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Eevee: Add new clipping UBO. 

This fixes problems with the planar reflections.
This commit is contained in:
Clément Foucault 2018-03-10 00:02:01 +01:00
parent 82957cfec8
commit 4f55ee5a3c
8 changed files with 36 additions and 6 deletions
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1
source/blender/draw/engines/eevee/eevee_data.c
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@ -56,6 +56,7 @@ static void eevee_view_layer_data_free(void *storage)
DRW_UBO_FREE_SAFE(sldata->grid_ubo);
DRW_UBO_FREE_SAFE(sldata->planar_ubo);
DRW_UBO_FREE_SAFE(sldata->common_ubo);
DRW_UBO_FREE_SAFE(sldata->clip_ubo);
DRW_FRAMEBUFFER_FREE_SAFE(sldata->probe_fb);
DRW_FRAMEBUFFER_FREE_SAFE(sldata->probe_filter_fb);
DRW_TEXTURE_FREE_SAFE(sldata->probe_rt);

3
source/blender/draw/engines/eevee/eevee_engine.c
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@ -78,6 +78,9 @@ static void eevee_engine_init(void *ved)
if (sldata->common_ubo == NULL) {
sldata->common_ubo = DRW_uniformbuffer_create(sizeof(sldata->common_data), &sldata->common_data);
}
if (sldata->clip_ubo == NULL) {
sldata->clip_ubo = DRW_uniformbuffer_create(sizeof(sldata->clip_data), &sldata->clip_data);
}
/* EEVEE_effects_init needs to go first for TAA */
EEVEE_effects_init(sldata, vedata, camera);

4
source/blender/draw/engines/eevee/eevee_lightprobes.c
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@ -1317,7 +1317,9 @@ static void render_scene_to_planar(
/* Since we are rendering with an inverted view matrix, we need
* to invert the facing for backface culling to be the same. */
DRW_state_invert_facing();
/* Set clipping plan */
copy_v4_v4(sldata->clip_data.clip_planes[0], ped->planer_eq_offset);
DRW_uniformbuffer_update(sldata->clip_ubo, &sldata->clip_data);
DRW_state_clip_planes_count_set(1);
/* Attach depth here since it's a DRW_TEX_TEMP */

7
source/blender/draw/engines/eevee/eevee_materials.c
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@ -365,6 +365,7 @@ static void add_standard_uniforms(
DRW_shgroup_uniform_block(shgrp, "light_block", sldata->light_ubo);
DRW_shgroup_uniform_block(shgrp, "shadow_block", sldata->shadow_ubo);
DRW_shgroup_uniform_block(shgrp, "common_block", sldata->common_ubo);
DRW_shgroup_uniform_block(shgrp, "clip_block", sldata->clip_ubo);
/* TODO if glossy or diffuse bsdf */
if (true) {
@ -934,10 +935,12 @@ void EEVEE_materials_cache_init(EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata)
state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_CLIP_PLANES | DRW_STATE_WIRE;
psl->depth_pass_clip = DRW_pass_create("Depth Pass Clip", state);
stl->g_data->depth_shgrp_clip = DRW_shgroup_create(e_data.default_prepass_clip_sh, psl->depth_pass_clip);
DRW_shgroup_uniform_block(stl->g_data->depth_shgrp_clip, "clip_block", sldata->clip_ubo);
state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_CLIP_PLANES | DRW_STATE_CULL_BACK;
psl->depth_pass_clip_cull = DRW_pass_create("Depth Pass Cull Clip", state);
stl->g_data->depth_shgrp_clip_cull = DRW_shgroup_create(e_data.default_prepass_clip_sh, psl->depth_pass_clip_cull);
DRW_shgroup_uniform_block(stl->g_data->depth_shgrp_clip_cull, "clip_block", sldata->clip_ubo);
}
{
@ -957,10 +960,12 @@ void EEVEE_materials_cache_init(EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata)
state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_CLIP_PLANES | DRW_STATE_WIRE;
psl->refract_depth_pass_clip = DRW_pass_create("Refract Depth Pass Clip", state);
stl->g_data->refract_depth_shgrp_clip = DRW_shgroup_create(e_data.default_prepass_clip_sh, psl->refract_depth_pass_clip);
DRW_shgroup_uniform_block(stl->g_data->refract_depth_shgrp_clip, "clip_block", sldata->clip_ubo);
state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_CLIP_PLANES | DRW_STATE_CULL_BACK;
psl->refract_depth_pass_clip_cull = DRW_pass_create("Refract Depth Pass Cull Clip", state);
stl->g_data->refract_depth_shgrp_clip_cull = DRW_shgroup_create(e_data.default_prepass_clip_sh, psl->refract_depth_pass_clip_cull);
DRW_shgroup_uniform_block(stl->g_data->refract_depth_shgrp_clip_cull, "clip_block", sldata->clip_ubo);
}
{
@ -1083,6 +1088,7 @@ static void material_opaque(
if (*shgrp_depth != NULL) {
add_standard_uniforms(*shgrp_depth, sldata, vedata, NULL, NULL, false, false);
add_standard_uniforms(*shgrp_depth_clip, sldata, vedata, NULL, NULL, false, false);
if (ma->blend_method == MA_BM_CLIP) {
DRW_shgroup_uniform_float(*shgrp_depth, "alphaThreshold", &ma->alpha_threshold, 1);
@ -1272,6 +1278,7 @@ static void material_transparent(
/* Depth prepass */
if (use_prepass) {
*shgrp_depth = DRW_shgroup_create(e_data.default_prepass_clip_sh, psl->transparent_pass);
DRW_shgroup_uniform_block(*shgrp_depth, "clip_block", sldata->clip_ubo);
cur_state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS;
cur_state |= (do_cull) ? DRW_STATE_CULL_BACK : 0;

9
source/blender/draw/engines/eevee/eevee_private.h
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@ -604,6 +604,12 @@ typedef struct EEVEE_CommonUniformBuffer {
float prb_lod_planar_max; /* float */
} EEVEE_CommonUniformBuffer;
/* ***************** CLIP PLANES DATA **************** */
typedef struct EEVEE_ClipPlanesUniformBuffer {
float clip_planes[1][4]; /* must be less than MAX_CLIP_PLANES */
} EEVEE_ClipPlanesUniformBuffer;
/* ************** SCENE LAYER DATA ************** */
typedef struct EEVEE_ViewLayerData {
/* Lamps */
@ -644,6 +650,9 @@ typedef struct EEVEE_ViewLayerData {
/* Common Uniform Buffer */
struct EEVEE_CommonUniformBuffer common_data;
struct GPUUniformBuffer *common_ubo;
struct EEVEE_ClipPlanesUniformBuffer clip_data;
struct GPUUniformBuffer *clip_ubo;
} EEVEE_ViewLayerData;
/* ************ OBJECT DATA ************ */

3
source/blender/draw/engines/eevee/eevee_render.c
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@ -84,6 +84,9 @@ void EEVEE_render_init(EEVEE_Data *ved, RenderEngine *engine, struct Depsgraph *
if (sldata->common_ubo == NULL) {
sldata->common_ubo = DRW_uniformbuffer_create(sizeof(sldata->common_data), &sldata->common_data);
}
if (sldata->clip_ubo == NULL) {
sldata->clip_ubo = DRW_uniformbuffer_create(sizeof(sldata->clip_data), &sldata->clip_data);
}
/* Set the pers & view matrix. */
struct Object *camera = RE_GetCamera(engine->re);

5
source/blender/draw/engines/eevee/shaders/lit_surface_vert.glsl
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@ -14,7 +14,10 @@ out vec3 worldPosition;
out vec3 viewPosition;
/* Used for planar reflections */
uniform vec4 ClipPlanes[1];
/* keep in sync with EEVEE_ClipPlanesUniformBuffer */
layout(std140) uniform clip_block {
vec4 ClipPlanes[1];
};
#ifdef USE_FLAT_NORMAL
flat out vec3 worldNormal;

10
source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
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@ -1,9 +1,11 @@
uniform mat4 ModelViewProjectionMatrix;
uniform mat4 ModelMatrix;
#ifdef CLIP_PLANES
uniform vec4 ClipPlanes[1];
#endif
/* keep in sync with DRWManager.view_data */
layout(std140) uniform clip_block {
vec4 ClipPlanes[1];
};
in vec3 pos;
@ -12,7 +14,7 @@ void main()
gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
#ifdef CLIP_PLANES
vec4 worldPosition = (ModelMatrix * vec4(pos, 1.0));
gl_ClipDistance[0] = dot(worldPosition, ClipPlanes[0]);
gl_ClipDistance[0] = dot(vec4(worldPosition.xyz, 1.0), ClipPlanes[0]);
#endif
/* TODO motion vectors */
}