DOMAIN) { + FluidDomainSettings *mds = mmd->domain; + + const float *vel_x = manta_get_velocity_x(mds->fluid); + const float *vel_y = manta_get_velocity_y(mds->fluid); + const float *vel_z = manta_get_velocity_z(mds->fluid); + + if (ELEM(NULL, vel_x, vel_y, vel_z)) { + return; + } + + if (!mds->tex_velocity_x) { + mds->tex_velocity_x = GPU_texture_create_3d( + mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_x, NULL); + mds->tex_velocity_y = GPU_texture_create_3d( + mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_y, NULL); + mds->tex_velocity_z = GPU_texture_create_3d( + mds->res[0], mds->res[1], mds->res[2], GPU_R16F, vel_z, NULL); + } + } +#endif /* WITH_FLUID */ +} + +/* TODO Unify with the other GPU_free_smoke. */ +void GPU_free_smoke_velocity(FluidModifierData *mmd) +{ + if (mmd->type & MOD_FLUID_TYPE_DOMAIN && mmd->domain) { + if (mmd->domain->tex_velocity_x) { + GPU_texture_free(mmd->domain->tex_velocity_x); + } + + if (mmd->domain->tex_velocity_y) { + GPU_texture_free(mmd->domain->tex_velocity_y); + } + + if (mmd->domain->tex_velocity_z) { + GPU_texture_free(mmd->domain->tex_velocity_z); + } + + mmd->domain->tex_velocity_x = NULL; + mmd->domain->tex_velocity_y = NULL; + mmd->domain->tex_velocity_z = NULL; + } +} + +/** \} */ |